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$85+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$188
(Booking.com)

One-way from

$85
(Frontier)

Popular in

January

Cheapest in

August

Average price

$394

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 City Will Rogers World
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One-way flight from Illinois to Oklahoma City Will Rogers World
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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 March 2025
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Price to beat on a round-trip flight from Illinois to Oklahoma City Will Rogers World.
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Price to beat on a one-way flight from Illinois to Oklahoma City Will Rogers World.
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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 March 31, 2025.

This Booking.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/166:51 pmSTL - OKC
1 stop24h 40mFrontier
Sat 4/198:14 pmOKC - STL
1 stop15h 27mFrontier
Deal found 3/30$188
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/144:50 pmSTL - OKC
1 stop6h 24mUnited Airlines
Wed 5/215:00 amOKC - STL
1 stop4h 56mUnited Airlines
Deal found 3/30$247
This Southwest deal was found by Cheapflights users on 3/30. 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.
Fri 7/2510:00 amSTL - OKC
2 stops5h 40mSouthwest
Mon 7/285:55 amOKC - STL
1 stop4h 20mSouthwest
Deal found 3/30$252
This Delta deal was found by Cheapflights users on 3/30. 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.
Fri 4/257:01 pmSTL - OKC
1 stop4h 50mDelta
Sun 4/275:52 amOKC - STL
1 stop5h 53mDelta
Deal found 3/30$267
This American Airlines deal was found by Cheapflights users on 3/30. 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 4/255:27 pmSTL - OKC
1 stop6h 21mAmerican Airlines
Sun 4/275:10 amOKC - STL
1 stop4h 27mAmerican Airlines
Deal found 3/30$274
This American Airlines deal was found by Cheapflights users on 3/30. 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 4/198:25 amORD - OKC
Nonstop2h 26mAmerican Airlines
Sun 4/201:40 pmOKC - ORD
Nonstop2h 08mAmerican Airlines
Deal found 3/30$285
This United Airlines deal was found by Cheapflights users on 3/31. 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 5/19:30 amORD - OKC
Nonstop2h 36mUnited Airlines
Mon 5/54:40 pmOKC - ORD
Nonstop2h 15mUnited Airlines
Deal found 3/31$287
This Southwest deal was found by Cheapflights users on 3/31. 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.
Thu 5/19:50 pmMDW - OKC
Nonstop2h 05mSouthwest
Wed 5/73:05 pmOKC - MDW
Nonstop1h 55mSouthwest
Deal found 3/31$287
This Booking.com deal was found by Cheapflights users on 3/29. 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.
Wed 4/26:40 amORD - OKC
1 stop12h 51mFrontier
Fri 4/48:27 pmOKC - ORD
1 stop16h 50mFrontier
Deal found 3/29$290
This Booking.com deal was found by Cheapflights users on 3/29. 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.
Wed 4/26:40 amMDW - OKC
1 stop12h 51mFrontier
Fri 4/48:27 pmOKC - MDW
1 stop27h 54mFrontier
Deal found 3/29$290
This United deal was found by Cheapflights users on 3/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/23:39 pmPIA - OKC
1 stop6h 24mUnited Airlines
Mon 8/44:30 pmOKC - PIA
1 stop5h 02mUnited Airlines
Deal found 3/31$294
This Delta deal was found by Cheapflights users on 3/31. 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.
Thu 5/15:30 amORD - OKC
1 stop4h 58mDelta
Wed 5/71:47 pmOKC - ORD
1 stop5h 03mDelta
Deal found 3/31$307

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 March 31, 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

Wed 4/16

6:51 pm-7:31 pm

1 stop24h 40m

Oklahoma City Will Rogers World

Sat 4/19

8:14 pm-11:41 am

1 stop15h 27m

$188

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Wed 5/14

6:00 am-11:15 am

1 stop5h 15m

Oklahoma City Will Rogers World

Wed 5/21

5:00 am-9:56 am

1 stop4h 56m

$247

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Fri 7/25

10:00 am-3:40 pm

2 stops5h 40m

Oklahoma City Will Rogers World

Mon 7/28

5:55 am-10:15 am

1 stop4h 20m

$252

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Fri 4/25

7:01 pm-11:51 pm

1 stop4h 50m

Oklahoma City Will Rogers World

Sun 4/27

5:52 am-11:45 am

1 stop5h 53m

$267

St. LouisOklahoma City

STL - OKC

STLOKC

Lambert-St Louis

Fri 4/25

5:27 pm-11:48 pm

1 stop6h 21m

Oklahoma City Will Rogers World

Sun 4/27

5:10 am-9:37 am

1 stop4h 27m

$274

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Sat 4/19

8:25 am-10:51 am

Nonstop2h 26m

Oklahoma City Will Rogers World

Sun 4/20

1:40 pm-3:48 pm

Nonstop2h 08m

$285

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 5/1

7:55 pm-10:29 pm

Nonstop2h 34m

Oklahoma City Will Rogers World

Wed 5/7

1:15 pm-3:33 pm

Nonstop2h 18m

$287

ChicagoOklahoma City

MDW - OKC

MDWOKC

Chicago Midway

Thu 5/1

9:50 pm-11:55 pm

Nonstop2h 05m

Oklahoma City Will Rogers World

Wed 5/7

3:05 pm-5:00 pm

Nonstop1h 55m

$287

ChicagoOklahoma City

ORD - OKC

ORDOKC

Chicago O'Hare Intl

Thu 5/15

4:15 pm-8:54 am

1 stop16h 39m

Oklahoma City Will Rogers World

Thu 5/22

3:23 pm-12:17 am

1 stop8h 54m

$293

PeoriaOklahoma City

PIA - OKC

PIAOKC

Greater Peoria

Sat 8/2

3:39 pm-10:03 pm

1 stop6h 24m

Oklahoma City Will Rogers World

Mon 8/4

4:30 pm-9:32 pm

1 stop5h 02m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 34 results
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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 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 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 March 31, 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 March 31, 2025.

The most flights from USIL to OKC are scheduled on a Monday (24 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (14 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 March 31, 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
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Allegiant Air
7.3
Good
731 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $85 on Frontier. Other airlines that offer cheap prices include Southwest from $117 and Delta from $124 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: Japan Airlines (90%), Envoy Air (85%), Air Canada (79%).

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

    The cheapest flight price from Illinois to Oklahoma City is $67. On average you can expect to pay $441. The most popular route, (Chicago O'Hare Intl - Oklahoma City Will Rogers World), can usually be booked for $287.

  • 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 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

Traveling to a place near Illinois?

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

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Alternative routes for Illinois to Oklahoma City

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 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$143FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$218Average$392FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$220Average$446FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$262Average$340FlexibilityNo cancel feeOn-time63%
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