Find cheap flights from North America to Illinois

Find cheap flights from North America to Illinois

Round-trip
Economy
Boston (BOS)
Illinois
Wed 1/27
Wed 2/3
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Illinois

Good to know

Low season

August Best time to beat the crowds with an average 5% drop in price.

High season

December Most popular time to fly with an average 18% increase in price.

Average price round-trip

$340 (avg. price over the last 2 weeks)

Good deal round-trip

$94 or less

Good deal one-way

$59 or less

FAQs for booking flights from North America to Illinois

Which airlines have a flexible cancellation policy for flights from North America to Illinois due to COVID-19?

Which airlines apply social distancing measures on flights from North America to Illinois due to COVID-19?

How does KAYAK find such low prices on flights from North America to Illinois?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from North America to Illinois?

What is the Hacker Fare option on flights from North America to Illinois?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from North America to Illinois?

Top 4 airlines serving from North America to Illinois

Scores according to KAYAK customer reviews

7.2
American Airlines
Overall score based on 45,062 reviews
7.5
Boarding
7.1
Comfort
7.8
Crew
6.8
Entertainment
6.7
Food
Airline reviews

Cons: "Of the 4 FA only 2 were pleasant. The others were short and accusatory, not with me but other passengers not okay American"

Pros: "Everything was done in a good amount of time."
Cons: "Better room in seats....feels really tight"

Pros: "Staff, plane, ride - one of the nicest flights I've had in a long time"
Cons: "Nothing. Well, if you paid me to fly ;)"

Cons: "They cancelled the Flight and we had to book with Air France instead and made us late to our cruise"

Cons: "Flightleft 2 hours late and then an extra hour waiting at the next gate."

Cons: "My entertainment screen was not operating. Could not recline my seat."

Pros: "The movie selections"

Cons: "There was no entertainment at all, and pretzels are gross"

Pros: "It was not crowded breakfast"
Cons: "Breakfast was lousy"

Pros: "Flight was under 4 hours."
Cons: "No where to store carry on since everyone is allowed to bring larger bags than they should so you end up having to stuff everything under the seat leaving no room for your legs. Very uncomfortable!"

Cons: "Flight attendants completely unresponsive when overhead space was filled by a lot of backpacks that supposed to go under seats. Also, kept selling alcohol to people who were clearly drunk and were obnoxious and loud the whole trip."

Pros: "The staff was fantastic"
Cons: "Well my flight got delayed four separate times. I was stuck in LAX for 3 hours. So much that booked another flight with another airline for the following morning. I had to book a hotel nearby LAX just so I could somewhere to sleep for the night. My luggage made it to Chicago safely, but I didn’t at least not with American Airlines. It took them an hour to tell us that they reassigned the pilot to another flight, not only that when it was delayed the first initial time (40 minute delay) about ten minutes before we were supposed to board they tell us that the flight attendant crew is going to take 30 minutes to get to the gate. Not only but those poor airline service staff were completely unaware of all these changes! They had to find out from the passengers what was going on. Honestly I will never fly with American Airlines ever again!!!"

Cons: "Not the best. Marginal food and hassled about carry-on that fit the size requirements. More like premium economy."

Pros: "Pilot was informative."

Pros: "Staff at gate were very nice"
Cons: "Flight was delayed three or four times throughout the day"

Cons: "I missed all my flights and my bags because of a stupid delay made by the airline."

Cons: "Small seats."

Pros: "Flight was on-time and crew was pleasant. This flight had movies available to watch!"

Cons: "Never given instructions on use if inflight WiFi. No food service on a three hour flight???"

Cons: "Check in process was an overbooked disaster Plane was very old Staff at gate and onboard were very rude"

Pros: "I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn."
Cons: "I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity"

Cons: "So little space between seats. Barely no legroom at all. I’m 5’ 5” and still found it tight. Feel bad for all tall or big ppl."

Pros: "On time arrival. Entertainment system worked on this Airbus, unlike the Boeing 737 (updated, but still outdated!) on the way out."
Cons: "Limited and unimaginative food options on board"

Pros: "Friendly staff."
Cons: "Uncomfortable seats."

Pros: "Staff was friendly"
Cons: "There were no veg options for sandwiches and food ran out after boarding group 6."

Pros: "Everything"

Pros: "(mostly) friendly staff, decent chairs, decent set of movies available. (First leg by American, second leg by British Airway)"
Cons: "Paid for seats, never got them, ended up in a cramped flight with no room (I'm only 5'5", so heaven forbid average height people try to sit here. My wife was miserable, and got a back ache because of the small quarters."

Pros: "Very clean. Staff was very friendly."
Cons: "Paid extra for six inches of leg room but the seats recline 2 inches. Not comfortable. TV touch screen did not work."

Pros: "The check in agent went above and beyond to get us on board."
Cons: "Couldn't check in online. Couldn't get a straight answer as to why. Kept getting the runaround from Kayak, American Airlines and British Airways. Never booking through kayak again."

Cons: "It was cancelled"

Pros: "Flight crew was excellent."
Cons: "We booked flights through British Airways but flew American Airlines. The check in process was a stressful mess: we were forced to stand in long customer service lines both on our first flight from LAX to Chicago and again during our very short layover in Chicago to Dublin to ensure that our bags were checked all the way to our final destination. Very stressful, and it didn't help that the gate crew was extremely rude and unprofessional. It is very inconvenient that we could not choose our seats beforehand."

