$38 Find Cheap Flights from Illinois to the United States

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Low seasonJanuary
High seasonDecember
Cheapest flight$38
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Chicago O'Hare Airport to Dallas/Fort Worth Airport

Flights from Illinois to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Illinois to the United States 
RogerFlew with Japan AirlinesORD-PITJun 2025
Make sure when you go from one airline to another that your bag is marked properly so they can get it on the right damn airplane. I did that and it still didn’t make it.
Verified travelerFlew with United AirlinesORD-LASMar 2025
If you can select your seats in advance please do
AndreaFlew with United AirlinesORD-ATLMay 2025
Ask for stewards to assist and provide amenities or you won’t get them.
Verified travelerFlew with American AirlinesORD-TPADec 2024
I recommend having movies and songs downloaded on your device.
Dr. JosephFlew with American AirlinesORD-DFWJan 2025
Be very vigilant about the weather both in Chicago and in Dallas. Adverse weather in either area can affect the trip.
JanieFlew with SWISSORD-PHXFeb 2025
I think you should prebook food or bring your own food.
Verified travelerFlew with Spirit AirlinesORD-LASSep 2024
Make sure you get your seats booked at time of booking or at the least when you check in and make sure you check in at the earliest to have preferred seating.
MikeFlew with American AirlinesORD-LAXSep 2024
Arrive early, grab a bottle of soda before getting on the plane and open it in the terminal. If you wait until flying the pressure will decarbonize the drink.
Verified travelerFlew with Alaska AirlinesORD-PDXSep 2024
Not many amenities at the terminal. I would suggest grabbing anything that catches your eye before you get all the way down. There weren't a lot of Alaska flights out of Chicago, and we were at the extreme end of the terminal.
ZachFlew with American AirlinesPIA-CLTSep 2024
Charlotte is so crowded partially because of the tight banks American operates plus the construction and just the overall small footprint given the larger aircraft. Bring patience while transiting clt
Verified travelerFlew with British AirwaysORD-CIDSep 2024
Easy hop but we sure went to the most remote o’hare gate I think, prepare to walk a mile!
mauriceFlew with IberiaORD-JFKSep 2024
You should arrive early, take a lighht snack and be prepared for delays.
HeatherFlew with LufthansaORD-MKEAug 2024
Make sure there's enough time between connections to go through customs and recheck your luggage. They will not let you proceed so you can't even try to run and catch the flight if you want to.
AlexanderFlew with Spirit AirlinesORD-LGAMay 2024
Know your connection options — specially when LaGuardia Airport (LGA) only has buses going to/from the airport to the rest of the city. Luckily, the one to the subway station (Q70) is free-of-charge to ride on!
Verified travelerFlew with United AirlinesORD-PHXApr 2024
Use the find my gate feature on the flights phone app if available as the airport is a bit confusing
AyannaFlew with Spirit AirlinesORD-TPAMay 2024
Fly out of Midway airport instead of O'Hare because its smaller and easier to manage.
PaulFlew with Alaska AirlinesORD-SEAApr 2024
The flight is long, at over four hours. I would try to get a window or aisle seat to be more comfortable. I would check with other airlines that allow you to choose your seat even if you are in the economy section. I would bring your own food on the plane as the service was sometimes sketchy.
EllenFlew with United AirlinesORD-DSMMay 2024
The flight is short enough that full beverage and snack service is limited or not offered at all. On this flight, we were offered orange juice or water. It makes sense that they can't do the full service, and doesn't bother me, but it's something to be aware of.
Verified travelerFlew with Alaska AirlinesORD-SEAApr 2024
If you miss your flight ask any alaska agent to how and where to rebook the flight.
UzomaFlew with American AirlinesORD-DCAJan 2024
ORD and DCA are nice airports with plenty of space. ORD is always busy so allow ample time to drive there, drop your bag, and go through security if you don't have TSA pre check.
LaurenFlew with Spirit AirlinesORD-MCOFeb 2024
If you can get by with a personal item, spirit has the best prices often at the best times to fly chicago to orlando for a weekend
Dr. JosephFlew with American AirlinesORD-CLTJan 2024
Be prepared to walk long distances in Charlotte. Make sure your layover time is sufficient to transition between arrival and departure gates.

FAQs for booking flights from Illinois to the United States

  • How does KAYAK find such low prices on flights from Illinois to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United States?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is Las Vegas Harry Reid Intl Airport (LAS), with an average flight price of $128.

