Find cheap flights from Illinois to Idaho

Find cheap flights from Illinois to Idaho

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Round-trip
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Boston (BOS)
Idaho
Thu 6/24
Thu 7/1
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Good to know

Low season

AugustBest time to beat the crowds with an average 6% drop in price.

High season

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

Average price round-trip

$429(avg. price over the last 2 weeks)

Good deal round-trip

$92or less

Good deal one-way

$48or less

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Top 5 airlines serving from Illinois to Idaho

Scores according to KAYAK customer reviews

8.3
Alaska Airlines
Overall score based on 29,430 reviews
8.5
Boarding
8.3
Comfort
8.8
Crew
7.9
Entertainment
7.9
Food
Airline reviews

Cons: "The air wasn’t really working on the flight and it was veyy try hot outside"

Cons: "Alaska is great I love theM"

Cons: "It was a little chilly."

Cons: "Better snacks. No cost for checked first luggage"

Cons: "Nothing. I've flown on worse."

Pros: "Alaska is a great airline."
Cons: "Free food would be awesome."

Pros: "Average"
Cons: "Seat back screens. More space."

Pros: "Fast and no delays"
Cons: "N/A"

Pros: "Great! Decent."

Pros: "It was a very pleasant trip. Everything went as expected."

Cons: "Delayed. Flue season folks. If your sick just don’t travel!"

Pros: "Everything went smooth and was great besides the boarding."
Cons: "Boarding seemed to take quite quite awhile, not sure what the deal was but once we were boarded they kicked it into high gear"

Cons: "Delayed"

Pros: "Nothing."
Cons: "We were sitting in the plane on the tarmac for 3 hours waiting to take off. The crew did a very poor job announcing what was going on."

Pros: "On time"
Cons: "Price was high"

Cons: "They did not provide sanck for 4 hr flight and they should keep a few spare head phone"

Pros: "The crew was great!"
Cons: "The charge for checked bags! !!!!"

Pros: "First time on Alaska. Great experience."

Pros: "Nice movies Comfortable seats"
Cons: "Noisy air con Seat not reclining Headphone jack not working No storage space"

Pros: "crew's upbeat attitude"
Cons: "very limited drink choices"

Pros: "Friendly staff, comfortable seats"

Cons: "The USB charger on my seat was broken"

Pros: "Everything okay..... the seating is just too damn tight."

Cons: "both legs of my trip were canceled due to lack of pilots."

Pros: "Trip. Was pleasant and uneventable."
Cons: "Having to take luggage with you everywhere. Would love to check baggage but can't afford..."

Pros: "Excellent experience all around on all flights."

Pros: "It was comfortable clean pleasant and well priced"
Cons: "noise of the engines but you can't fly with out them"

Cons: "They offered a crummy cookie and literally only orange juice or water."

Pros: "The chardany was wonderful. Also easy boarding process."

Pros: "Good trip with good Ser vice."

Cons: "Free wine"

Pros: "Love the amount of space availabile for my legs!!"

Pros: "First time flying Alaskan. Out of all the US-based airlines I flew with, Alaskan was the cleanest, friendliest, and quickest."

Cons: "I needed a pillow"

Pros: "Friendliness"

Pros: "Biscotti"
Cons: "Rough landing Limited beverage selection"

Cons: "Too crowded!!"

Pros: "First off Bonnie at the boarding gate was phenomenal , She has an amazing disposition ( especially at 5:00 in the morning ) she greeted each and every customer by name and with a smile ! Our flight was delayed for 2 hours as we sat at the gate while problems were fixed . The Captain made sure he kept us informed as each problem occurred and was fixed . The rest of the flight crew remained patient and attentive , which of course kept all the customers onboard calm and patient as well . My daughter just moved to Seattle and if this is the norm for this airline I will continue to use them for my future visits ! Elizabeth"

Cons: "Can I have a refund? My flight has been delayed 3 1/2 hours and then they add another delayed flight to leave from my gate ahead of us. Wonderful."

Pros: "Efficient and comfortable"

Pros: "The plane was new but with no bells let alone whistles."
Cons: "No monitors/screens at all on plane."

Pros: "Excellent -keep the complimentary wine -great."

Pros: "Great way to quickly get from Portland to Boise."

