HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oklahoma City

$69+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Oklahoma City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 18, 2025.

Round-trip from

$137
(Southwest)

One-way from

$69
(Southwest)

Popular in

January

Cheapest in

August

Average price

$381

Good round-trip deal

$283 or less

Good one-way deal

$202 or less
From Illinois to Oklahoma City Will Rogers World
Search Deals
One-way flight from Illinois to Oklahoma City Will Rogers World
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Oklahoma City Will Rogers World.
Search Deals
Price to beat on a one-way flight from Illinois to Oklahoma City Will Rogers World.
Search Deals

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 June 18, 2025.

This Southwest deal was found by Cheapflights users on 6/16. 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 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 8/145:10 pmOKC - STL
Nonstop1h 30mSouthwest
Deal found 6/16$137
This Frontier deal was found by Cheapflights users on 6/16. 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.
Thu 7/35:01 amORD - OKC
1 stop6h 23mFrontier
Sun 7/612:24 pmOKC - ORD
1 stop11h 58mFrontier
Deal found 6/16$180
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 8/1810:10 pmORD - OKC
1 stop9h 53mAmerican Airlines
Tue 8/199:42 amOKC - ORD
Nonstop2h 13mAmerican Airlines
Deal found 6/16$204
This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/307:29 pmSTL - OKC
1 stop26h 58mFrontier
Thu 7/36:05 amOKC - STL
1 stop27h 07mFrontier
Deal found 6/16$210
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1112:35 pmMDW - OKC
1 stop9h 42mFrontier
Sun 7/136:05 amOKC - MDW
1 stop14h 49mFrontier
Deal found 6/16$210
This Mytrip deal was found by Cheapflights users on 6/16. 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.
Fri 7/119:12 amMDW - OKC
1 stop5h 40mAllegiant Air
Sun 7/138:09 pmOKC - MDW
1 stop12h 13mAllegiant Air
Deal found 6/16$253
This American Airlines deal was found by Cheapflights users on 6/18. 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 10/38:50 amSTL - OKC
1 stop5h 25mAmerican Airlines
Sun 10/53:49 pmOKC - STL
1 stop4h 27mAmerican Airlines
Deal found 6/18$271
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/177:08 amORD - OKC
1 stop8h 31mMultiple Airlines
Mon 7/213:42 pmOKC - ORD
2 stops22h 31mMultiple Airlines
Deal found 6/17$274
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:50 amMDW - OKC
Nonstop2h 05mSouthwest
Tue 7/154:20 pmOKC - MDW
Nonstop1h 55mSouthwest
Deal found 6/16$277
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/29:15 amORD - OKC
Nonstop2h 39mUnited Airlines
Wed 7/169:40 amOKC - ORD
Nonstop2h 18mUnited Airlines
Deal found 6/16$280
This Delta deal was found by Cheapflights users on 6/16. 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.
Tue 7/155:05 pmMDW - OKC
1 stop6h 53mDelta
Wed 7/161:55 pmOKC - MDW
1 stop7h 47mDelta
Deal found 6/16$297
This Delta deal was found by Cheapflights users on 6/16. 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.
Tue 7/13:40 pmORD - OKC
1 stop8h 19mDelta
Wed 7/165:16 pmOKC - ORD
1 stop6h 53mDelta
Deal found 6/16$300

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 June 18, 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