Pros: "Great service and friendly stafg"
Cons: "Loved the yourt for breakfadt...rest of it was ok"

Pros: "Entertainment on long flights is vast. Flight attendants are nice and are prompt with requests."
Cons: "Bags that are told will be planeside end up being sent to tne final destination and no tags are given to the riders to let them know beforehand. Workers at counters were very rude."

Pros: "Flight on time."

Pros: "I like the comfortable chairs and screen touch screen in the seat in front of me"

Pros: "Boarding was a mess - there were no announcements about boarding and the gate agent did nothing to promote order in the gate area. Thank goodness for the new planes on this route - the old planes with the blue "leather" seats were so overdue to be retired. Onboard entertainment was great and every seat had a USB port and AC outlet. Smoothest landing ever, I couldn't even tell when the wheels hit the pavement! It was also the first time I recall a female captain on American - maybe the smooth landing wasn't such a coincidence :)"

Cons: "Our original aircraft was taken out due to a mechanical issue. When we got our replacement aircraft, somehow we were missing a crew member. So after a one-hour delay for a new aircraft, we boarded, then sat at the gate for another hour and a half waiting for an additional flight officer. Missed my connecting flight from Chicago to Dayton and had to be put up in a hotel 30 minutes away from the airport."

Pros: "Plane was the best. Newer model and took us one less hour to get to our destination."
Cons: "Boarding was a little messy. We had to wait even though we had a toddler with us."

Pros: "Entertainment us on point!"
Cons: "Boarding sucked, 90 mins delayed and made us check in bag. The snacks are TERRIBLE - no thank you."

Pros: "AA flights now have individual screens with free movies/videos/music/games. Power outlet and USB port included. Staff was polite, helpful"

Pros: "Everything"

Pros: "excellent in flight experience, crew was helpful and friendly. Overall a great experience"

Pros: "I don't normally travel long distances, but when I do I fly with American Airlines. I found a round trip from Chicago to Los Angeles for only 170 dollars. I had an overall excellent experience. Thanks for the great hospitality."

Pros: "How spacious it felt and there were film selections"
Cons: "My film kept stopping randomly."

Pros: "Nothing."
Cons: "Cramped, claustrophobic space. Cabin too warm."

Pros: "Crew was nice"
Cons: "Usual delays in 15 minute increments. Then when we landed waited on Tarmac for 15 minutes then were dropped off at a remote terminal and left to wait for 4 buses to come and pick us up 45 minutes later, one bus at a time. Almost felt like I was in a third world country."

Pros: "Crew was nice and understanding how uncomfortable the flight was."
Cons: "The seats are now smaller than ever. AA made them more marrow, closer together and less reclining. With 1.2 mil miles I am switching to drlta."

Cons: "Flight delayed turbulence out of control!"

Pros: "The Crew found and solved the problem."
Cons: "My Family and I missed our 5 a.m. flight Tuesday. We then missed one more 6am. Everyone helped my Family and I to get the 8 O'clock flight. Which we did. And had a good trip home. Missing those flight was not made by my Family. But solving that problem was done smoothly. Sharon T."

Pros: "Crew was above and beyond. Really helpful and kind."

Pros: "Price"

Pros: "Very good flight. I would recommend United Airlines"

Pros: "The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified.."
Cons: "the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time.."

Pros: "Not many passengers on plane."
Cons: "Three hours late taking off."

Pros: "Landing safely"
Cons: "I upgraded to a seat right at the front. Still ended up in boarding group 3, no room for my overhead luggage so I had to put it half way back on the plane. My $45 upgraded seat wouldn’t recline because it was broken and I still had to pay to have a bad checked. Oh, and the flight attendant simply said “ok” when I informed her of my seat malfunction."

Pros: "Flight crew was polite"
Cons: "Took forever to board and exit the plane"

Pros: "The crew and flight attendant were very courteous and engaging. Great customer service. I noticed a gentleman who was boarding the plane and asked for some water and the attendant dutifully and courteously provided him some very quickly."

Pros: "Always love flying United. They even gave my mom the extra snacks since she mentioned how amazing the new snacks were and they were so nice!"

Pros: "The trip was fine. No complaints."
Cons: "We specifically booked this flight so that we would be able to be with our daughter for her 1:00 pm appointment at the Huntsman Cancer Center in SLC. Our flight was cancelled the night before and later rescheduled with a 3 1/2 layover so we missed her appointment completely."

Cons: "They took so long to open the doors almost mis my connecting flight"

Pros: "The staff was attentive to our needs regarding seatis."
Cons: "Food choices remains not so good"

Cons: "2.5h hours delay almost made me miss my second flight that day. Also agent didn't seem to know anything so wasn't able to help."

Pros: "The flight was smooth"
Cons: "The flight didn't offer PDE"

Pros: "Staff was courteous and kind, very professional."

Pros: "Everything"

Pros: "This regional airplane was extremely comfortable! The flight was comfortable and the crew was very helpful."
Cons: "I wasn't too excited that the in-flight entertainment quit working about five hours in, but the crew did their best to remedy the situation."

Pros: "Nice"

Pros: "Overall experience was very good"
Cons: "Meals on flight"

Pros: "The trip TO the United States was bearable."
Cons: "This flight was a complete disaster. I ended up b=on a different flight to Newark, as my flight to Chicago got canceled. Then that fight was unable to land, so I spent hours in baltimore, and missed my connecting flight to Brussels. By the time I finally arrived, 4 hours late, to Newark, I had to spend 2 hours in a line to get re-book, for a flight the next night. I was compensated for all this mess with a $10 food voucher, and had to get a cab from the airport to the closest and cheapest hotel. My flight to Brussels was uneventful, save one rude flight attendant, and I got to school a day late."

