$45 Find Cheap Flights from Oklahoma to Illinois

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Low seasonJanuary
High seasonMay
Cheapest flight$45
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Dallas/Fort Worth Airport to Chicago Midway Airport

FAQs for booking flights from Oklahoma to Illinois

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

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

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

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago Midway Airport (MDW), with an average flight price of $220.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Thursday where round-trip tickets can be as cheap as $586. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $868 on average.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $561 on average. Morning departures are around 19% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,043.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Oklahoma found in the last 72 hours was to Chicago Midway Airport, at $262 round-trip. The most popular route is Oklahoma City (OKC) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $262.

  • What is the cheapest month to fly from Oklahoma to Illinois?

    The cheapest month for flights from Oklahoma to Illinois is February, when tickets cost $288 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $404 and $394 respectively.

  • How far in advance should I book a flight from Oklahoma to Illinois?

    To get a below average price on the flight from Oklahoma to Illinois, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

  • How long is the flight to Illinois?

    An average nonstop flight from Oklahoma to Illinois takes 4h 48m, covering a distance of 592 miles. The shortest route is Tulsa (TUL) to St. Louis (STL) with an average flight time of 1h 15m.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (94% of total searches to Illinois). The next most popular destinations are St. Louis (5%) and Peoria (0%). Searches for flights to Moline (0%), to Evansville (0%) and to Bloomington (0%) are also popular.

Top 4 airlines serving from Oklahoma to Illinois

Need help choosing which airline to fly with from Oklahoma 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.
8.0
SouthwestOverall score based on 4293 reviews
8.6Crew
8.0Comfort
7.1Food
7.6Entertainment
8.2Boarding
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

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

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

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.

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Book cheap flights from Oklahoma to Illinois

Recent round-trip flight deals

7/11Fri
nonstopFrontier
2h 43mDFW-ORD
7/14Mon
nonstopFrontier
2h 38mORD-DFW
$94
6/17Tue
nonstopFrontier
2h 27mDFW-MDW
6/21Sat
nonstopFrontier
2h 29mMDW-DFW
$94
7/9Wed
nonstop
2h 30mDFW-ORD
7/14Mon
nonstop
2h 38mORD-DFW
$114
6/7Sat
nonstop
2h 37mDFW-ORD
6/9Mon
nonstop
2h 42mORD-DFW
$118
5/21Wed
nonstopUnited Airlines
2h 33mDFW-ORD
5/26Mon
nonstopUnited Airlines
2h 39mORD-DFW
$173
5/24Sat
nonstopAmerican Airlines
2h 31mDFW-ORD
5/27Tue
nonstopAmerican Airlines
2h 25mORD-DFW
$189
7/17Thu
nonstopUnited Airlines
2h 38mDFW-ORD
7/27Sun
nonstopUnited Airlines
2h 39mORD-DFW
$199
5/17Sat
nonstopAmerican Airlines
2h 26mDFW-ORD
5/21Wed
nonstopAmerican Airlines
2h 25mORD-DFW
$202
8/16Sat
nonstopSouthwest
1h 55mOKC-MDW
8/20Wed
nonstopSouthwest
2h 00mMDW-OKC
$269
8/16Sat
nonstopSouthwest
1h 55mOKC-MDW
8/20Wed
1 stopSouthwest
9h 05mMDW-OKC
$279

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Recent one-way flight deals

7/24Thu
nonstopFrontier
2h 23mDFW-MDW
$45
7/19Sat
nonstopFrontier
2h 44mDFW-ORD
$47
6/2Mon
nonstopSpirit Airlines
2h 33mDFW-ORD
$62
5/14Wed
1 stopSpirit Airlines
13h 27mDFW-ORD
$65
5/21Wed
nonstopAmerican Airlines
2h 25mDFW-ORD
$74
5/21Wed
nonstopAmerican Airlines
2h 25mDFW-ORD
$75
6/4Wed
nonstopUnited Airlines
2h 36mDFW-ORD
$99
7/31Thu
nonstopUnited Airlines
2h 38mDFW-ORD
$100
6/24Tue
nonstopSouthwest
1h 55mOKC-MDW
$128
9/2Tue
2 stopsSouthwest
8h 00mTUL-ORD
$131

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Last minute flights from Oklahoma to Illinois

Last minute flight, train and bus deals

5/6Tue
multi-stopFrontier
12h 12mDFW-STL
5/16Fri
multi-stopFrontier
7h 52mSTL-DFW
$178
5/2Fri
multi-stopFrontier
21h 55mDFW-ORD
5/5Mon
multi-stopFrontier
10h 25mORD-DFW
$181
5/2Fri
multi-stop
11h 05mDFW-ORD
6/5Thu
multi-stop
7h 42mORD-DFW
$219
5/5Mon
multi-stop
8h 29mDFW-ORD
5/12Mon
nonstop
2h 42mORD-DFW
$224
5/1Thu
nonstopAmerican Airlines
1h 52mXNA-ORD
5/3Sat
nonstopAmerican Airlines
1h 57mORD-XNA
$329
5/1Thu
nonstopAmerican Airlines
1h 52mXNA-ORD
5/3Sat
multi-stopAmerican Airlines
6h 39mORD-XNA
$339
5/1Thu
nonstopUnited Airlines
1h 57mXNA-ORD
5/5Mon
nonstopUnited Airlines
2h 10mORD-XNA
$347
5/3Sat
nonstopUnited Airlines
2h 00mXNA-ORD
5/6Tue
nonstopUnited Airlines
2h 04mORD-XNA
$370
5/6Tue
multi-stopSouthwest
7h 20mTUL-ORD
5/7Wed
multi-stopSouthwest
4h 15mORD-TUL
$642
5/6Tue
multi-stopSouthwest
8h 45mTUL-ORD
5/7Wed
multi-stopSouthwest
4h 15mORD-TUL
$648

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Everything you need to know for your flight to Illinois

Cabin class types available on flights to Oklahoma

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

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