$56 Find Cheap Flights from Oklahoma City 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 Oklahoma City to Illinois departing on 4/2. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oklahoma City to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oklahoma City to Illinois, as well as popular online travel agencies
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Best Illinois Flight Deals from Oklahoma City

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop$110
Moline
Moline1 stop$259
St. Louis
St. Louis1 stop$159

Good to know

Low season

January

High season

July

Cheapest flight

$56
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Oklahoma City to Chicago Midway Airport

FAQs - booking Illinois flights

  • How long is the flight to Illinois from Oklahoma City?

    Flights to Chicago2h 20m
  • What is the cheapest flight to Illinois from Oklahoma City?

    The cheapest ticket to Illinois from Oklahoma City found in the last 72 hours was $56 one-way, and $128 round-trip. The most popular route is from Oklahoma City Will Rogers World to Chicago O'Hare Intl, and the cheapest round-trip airline ticket found on this route in the last 72 hours was $57.

  • Which airlines fly to Illinois?

    Air New Zealand flies most frequently to Chicago O'Hare Intl from Oklahoma City Will Rogers World. In general, United Airlines, American Airlines and Alaska Airlines fly the most to Illinois.

  • How does KAYAK find such low prices on flights from Oklahoma City 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 Oklahoma City to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oklahoma City to Illinois 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 Oklahoma City 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 from Oklahoma City to Illinois 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 Oklahoma City 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 from Oklahoma City to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Oklahoma City to the following destinations at these prices or less: Chicago $203 one-way - $386 round-trip; Chicago $293 one-way - $537 round-trip; St. Louis $193 one-way - $386 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly from Oklahoma City is April.
  • Morning departure is around 9% cheaper than an evening flight, on average*.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 4 airlines serving from Oklahoma City to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Oklahoma City to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Oklahoma City 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.
8.1
SouthwestOverall score based on 4411 reviews
8.7Crew
8.2Boarding
7.1Food
8.1Comfort
7.6Entertainment
Airline reviews

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

10.0 ExcellentAnonymous, Jan 2025ATL - LGA
Read more Southwest reviews

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

Wi Fi was horrible kept cutting out the whole time and too expensive

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Boarding was a little late, but made up for it. It was quick to taxi to the runway, since it's a smallish airport.

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

It was 2 hours 45 minutes late, for no apparently clear reason.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

They canceled our flight and left us stranded to figure it out

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

Everything was on time, we arrived early, everything worked well.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

Delayed due to no crew. On a major holiday travel day.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight from Buffalo to Chicago was on an older and smaller plane. Seating was tight. Looking closely at the interior of the aircraft there were definitely signs of aging and wear.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

The check in process was a mess for no reason. I spent an hour waiting in line trying to get them to print my boarding pass and as a result I missed my flight.

The airline used deceptive tactics to charge us more for our trip. Search Frontier Class Action Lawsuit to find out more or read the hundreds of reviews that have nearly identical stories.. don't fly this airline.. you've been warned.

Check in at Philadelphia international was absolutely terrible! I fly 2 to 3 times a month and avoid frontier at all cost and will never fly Frontier again! The night before travel, I tried checking in however, the app was giving me an error, so I went to the desktop, which instructed you that you need to use the app. The next day I presented at the check-in gate after trying at least a half dozen times prior to getting into the airport and continuing to getting the error in the app. I actually had rebooted my phone numerous times and reinstall the app just in case. My phone is only one generation older than the current model. It has no problems completing a frontier flight purchase or any other app issues. There was only three frontier employees working at check-in and a huge line while I was in line I continued to try and check in via the app. As I approach the desk, I was dreading dealing with the agent. He was extremely unprofessional, anti-semantic & very ignorant, and mean to the people in front of me, as well as the people who ended up being behind me. He literally told people “Man I don’t care bout y’all” in his native dialect! Maintaining my composure I approached and explained the situation. To which he replied, you’re gonna have to pay then! I don’t understand. It’s an issue with their app not allowing me to check in! Not my issue! He told me if I pay cash it would be $15, $25 if I pay credit card. I don’t understand a $10 difference for paying with a credit card? I am completely cashless so I continued to try using the app to avoid the $25 fee, Which I still don’t believe that I should be responsible for since it was Frontier’s technical issue!!! I continued to check in via the app a couple more times after he verified I was doing everything right he proceeded to continue to belittle the people behind me. Yelling at them saying I don’t care about you people! I cannot believe that this is the way that businesses would treat its customers! Unfortunately, the black mail with dreadlocks did not have a name tag all he had was a frontier sweater on! For the $25 fee that I ended up getting charged on my credit card. I should’ve just booked originally with Spirit or any other carrier! I have no problem paying fees that I should be responsible for, but when it’s due to a technical failure of a company, the customer should not be responsible for it! I cannot believe that it’s not frontier going out of business!