Cons: "No room for bags .."

Pros: "Fast flight. Staff was friendly. Tsa was not that difficult. Overall it was nice."
Cons: "Overcrowded plane...but the flight back was nicer.roomier seating"

Pros: "The friendliest gate personal very good timing in flying out and arriving seating not a problem and I just loved it"
Cons: "I didn't like that I flew delta getting to Atlanta"

Pros: "I needed to change my plans last minute. I booked (very affordable same day flight), was able to add the confirmation to my United app within minutes and, of course, United was on time and I got home so much earlier. United really came through without any booking issues at all!"
Cons: "Nothing. United is everything you expect from an airline."

Pros: "On time, even arrived early. Nice, clean plane. Good experience."

Pros: "Boarding was easy and quick. Staff was very friendly."
Cons: "Seats."

Pros: "The people were friendly and everything went smoothly even with a little computer malfunction they got us in the air on time. Thoroughly enjoyed the the experience."
Cons: "We had no complaints."

Pros: "Nothing really"
Cons: "A/C was not working and hot air was blowing so the whole flight felt like we were in a sauna. Everyone was sweating, children crying. Called the flight attendant and no explanation other than "we know" but sounded more like "not our problem, deal with it". They should stop saying "let us know if there is anything we can do to make you comfortable". Meaningless. United and most US airlines really need to take a step back and figure out what's there vision of service. Most of them are in deep trouble, you can tell by how dissatisfied most of their employees are. How about bringing some top notch foreign airlines to compete?"

Pros: "Smooth as silk!!! On time and my flight attendant was super attentive helping with fitting in all the carry on bags in the overheads."

Pros: "Organized boarding"
Cons: "Did not allow our emotional support dog with the letter our doctor had written. Was told it needed his license number. It is no longer required! The letter is good with 2 other airlines which we travel on frequently."

Pros: "Able to rebook us on delta"
Cons: "Plane was delayed, then mechanical issues made us deplane"

Pros: "Clean plane, seats and on time performance"

Pros: "Flat is very easy and nice."

Cons: "It was extremely cold on the plane"

Pros: "Everyone was nice, good flight"

Cons: "Not enough space to sit at the gate. There's been a trend lately to start checking all carry on bags due to space, but then you get on the plane and there's PLENTY of overhead space for your carry on."

Pros: "The flight not being cancelled at least. Clean plane"
Cons: "Almost 5 hrs delayed. Ruined the surprise I was planning for my family. Not due to weather and no other explaination from United other than "these things happen""

Pros: "Safety was emphasized and carried out by the pilot and staff."
Cons: "The boarding process in Atlanta and masses of people bunched up made for a disorganized boarding process."

Pros: "Quick, simple, easy to set up. Saved us from spending overnight in Atlanta waiting on Southwest."
Cons: "Nada."

Pros: "Being upgraded"
Cons: "Nothing was bad"

Pros: "you guys have tvs in the headrest and its spacious in the seating area. you all treated me way better than spirit airlines!"

Pros: "Roomy planes. In flight entertainment. Great service."

Pros: "We were flying from Atlanta to Chicago to Jackson Hole (50 minute layover). Because of bad storms the flight was delayed for hours but they got us on a different flight through Denver and we still arrived on time, and with all of our baggage. Great job!"

Pros: "The crew was very informing and they fly attendants were very polite"
Cons: "Once we arrived Ohara airport this went from bad to worse. The plane arrived late and the we sat in the airplane for over 2hours because of repairs being made. I feel like the crew cold have been more forthcoming about what was happening it took at least .30min before we were told anything. After sitting on the plane for over 1 hours they finally move us to a new plane to board all over again it was very unorganized ."

Pros: "Attendants were very courteous and helpful"

Pros: "On time; uneventful flight. Perfect!"
Cons: "Instead of pretzels they handed out ranch flavored items; I have food allergies to seasonings. I prefer just plain pretzels"

Pros: "I like the friendliness of the crew and trying to do the best to make our flight comfortable as possible. The plane was very big&nice. By S.K"
Cons: "I didn't like that i didn't have much leg room &scrunched in a three seater.And my ride home was a lil bumpy i guess due to the weather."

Pros: "All of the United personnel were pleasant, professional and very helpful. The connectivity for my devices at the boarding gate was an excellent idea."
Cons: "The seat on my return flight from Chicago to Atlanta was extremely uncomfortable. Also the charging ports at my chair in Chicago would not work."

Pros: "Staff was friendly and everything was timely. The operator on the phone was also great. Had the best deals for flights from Atlanta to Chicago for same day purchase."
Cons: "The seats on the Boeing 737 were very uncomfortable."

Pros: "My daughter and I sat in Economy Plus which was great because it was towards the front and plenty of leg room. We both have long legs, so this extra comfort made our flight much better and relaxing."
Cons: "One of the Flight Attendants was crabby and unpleasant. This was the first time I've ever had an unpleasant Flight Attendant on a United Flight. I travel quite a bit for business and always try to fly United. I always carry a large purse which always stays on my lap and her and I went back and forth because she insisted that I put it on the floor under the seat. This really upset me."