Pros: "We needed wheelchair help. That was well done."

Pros: "friendliness of crew"
Cons: "i thought boarding was good...they just started boarding without any warning...it actually helped cause you then dont get a huge line"

Pros: "Very accommodating staff"

Pros: "New equipment"
Cons: "Sparse food."

Pros: "The complimentary beer and wine was a very nice option. The crew was very polit"

Cons: "A child crying the whole trip behind my seat. No effort by mother to stop child from crying"

Pros: "I had heard about limited food options during covid flights but everything was tasty and generous. I always appreciate it when my initial flight books my check-in to my final stop and gives me all my boarding passes at once and Delta did just that. They were also really good at communicating updates like changes to the gate."
Cons: "People should just be prepared to be asked more questions than usual. It can definitely make you feel nervous but just remember that the new covid restrictions are stressful for flight staff just as much as they are stressful for you. Be cooperative and honest and you shouldn't have any problems."

Pros: "Kosher snacks! Thank you. Screens and outlets at every seat. Safe, controlled Covid protocols including de-boarding. Excellent!"

Pros: "Delta flight took extra precaution to keep all passengers safe before during and after the flight. They communicate effectively during the flight. I will be flying Delta again and again."
Cons: "The trip was great"

Pros: "The crew very professional. My flight was on time."

Pros: "Everything from hospitality to the ease of the flight. Captain communicated to put all at ease during this time in which this pandemic has gotten many fearful of flying. Great landing as well."
Cons: "Everything was great!"

Cons: "We arrived around 39 minutes early and the whole process was very smooth"

Pros: "Crew was attentive and accommodating."
Cons: "Gates switched 3 times and all bags had to be checked because of a small aging plane."

Pros: "Calm and safe, just like I like it."

Pros: "Comfortable plane due to few passengers"
Cons: "7 hour delay after flight postponed."

Pros: "All good."
Cons: "Price"

Pros: "Crew was great"

Pros: "Son got wings, so was happy."
Cons: "No entertainment."

Cons: "It was late"

Pros: "Good snack selection. Crew was personable."

Cons: "Seat assignment for me and my traveling companion was done at gate. We had to sit in 2 different rows."

Pros: "Crew was nice and welcoming"
Cons: "Well, if our plane had been leaving on time it would've been superb."

Pros: "Seat was decent and only a $10 upgrade. Worth it!"
Cons: "Wasn’t clear what boarding group was up. I don’t usually fly delta so maybe I’m just not used to the system but something on the video screen at the gate saying where they were in boarding would have helped. I wasn’t the only one that seemed lost."

Pros: "Helpful"
Cons: "More print media to read on"

Pros: "Crew was great."
Cons: "Couldn’t hear/understand the pilot"

Pros: "Flight attendant in first class was amazing."

Pros: "The boarding was fast and very well handled."

Pros: "The Crew on this flight was great and the flight was quick."
Cons: "The flight was delayed 3+ hours and Delta kept pushing the delay out further without giving any updates as to why it was so delayed, and when I inquired at the Delta desk at the gate the woman was very rude to me as she snipped that it was a mechanical issue."

Cons: "It was delayed"

Pros: "N/A"
Cons: "Chinese Eastern did not try to help and solve my problem."

Cons: "20 minutes late"

Pros: "There was a bit of a mixup in boarding the plane but otherwise the flight was good. There was no entertainment system on this short flight. The flight attendants were very pleasant & efficient. They only served snacks on this short flight but were very good at ensuring everyone had at least one or more beverages. The premium seats were very comfortable ."

Pros: "Short flight"
Cons: "Flight attendant was not willing to go above and beyond as he stated he would. My husband asked for a coke and the flight attendant told him he could only get water."

Pros: "It was a smooth boarding, flight and exit out of the plane."

Pros: "Snacks, cleanliness and crew"
Cons: "N/A"

Cons: "From the begging they changed the flights for something totally different. It was a 14 hour trip. Awful"

Pros: "The crew was nice."
Cons: "This was an older, smaller plane and it had more leg room. Appears I’ll have to start checking Delta to see what birds flying the leg."

