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$70+ Cheap flights from Illinois to Oklahoma City (OKC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap flight deals from Illinois to Oklahoma City

Keep the following information in mind while searching for Illinois to Oklahoma City flight deals. Data was last updated July 28, 2025.

Round-trip from

$177
(Southwest)

One-way from

$70
(Trip.com)

Popular in

January

Cheapest in

August

Average price

$364

Good round-trip deal

$329 or less

Good one-way deal

$176 or less
From Illinois to Oklahoma City Will Rogers World
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One-way flight from Illinois to Oklahoma City Will Rogers World
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Oklahoma City Will Rogers World.
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Price to beat on a one-way flight from Illinois to Oklahoma City Will Rogers World.
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Find flight deals from Illinois to Oklahoma City

Cheapest flights from Illinois to Oklahoma City
Explore the most affordable flight options available from Illinois to Oklahoma City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/151:45 pmSTL - OKC
Nonstop1h 35mSouthwest
Tue 11/184:00 pmOKC - STL
Nonstop1h 25mSouthwest
Deal found 7/27$177
This FlightHub deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:44 pmMDW - OKC
1 stop26h 31mFrontier
Sat 8/96:05 amOKC - MDW
1 stop14h 49mFrontier
Deal found 7/27$205
This Flightnetwork deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:20 amORD - OKC
1 stop13h 18mFrontier
Wed 9/178:00 amOKC - ORD
1 stop13h 28mFrontier
Deal found 7/27$207
This FlightHub deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/307:29 pmSTL - OKC
1 stop26h 48mFrontier
Fri 8/17:59 pmOKC - STL
1 stop27h 48mFrontier
Deal found 7/26$215
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:53 amORD - OKC
Nonstop2h 23mAmerican Airlines
Tue 9/163:23 pmOKC - ORD
Nonstop2h 18mAmerican Airlines
Deal found 7/26$217
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:25 pmMDW - OKC
1 stop7h 34mDelta
Tue 9/165:30 amOKC - MDW
1 stop6h 18mDelta
Deal found 7/26$237
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:53 amPIA - OKC
1 stop4h 40mAmerican Airlines
Sun 9/145:00 amOKC - PIA
1 stop5h 53mAmerican Airlines
Deal found 7/28$249
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:25 pmMDW - OKC
Nonstop2h 00mSouthwest
Sun 8/317:55 amOKC - MDW
Nonstop2h 00mSouthwest
Deal found 7/26$250
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:00 amORD - OKC
1 stop6h 00mSouthwest
Sat 8/3010:45 amOKC - ORD
1 stop5h 40mSouthwest
Deal found 7/26$272
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:45 amORD - OKC
1 stop4h 45mDelta
Sat 8/303:55 pmOKC - ORD
1 stop8h 01mDelta
Deal found 7/26$273
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/126:45 amPIA - OKC
1 stop5h 09mUnited Airlines
Sat 8/169:40 amOKC - PIA
1 stop7h 03mUnited Airlines
Deal found 7/28$291
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:05 pmORD - OKC
Nonstop2h 23mUnited Airlines
Tue 9/167:25 amOKC - ORD
Nonstop2h 19mUnited Airlines
Deal found 7/26$305

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Oklahoma City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Illinois to Oklahoma City that are best for you.