Pros: "Allowed personal item. (purse, backpack) Crew was mostly patient and courteous. Got there and came back! No luggage lost."
Cons: "My flight from and to my destination included being harassed by a drunk passenger. I didn't complain to the attendant because causing a scene was the last thing I wanted to do after a flight delayed 1.5 hours. They should test for drunkenness. Don't get complimentary water. Must pay for carry-on."

Pros: "I enjoyed that the flight was very quick."
Cons: "Everything else. The staff smiled as we boarded but that was it. Mind you, water was even a charge. I highly doubt I will ever use this airline again."

Pros: "Everything was good"

Pros: "We didn't use the ticket!!!!!!!! This is not fair . The problem to register in the airport"
Cons: "Give me another ticket"

Cons: "You have to pay for water and a carry on ? Weird."

Pros: "Great flight on every measure."
Cons: "Realize there are fees even for carry on luggage."

Cons: "the flight was delayed and then cancelled for equipment. no one from frontier addressed any passengers at the gate until after the flight crew had mentioned the cracked windshield and "what the hell are we going to do for 24 hours." eventually, after an hour and a half, the unhelpful staff gave out pre-printed snips of paper with outdated instructions on who to call and how to rebook or ask for a refund. after a fifteen minute phone call they said they'd cancel payment and that it would take 5-7 days, so I had to cancel my trip."

Pros: "Frontier is the new breed of airlines that will soon be charging you for the air you breath on the plane! There is nothing I can recommend about this airline. Every step of the process involves additional charges including charges for seats, early-check-in and carry on luggage…. carry on luggage is an additional $40.00!!! Many of the other passengers felt misled and this resulted in a number of frustrated, angry and disappointed people at check-in."
Cons: "All of the concealed extra charges; seats were too small for an average adult."

Pros: "The price. Ok for short flights only."
Cons: "It is an Airbus, but a bus is more comfortable. The seats are hard and cramped. The base price may be great, but be aware they charge for extra for everything including carry-on if it does not fit under the seat."

Pros: "Boarding was easy."
Cons: "all economy seats are in a fixed position and do not recline. In order to get a seat that reclines you have to upgrade for an additional $50 per seat. Non-reclining seats are OK for short hops but are extremely uncomfortable for long hauls."

Pros: "Cheap airfare for sure"
Cons: "Flight attendants who argued over seniority, and tried to one up each other. Also I was in the aisle seat and one FA kept accidentally hitting me in the head with trash bags"

Pros: "I didn't like anything."
Cons: "It was an hour late. The seats are completely uncomfortable and you get charged for water."

Pros: "On time ."
Cons: "Baggage fee"

Pros: "The staff at the airport was outstanding. The prices were great. Pilot gave constant updates on why we weren't taking off. Yes, we were quite late in our departure but it was not the fault of the airlines."
Cons: "The flight attendants were not the friendliest."

Cons: "Flights are expensive, especially once you have to pay extra for every checked and "kiosked" bag. I firmly believe that at least sodas and coffee should be complimentary; to offer nothing without handing over MORE money once already on the plane just feels plain stingy."

Cons: "I paid for my flight but when I tried to check in, I had to pay for my seat and carry on for each way. Orange juice costs money on this flight. Seats are half of the size of regular seats and does not recline. It was like sitting in school room chairs for 4 hours and 37 minutes on a full flight. Water is the only thing that you can have without paying. I just didn't understand what I paid for... when I also had to pay for a seat. Was it the cost of fuel on the aircraft? Trays are half of the size of regular tray... custom forms barely fit on top of it. Brace position is not going to do anything to us with those plastic seats in case of emergency."

Pros: "N/a"
Cons: "N/a"

Cons: "I paid extra to be in the front row for ease of getting off and on the page. However, I was given no warning that since I didn't have a chair in front of me, I would have to store my purse as well as my carry on Also boarding was kind of a clustered mess."

Pros: "I liked the low price"
Cons: "I didn't like that as a disabled young person the airline did not accomodate my injury. The previous 7 times I've flown since my injury each and every airline has given me priority boarding AS WELL as priority seating with more leg room. I cannot bend my right knee enough to sit in a regular airline seat. The entire 4 hour plane ride I was in pain and had to consume more then normal pain medication to make it through the flight. It's absolutely unacceptable in 2016 to comepletely disregard persons with disabilities when it comes to flying. I plan on writing a letter to Frontier airlines, as well as any affiliated companies they work with. I will not rest until it's assured this does not happen to anyone else."

Cons: "There was food and crumbs all over the floor. Food mashed into the carpet. The seats don't recline from what I could tell. VERY uncomfortable."

Pros: "Being on time."
Cons: "Did not like all the extra charges. Should just put it in price of ticket."