Pros: "This was our first time flying Delta and it was a very pleasurable experience. Boarding was very straight forward and the seats allocated comfortable. A surprise for us was being asked if we would like to move seats from the back of the aircraft to Comfort Economy (we think it was to do with weight balance! but appreciated very much none the less). The flight attendants were very professional and helpful, as you would hope all attendants on all airlines would be. We'd gladly fly Delta again anytime."

Pros: "It was a normal flight as well expected."

Pros: "On time leaving and landing"
Cons: "Every thing went well"

Pros: "I was with my friend"
Cons: "Delayed 12+ hours"

Pros: "I was given a complimentary upgrade."

Cons: "It takes time and worries to find the air train and Aeroflot registration."

Pros: "The service was amazing , the staff was honestly friendly and nice"

Cons: "Flight was cancelled"

Pros: "Great service, nice agent friendly"

Cons: "I was unable to fly at all due to a spelling error on my ticket. The airline refused to alter the ticket. Worst experience of my life, ruined my Christmas"

Cons: "Layover"

Pros: "Short flight"
Cons: "Too cold Not friendly boarding agent"

Cons: "Had a death in the family and no one would help me get back home"

Cons: "Plane was sat broken at gate and needed part to be flown in. 150 minutes delayed. Not acceptable."

Pros: "Very Comfy plane."

Cons: "I am a 5'3" 125# woman who, unfortunately, had a middle seat assignment. The passenger to my right, on the aisle, weighed approximately 375# and took up 1/3 of my seat. The arm was not able to go down comfortably, and when it did it was not usable . The passenger on my left, window seat, was probably 6'7" and had to sit with a man spread in order to fit. I could not move and was extremely uncomfortable. The plane was overbooked so I was unable to move. Therefore, worst flight ever. Plus, I paid for a full seat and was only able to occupy half of it."

Pros: "Great staff, polite and helpful"
Cons: "Small seats"

Pros: "The in-flight service was good."

Pros: "Nothing"
Cons: "Poor hospitality by alaska airline staff, especially by MrPavel at gate H4, 01nov2016, prior boarding around 0730am"

Cons: "First time we have flown First Class on American Airlines and service was outstanding and perfect! Thank you for an amazing experience!!"

Pros: "Nothing"
Cons: "Handicap issues. We were exiting on the tarmac in Charlotte- all crew left us on the plane waiting for assistance to get off. Finally when someone showed they would not come up the ramo to get my Mom. I backed her down myself while 5 bewildered airport workers looked confused."

Cons: "2 hour delays on both flights of a round trip"

Pros: "You got us there safely."
Cons: "Not sure who is at fault for running out of de-ice solution, but keeping us sitting on the tarmac without air ventilation for almost 3 hours... with only an apology and a last minute glass of water? that was terrible customer service."

Pros: "On time. Friendly and attentive staff."

Pros: "One flight attendant was very nice and petsonable."
Cons: "Already checked in and then flight canceled 10 hours before departure. Paid for preferred seating but rebooked on smaller aircraft full and had to sit in last row. Not happy and arrived 2 hours latet than original flight. Tried to explain this at gate to American employee but she told me to sit down until name was called. Probably could have had better seats earlier if she could have listened to my issue but she wouldn't listen to me. Didn't even have the chance to tell her what had happened."

Pros: "They got me there on time"
Cons: "Long delay getting off STL-CLT. Made it to gate for CLT-ROC. Then, crew delay. The usual crammed interior, cheap snacks, feeling about like a public bus"

Pros: "A cheap option to upgrade to 1st was offered that ended up being a net 0 cost upgrade for me so I took it. Comfortable on an old (but oh so nice) aircraft."
Cons: "Arrived 30 minutes early to the airport but then had to sit at a remote pad so that we ended up being 5 minutes late to the gate. A short transfer was made even more difficult, and a massive waste if time and fuel sitting and waiting. Figure out your gates early and better, and move around if needed. At the very least, bring up some stairs and buses to get passengers to the terminal and then tow the aircraft in when you have a gate available."

Pros: "Great seats in first class"
Cons: "N/a"

Pros: "Room between rows Entertainment from St Louis to Phoenix"

Cons: "Flight was cancelled with no compensation"

Pros: "Fast"

Pros: "The crew was great"
Cons: "The seats were not comfortable and boarding was a pain. Not sure why you wouldn’t want to board from the back to front. Weather grounded us at our loading airport so we were stuck with the option of staying the flight or going in the lobby."