  • What is the cheapest day to fly to the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Thursday where round-trip tickets can be as cheap as $255. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $375 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $233 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $383.

  • What is the cheapest flight to the United States?

    The cheapest ticket to the United States from Illinois found in the last 72 hours was to Atlanta, at $78 round-trip. The most popular route is Bloomington (BMI) to Atlanta (ATL) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $78.

  • What is the cheapest month to fly from Illinois to the United States?

    The cheapest month for flights from Illinois to the United States is August, when tickets cost $225 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $359 and $347 respectively.

  • How far in advance should I book a flight from Illinois to the United States?

    To get a below average price on the flight from Illinois to the United States, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

  • How long is the flight to the United States?

    An average nonstop flight from Illinois to the United States takes 3h 09m, covering a distance of 1176 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Nashville (BNA) with an average flight time of 1h 29m.

  • What are the most popular destinations in the United States?

    Based on KAYAK flight searches, the most popular destination is New York (21% of total searches to the United States). The next most popular destinations are Seattle (7%) and Dallas (7%). Searches for flights to Las Vegas (6%), to Los Angeles (4%) and to Washington, D.C. (3%) are also popular.

Reviews of the top 4 airlines serving from Illinois to the United States

 
Need help choosing which airline to fly with from Illinois to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8864 reviews
8.1Crew
7.0Entertainment
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

10.0 ExcellentAnita, Jul 2025ORD - CMH
Read more United Airlines reviews

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

Great flight, professional crew, convenient and interesting nonstop routes. Had trouble with getting precheck listed on boarding pass, but found that customer service was remarkably responsive via email — unheard of with other carriers. A great experience overalll.

I felt like a sardine in my seat. We all did. The plane was so small that I hit my head on the roof when I stood up from my seat. The service was good and the crew were nice.

My luggage is missing and contour is doing a terrible service helping finding it. Unbelievable and the worst experience ever. I would love get my money back.

Flight was cancelled, but they got him on an earlier delayed rescheduled one. Arrived Chicago 2 hours later than expected but long layover so it worked.

Crew very helpful, weather made the flight less than optimal.

Flight was fine. I just forgot how smaller planes have more dips and seats in high winds.

It’s the only flight connecting Marion to Chicago, I do appreciate that it was available!

The flight was delayed and then less than 30 mins before boarding they cancelled the flight when clearly they had to have known earlier that they were going to have to cancel. There was only one person there available to talk to and all he could do was tell us to call reservations our self. Due to high call volume I waited 2 hours to even get rebooked on a flight to a different city where I would still have to drive 1 hr to my destination, only option for me. While waiting to talk to reservations people were getting emails with new flight info and the flights were days out and sone even a week out. . I did not get compensated in anyway after having spent all day at the airpot, not even a food voucher. Very disappointed, terrible experience.

Information regarding the delayed flight could have been better, and the Contour airlines app needs some serious updates. But overall, the crew was great and the flight was uneventful.

The boarding procedure is as easy and the crew very friendly.

We had a wonderful flight due to the care of our experienced pilot and copilot and the magnificent air views from our comfortable seats. What excitement to be in such a small plane with such magnificent around us.

Multiple time changes, then we left earlier than we were told.

Communication could be better but the staff and crew were over the top friendly and helpful, The flight itself was smooth.

flight was cancelled literally at 10pm the night before an early morning flight with hardly any time to reschedule. Will never book with kayak again.

My flight was cancelled 12 hours before takeoff. I was not able to reschedule another flight to make connections and had to cancel the entire trip. The ticket that was supposed to replace the cancelled flight had no boarding pass and I was unable to get one at the airport so I was denied access to the rescheduled flight. I was refunded but I missed my daughter's birthday.

I had a family emergency and couldn’t make the flight, and they wouldn’t let me cancel/refund it (a *month* ahead of time), were especially difficult with me on the phone, and wouldn’t let me even so much as reschedule the flight or get credit.

Flight was cancelled, communication was poor and should have canceled flight much earlier.

Flight was cancelled twice. Moved four more times. Probably the least timely and poorly run airline I have ever experienced in my life. I have traveled hundreds of times to dozens of countries and this one takes the cake.

Excellent crew, good flight. Flight was delayed about 1 1/2 hours though.