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

Very easy with the app to board and staff skills

After waiting several minutes to be acknowledged by 3 employees on their phones, was told we had missed our flight because the doors were closed at that literal moment. Had they given any actual service or help while we were standing there we would have been on with time to spare. More than 10 people were turned away in this fashion claiming there was no way they could let us on the plane, even though it was still sitting connected to the terminal. After the desk agents let us know they didn't care about the situation we were forced to pay more than twice the price of our original tickets as no credits were given for the price of the "missed" flight. And the icing on the cake was after being treated poorly, fleeced for another few hundred dollars for new tickets? We waited on the next plane for 25 minutes passed the "doors closed" time, letting almost an extra dozen passengers on board. You're company has lazy, disinterested employees and your lack of any real help will ensure this was the first and last time we fly Frontier. Awful.

My experience with the phoenix airport was terrible, the personnel lay the ticket counter charged me for a carry on that fit in the carry on size box, and the two women I spoke with were terribly rude and not willing to help.,,, there was one lady “candy” on the flight crew that was amazing and is the only reason I stayed on the flight at all, because the other stewards helping people to get seated on the plane were terrible

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

The seats were extremely hard and uncomfortable, even for a budget airline.

Book cheap flights from Oklahoma City to Illinois

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Oklahoma City to Illinois found on KAYAK in the last 72 hours.
3/19Mi
1 stopFrontier
27h 56mOKC-ORD
3/26Mi
1 stopFrontier
12h 42mORD-OKC
$110
4/5Sa
1 stopFrontier
28h 07mOKC-MDW
4/12Sa
1 stopFrontier
12h 39mMDW-OKC
$128
5/1Do
1 stopAmerican Airlines
4h 27mOKC-STL
5/6Di
1 stopAmerican Airlines
5h 10mSTL-OKC
$222
7/3Do
1 stopSouthwest
4h 20mOKC-STL
7/11Fr
1 stopSouthwest
5h 30mSTL-OKC
$247
3/5Mi
2 stopsAmerican Airlines
7h 56mOKC-STL
3/6Do
1 stopAmerican Airlines
4h 21mSTL-OKC
$252
4/26Sa
1 stopSouthwest
4h 10mOKC-STL
4/28Mo
nonstopSouthwest
1h 30mSTL-OKC
$255
3/6Do
1 stopDelta
4h 58mOKC-MLI
3/10Mo
1 stopDelta
6h 54mMLI-OKC
$259
3/10Mo
1 stopDelta
6h 06mOKC-STL
3/14Fr
1 stopDelta
4h 52mSTL-OKC
$280
4/3Do
nonstopUnited Airlines
2h 18mOKC-ORD
4/7Mo
1 stopUnited Airlines
7h 10mORD-OKC
$297
3/6Do
2 stopsUnited Airlines
9h 09mOKC-MLI
3/10Mo
1 stopUnited Airlines
6h 37mMLI-OKC
$306

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Oklahoma City to Illinois found on KAYAK in the last 72 hours.
4/2Mi
1 stopFrontier
11h 46mOKC-MDW
$56
3/22Sa
1 stopFrontier
27h 50mOKC-MDW
$57
5/20Di
1 stopAmerican Airlines
5h 59mOKC-STL
$99
3/18Di
1 stopDelta
5h 41mOKC-STL
$124
3/20Do
nonstopSouthwest
1h 25mOKC-STL
$132
4/3Do
nonstopUnited Airlines
2h 18mOKC-ORD
$144
4/1Di
nonstopSouthwest
1h 55mOKC-MDW
$144
3/20Do
1 stopUnited Airlines
4h 51mOKC-STL
$154
4/22Di
1 stopDelta
7h 30mOKC-ORD
$154
5/21Mi
1 stopAmerican Airlines
4h 23mOKC-STL
$173

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Last minute flights from Oklahoma City to Illinois

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Oklahoma City to Illinois that are departing in the next 10 days.
2/21Fr
multi-stopFrontier
27h 48mOKC-MDW
2/25Di
multi-stopFrontier
12h 24mMDW-OKC
$325
2/21Fr
multi-stopFrontier
20h 56mOKC-ORD
2/25Di
multi-stopFrontier
12h 39mORD-OKC
$325
2/21Fr
multi-stopAmerican Airlines
4h 25mOKC-STL
2/24Mo
multi-stopAmerican Airlines
4h 43mSTL-OKC
$449
2/23So
multi-stopDelta
5h 52mOKC-STL
2/28Fr
multi-stopDelta
4h 44mSTL-OKC
$562
2/23So
multi-stopUnited Airlines
8h 34mOKC-STL
2/28Fr
multi-stopUnited Airlines
4h 46mSTL-OKC
$567
2/23So
multi-stopUnited Airlines
8h 34mOKC-STL
2/28Fr
multi-stopUnited Airlines
10h 37mSTL-OKC
$673
2/21Fr
nonstopAmerican Airlines
2h 08mOKC-ORD
2/21Fr
nonstopAmerican Airlines
2h 18mORD-OKC
$780
2/21Fr
nonstopSouthwest
1h 55mOKC-MDW
2/23So
nonstopSouthwest
2h 20mMDW-OKC
$785
2/21Fr
nonstopSouthwest
1h 55mOKC-MDW
2/23So
multi-stopSouthwest
6h 20mMDW-OKC
$795
2/25Di
multi-stopDelta
4h 53mOKC-MDW
2/28Fr
multi-stopDelta
6h 46mMDW-OKC
$1,083

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Everything you need to know for your flight from Oklahoma City to Illinois

Information on your arrival and departure airports

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