Pros: "Smooth boarding. On time flight"
Cons: "No gluten free snacks:("

Pros: "Everything went smoothly."

Pros: "The flight was as advertised. Nothing particularly special other than reliable which was just fine with us."

Cons: "Me 6’ 200 lb sitting in middle seat next to somebody that needed 2 seats for self (pls understand I’m not unsensetive nor prejudice just stating a fact). I requested to sit in last row (of both sides of plane that were empty but attendant said sears reserved for attendants - 2)."

Pros: "Quick boarding, on time departure and early arrival. No waiting for a gate at LGA upon arrival - excellent."

Pros: "To be fair. The flight is only 50 minutes. By th time you get a drink it's time to land. It is completely unfair to the staff to have to do that. A flight like that. Have a box with a snack and some coolers that have 5 different beverages. I wouldn't even sell booze. I person can hold out for a flight that shot to get one on the connection or in the terminal."
Cons: "It's always a cramped flight. Nothing to be done except use a bigger, more spacious plane. The good thing is it's the fastest way to get to Chicago from where I lived it would take 6hrs by car."

Pros: "Spacious seats"

Pros: "Mostly friendly staff and quick flight time."
Cons: "Only half the plane got snacks and drinks. Additionally, I was forced to check my bag, which is a pretty big deal because I was connecting to an international flight and was unable to retrieve my prescriptions in all the rush to check my bag."

Cons: "The video monitor for my seat was broken. So, low entertainment score."

Pros: "everything was on tyime"

Pros: "On time take off"

Pros: "A nonstop flight, with a friendly efficient crew, met my expectations. A crew member went above and beyond when I asked for a coffee stirrer with my coke and ice."
Cons: "I've been spoiled by another airline's access to screens on the back of the headrest. I have my own hand held devices to entertain myself instead."

Pros: "The entertainment"
Cons: "There was nowhere to stow my purse and things i wanted to use during flight near me, my luggage got lost"

Cons: "Flight was late, got a message from Kayak that it was delayed 3 hours...thank goodness I happened to check again, because then it was only delayed for 41 mins, then it gave me an update that it was only 21 mins delayed, then went back to 41! Pretty inconvenient, and it would have been nice to get a text, not just some silent pop up"

Pros: "Got to La Guardia almost 26 minutes early but then waited FORTY minutes for the gate!"
Cons: "AA needs better coordination with the horrible La Guardia airport"

Cons: "Delayed a total of four hous!"

Cons: "good"

Pros: "Smooth - trouble free - calm process"

Pros: "On time arrival"
Cons: "Everything else"

Pros: "Nothing"
Cons: "The storage are very small, by the time i boarded everything was full. I had to hand carry bags and i had to put it in front of me which is a very small space already, on top of that i had the window sit so i had no space to move. it was very uncomfortable, and flight was delayed. We sat there for an hour before taking off but i understand its due to the weather but it was my worst plane ride not worth 300dollars. I will not ride american airline again."

Cons: "Everything was great."

Cons: "Only suggestion would be to make the connection process a little easier. If the passenger doesn't speak English, the fact you need to print the international ticket in Miami, then re-enter at checkpoint might create confusion."

Pros: "The flight attendants were great and very friendly!"
Cons: "The wifi wasn't very good so I couldn't access the in flight entertainment I also had my own snacks so I didn't buy any food"

Pros: "Boarding was good, Good flight , good service , plane was small for the distance with limited space for movement ,"

Pros: "I liked that the plane was clean, that the staff consisted of somewhat normal, more mature people, and that water and carry-ons are free."
Cons: "I felt that having to pay $50 extra for a seat when I checked in was pretty deceptive and unethical. I think most people would agree that when they purchase a boarding pass, it is assumed that it includes a seat. Having to pay extra for a seat was something I did not plan for and it was out of my budget, but I had no choice, because I had to get home somehow! I'll be going without groceries this week due to this unplanned expense."

Cons: "Got to charlotte with 80 minutes to connect. Sat on the tarmac for 60 waiting for a gate. Missed connection by <5 minutes. Thanks, AA!"

