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$29 Find cheap flights from North America to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from North America to Illinois departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/12
Fri 7/19

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Low season

January

High season

June

Cheapest flight

$29
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from New York LaGuardia Airport to Chicago O'Hare Airport

FAQs for booking flights from North America to Illinois

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

    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 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from North America 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 North America to Illinois?

    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 to Illinois with an airline and back to North America with another airline.

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

    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 to Illinois from North America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from North America to Illinois

Need help choosing which airline to fly with from North America to Illinois? 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.
7.6
JetBlueOverall score based on 4265 reviews
7.8Comfort
7.8Boarding
8.3Crew
7.1Food
7.5Entertainment
Airline reviews

They put me on a chair in between two men, one overweight who was almost falling on top of me, and the other was even uncomfortable because I was half falling because of what the other was pushing me. I stayed with. my feet were swollen from fluid retention and from being unable to accommodate myself. it was very uncomfortable. I asked for help but they told me that the flight was full and they couldn't help me. I got off the plane almost unable to walk due to the inflammation. and then at FLL airport I asked for help because I couldn't go to my next flight, which was a connection.

2.0 Mediocrelidia, Jun 2024LAX - FLL
Read more about JetBlue reviews

They put me on a chair in between two men, one overweight who was almost falling on top of me, and the other was even uncomfortable because I was half falling because of what the other was pushing me. I stayed with. my feet were swollen from fluid retention and from being unable to accommodate myself. it was very uncomfortable. I asked for help but they told me that the flight was full and they couldn't help me. I got off the plane almost unable to walk due to the inflammation. and then at FLL airport I asked for help because I couldn't go to my next flight, which was a connection.

The walk from baggage claim to the taxi is very difficult for older people I will never fly into JFK again. It is physically challenging

Overall fine but both ways for this trip was delayed.

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

The flight was excellent. The crew was welcoming and attentive.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

Good with British Airways - terrible with American Airlines! Stood at gate for “mechanical problem” - plane delayed. Had to check my personal belonging with 5 empty bins available in plane, desk staff rude!!! Toilet not working- asked “to use working toilet sparingly - it may overflow in cabin!”

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Flight was delayed...not horribly late. Just before push back engine shut down for a quick replacement item that took about five minutes. After that, everything was smooth and the pilot was able to make up time in the air so that our arrival time was not too far off the original anticipated arrival time.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

When we arrived we lasted 48 minutes to be able to get off the plane without air and the plane turned off more than half of the passengers because after they started to leave they realized that the bridge was defective

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

Book cheap flights from North America to Illinois

Recent round-trip flight deals

8/27Tue
nonstopSpirit Airlines
2h 53mBOS-ORD
9/10Tue
nonstopSpirit Airlines
2h 28mORD-BOS
$40
8/27Tue
nonstopSpirit Airlines
2h 53mBOS-ORD
9/10Tue
nonstopSpirit Airlines
2h 28mORD-BOS
$41
9/10Tue
nonstopFrontier
2h 41mDFW-ORD
9/14Sat
nonstopFrontier
2h 37mORD-DFW
$48
9/10Tue
nonstopFrontier
2h 41mDFW-ORD
9/14Sat
nonstopFrontier
2h 37mORD-DFW
$50
8/17Sat
nonstopJetBlue
2h 45mJFK-ORD
8/21Wed
nonstopJetBlue
2h 25mORD-JFK
$101
10/23Wed
nonstopAmerican Airlines
2h 51mJFK-ORD
10/26Sat
nonstopAmerican Airlines
2h 33mORD-JFK
$102
8/20Tue
1 stopUnited Airlines
9h 45mSEA-ORD
8/25Sun
nonstopUnited Airlines
4h 33mORD-SEA
$102
9/2Mon
nonstopJetBlue
2h 54mBOS-ORD
9/11Wed
nonstopJetBlue
2h 31mORD-BOS
$111
8/29Thu
nonstopUnited Airlines
2h 10mDCA-ORD
8/31Sat
nonstopUnited Airlines
1h 58mORD-DCA
$115
8/28Wed
nonstopAmerican Airlines
2h 51mJFK-ORD
9/4Wed
nonstopAmerican Airlines
2h 16mORD-JFK
$132

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Recent one-way flight deals

9/11Wed
nonstopSpirit Airlines
2h 39mLGA-ORD
$29
7/23Tue
nonstopSpirit Airlines
2h 29mDFW-ORD
$29
7/2Tue
nonstopFrontier
2h 23mDFW-ORD
$31
8/15Thu
nonstopFrontier
2h 41mDFW-ORD
$35
8/19Mon
nonstopJetBlue
2h 45mJFK-ORD
$50
8/6Tue
nonstopJetBlue
2h 45mJFK-ORD
$51
8/17Sat
nonstopAmerican Airlines
2h 39mLGA-ORD
$51
9/11Wed
1 stopUnited Airlines
9h 45mSEA-ORD
$54
8/16Fri
nonstopAmerican Airlines
2h 56mBOS-ORD
$57
8/7Wed
nonstopUnited Airlines
2h 50mBOS-ORD
$63

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Last minute flights from North America to Illinois

Last minute flight, train and bus deals

6/17Mon
nonstopSpirit Airlines
2h 54mBOS-ORD
6/18Tue
nonstopSpirit Airlines
2h 28mORD-BOS
$88
6/17Mon
nonstopSpirit Airlines
2h 29mDFW-ORD
6/18Tue
nonstopSpirit Airlines
2h 32mORD-DFW
$99
6/14Fri
multi-stopFrontier
18h 50mDFW-ORD
6/18Tue
nonstopFrontier
2h 29mORD-DFW
$133
6/14Fri
multi-stopFrontier
18h 50mDFW-ORD
6/17Mon
multi-stopFrontier
4h 51mORD-DFW
$143
6/17Mon
nonstopAmerican Airlines
2h 34mEWR-ORD
6/22Sat
multi-stopAmerican Airlines
4h 56mORD-EWR
$252
6/17Mon
multi-stopJetBlue
5h 36mBOS-ORD
6/27Thu
nonstopJetBlue
2h 26mORD-BOS
$256
6/16Sun
nonstopAmerican Airlines
2h 58mBOS-ORD
6/26Wed
nonstopAmerican Airlines
2h 25mORD-BOS
$257
6/14Fri
nonstopJetBlue
2h 54mBOS-ORD
6/19Wed
nonstopJetBlue
2h 26mORD-BOS
$260
6/17Mon
nonstopUnited Airlines
2h 35mEWR-ORD
6/21Fri
multi-stopUnited Airlines
4h 02mORD-EWR
$287
6/16Sun
multi-stopUnited Airlines
5h 30mBOS-ORD
6/19Wed
multi-stopUnited Airlines
5h 05mORD-BOS
$322

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