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$69+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$120
(Mytrip)

One-way from

$69
(FlightHub)

Popular in

January

Cheapest in

August

Average price

$381

Good round-trip deal

$283 or less

Good one-way deal

$60 or less
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. 6% potential increase in price ($27 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 June 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 June 12, 2025.

This Priceline deal was found by Cheapflights users on 6/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 pmORD - DFW
Nonstop2h 35mSpirit Airlines
Sun 10/53:20 pmDFW - ORD
Nonstop2h 30mSpirit Airlines
Deal found 6/11$120
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1011:21 amORD - DFW
Nonstop2h 30mMultiple Airlines
Sat 7/121:30 pmDFW - ORD
Nonstop2h 44mMultiple Airlines
Deal found 6/11$122
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:48 pmMDW - DFW
Nonstop2h 32mFrontier
Tue 10/79:52 pmDFW - MDW
Nonstop2h 19mFrontier
Deal found 6/11$125
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/145:20 amORD - DFW
Nonstop2h 38mFrontier
Sat 8/161:30 pmDFW - ORD
Nonstop2h 44mFrontier
Deal found 6/11$132
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/147:36 pmORD - OKC
Nonstop2h 27mUnited Airlines
Mon 8/189:40 amOKC - ORD
Nonstop2h 18mUnited Airlines
Deal found 6/11$157
This Southwest deal was found by Cheapflights users on 6/9. 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.
Tue 8/128:45 pmSTL - OKC
Nonstop1h 25mSouthwest
Thu 8/145:45 amOKC - STL
Nonstop1h 25mSouthwest
Deal found 6/9$157
This American Airlines deal was found by Cheapflights users on 6/11. 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 9/109:40 amORD - TUL
Nonstop2h 01mAmerican Airlines
Tue 9/1612:13 pmTUL - ORD
Nonstop2h 03mAmerican Airlines
Deal found 6/11$157
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/712:01 pmORD - OKC
Nonstop2h 16mAmerican Airlines
Mon 8/117:17 amOKC - ORD
Nonstop2h 16mAmerican Airlines
Deal found 6/12$158
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/2210:08 amSTL - DFW
Nonstop1h 49mAmerican Airlines
Wed 9/31:27 pmDFW - STL
Nonstop1h 42mAmerican Airlines
Deal found 6/12$159
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Fri 9/58:44 amSTL - DFW
1 stop11h 48mMultiple Airlines
Sun 9/78:55 amDFW - STL
Nonstop1h 52mMultiple Airlines
Deal found 6/12$165
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/128:44 pmSTL - DFW
Nonstop1h 58mFrontier
Thu 6/195:30 pmDFW - STL
Nonstop1h 54mFrontier
Deal found 6/11$166
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Thu 9/188:44 amSTL - DFW
1 stop11h 48mSpirit Airlines
Sun 9/212:19 pmDFW - STL
1 stop17h 30mSpirit Airlines
Deal found 6/10$175

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 June 12, 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

Wed 7/16

7:47 am-10:16 am

Nonstop2h 29m

Dallas/Fort Worth

Wed 7/23

2:56 pm-5:10 pm

Nonstop2h 14m

$120

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Thu 7/10

11:21 am-1:51 pm

Nonstop2h 30m

Dallas/Fort Worth

Sat 7/12

1:30 pm-4:14 pm

Nonstop2h 44m

$122

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 8/15

5:20 am-7:58 am

Nonstop2h 38m

Dallas/Fort Worth

Wed 8/20

9:21 pm-12:01 am

Nonstop2h 40m

$134

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

Sat 8/9

8:05 am-10:32 am

Nonstop2h 27m

Dallas/Fort Worth

Wed 8/13

2:40 pm-5:03 pm

Nonstop2h 23m

$141

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 8/14

7:36 pm-10:03 pm

Nonstop2h 27m

Oklahoma City Will Rogers World

Mon 8/18

9:40 am-11:58 am

Nonstop2h 18m

$157

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Tue 8/12

8:45 pm-10:10 pm

Nonstop1h 25m

Oklahoma City Will Rogers World

Thu 8/14

5:45 am-7:10 am

Nonstop1h 25m

$157

ChicagoTulsa

ORD - TUL

ORDTUL

Chicago O'Hare Intl

Wed 9/10

9:40 am-11:41 am

Nonstop2h 01m

Tulsa

Tue 9/16

12:13 pm-2:16 pm

Nonstop2h 03m

$157

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 8/7

12:01 pm-2:17 pm

Nonstop2h 16m

Oklahoma City Will Rogers World

Mon 8/11

7:17 am-9:33 am

Nonstop2h 16m

$158

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 8/22

10:08 am-11:57 am

Nonstop1h 49m

Dallas/Fort Worth

Wed 9/3

1:27 pm-3:09 pm

Nonstop1h 42m

$159

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 9/5

8:44 am-8:32 pm

1 stop11h 48m

Dallas/Fort Worth

Sun 9/7

8:55 am-10:47 am

Nonstop1h 52m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June is currently the most expensive (average of $408). 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 June 12, 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 June 12, 2025.

The most flights from USIL to USOK are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 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 June 12, 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
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Spirit Airlines, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from American 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 June is currently the most expensive (average of $408). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$143FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$216Average$424FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$244Average$406FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$262Average$346FlexibilityNo cancel feeOn-time63%

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