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$49+ Cheap flights from Illinois to Oklahoma

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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Illinois to Oklahoma

Keep the following information in mind while searching for Illinois to Oklahoma flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$100
(CheapOair)

One-way from

$49
(Cheapflightsfares)

Popular in

January

Cheapest in

August

Average price

$447

Good round-trip deal

$287 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Chicago (CHI)-Oklahoma City Will Rogers World flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Oklahoma City Will Rogers World flights.
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From Illinois to Oklahoma
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One-way flight from Illinois to Oklahoma
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Highest demand for flights based on searches. 8% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Illinois to Oklahoma.
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Price to beat on a one-way flight from Illinois to Oklahoma.
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Find flight deals from Illinois to Oklahoma

Cheapest flights from Illinois to Oklahoma
Explore the most affordable flight options available from Illinois to Oklahoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:59 pmORD - DFW
1 stop10h 33mMultiple Airlines
Mon 5/195:10 amDFW - ORD
Nonstop2h 35mMultiple Airlines
Deal found 4/17$99
This CheapOair deal was found by Cheapflights users on 4/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/98:40 amORD - DFW
Nonstop2h 47mFrontier
Mon 5/125:10 amDFW - ORD
Nonstop2h 35mFrontier
Deal found 4/17$100
This eDestinos deal was found by Cheapflights users on 4/16. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:59 pmORD - DFW
1 stop10h 33mSpirit Airlines
Mon 5/126:40 pmDFW - ORD
1 stop14h 10mSpirit Airlines
Deal found 4/16$109
This Frontier deal was found by Cheapflights users on 4/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/122:45 pmMDW - DFW
Nonstop2h 32mFrontier
Sat 6/1411:25 amDFW - MDW
Nonstop2h 23mFrontier
Deal found 4/16$114
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 5/147:59 pmORD - DFW
Nonstop2h 51mUnited Airlines
Wed 5/217:00 amDFW - ORD
Nonstop2h 33mUnited Airlines
Deal found 4/16$147
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/86:00 amORD - DFW
Nonstop2h 25mAmerican Airlines
Sun 5/117:00 amDFW - ORD
Nonstop2h 34mAmerican Airlines
Deal found 4/16$163
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:45 pmSTL - DFW
1 stop25h 31mFrontier
Fri 5/99:45 amDFW - STL
1 stop24h 14mFrontier
Deal found 4/16$191
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/259:55 pmSTL - DFW
1 stop7h 48mMultiple Airlines
Sun 4/275:20 amDFW - STL
1 stop11h 55mMultiple Airlines
Deal found 4/16$196
This Delta deal was found by Cheapflights users on 4/16. 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 5/141:08 pmMDW - DFW
1 stop4h 37mDelta
Sat 5/174:17 pmDFW - MDW
1 stop4h 57mDelta
Deal found 4/16$197
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 5/2110:15 amORD - TUL
1 stop7h 35mAmerican Airlines
Wed 5/217:24 pmTUL - ORD
Nonstop2h 04mAmerican Airlines
Deal found 4/17$203
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 5/233:30 pmORD - XNA
Nonstop1h 51mAmerican Airlines
Sun 5/253:50 pmXNA - ORD
Nonstop1h 54mAmerican Airlines
Deal found 4/17$209
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1710:10 amSTL - DFW
2 stops21h 27mSpirit Airlines
Wed 5/216:40 pmDFW - STL
1 stop14h 35mSpirit Airlines
Deal found 4/16$213

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Oklahoma 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 April 17, 2025.
Use the filters below to find and compare flights from Illinois to Oklahoma that are best for you.

Fly from

Illinois

Fly to

Oklahoma

Route

Depart

Return

Price

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Thu 5/8

6:59 pm-5:32 am

1 stop10h 33m

Dallas/Fort Worth

Mon 5/19

5:10 am-7:45 am

Nonstop2h 35m

$99

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 5/9

8:40 am-11:27 am

Nonstop2h 47m

Dallas/Fort Worth

Mon 5/12

5:10 am-7:45 am

Nonstop2h 35m

$100

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Thu 5/8

6:59 pm-5:32 am

1 stop10h 33m

Dallas/Fort Worth

Mon 5/12

6:40 pm-8:50 am

1 stop14h 10m

$109

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

Mon 5/12

2:45 pm-5:17 pm

Nonstop2h 32m

Dallas/Fort Worth

Sat 6/14

11:25 am-1:48 pm

Nonstop2h 23m

$114

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Wed 5/14

7:59 pm-10:50 pm

Nonstop2h 51m

Dallas/Fort Worth

Wed 5/21

7:00 am-9:33 am

Nonstop2h 33m

$147

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Sat 5/24

5:00 am-7:36 am

Nonstop2h 36m

Dallas/Fort Worth

Sat 5/24

6:45 pm-9:08 pm

Nonstop2h 23m

$179

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 5/6

5:45 pm-7:16 pm

1 stop25h 31m

Dallas/Fort Worth

Fri 5/9

9:45 am-9:59 am

1 stop24h 14m

$191

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 4/25

9:55 pm-5:43 am

1 stop7h 48m

Dallas/Fort Worth

Sun 4/27

5:20 am-5:15 pm

1 stop11h 55m

$196

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

Wed 5/14

1:08 pm-5:45 pm

1 stop4h 37m

Dallas/Fort Worth

Sat 5/17

4:17 pm-9:14 pm

1 stop4h 57m

$197

ChicagoTulsa

ORD - TUL

ORDTUL

Chicago O'Hare Intl

Wed 5/21

10:15 am-5:50 pm

1 stop7h 35m

Tulsa

Wed 5/21

7:24 pm-9:28 pm

Nonstop2h 04m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Oklahoma

Have a flexible travel schedule? Discover the best time to fly to Oklahoma 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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $348). Flying from Illinois to Oklahoma in May is currently the most expensive (average of $422). 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 OK?

Find hourly flight availability from Illinois to Oklahoma. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 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 as you normally would.

Weekly flight availability from Illinois to Oklahoma

Explore weekly flight availability from Illinois to Oklahoma. 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 April 17, 2025.

The most flights from USIL to USOK are scheduled on a Thursday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

Rainfall in Oklahoma by month

Plan your trip to Oklahoma by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oklahoma ranges from 1.2 - 5.1 inches per month. May is typically the wettest month, when rainfall can reach 5.1 in. January is typically the driest time to visit Oklahoma when rainfall is around 1.2 in.

Temperature in Oklahoma by month

Plan your trip to Oklahoma by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oklahoma, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

Reviews of airlines servicing Oklahoma

Get insights into the airlines that provide service to Oklahoma. 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. Reviews last updated April 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to Oklahoma 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
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Illinois to Oklahoma for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Oklahoma 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?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $348). Flying from Illinois to Oklahoma in May is currently the most expensive (average of $422). 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

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Alternative routes for Illinois to Oklahoma

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

Discover the top 4 airlines that operate flights from Illinois to Oklahoma. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$137FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$205Average$401FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$219Average$454FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$262Average$346FlexibilityNo cancel feeOn-time63%

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