Cons: "The crew and the flight attendants were fine but the seating on the aircraft was uncomfortable when you add all the additional charges in for baggage and seat assignment Frontier is no different than other carriers it's a wash"

Pros: "day 1 flight from mco to ord time 555 pm fine but next day when i wanted to return home i got blasted with a message that i was secheduled for early take off at 555 i had no idea that my flite home was at 555am somewhere i screwes up ,"
Cons: "next day i went to ohare at 330pm and wanted to log in for my flite home as far as i knew time was the same 555 but this turned into 555am which i had no need for at the sales desk they gave me a new ticket for the next morning at 555am and i got a window seat in row 70 after an hour of being squesed in the seat and when i told the stewerdessi was a disabled vet she took me up front in row 7 there were 6 empty seats on hand with extra foot room and i could stretch out my injured leg i spent 15 hours in side the airport but i did get a cot and a pillow and blanket this saved my day robertjroper77@gmail.com"

Pros: "The crew is friendly and the flight was on time"
Cons: "You think frontier is saving you money? Think again, therms have hidden charges, upon check in you have to pay extra to be assigned any seat + your carry on to be placed on the top compartments it's also an extra fee"

Cons: "Crying toddler kept hitting my daughter's chair and when my daughter asked the flight attendant of she could move to an empty seat, she told her no. Will never fly frontier again"

Pros: "Nothing"
Cons: "The flight attendants were rude and not helpful"

Cons: "Flight was old and couldn't adjust seat when we get to airport was big line and only one agent working I won't take this company any more dispointed"

Pros: "Boarding was very fast and smooth. The flight was very lightly filled so guests were allowed to sit wherever they wanted. The flight staff was very friendly and the plane was clean. The plane landed earlier than scheduled at the destination and we were able to exit the plane immediately."
Cons: "Seats are uncomfortable, no complimentary snack or even drink. I was aware that guests are charged for carry-ons, so I planned ahead and packed all of my belongings in an under the seat carry on."

Cons: "Cheaper, non-reclining seats, like Spirit."

Pros: "The flight out was great, it was the return flight that sucked"
Cons: "The extra $9-30 dollars for the seat The $2.99 charge for snacks The $2.99:charge for water(ice was free)"

Pros: "Flight was great, frontier staff is the best."

Pros: "carry on and handbags should be free, especially for international travellers who do a short trip within the country and stay for few weeks, this would be helpful economically. Try this, if we show our international limited stay and we do a trip within this period to intercity this could be a welcome relief. Right now, my parents are in that category and I am seeing them juggle with their luggage limitations."
Cons: "limiting to free either carry on or handbag"

Cons: "The plane was the worst plane I have ever been on. There were also too many hidden fees."

Pros: "Not crashing."
Cons: "Everything is sold separately, pay for seat, pay for luggage, pay for beverage. I really wanted to chew someone out for leaving us on the tarmac 2 hours. But who? Not the crew. Horrible experience."

Pros: "On time, zone 1 boarding, lots of emergency exits"
Cons: "Paid extra for more leg room but the seat didn't recline at all, everything is an extra charge, loud plane, felt very cheap."

Pros: "I liked that the airline later gave us a voucher for $100, however I do not feel the amount given was even close to was owed for the amount of trouble we were caused by the poor customer service of the airline."
Cons: "1. Having our flight delayed over 5 hours for "weather delays" in a city that had nothing to do with our route 2. No communication from the airline about the delay prior to the flight 3. Having to sleep in the LAX airport with my pregnant fiancée 4. Being told that we can't get on our flight in Chicago although we were to the airport more than 45 min prior to departure time 5. Horrific customer service"

Pros: "Got a good round trip into O'Hare at a good price."
Cons: "The luggage fees are a complete joke $40 a piece. Plus like in the not to far back several years ago no chocolate chip cookies and everything comes at a cost. Yes even coffee."

Pros: "Nothing"
Cons: "8pm flight progressively delayed until 3am on outbound Ord to Den leg THen on return 7 pm flight delayed until 11:30pm on Den to Ord leg With kids this was absolute misery"

Pros: "Timely boarding, flight left and arrived early"
Cons: "Uncomfortable seats, no plug in for electronics, no wifi."

Cons: "Seats. Room. Service"

Pros: "Flight canceled because of weather. Frontier gave us options. Ability to take another airline flight to our destination and still keep our Frontier return flight."

Pros: "It was great for the price"

Cons: "Seriously, it was a horrible experience. Everyone complains that they're misleading with the cost, but it really just adds up to what you pay on other lines, maybe slightly less still. BUT, so not worth it. Spend the extra money elsewhere. Terrible customer service. Seriously, there were 3 people that were nice, everyone else was flat out rude. Both on the phone and in person. And I was nice to them even though I was really upset, which was hard to do. Our first flight was delayed 8 hours for maintenance. We got a $10 food voucher and a $100 flight voucher. Not the best compensation considering the duration of our time in the airport and the cost of food, plus the fact that our flight was more than $100. We couldn't use the flight voucher on our return flight because it was already booked (even though a supervisor prior to that said we could), so that was worthless since I have no interest in flying with them ever again. I found out later that the flight voucher can at least be used for baggage and seat selection on the return flight, which no one mentioned even when I specifically asked multiple people (including a different supervisor) what it could be used for. But that didn't help me out either since... the flight back was flat out cancelled 40 mins before it was due to leave because they didn't have a crew to fly it due to weather issues elsewhere. The next flight they could get us on was two days later or 2 weeks later... We got a refund, but of course since it was such short notice then booking on another airline was far more expensive and they don't make up the difference. It seemed like Frontier runs things so tight that they don't have any backup plans for what I would assume are not wholly uncommon things, like maintenance and weather issues. And, as other people have pointed out, they were the tiniest seats I have ever seen. All I could think once we got on the plane was, "Thank God I'm not fatter or taller and thank God we weren't stuck on the plane itself!""

Pros: "The crew"
Cons: "The discomfort and overcharges, most uncomfortable flight ive ever taken. I had to pay $17 extra for a regual seat."

Pros: "Got in early! Left on time!"

Cons: "Flight attendants"

Cons: "I got charged for selecting my seat. The additional cost was never mentioned before booking my trip. I won't fly frontier again!"