Pros: "Non stop"
Cons: "Airline"

Cons: "Boarding took forever, the flight was over 2 hours late which caused me to miss my connecting flight and my military orders were not honored - I still had to pay extra to take all my gear back to my duty station. Never had that issue with any other American airline."

Cons: "The counter manager at PHX, Lanell Monarrez was a total witch and whispering to Lanya in front of me was very unprofessional. I paid a full fare 1-way ticket to get out of PHX as they were not willing to allow me to fly standby or make a change to my existing ticket. Crappy airline service at the counter. Good flight crew."

Cons: "No food or beverages for me. I slept comfortably on my flight"

Pros: "Nice aircraft, clean, comfortable, friendly staff"

Pros: "The air hostess gave me extra pretzels"

Pros: "You provide me with the best ticket prices and to me that was the the most important part of of the trip thx"
Cons: "The airlines charging for your luggage"

Pros: "Plenty of leg room no entertainment so I dozed."
Cons: "People stuffing oversized bags in overhead."

Pros: "The movies"
Cons: "No Food"

Cons: "We were delayed for 4 hours, due to a mechanical issue. We were not given any forms of reimbursement. I would like a 500.00 voucher."

Cons: "Flight was delayed."

Pros: "love when they turn off the lights"
Cons: "annoying late notifications of gate changes"

Pros: "Efficient"
Cons: "Free wifi"

Pros: "Everything"
Cons: "Perfect"

Cons: "Screaming babies the entire time"

Cons: "Free WiFi kn the plane was hardly working even over US mainland, before it list connection with outside internet over ocean. But it is something I do not care much about."

Cons: "It sucked in many ways. But that wasn't united's fault. The weather was threatening lightning in Denver and of course because of that the world stops turning."

Pros: "Getting a meal and drink"

Pros: "One attendant did it all. And very well. Impressive."
Cons: "More snack options."

Pros: "I liked the tv and movie options on the United app but thought the movie selection could have been better."

Cons: "Not here as long as the last place but was still teribly confusing. The airport is not very new user friendly. I had to ask ppl multiple times where gates were and issues with time changes etc. Was pretty nerve wracking for a first time traveller to the states."

Pros: "yes"
Cons: "the plane's seating"

Pros: "Everything from ticketing to deplaning was smooth and professional."
Cons: "No problems at all."

Pros: "On time"

Pros: "Having about an hour and 20 minutes left me with enough time to explore the airport from one gate to the other without feeling terribly rushed."
Cons: "The ONLY thing negative that I can say is that the Chicago airport had no charging stations at my gate."

Cons: "No bags to go to overhead bin"

Pros: "Not much"
Cons: "The food not fit for human consumption"

Pros: "Quick boarding. Ontime departure."
Cons: "Very small servings of food."

Pros: "Happy people"

Pros: "Dr usus I"
Cons: "The keys"

Pros: "boarding very easy"
Cons: "no drinks ir snacks offered"

Cons: "Very uncomfortable plane!"

Cons: "Lines"

Pros: "Chicken wrap was very tasty. Very attentive flight crew."

Pros: "Crew"
Cons: "Wi-Fi charge sucks and leg room"

Pros: "The gate at the Chicago airport was well designed. There was a line for each boarding group, and you could line up early. This is particularly effective for some Asian flights, which can sometimes be chaotic with many different nationalities all lining up."

Pros: "Not a thing."
Cons: "Ended up missing our connector flight into Boise. They gave us a food voucher and a hotel room. Very pissed off! Made me miss a full day of work on Monday the 23rd."

Pros: "United payed for the room and 20 bucks for food."
Cons: "Late. Missed the connection to Gillette and had to stay overnight."

Pros: "See above."

Pros: "We'll coordinated."

Cons: "See above comments."

Cons: "I am Asian who was not allowed using restroom located in the front of airplane close to the 1st class cabin, but people sit next to me can. I feel insulted."

Pros: "The service was good"

Pros: "Glad you didn't give priority to those with other designations like priority plus etc"

Cons: "Plane late leaving Chicago due to no pilot."

Pros: "Great"

Pros: "Nothing."
Cons: "After our 3 hour delay in Chicago, United changed the gate 8 times and then canceled the flight."

Cons: "Lost my luggage"

Pros: "Same as above"

Pros: "Every one was friendly. The plane was clean"

Cons: "They didn't have wifi"

Pros: "no complaints"

Pros: "Was never in Chicago."
Cons: "Was never in Chicago but my stuff was."

