$51 Find Cheap Flights from Illinois to Oklahoma - Compare and Save

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Cheap Flights from Illinois to Oklahoma

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Dallas
1h 49mNonstop
from $144per person
Oklahoma City
2h 05mNonstop
from $195per person
Tulsa
1h 50mNonstop
from $211per person
Fayetteville
1h 51mNonstop
from $294per person
Stillwater
4h 53m2 stops
from $463per person
Lawton
4h 54m2 stops
from $517per person
Useful Info

Good to know

Low season

January

Cheapest flight

$51
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 4% 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 United Airlines (65 flights per week), American Airlines (60 flights per week), and Air New Zealand (55 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 Oklahoma City Will Rogers World Airport (OKC), with an average flight price of $256.

  • 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 $357. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $548 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 $373 on average. Morning departures are around 7% 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 $514.

  • 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 $249.

  • 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 4 weeks before departure, which saves you about 45% 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 413 direct flights each week.

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

    There are around 59 direct flights from within Illinois to Oklahoma every day. Most flights (34%) depart in the afternoon.

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

    Each week there are around 413 direct flights from within Illinois to Oklahoma. The most common day for departures is Sunday, 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 11m, 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 40m.

  • 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 413 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 (95% of total searches to Oklahoma). The next most popular destinations are Oklahoma City (3%) and Tulsa (1%). Searches for flights 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 4190 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

Southwest has inacted unfriendly customer policies like other airlines. Watch the fine print very carefully if you are having to alter flight arrangements. Rules are now complicated and very stilted to travelers sacrificing travel funds (unlike before where the simple, straight forward flight change policy was worth the extra premium for ticket price.) On the positive side, SW Flight crews are still wonderfully helpful.

8.0 ExcellentTamara, Aug 2026
Read more Southwest reviews

Southwest has inacted unfriendly customer policies like other airlines. Watch the fine print very carefully if you are having to alter flight arrangements. Rules are now complicated and very stilted to travelers sacrificing travel funds (unlike before where the simple, straight forward flight change policy was worth the extra premium for ticket price.) On the positive side, SW Flight crews are still wonderfully helpful.

Boarding process of asking for volunteers to check bags goes against the system you had before with 2 bags checked free. This process is more of a guilt trip than a caring attitude toward the customer. In addition bag-size scrutiny has increased which also slows down the process of boarding. My wife said she will not fly on your airline again unless there is no other option.

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 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.

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.

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Terrible service - they don’t want to be there and bad food. Entertainment system in economy from the 2000s

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

Flight delayed, last seat on the plane, no arrival Gate available due to the plane departing late

Kayak booked this flight with only 1h 20min layover in Chicago. This made it impossible for me and several other passengers to reach this flight. Moreover, the gate closed boarding in spite of several passengers still on their way without waiting even one more minute. However, the plane departed with 20min (!) delay, i.e., there would have been at least 15 min time to let the delayed passengers board without causing any delays. I complained and as a "thank you" the attendent booked us on the last (!) flight to Indianapolis ~7h later! Thankfully, I caught the spitefulness and the United customer line rebooked the flight to an earlier flight. Although I can't grade this particular flight since I never had a chance to take it, Kayak made the mistake of a too short layover and the crew at the gate was awful.

Flight did not have wifi service. It was experiencing technical difficulties. Definitely and old plane that needs updating.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

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.

American airlines is always delayed in their flights. No access to wifi unless paid

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.

More options for your flight to Oklahoma

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