Cons: "It wasn't the flight although it very tight quarters. Also had to pay more for carry on baggage and also had to pay for the check in baggage therefore, I had to pay $85. more than I expected. I wanted to rent a car. I had never rented a car before. Expedia rented my car at 10 am and I didn't get to Orlando until 11 pm. They had already rented my car, so they charged for a bigger car. The ol bate and switch. I was in a pickle, so instead of paying $57. I had to pay $238. Therefore my inexpensive trip sure was very expensive."

Pros: "Got to destination early."
Cons: "Noisy airplane and flight."

Cons: "The flight attendants were very rude"

Pros: "Price and big chair"

Pros: "Affordable and decent flight! Totally worth it! At first I thought it’d be questionable because it was so affordable, but I felt safe and it was no different than any other flight I’ve had."
Cons: "Seats were tight, will pay the extra $next time for more space."

Pros: "The price was good, but the service was not so much."
Cons: "when the flight got cancelled, they don't offer alternative with another airline, and no hotel accommodation given."

Pros: "nothing"
Cons: "1hr. inetion flight delay than a 15 minute tar mat delay on departure a nd 20 minute tar mat delay againin chicago"

Pros: "Better Boarding gate area in ATL compared to ORD. Quicker ground crew support at O'Hare on arrival. Gate agents announcements were timely"

Pros: "At one time I excused the consistent lack of customer service. I overlooked feeling simply like a number, for price but I was sadly wrong. Worse customer service on the planet..."
Cons: "I arrived at 5:40 stood in line not knowing more check in machines one the other side of where the customers stood. (Had the agent focus on us instead of being on the phone). Had check in on the drive there got there and was told I need two check in prior to 40 min of my flight. I said mam it's 5 min after if You try help me I'll make it. She sent me to another line, then they sent me to another line so he could say no refunds I should have read the fine print..... KICKER TO ALL THIS I MISS MY AUNTS FUNERAL AND THAT FLIGHT WAS DELAYED ONE HOUR... if they had pretended to do some customer service I'd have made my flight and her funeral."

Cons: "It was horrible I spent 100 dollars because I didn't make it at 5:45 but I still got there 40 minutes before my flight I am very upset!!!!"

Pros: "Flight was on time"
Cons: "No drink or food or movie or anything."

Pros: "Boarding was fairly easy and fast."
Cons: "The flight was delayed twice, which may not necessarily be the airlines' fault. Plane was pretty cramped, and we sat on the runway/taxi at o'hare for a solid twenty minutes because they didn't have a gate to pull into."

Cons: "Flight home was cancelled."

Pros: "No delays everything on time"

Cons: "Missed flight"

Pros: "After the 2 hour delay, boarding was relatively quick"
Cons: "I know this is what I signed up for, but the seats don't recline AT ALL! Even just a little flexibility would've helped. Also, this particular crew was a tad bit rude. The attendant got on the intercom and kind of shamed people for using social media."

Cons: "The overall flight was OK but I will never use spirit again."

Cons: "Boarding times kept changing. First being delayed and then changed back to on time. I almost missed my flight."

Pros: "I'm sorry I can't think of something memorable to say I liked. The plane was somewhat newer and the stripped down seats weren't completely uncomfortable like we expected. This flight crew performing the pre-flight weren't annoyingly sassy and jaded as the ones on 1st leg of the trip."
Cons: "Out going flight we were charged $55 for 1st carry on bag besides personal carry-on. The return flight it was announced that that item had no additional fee. Who do I contact for refund? Extra fee ate any savings and we already packed light like hobos. Tray table was too small to support my reading material (5" by 12"). Just prior to landing there was some motor/hydraulic device that made a very loud annoying noise like a kazoo drowning out sound of fussy babies/children. The sound lasted about 15-20min; even 10min after landing. As an industrial mechanic, I know what those sounds can mean and it gave me the impression the plane wasn't in good mechanical shape. We didn't know that the low cost meant that all comfort and amenities would be cut too. Our experience will be a large factor in choosing airline for future travel."

Cons: "Flight delayed by 1 hour. No room in the terminal to sit. Finally boarded. Once everyone had boarded, they made an announcement that apparently they forgot to do the required inspection over night. The entire plane had to get off the plane with their belongings. We waited another hour. Then had to reboard the plane"

Pros: "staff was excellent in atlanta"
Cons: "hidden fees baggage prices"

Cons: "It took the airlines hours to handle baggage. The 50 dollar baggage fee is also ridiculous."

Pros: "The crew members are good people. Pretty sure spirit airlines pays them horrible."
Cons: "always late and hidden baggage fees are ridiculously high."

Pros: "The airline arrived on time."
Cons: "I was charged $65,00 for a bag. I was not aware that you could not take a bag on board. I spoke to several individuals, who were not charge."

Cons: "The flight was delayed 4 hours, there were mechanical problems, terrible communication between the crew and the maintenance workers, the plane was horribly uncomfortable and cramped, and then we had to sit on the strip and wait for 20 minutes once we landed. Never using spirit again."

Pros: "My flight was very good quiet and Peaceable. Not many passengers on board. The crew was very friendly. Above all it was a safe trip."
Cons: "No complaints"

Cons: "Departure out of Chicago was delayed as was return flight out of Atlanta. Once return flight landed we were on the tarmac for close to an hour waiting for a gate to clear. Terrible experience all around."