Pros: "Perfect, but I did upgrade to United's business plus."

Pros: "Aisle seat."
Cons: "They made my dad check his bag even though there was space."

Pros: "Worst flying experience ever"

Cons: "I was informed today that one of my checked bags was picked up by another customer who eventually realized it was not her bag. She brought it back to the airport and refused to turn over the bag until the airport compensated her. (How this happened I have no idea because I stood right by the entrance of the baggage claim and never saw the bag come out). The customer refused to return the bag until the police became involved at which point she agreed to write a note confirmed she did not steal anything. The bag then needs to be sent to me in 2 days and I'll have to verify myself that indeed nothing was taken from the bag. I'm very concerned how this individual came to be in possession of my bag considering, again, I stood right at the entrance of the baggage claim conveyor belt from the time it started to when it ended. As a result, this experience really made me feel frustrated and violated."

Pros: "I got there on time"
Cons: "Why not have people board the plane based on sat number? Why this cattle call and stand in line like you're not going to get a seat? Everyone fighting for line position so they can get a place in the overhead bins? Stupid."

Pros: ":("
Cons: ":("

Cons: "The airline checkin is terrible and time consuming!"

Cons: "Never made it because of stupid United"

Cons: "Upholding mask expectations! Several passengers deviated without accountability checks by crew."

Pros: "For low fare it’s ok"
Cons: "It’s ok as we travelled as low fare"

Cons: "Staff could be friendlier"

Pros: "Boarding was just fine"
Cons: "The seats are so uncomfortable! My neck and back are sore!"

Pros: "Quick boarding,"
Cons: "45 minute delay.... not great"

Cons: "Delayed not much notice"

Cons: "Too packed in."

Pros: "Went exactly as described"

Pros: "The staff was a well oiled machine! Very funny & accommodating. They were all very friendly & helpful to all of the passengers. Everything was clean & orderly."

Cons: "Uncomfortable sits"

Pros: "Nothing"
Cons: "No WiFi"

Pros: "Nothing"
Cons: "Every thing was ok"

Cons: "45 minute delay because a passenger said he was allergic to a dog. Then the dogs were forced to ride in the luggage compartment. Three people,were charged 75 dollars for the dogs to ride in the cabin. None of the dog owners were refunded their money. Frontier said its a chance you take. The crew was charging people for water. Buyer beware. All of the fees add up to the price of a ticket on a nice airline. Don't fly frontier."

Pros: "Absolutely horrible"
Cons: "Frontier is a horrible airline."

Pros: "Friendly staff."
Cons: "Unaware of check luggage cut off"

Pros: "The staff was pleasant and helpful. The seats were more comfortable than those from Vegas to STL. Adequate leg room."

Pros: "Timings"
Cons: "Entertainment"

Pros: "Ease"

Pros: "Very cheap"
Cons: "Very uncomfortable no elbow room or leg room and the chairs are hard."

Pros: "Late...Late...Real late"

Pros: "My only good then was that I had wonderful passengers around me that were conversationalists who were entertaining and helpful!!"
Cons: "Can't you learn how to communicate faca to face with people? Let us know personally why we keep getting held up for take off, why we are being left in the dark, andehy you can't schedule more accurately! It doesn't help to fly somewhere if you miss the event you went to attend! Try compensating for our inconveniences for a change!!!!"

Pros: "Nothing"

Pros: "Everything"
Cons: "Nothing."

Cons: "Loudness And over priced EVERYTHING"

Pros: "That the staff was really friendly."

Cons: "Still waiting in St Louis"

Cons: "late with inaccurate status on website and broken kiosks"

Cons: "No wifi available to purchase"

Cons: "The hidden bag fees"

Cons: "Airplane not clean. No entertainment at all."

Cons: "The staff at the boarding gate were unprofessional. They gossiped about how they were hired on to Frontier. The girl talked about how she was fired from her last airline. I didn't hear the name of that airline."

Cons: "The people were incredibly rude"

Pros: "How fast I got to Orlando."
Cons: "No free juice."

Pros: "I don t like"
Cons: "They charge Cary on"

Pros: "Clean plane."
Cons: "Add on cost for seat and bag. Will avoid Frontier if possible."

