$36 Find Cheap Flights from Illinois to Oklahoma - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to Oklahoma departing on 8/18. 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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Good to know

Low season

January

Cheapest flight

$36
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from St. Louis to Dallas

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 United Airlines (56 flights per week), Air New Zealand (55 flights per week), and American Airlines (50 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 54% 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 $251.

  • What is the cheapest day to fly to Oklahoma?

    Based on KAYAK data, the cheapest day to fly to Oklahoma is Wednesday where round-trip tickets can be as cheap as $344. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $560 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 afternoon, when round-trip flights cost $374 on average. Morning departures are around 5% cheaper than evening flights, on average. The most expensive time of day to fly to Oklahoma is generally at night, which is peak travel time and where the average cost of a ticket is $517.

  • What is the cheapest flight to Oklahoma?

    The cheapest ticket to Oklahoma from Illinois found in the last 5 days was to Tulsa, at $177 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 5 days was $237.

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

    The cheapest month for flights from Illinois to Oklahoma is January, when tickets cost $175 (return) on average. On the other hand, the most expensive months are February and March, when the average cost of round-trip tickets is $402 and $344 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 38% 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 481 direct flights each week.

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

    There are around 69 direct flights from within Illinois to Oklahoma every day. Most flights (32%) depart in the afternoon.

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

    Each week there are around 481 direct flights from within Illinois to Oklahoma. The most common day for departures is Tuesday, 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 19m, covering a distance of 601 miles. The shortest route is St. Louis (STL) to Dallas/Fort Worth Airport (DFW) with an average flight time of 1h 35m.

  • 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 481 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 (90% of total searches to Oklahoma). The next most popular destinations are Oklahoma City (5%) and Fayetteville (3%). Searches for flights to Tulsa (2%), to Lawton (0%) and to Stillwater (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 4226 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
Airline reviews

Overall good, just screaming kids in the area the whole flight.

8.0 ExcellentAnonymous, Jul 2026
MDW - MHT
Read more Southwest reviews

Overall good, just screaming kids in the area the whole flight.

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The new boarding process was easy and straightforward. Very pleasant.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

The SFO lounge closes at 12 midnight. My flight took off at 2AM

It was extremely hot in the cabin the entire flight, vent air was worn

Have not had a flight out or returning to Norfolk that has not required maintenance, and a gate delay. Properly staff the crew so maintenance can be performed without last minute emergencies on each flight and there is enough staff to have gates prepared for inbound flights. Staff to ensure the safety and on time service vs. profit.

My original flight was cancelled and that affected my trip and my plans and I got no compensation and customer service was hard to reach as well

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Great experience. Boarding was fast, staff were very nice and funny, everything at the seat worked well.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The baggage handlers broke the handle on my bag that they put under the plane that I checked on the jetway. They traded it out for a less quality bag in Tulsa. But, they said they would try to fix it. Bologna! There was no fixing that bag handle. Someone didn’t care how they treated the bag.

I had my flight of Cedar Rapids. THen Chicago to Boston. Flight out of Cedar rapids was delayed by 12 hrs. Had to drive to Chicago to catch my flight

The boarding and fllight were good. The reason for the ok rating was the long walk to get to the transport to finally get to the gate.

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

I appreciate that I finally got the seat I paid extra for this time. Thank you

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

Flight from Dallas to OKC was good, but my trip was interrupted due to a delayed flight from Austin to DFW, which happens all the time. I frequently miss my connection from DFW and American can never seem to make this work!

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

No choice of meal in first class. Was the worst meal I’ve ever had in first class.

Do not rebook people without asking .. threw the whole return trip off

First off, I never complained so it is not the crews fault. The lady to my left did not respect my seat whatsoever. She was too big to lower the armrest and basically sat on me the entire flight. She was against the window. I was in a middle seat. For future reference, American, please make sure the armrest will lower or get someone a larger seat/2 seats.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

Better than expected. Staff were friendly and nice on both flights.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

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

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

I didn’t have enough time to catch my connecting flight and had to use a different Airline. I will be requesting a refund.

I brought a ticket and car rental through Travelocity. There was no where to add a KTN. So I thought i’d add it by looking up ticket on frontier website. I tried 3 times with the frontier chat bot to add my KTN it never updated my boarding pass. So then I tried showing up early to do it in person at the airport. The first employee update my ktn in the system and gave me a new boarding pass. I was sent back by tsa to join regular line. Then I was told to add my Ktn. It would cost me $25 extra. Given the length of the cue I did pay. Congratulations! BUT I will NEVER fly frontier again. Plus the plane was very old. It had actual ashtrays and old looking tray backs. Worst travel experience ever. Im warning my friends and family not to use frontier ever.

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

Was just ok with over selling I guess. A lot of people in a short space and when we finally arrive i20 minutes, waiting to get out from the plain because we were waiting authorization for out boarding? Something like that.

They changed my flight and did not want to accommodate me or try to help me in any way. They do not care about their customers.

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.