Pros: "Service"

Cons: "Delay"

Pros: "Every thing"
Cons: "Liked everything"

Pros: "The crew was the only good thing."
Cons: "I was 2 hrs early for my flight and because the baggage claim crew wanted to gibber gabber with each other and everyone I almost missed my plane. Your check in was awful. Don't get me started on your baggage fees!!!"

Cons: "A complete trap. Initialy i was happy thinking I got a good price on the ticket (cheaper then others) but as soon as you go to check in, it's more expensive on checking bags. ($50) They don't allow a small carry on! ($100) They don't even give out complimentary water. (Only $3 bottle water) I will never fly with Spirit again, a complete trap! I fly often but hadn't used Spirit before, this was the first & last time."

Pros: "My flight to Chicago was good My flight from Chicago was horrible (a nightmare)"
Cons: "One of the supervisors that I had to deal with was the worst that I have every experienced."

Pros: "The flight itself was fine."
Cons: "The flight left 2 hours late. The connection left 10 min before the flight arrived in Chicago. Spirit could have held the connection but didn't even try. The next flight was sold out so I had to pay for a hotel. It was entirely Spirit's fault be they took NO responsibility for it. Never fly Spirit and I will share with all my friends."

Pros: "The crew was excellent and we enjoyed their interspersed of jokes with their safety spiel."

Pros: "Flight took off as scheduled and arrived ahead of time. Flight attendants were friendly and attentive. Good deal for the money."
Cons: "A free cup of water would be nice, but I understand it is part of the trade off for low fares."

Cons: "It is so much more expensive than the other airlines - $55 for your carry on and $15 to have a seat - each way. This is adding $140 for a round trip. Customer service is very poor (ATL airport), the ladies here pick and choose who they want to be nice to. It seems that they are OK to just performing a mediocre job, probably because their standards are very low. They need a lot of training in this area. Do not recommend this experience."

Pros: "Excellent"
Cons: "Nothing"

Cons: "The flight was cancelled"

Cons: "Flights were canceled hours before the flight was scheduled to leave. The customer service attendant never tried to rebook us, she just stated that everything was full and there were no flights to rebook us on before Christmas night. This forced us to drive to our destination."

Pros: "Everything"

Pros: "Why do I have to pay $55.00 for a carry on out bound and inbound for a total of $110 . More than the cost of the ticket"

Pros: "Nice trip"

Pros: "The attendents are very friendly and welcoming. The ticket price is great especially for an impromptu trip."
Cons: "The plane was very cramped and my seat was broken so I had a bar jamming in my backside, with no leg room. They get you with all the hidden extras they charge. You don't hey a carry on, have to pay to choose a seat, have to pay for in flight snacks; its ridiculous. Also upon landing we were delayed at the terminal for roughly 20 mins because of poor planning and that was just tiresome at that time in the morning."

Pros: "Flight itself was without incident and crew was pleasant and professional."
Cons: "We boarded then sat on the plane for almost an hour because the passenger count was not correct and it took that long to get the correct paperwork. When we landed in Chicago there was a slight delay getting off the plane because of a gate tunnel issue. Overall well over an hour late."

Pros: "Overall the roundtrip was ok. The on board crew was great. I wasn't expecting alot from the company per the reviews that I read before purchasing my ticket so I just planned to make the best out of the situation."
Cons: "Some of the Atl service agents at the ticket counter need a course or three in customer service as well as a friendly reminder that when customers are within hearing distance they may want to be mindful of the subject being discussed. The seats are uncomfortably close and do not recline."

Pros: "Crew are friendly"
Cons: "Plane was 1:30 late!"

Cons: "It was cancelled"

Pros: "nothing, false low budget airline, tricks customers into loosing $100's. no service, no kindness, just making money until they get sued and go bankrupt"
Cons: "false low budget airline, tricks customers into loosing $100's. no service, no kindness, just making money until they get sued and go bankrupt. I was in line for 20 minutes and watched several customers be turned away for 1 reason or another and denied from boarding with no refund and no options, then when it was my turn to get my boarding pass, they told me I had to be there 2 hours beforehand for a domestic flight to check in and just pushed me away and took the next costumer."

Pros: "You pay for the ticket and thats about all you get. The crew was friendly and even cracked a few jokes on the way. The plane had maybe 40 people on it. Paid for the extra room on with an exit row seat. If you pay for the seat, and the plane is so empty you couldve sat there anyway, it would be nive if they'd refund you (yeah, i know)."
Cons: "Empty seats galore, but paid for an exit row seat for more room."

Cons: "Gate agent did not give me my boarding pass which had my baggage tag attached to it. When I asked for my boarding pass, the gate agent could not find it. If my bag had been lost, I would not have had a baggage receipt. The younger gate agent could have cared less when I brought this to her attention. Seats were VERY uncomfortable. Spirit charges for everything. Base price is OK but all of the add ons do not make the total amount favorable...it makes the experience irritating."

Cons: "we were missed to board with handicap wife but we were noticed and it was corrected. Think window seats need to be kept for handicap people since we are told to get off last"

Pros: "My experience with each employee that I came in contact with was very pleasant."
Cons: "The price for my luggage was more expensive than the flight! There are no perks, you can't even get a cup of water without a credit card! What if you're chocking!"