Pros: "I like and it went good with no problems."
Cons: "The baggage Claim which I didn't know each baggage claim have each groups of what the name that you flying out which no one told me about that so its new to me ."

Cons: "Bought my tickets for my parents. My moms brother found out he had terminal cancer and wasn't going to last but 2 weeks or so a day before they were scheduled to depart. When my parents were scheduled to leave my dad tried asking for Frontier airlines to give my mom a voucher for another flight so she could stay a few days longer until he passed. Frontier airlines refused and then tried charging my dad a cancellation fee of $96. The whole reason I paid for my parents trip is because they had no money and then Frontier airlines tried charging double price for cancellation fee. My mom then had to buy her ticket home for $190. We have always used Southwest Airlines in the past due to their no fees for luggage and very accommodating to cancellations. Upsetting that during extremely hard times in our life we have the stress of picking to stay with you sibling until the end or not missing your flight."

Pros: "The price."
Cons: "Multiple delays, uncomfortable seats."

Pros: "Nothing"
Cons: "Everything, such a rip off"

Pros: "Comfort"
Cons: "No refreshments, not even water."

Pros: "Plane was clean"

Pros: "the crew made the best of a miserable corporate policy; the baggage arrived - 45 minutes after landing."
Cons: "2.0 hours late boarding; boarded 2x; lousy information; surly condescending station manager; insane baggage counter hours; no connection information in flight despite airline full responsibility for everyone on the plane being behind schedule.; connecting flight still at gate when 10 people tried to board and were not given access until a near riot occurred; no one seemed care at all. A woman with 5 week old child, a senior citizen with a cane, a woman recovering form surgery all RAN from gate to the other (about 1/2 miles) only to be told they were too late, the terminal door was closed. Only after pounding on the door, cajoling the customer service people 10 feet away and telling 50 others waiting in the service area did the door open!"

Cons: "Bag fee, carry on fee, pick seat fee, were bad.enough, but 11.00 for 2 sodas and snacks,, then asking for a tip was too much. Will pay more for any other airline."

Cons: "Lil slow"

Cons: "Nothing"

Pros: "The staff was courteous"
Cons: "The unaccompanied minor fee"

Pros: "EVERYTHING"
Cons: "NOTHING"

Pros: "...the ticket agent who got me checked and put me through priority TSA so I could make my flight!"
Cons: "The assistance of a front counter agent was horrible and made inappropriate comments to me due to me being late to my flight which was due to a faulty shuttle and short staffed rental service as if I was aware of airline policy! Even though I wanted to avoid all of lines to check in (only carry on bag) but all kiosk where out of service which why the lines where so long...the snide remarks and rude comments were not appreciated especially in front of other patrons, thank God another agent to assist me after the line agent moved me another customer up due to our flights."

Pros: "Like that fact of none stopped"
Cons: "I didn't like the fact that everything needed a credit card"

Pros: "Everything"

Read more about Alaska Airlines
COVID-19 information

Safety measures for airlines flying from Illinois to Idaho

Airlines flying from Illinois to Idaho 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 Illinois to Idaho

