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$46+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$95
(Frontier)

One-way from

$46
(Frontier)

Popular in

January

Cheapest in

August

Average price

$367

Good round-trip deal

$306 or less

Good one-way deal

$176 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 ($36 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 February 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 February 22, 2025.

This Frontier deal was found by Cheapflights users on 2/21. 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.
Tue 3/257:50 amMDW - DFW
Nonstop2h 49mFrontier
Wed 3/2611:44 amDFW - MDW
Nonstop2h 15mFrontier
Deal found 2/21$95
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Tue 3/259:57 pmORD - DFW
Nonstop2h 51mSpirit Airlines
Thu 3/2710:31 amDFW - ORD
Nonstop2h 22mSpirit Airlines
Deal found 2/21$95
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Fri 4/185:01 amORD - DFW
Nonstop2h 45mFrontier
Sat 4/198:14 pmDFW - ORD
Nonstop2h 31mFrontier
Deal found 2/21$97
This CheapOair deal was found by Cheapflights users on 2/21. 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 5/910:55 amORD - DFW
Nonstop2h 51mMultiple Airlines
Tue 5/1310:56 amDFW - ORD
1 stop11h 32mMultiple Airlines
Deal found 2/21$98
This American Airlines deal was found by Cheapflights users on 2/22. 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 4/258:35 pmORD - DFW
Nonstop2h 51mAmerican Airlines
Sat 4/265:00 pmDFW - ORD
Nonstop2h 22mAmerican Airlines
Deal found 2/22$147
This Frontier deal was found by Cheapflights users on 2/22. 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.
Fri 4/46:40 amORD - XNA
1 stop7h 06mFrontier
Mon 4/72:46 pmXNA - ORD
1 stop9h 56mFrontier
Deal found 2/22$159
This Frontier deal was found by Cheapflights users on 2/21. 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.
Fri 3/146:40 amMDW - XNA
1 stop7h 19mFrontier
Mon 3/172:49 pmXNA - MDW
1 stop9h 28mFrontier
Deal found 2/21$160
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/135:24 pmSTL - OKC
1 stop17h 00mFrontier
Thu 3/208:27 pmOKC - STL
1 stop12h 49mFrontier
Deal found 2/20$177
This Delta deal was found by Cheapflights users on 2/21. 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.
Mon 4/77:13 pmSTL - DFW
1 stop4h 44mDelta
Tue 4/159:53 amDFW - STL
1 stop5h 13mDelta
Deal found 2/21$197
This Delta deal was found by Cheapflights users on 2/21. 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 4/812:48 pmMDW - DFW
1 stop8h 10mDelta
Tue 4/225:30 amDFW - MDW
1 stop7h 05mDelta
Deal found 2/21$197
This Delta deal was found by Cheapflights users on 2/21. 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.
Sat 4/199:45 amORD - DFW
1 stop4h 51mDelta
Tue 4/227:00 amDFW - ORD
1 stop5h 05mDelta
Deal found 2/21$197
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Sat 3/85:37 pmSTL - DFW
Nonstop2h 11mAmerican Airlines
Tue 3/118:54 amDFW - STL
Nonstop1h 44mAmerican Airlines
Deal found 2/21$202

Find flights from Illinois to Oklahoma within your budget

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 February 22, 2025.

Fly from

Illinois

Fly to

Oklahoma

Route

Depart

Return

Price

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

Tue 3/25

7:50 am-10:39 am

Nonstop2h 49m

Dallas/Fort Worth

Wed 3/26

11:44 am-1:59 pm

Nonstop2h 15m

$95

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Tue 3/25

9:57 pm-12:48 am

Nonstop2h 51m

Dallas/Fort Worth

Thu 3/27

10:31 am-12:53 pm

Nonstop2h 22m

$95

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 4/18

5:01 am-7:46 am

Nonstop2h 45m

Dallas/Fort Worth

Sat 4/19

8:14 pm-10:45 pm

Nonstop2h 31m

$97

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 5/9

10:55 am-1:46 pm

Nonstop2h 51m

Dallas/Fort Worth

Tue 5/13

10:56 am-10:28 pm

1 stop11h 32m

$98

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Fri 4/25

6:55 am-9:35 am

Nonstop2h 40m

Dallas/Fort Worth

Sun 4/27

6:00 am-8:25 am

Nonstop2h 25m

$147

ChicagoFayetteville

ORD - XNA

ORDXNA

Chicago O'Hare Intl

Fri 4/4

6:40 am-1:46 pm

1 stop7h 06m

Fayetteville Northwest Arkansas

Mon 4/7

2:46 pm-12:42 am

1 stop9h 56m

$159

ChicagoFayetteville

MDW - XNA

MDWXNA

Chicago Midway

Fri 3/14

6:40 am-1:59 pm

1 stop7h 19m

Fayetteville Northwest Arkansas

Mon 3/17

2:49 pm-12:17 am

1 stop9h 28m

$160

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Thu 3/13

5:24 pm-10:24 am

1 stop17h 00m

Oklahoma City Will Rogers World

Thu 3/20

8:27 pm-9:16 am

1 stop12h 49m

$177

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 4/7

7:13 pm-11:57 pm

1 stop4h 44m

Dallas/Fort Worth

Tue 4/15

9:53 am-3:06 pm

1 stop5h 13m

$197

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

Tue 4/8

12:48 pm-8:58 pm

1 stop8h 10m

Dallas/Fort Worth

Tue 4/22

5:30 am-12:35 pm

1 stop7h 05m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

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.

Travel insights for flights from Illinois to Oklahoma

Get recent, data-driven insights about flights from Illinois to Oklahoma including ideal travel times, pricing trends, and more.

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 February 22, 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 February 22, 2025.

The most flights from USIL to USOK are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 February 22, 2025.
See what other customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,396 reviews

Overall

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $46. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$143FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$205Average$398FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$226Average$423FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$262Average$346FlexibilityNo cancel feeOn-time63%
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