Tue 8/12

8:45 pm-10:10 pm

Nonstop1h 25m

Oklahoma City Will Rogers World

Thu 8/14

5:10 pm-6:40 pm

Nonstop1h 30m

$137

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 7/3

5:01 am-11:24 am

1 stop6h 23m

Oklahoma City Will Rogers World

Sun 7/6

12:24 pm-12:22 am

1 stop11h 58m

$180

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Mon 8/18

10:10 pm-8:03 am

1 stop9h 53m

Oklahoma City Will Rogers World

Tue 8/19

9:42 am-11:55 am

Nonstop2h 13m

$204

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Mon 6/30

7:29 pm-10:27 pm

1 stop26h 58m

Oklahoma City Will Rogers World

Thu 7/3

6:05 am-9:12 am

1 stop27h 07m

$210

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Fri 7/11

12:35 pm-10:17 pm

1 stop9h 42m

Oklahoma City Will Rogers World

Sun 7/13

6:05 am-8:54 pm

1 stop14h 49m

$210

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Fri 7/11

9:12 am-2:52 pm

1 stop5h 40m

Oklahoma City Will Rogers World

Sun 7/13

8:09 pm-8:22 am

1 stop12h 13m

$253

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Fri 10/3

8:50 am-2:15 pm

1 stop5h 25m

Oklahoma City Will Rogers World

Sun 10/5

3:49 pm-8:16 pm

1 stop4h 27m

$271

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 7/17

7:08 am-3:39 pm

1 stop8h 31m

Oklahoma City Will Rogers World

Mon 7/21

3:42 pm-2:13 pm

2 stops22h 31m

$274

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Tue 7/15

7:50 am-9:55 am

Nonstop2h 05m

Oklahoma City Will Rogers World

Tue 7/15

4:20 pm-6:15 pm

Nonstop1h 55m

$277

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Wed 7/2

9:15 am-11:54 am

Nonstop2h 39m

Oklahoma City Will Rogers World

Wed 7/16

9:40 am-11:58 am

Nonstop2h 18m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 35 results
1
2
3
4

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 $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 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 June 18, 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 June 18, 2025.

The most flights from USIL to OKC 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 (20 on average).

Rainfall in Oklahoma City by month

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

In terms of precipitation, rainfall in Oklahoma City 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 City when rainfall is around 1.2 in.

Temperature in Oklahoma City by month

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

If weather is an important factor for your trip to Oklahoma City, 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 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 June 18, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Illinois to Oklahoma City. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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
7,965 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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
8,809 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
722 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

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 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 $69 on Southwest. Other airlines that offer cheap prices include American Airlines from $72 and Frontier from $90 one-way.

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

    While some choose either Chicago Midway - Oklahoma City Will Rogers World or Lambert-St Louis - 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 (94%), United Airlines (82%), Air New Zealand (77%).

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

    The cheapest flight price from Illinois to Oklahoma City is $141. On average you can expect to pay $395. The most popular route, (Chicago O'Hare Intl - Oklahoma City Will Rogers World), can usually be booked for $277.

  • 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 $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

Traveling to a place near Illinois?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Oklahoma City

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
Boston to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
Burbank to Dallas/Fort Worth flights
Portland to Dallas/Fort Worth flights
Atlanta to Dallas/Fort Worth flights
Minneapolis to Dallas/Fort Worth flights
Orlando to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
Santa Ana to Dallas/Fort Worth flights
Fort Lauderdale to Dallas/Fort Worth flights
Charlotte to Dallas/Fort Worth flights
Hobby to Dallas/Fort Worth flights
Salt Lake City to Dallas/Fort Worth flights
Philadelphia to Dallas/Fort Worth flights
San Jose to Dallas/Fort Worth flights
San Diego to Dallas/Fort Worth flights
George Bush Intcntl to Dallas/Fort Worth flights
Midway to Dallas/Fort Worth flights
Miami to Dallas/Fort Worth flights
Tampa to Dallas/Fort Worth flights
Memphis to Dallas/Fort Worth flights
Cincinnati to Dallas/Fort Worth flights
Raleigh to Dallas/Fort Worth flights
Oakland to Dallas/Fort Worth flights
Sky Harbor Intl to Dallas/Fort Worth flights
Las Vegas to Dallas/Fort Worth flights
Columbus to Dallas/Fort Worth flights
Ontario to Dallas/Fort Worth flights
Nashville to Dallas/Fort Worth flights
Omaha to Dallas/Fort Worth flights
Milwaukee to Dallas/Fort Worth flights
Pasco to Oklahoma City flights
Pittsburgh to Dallas/Fort Worth flights
Sacramento to Dallas/Fort Worth flights
Hartford to Dallas/Fort Worth flights
Jacksonville to Dallas/Fort Worth flights
Grand Rapids to Dallas/Fort Worth flights
St. Louis to Dallas/Fort Worth flights
Cleveland to Dallas/Fort Worth flights
Fresno to Dallas/Fort Worth flights

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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$143FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$217Average$462FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$244Average$413FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$262Average$340FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.