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$44+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheap 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 diciembre 16, 2025.

This Super.com deal was found by Cheapflights users on 12/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/317:57 pmORD - DFW
Nonstop2h 43mSpirit Airlines
mar. 1/61:35 pmDFW - ORD
Nonstop2h 25mSpirit Airlines
Deal found 12/13$109
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/319:34 pmORD - DFW
Nonstop2h 46mMultiple Airlines
mar. 1/61:35 pmDFW - ORD
Nonstop2h 25mMultiple Airlines
Deal found 12/16$127
This Frontier deal was found by Cheapflights users on 12/15. 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.
mié. 12/319:34 pmORD - DFW
Nonstop2h 46mFrontier
vie. 1/910:07 pmDFW - ORD
Nonstop2h 35mFrontier
Deal found 12/15$134
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
mié. 12/319:34 pmORD - DFW
Nonstop2h 46mMultiple Airlines
sáb. 1/1711:06 amDFW - ORD
1 stop6h 46mMultiple Airlines
Deal found 12/15$149
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
vie. 12/269:31 pmORD - DFW
Nonstop2h 46mMultiple Airlines
mar. 1/61:35 pmDFW - ORD
Nonstop2h 25mMultiple Airlines
Deal found 12/14$163
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
mar. 12/307:57 pmORD - DFW
Nonstop2h 43mMultiple Airlines
jue. 1/810:07 pmDFW - ORD
Nonstop2h 35mMultiple Airlines
Deal found 12/15$168
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2912:05 pmORD - DFW
1 stop4h 10mMultiple Airlines
jue. 1/810:07 pmDFW - ORD
Nonstop2h 35mMultiple Airlines
Deal found 12/15$170
This Frontier deal was found by Cheapflights users on 12/14. 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.
mié. 12/246:05 amORD - DFW
1 stop9h 39mFrontier
jue. 12/254:10 pmDFW - ORD
Nonstop2h 42mFrontier
Deal found 12/14$171
This Frontier deal was found by Cheapflights users on 12/14. 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.
sáb. 12/209:55 pmORD - DFW
1 stop11h 35mFrontier
lun. 1/199:10 pmDFW - ORD
Nonstop2h 33mFrontier
Deal found 12/14$172
This CheapOair deal was found by Cheapflights users on 12/15. 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.
jue. 12/256:12 amMDW - DFW
1 stop10h 42mFrontier
mar. 1/610:36 amDFW - MDW
1 stop11h 41mFrontier
Deal found 12/15$189
This CheapOair deal was found by Cheapflights users on 12/15. 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.
jue. 12/256:12 amMDW - DFW
1 stop10h 42mFrontier
mié. 12/317:00 amDFW - MDW
Nonstop2h 21mFrontier
Deal found 12/15$192
This Super.com deal was found by Cheapflights users on 12/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/248:15 amMDW - DFW
1 stop7h 29mFrontier
mié. 12/317:00 amDFW - MDW
Nonstop2h 21mFrontier
Deal found 12/14$199

Find flight deals from Illinois to Oklahoma

Keep the following information in mind while searching for Illinois to Oklahoma flight deals. Data was last updated diciembre 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$87
(Kiwi.com)

One-way from

$44
(Frontier)

Popular in

April

Cheapest in

October

Average price

$393

Good round-trip deal

$251 or less

Good one-way deal

$125 or less
Provider with most accurate pricing for Chicago (CHI)-Oklahoma City Will Rogers World flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Oklahoma City Will Rogers World flights.
Search Deals
From Illinois to Oklahoma
Search Deals
One-way flight from Illinois to Oklahoma
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Oklahoma.
Search Deals
Price to beat on a one-way flight from Illinois to Oklahoma.
Search Deals

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 diciembre 16, 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

MDW - DFW

MDWDFW

Chicago Midway

vie. 1/9

9:15 am-12:05 pm

Nonstop2h 50m

Dallas/Fort Worth

vie. 1/9

1:15 pm-3:33 pm

Nonstop2h 18m

$128

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

mié. 1/14

8:14 pm-10:59 pm

Nonstop2h 45m

Dallas/Fort Worth

mié. 1/21

1:18 pm-3:43 pm

Nonstop2h 25m

$157

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

mié. 1/14

9:15 am-12:10 pm

Nonstop2h 55m

Dallas/Fort Worth

lun. 1/19

7:00 am-9:29 am

Nonstop2h 29m

$172

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

mié. 1/14

6:45 am-12:44 pm

1 stop5h 59m

Dallas/Fort Worth

mié. 1/21

6:45 am-1:09 pm

1 stop6h 24m

$177

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

sáb. 2/28

5:00 pm-10:34 pm

1 stop5h 34m

Dallas/Fort Worth

mar. 3/3

9:56 am-5:45 pm

1 stop7h 49m

$177

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

mié. 2/4

9:55 am-3:28 pm

1 stop5h 33m

Dallas/Fort Worth

mié. 2/11

11:51 am-4:57 pm

1 stop5h 06m

$177

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

vie. 3/6

2:41 pm-11:00 pm

1 stop8h 19m

Dallas/Fort Worth

dom. 3/8

10:30 pm-12:49 am

Nonstop2h 19m

$179

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

jue. 1/15

9:32 am-2:48 pm

1 stop5h 16m

Dallas/Fort Worth

dom. 1/18

5:30 am-12:48 pm

1 stop7h 18m

$195

ChicagoDallas

MDW - DFW

MDWDFW

Chicago Midway

sáb. 1/10

5:31 pm-12:27 am

1 stop6h 56m

Dallas/Fort Worth

mié. 1/14

10:55 am-6:32 pm

1 stop7h 37m

$195

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

vie. 1/23

1:03 pm-7:58 pm

1 stop6h 55m

Dallas/Fort Worth

lun. 1/26

1:23 pm-11:33 pm

1 stop10h 10m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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, February is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $150). Flying from Illinois to Oklahoma in March is currently the most expensive (average of $259). 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 diciembre 16, 2025.

One of the essential ways to save on airfare from Illinois to Oklahoma is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 13% on airfare.

What is the cheapest day to fly from Illinois to Oklahoma?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Oklahoma. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Oklahoma flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 diciembre 16, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Illinois to Oklahoma to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,094 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,047 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

  • How long is the flight from Illinois to Oklahoma?

    There are many flights that can get you from Illinois to Oklahoma in 2h 45m. Fly via Frontier, United Airlines, or Delta to get the fastest option. The distance from Illinois to Oklahoma is about 801 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $60. However, be on the lookout for offers from Frontier and American 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, February is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $150). Flying from Illinois to Oklahoma in March is currently the most expensive (average of $259). 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$131Average$347FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$163Average$384FlexibilityNo cancel feeOn-time69%
FrontierCheapest$206Average$274FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$243Average$383FlexibilityNo cancel feeOn-time71%

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