Fly from

Illinois

Fly to

Oklahoma City

Route

Depart

Return

Price

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Sat 11/15

1:45 pm-3:20 pm

Nonstop1h 35m

Oklahoma City Will Rogers World

Tue 11/18

4:00 pm-5:25 pm

Nonstop1h 25m

$177

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Wed 9/10

7:20 am-8:38 pm

1 stop13h 18m

Oklahoma City Will Rogers World

Wed 9/17

8:00 am-9:28 pm

1 stop13h 28m

$207

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Sat 9/6

7:55 pm-11:49 pm

1 stop27h 54m

Oklahoma City Will Rogers World

Mon 9/8

7:46 pm-9:06 am

1 stop13h 20m

$215

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Sat 8/9

2:44 pm-10:38 pm

1 stop7h 54m

Oklahoma City Will Rogers World

Sun 8/10

6:00 pm-11:41 am

1 stop17h 41m

$215

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Tue 9/9

9:53 am-12:16 pm

Nonstop2h 23m

Oklahoma City Will Rogers World

Tue 9/16

3:23 pm-5:41 pm

Nonstop2h 18m

$217

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Wed 9/17

5:15 pm-7:15 pm

Nonstop2h 00m

Oklahoma City Will Rogers World

Sat 9/20

7:00 am-8:55 am

Nonstop1h 55m

$235

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Tue 9/9

4:25 pm-11:59 pm

1 stop7h 34m

Oklahoma City Will Rogers World

Tue 9/16

5:30 am-11:48 am

1 stop6h 18m

$237

PeoriaOklahoma City

PIA - OKC

PIAOKC

Greater Peoria

Thu 9/11

6:53 am-11:33 am

1 stop4h 40m

Oklahoma City Will Rogers World

Sun 9/14

5:00 am-10:53 am

1 stop5h 53m

$249

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Wed 8/27

7:00 am-1:00 pm

1 stop6h 00m

Oklahoma City Will Rogers World

Sat 8/30

10:45 am-4:25 pm

1 stop5h 40m

$272

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Wed 8/27

5:45 am-10:30 am

1 stop4h 45m

Oklahoma City Will Rogers World

Sat 8/30

3:55 pm-11:56 pm

1 stop8h 01m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 30 results
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Best time to book a flight from Illinois to Oklahoma City

Have a flexible travel schedule? Discover the best time to fly to Oklahoma City from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Illinois to Oklahoma City?

Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma City (average of $348). Flying from Illinois to Oklahoma City in June is currently the most expensive (average of $401). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to OKC?

Find hourly flight availability from Illinois to Oklahoma City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Oklahoma City as you normally would.

Weekly flight availability from Illinois to Oklahoma City

Explore weekly flight availability from Illinois to Oklahoma City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from USIL to OKC are scheduled on a Monday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (25 on average).

Reviews of airlines servicing Oklahoma City

Get insights into the airlines that provide service to Oklahoma City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oklahoma City. Reviews last updated July 28, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Illinois to Oklahoma City have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Oklahoma City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Oklahoma City from Illinois?

    Oklahoma City Will Rogers World (OKC) is the airport you will fly into if you book a flight from Illinois to Oklahoma City. It is only a 7.0 mi journey from Will Rogers World (OKC) to Oklahoma City’s city center.

  • What are the cheapest airlines to fly from Illinois to Oklahoma City one-way?

    One-way options have recently been found by users for as low as $70 on Frontier. Other airlines that offer cheap prices include Southwest from $89 and American Airlines from $93 one-way.

  • What are the most popular routes from Illinois to Oklahoma City?

    While some choose either Lambert-St Louis - Oklahoma City Will Rogers World or Chicago Midway - Oklahoma City Will Rogers World, Chicago O'Hare Intl - Oklahoma City Will Rogers World is the most popular route from Illinois to Oklahoma City.

  • What are the most reliable airlines from Illinois to Oklahoma City?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Oklahoma City on time: Republic Airways (100%), United Airlines (70%), Alaska Airlines (66%).

  • What are the cheapest flights from Illinois to Oklahoma City?

    The cheapest flight price from Illinois to Oklahoma City is $138. On average you can expect to pay $518. The most popular route, (Chicago O'Hare Intl - Oklahoma City Will Rogers World), can usually be booked for $215.

  • Can I find deals for flights from Illinois to Oklahoma City that include hotel bookings?

    Yes. In addition to deals on Illinois to Oklahoma City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Oklahoma City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Oklahoma City.

  • Can I find deals for business class flights from Illinois to Oklahoma City?

    Yes. Cheapflights offers flight deals from Illinois to Oklahoma City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Oklahoma City?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma City (average of $348). Flying from Illinois to Oklahoma City in June is currently the most expensive (average of $401). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Oklahoma City?

Book flights to Oklahoma City if you plan to visit one of these locations
Norman
Yukon
Shawnee
Ada
Moore
Edmond
Midwest City

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Alternative routes for Illinois to Oklahoma City

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Oklahoma City

Discover the top 4 airlines that operate flights from Illinois to Oklahoma City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$274FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$204Average$450FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$224Average$440FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$262Average$340FlexibilityNo cancel feeOn-time63%

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