$26 Find Cheap Flights from Illinois to Oklahoma

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Good to know

Low seasonJanuary
Cheapest flight$26
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from St. Louis to Dallas/Fort Worth Airport

FAQs for booking flights from Illinois to Oklahoma

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

    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 Oklahoma.

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

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

    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 Oklahoma 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 Oklahoma?

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

  • Which airlines fly most frequently to Oklahoma?

    Illinois and Oklahoma are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (60 flights per week), Air New Zealand (54 flights per week), and United Airlines (54 flights per week).

  • How many airports are there in Oklahoma?

    There are 4 airports in Oklahoma. The busiest airport is Oklahoma Will Rogers Airport (OKC), with 56% of all flights arriving there.

  • Which is the cheapest airport to fly into in Oklahoma?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Oklahoma is Tulsa Airport (TUL), with an average flight price of $150.

  • What is the cheapest day to fly to Oklahoma?

    Based on KAYAK data, the cheapest day to fly to Oklahoma is Saturday where round-trip tickets can be as cheap as $346. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $412 on average.

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

    The cheapest time of day to fly to Oklahoma is generally in the morning, when round-trip flights cost $365 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to Oklahoma is generally in the evening, which is peak travel time and where the average cost of a ticket is $433.

  • What is the cheapest flight to Oklahoma?

    The cheapest ticket to Oklahoma from Illinois found in the last 72 hours was to Tulsa, at $122 round-trip. The most popular route is Chicago Midway Airport (MDW) to Oklahoma City (OKC) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $160.

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

    The cheapest month for flights from Illinois to Oklahoma is September, when tickets cost $276 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $397 and $393 respectively.

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

    To get a below average price on the flight from Illinois to Oklahoma, you should book around 5 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

  • How many cities have direct flights to Oklahoma?

    From Illinois, there are direct flights to Oklahoma from 1 city. This city is Chicago and there are 441 direct flights each week.

  • How many direct flights to Oklahoma are there each day?

    There are around 63 direct flights from within Illinois to Oklahoma every day. Most flights (40%) depart in the evening.

  • How many direct flights to Oklahoma are there each week?

    Each week there are around 441 direct flights from within Illinois to Oklahoma. The most common day for departures is Friday, with 15% of flights taking off on this day.

  • How long is the flight to Oklahoma?

    An average nonstop flight from Illinois to Oklahoma takes 4h 03m, covering a distance of 601 miles. The shortest route is St. Louis (STL) to Tulsa (TUL) with an average flight time of 1h 15m.

  • How many long-haul flights are there to Oklahoma each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Oklahoma. Instead, there are 441 short-haul flights (up to 3 hour flight duration), with the most arriving from Chicago.

  • What are the most popular destinations in Oklahoma?

    Based on KAYAK flight searches, the most popular destination is Dallas (93% of total searches to Oklahoma). The next most popular destinations are Oklahoma City (3%) and Fayetteville (2%). Searches for flights to Tulsa (1%), to Stillwater (0%) and to Lawton (0%) are also popular.

Reviews of the top 4 airlines serving from Illinois to Oklahoma

 
Need help choosing which airline to fly with from Illinois to Oklahoma? 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 4248 reviews
8.1Boarding
8.6Crew
7.0Food
7.5Entertainment
8.0Comfort
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

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.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

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.

This was a pleasant, short flight and the crew was friendly.

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.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

The experience was good. No frills but I got there safe and sound and on time.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

Everything you need to know for your flight to Oklahoma

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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