Pros: "The ground crew and flight crew were great."
Cons: "Would have appreciated easier steps (lower risers) for boarding. Arthritic knee makes it hard for me to manage the high risers between steps. Also having armrests would have made the flight more comfortable."

Book cheap flights from Illinois to the United States

Recent round-trip flight deals

8/12Tue
nonstopSpirit Airlines
2h 09mORD-LGA
8/12Tue
nonstopSpirit Airlines
2h 30mLGA-ORD
$84
9/4Thu
nonstopSpirit Airlines
2h 05mORD-LGA
9/8Mon
nonstopSpirit Airlines
2h 38mLGA-ORD
$87
9/5Fri
nonstopFrontier
2h 55mORD-MCO
9/13Sat
nonstopFrontier
3h 15mMCO-ORD
$98
9/11Thu
nonstopFrontier
2h 55mORD-MCO
9/14Sun
nonstopFrontier
3h 20mMCO-ORD
$99
9/2Tue
nonstopAmerican Airlines
2h 34mORD-BOS
9/3Wed
nonstopAmerican Airlines
2h 54mBOS-ORD
$117
8/5Tue
nonstop
2h 44mORD-MCO
8/9Sat
nonstop
3h 02mMCO-ORD
$120
8/6Wed
nonstop
2h 47mORD-MCO
8/11Mon
nonstop
3h 13mMCO-ORD
$122
9/2Tue
nonstopAmerican Airlines
2h 34mORD-BOS
9/13Sat
nonstopAmerican Airlines
2h 51mBOS-ORD
$132
9/26Fri
nonstopUnited Airlines
2h 30mORD-BOS
9/30Tue
nonstopUnited Airlines
2h 56mBOS-ORD
$137
8/6Wed
nonstopUnited Airlines
2h 30mORD-BOS
8/12Tue
1 stopUnited Airlines
5h 37mBOS-ORD
$143

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nonstopFrontier
2h 48mORD-DFW
$38
7/30Wed
nonstopSpirit Airlines
2h 09mORD-LGA
$42
9/3Wed
nonstopJetBlue
2h 28mORD-BOS
$59
9/9Tue
nonstopJetBlue
2h 28mORD-BOS
$62
7/28Mon
nonstopUnited Airlines
2h 27mORD-BOS
$69
8/15Fri
nonstopAmerican Airlines
2h 32mORD-BOS
$70
9/3Wed
nonstopAmerican Airlines
2h 18mORD-JFK
$70
10/1Wed
nonstopUnited Airlines
2h 22mORD-EWR
$74
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1 stopContour
3h 55mORD-DFW
$81
7/31Thu
1 stopContour
3h 55mORD-DFW
$92

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Last minute flights from Illinois to the United States

Last minute flight, train and bus deals

7/22Tue
nonstopUnited Airlines
2h 27mORD-BOS
7/24Thu
nonstopUnited Airlines
2h 58mBOS-ORD
$137
7/22Tue
nonstopDelta
2h 31mORD-BOS
7/22Tue
nonstopDelta
3h 06mBOS-ORD
$147
7/22Tue
nonstopFrontier
2h 56mORD-MCO
7/29Tue
nonstopFrontier
3h 14mMCO-ORD
$148
7/22Tue
nonstopFrontier
2h 56mORD-MCO
7/28Mon
nonstopFrontier
3h 13mMCO-ORD
$156
7/22Tue
multi-stopSpirit Airlines
8h 21mORD-LGA
7/22Tue
multi-stopSpirit Airlines
14h 00mLGA-ORD
$160
7/22Tue
multi-stopSpirit Airlines
12h 03mORD-BOS
7/23Wed
multi-stopSpirit Airlines
13h 16mBOS-ORD
$160
7/22Tue
nonstopAmerican Airlines
2h 23mORD-BOS
7/28Mon
nonstopAmerican Airlines
2h 58mBOS-ORD
$190
7/22Tue
multi-stop
19h 27mORD-LAX
8/10Sun
nonstop
4h 05mLAX-ORD
$194
7/22Tue
nonstopAmerican Airlines
2h 23mORD-BOS
7/29Tue
multi-stopAmerican Airlines
5h 06mBOS-ORD
$195
7/21Mon
multi-stop
23h 56mORD-LAX
8/2Sat
multi-stop
6h 55mLAX-ORD
$201

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Everything you need to know for your flight to the United States

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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