Read more about American Airlines
COVID-19 information

Safety measures for airlines flying from North America to Illinois

Airlines flying from North America to Illinois have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from North America to Illinois

Mandatory masks

Masks required on board, masks provided on flights from North America to Illinois

Social distancing seating

Middle seats unavailable to book on flights from North America to Illinois

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from North America to Illinois

Book cheap flights from North America to Illinois

Recent round-trip flight deals

3/12
Fri
nonstop
Spirit Airlines
2h 07m
ATL - ORD
3/15
Mon
nonstop
Spirit Airlines
1h 54m
ORD - ATL
2/5
Fri
nonstop
Spirit Airlines
2h 02m
ATL - ORD
2/8
Mon
nonstop
Spirit Airlines
2h 05m
ORD - ATL
2/4
Thu
nonstop
Spirit Airlines
2h 02m
ATL - ORD
2/7
Sun
nonstop
Spirit Airlines
2h 05m
ORD - ATL
2/19
Fri
nonstop
Spirit Airlines
2h 04m
DFW - ORD
2/22
Mon
nonstop
Spirit Airlines
2h 35m
ORD - DFW
2/6
Sat
nonstop
Spirit Airlines
3h 55m
LAX - ORD
2/13
Sat
nonstop
Spirit Airlines
4h 35m
ORD - LAX
2/12
Fri
nonstop
Spirit Airlines
2h 04m
DFW - ORD
2/15
Mon
nonstop
Spirit Airlines
2h 35m
ORD - DFW
3/16
Tue
nonstop
Spirit Airlines
2h 12m
DFW - ORD
3/23
Tue
nonstop
Spirit Airlines
2h 05m
ORD - DFW
2/1
Mon
nonstop
Multiple Airlines
4h 01m
LAX - ORD
2/10
Wed
nonstop
Multiple Airlines
4h 35m
ORD - LAX
3/20
Sat
nonstop
Multiple Airlines
1h 59m
ATL - ORD
3/24
Wed
nonstop
Multiple Airlines
1h 54m
ORD - ATL
2/8
Mon
nonstop
Multiple Airlines
2h 15m
ATL - ORD
2/17
Wed
nonstop
Multiple Airlines
1h 55m
ORD - ATL
3/4
Thu
nonstop
American Airlines
4h 03m
LAX - ORD
3/7
Sun
nonstop
American Airlines
4h 41m
ORD - LAX
2/12
Fri
nonstop
American Airlines
2h 18m
ATL - ORD
2/15
Mon
nonstop
American Airlines
2h 13m
ORD - ATL
3/1
Mon
nonstop
Multiple Airlines
3h 42m
LAX - ORD
3/15
Mon
nonstop
Multiple Airlines
4h 43m
ORD - LAX
3/21
Sun
nonstop
American Airlines
3h 59m
LAX - ORD
3/30
Tue
nonstop
American Airlines
4h 39m
ORD - LAX
3/21
Sun
nonstop
United Airlines
2h 04m
ATL - ORD
3/21
Sun
nonstop
United Airlines
1h 57m
ORD - ATL
2/8
Mon
nonstop
United Airlines
1h 30m
MSP - ORD
4/2
Fri
nonstop
United Airlines
1h 26m
ORD - MSP
2/4
Thu
1 stop
Frontier
7h 54m
SFO - ORD
2/7
Sun
1 stop
Frontier
13h 45m
ORD - SFO
5/9
Sun
nonstop
Sun Country Air
1h 36m
MSP - ORD
5/30
Sun
nonstop
Sun Country Air
1h 36m
ORD - MSP
2/18
Thu
nonstop
Delta
2h 54m
LGA - ORD
2/22
Mon
nonstop
Delta
2h 20m
ORD - LGA
2/22
Mon
nonstop
JetBlue
2h 38m
JFK - ORD
2/26
Fri
nonstop
JetBlue
2h 07m
ORD - JFK
Show more results

Recent one-way flight deals

2/5
Fri
nonstop
Spirit Airlines
2h 02m
ATL - ORD
2/5
Fri
nonstop
Spirit Airlines
2h 02m
ATL - ORD
2/4
Thu
nonstop
Spirit Airlines
2h 02m
ATL - ORD
2/11
Thu
nonstop
Spirit Airlines
2h 04m
DFW - ORD
2/10
Wed
nonstop
Spirit Airlines
3h 47m
LAX - ORD
2/19
Fri
nonstop
Spirit Airlines
2h 04m
DFW - ORD
2/2
Tue
nonstop
Spirit Airlines
3h 51m
LAX - ORD
2/6
Sat
nonstop
Spirit Airlines
3h 55m
LAX - ORD
5/24
Mon
nonstop
United Airlines
1h 30m
MSP - ORD
2/2
Tue
nonstop
American Airlines
2h 22m
ATL - ORD
3/14
Sun
nonstop
American Airlines
3h 59m
LAX - ORD
2/24
Wed
1 stop
Frontier
17h 44m
EWR - ORD
4/3
Sat
nonstop
United Airlines
2h 29m
ATL - ORD
2/25
Thu
1 stop
Frontier
17h 44m
EWR - ORD
3/20
Sat
nonstop
American Airlines
4h 03m
LAX - ORD
2/23
Tue
1 stop
Multiple Airlines
29h 24m
MSP - ORD
2/5
Fri
nonstop
Delta
1h 45m
MSP - ORD
2/20
Sat
1 stop
JetBlue
9h 29m
LAX - ORD
2/12
Fri
1 stop
Boutique Air
3h 20m
MSP - ORD
2/1
Mon
nonstop
Major Airline
4h 22m
SFO - ORD
Show more results
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First