Mandatory masks

Masks required on board, masks provided on flights from Illinois to Idaho

Social distancing seating

Middle seats unavailable to book on flights from Illinois to Idaho

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Illinois to Idaho

Book cheap flights from Illinois to Idaho

Recent round-trip flight deals

9/15
Wed
1 stop
Multiple Airlines
15h 48m
ORD - BOI
9/19
Sun
1 stop
Multiple Airlines
18h 19m
BOI - ORD
7/18
Sun
1 stop
Frontier
23h 25m
STL - GEG
7/26
Mon
1 stop
Frontier
11h 23m
GEG - STL
9/15
Wed
1 stop
Multiple Airlines
15h 48m
ORD - BOI
9/20
Mon
1 stop
Multiple Airlines
8h 04m
BOI - ORD
11/3
Wed
nonstop
Multiple Airlines
3h 58m
ORD - BOI
11/6
Sat
nonstop
Multiple Airlines
3h 33m
BOI - ORD
8/19
Thu
1 stop
Frontier
25h 02m
STL - GEG
8/23
Mon
1 stop
Frontier
11h 48m
GEG - STL
7/4
Sun
1 stop
Multiple Airlines
8h 49m
STL - BOI
7/6
Tue
1 stop
Multiple Airlines
17h 34m
BOI - STL
7/3
Sat
2 stops
Multiple Airlines
27h 56m
STL - BOI
7/6
Tue
1 stop
Multiple Airlines
22h 55m
BOI - STL
10/2
Sat
nonstop
United Airlines
4h 16m
ORD - BOI
10/9
Sat
nonstop
United Airlines
3h 24m
BOI - ORD
8/12
Thu
1 stop
Frontier
5h 59m
STL - BOI
8/15
Sun
1 stop
Frontier
19h 05m
BOI - STL
10/2
Sat
1 stop
Alaska Airlines
6h 20m
ORD - BOI
10/9
Sat
nonstop
Alaska Airlines
3h 25m
BOI - ORD
7/26
Mon
1 stop
American Airlines
20h 07m
STL - BOI
7/30
Fri
1 stop
American Airlines
13h 51m
BOI - STL
10/2
Sat
1 stop
Delta
7h 56m
ORD - BOI
10/9
Sat
1 stop
Delta
8h 04m
BOI - ORD
8/3
Tue
1 stop
American Airlines
21h 03m
ORD - GEG
8/16
Mon
nonstop
American Airlines
3h 55m
GEG - ORD
10/27
Wed
nonstop
United Airlines
4h 16m
ORD - BOI
10/31
Sun
nonstop
United Airlines
3h 33m
BOI - ORD
10/27
Wed
1 stop
Alaska Airlines
8h 23m
ORD - BOI
10/31
Sun
1 stop
Alaska Airlines
20h 04m
BOI - ORD
10/27
Wed
1 stop
Alaska Airlines
7h 48m
ORD - BOI
10/31
Sun
1 stop
Alaska Airlines
10h 49m
BOI - ORD
10/7
Thu
1 stop
Delta
9h 50m
ORD - GEG
10/12
Tue
1 stop
Delta
8h 46m
GEG - ORD
8/24
Tue
1 stop
Delta
9h 36m
ORD - BOI
8/28
Sat
1 stop
Delta
9h 16m
BOI - ORD
8/15
Sun
nonstop
United Airlines
4h 07m
ORD - GEG
8/25
Wed
nonstop
United Airlines
3h 35m
GEG - ORD
8/5
Thu
1 stop
American Airlines
21h 03m
ORD - GEG
8/17
Tue
1 stop
American Airlines
14h 06m
GEG - ORD
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Recent one-way flight deals

8/1
Sun
1 stop
Multiple Airlines
26h 57m
STL - IDA
9/15
Wed
2 stops
Multiple Airlines
21h 55m
ORD - GEG
7/1
Thu
1 stop
Multiple Airlines
22h 20m
ORD - GEG
9/16
Thu
1 stop
Frontier
18h 26m
ORD - GEG
8/12
Thu
1 stop
Frontier
5h 59m
STL - BOI
8/4
Wed
1 stop
Multiple Airlines
14h 03m
ORD - GEG
9/15
Wed
1 stop
Multiple Airlines
19h 45m
ORD - GEG
8/25
Wed
1 stop
Multiple Airlines
15h 08m
ORD - GEG
6/30
Wed
2 stops
Frontier
21h 22m
STL - BOI
10/2
Sat
nonstop
American Airlines
3h 49m
ORD - BOI
8/25
Wed
nonstop
United Airlines
4h 07m
ORD - GEG
10/2
Sat
1 stop
Delta
8h 31m
MDW - BOI
10/2
Sat
1 stop
Delta
7h 56m
ORD - BOI
7/20
Tue
1 stop
Delta
5h 55m
STL - BOI
8/30
Mon
1 stop
Frontier
27h 35m
ORD - GEG
8/17
Tue
nonstop
American Airlines
3h 50m
ORD - BOI
9/22
Wed
1 stop
American Airlines
6h 49m
STL - IDA
8/29
Sun
nonstop
United Airlines
4h 07m
ORD - GEG
8/13
Fri
1 stop
Alaska Airlines
9h 18m
STL - BOI
7/29
Thu
3 stops
Allegiant Air
22h 27m
MDW - IDA
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