$95+ Cheap flights from Illinois to Oklahoma City (OKC)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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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
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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
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Cheapest flights from Illinois to Oklahoma CityExplore 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 September 13, 2026.
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 September 13, 2026.
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:00 pm -
1 stop23h 32m
Thu 10/298:19 pm -
1 stop22h 55m
Deal found 9/10![Frontier logo]()
$192
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:17 pm -
1 stop25h 20m
Thu 10/18:30 pm -
1 stop22h 47m
Deal found 9/10![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/28:10 pm -
1 stop23h 25m
Mon 10/58:30 pm -
2 stops15h 02m
Deal found 9/8![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Wed 10/144:19 pm -
1 stop27h 23m
Fri 10/168:27 pm -
1 stop22h 30m
Deal found 9/8![Frontier logo]()
$244
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Wed 10/712:17 pm -
1 stop29h 33m
Sun 10/116:45 pm -
1 stop17h 50m
Deal found 9/8![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:30 am -
1 stop13h 05m
Tue 9/298:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$251
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am -
1 stop13h 05m
Sun 10/48:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:30 am -
1 stop13h 02m
Mon 10/198:27 pm -
2 stops17h 58m
Deal found 9/9![Frontier logo]()
$253
This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:30 am -
1 stop13h 05m
Sun 10/48:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$254
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/236:30 am -
1 stop13h 12m
Mon 10/268:27 pm -
1 stop27h 54m
Deal found 9/8![Frontier logo]()
$255
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 am -
1 stop12h 54m
Sat 11/148:19 pm -
1 stop28h 02m
Deal found 9/10![Frontier logo]()
$256
This Frontier deal was found by Cheapflights users on 9/8. 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 10/16:30 am -
1 stop13h 05m
Mon 10/52:25 pm -
1 stop15h 13m
Deal found 9/8![Frontier logo]()
$258
Best flights from Illinois to Oklahoma CityDiscover carefully curated flight deals from Illinois to Oklahoma City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Illinois to Oklahoma City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/266:25 pm -
1 stop5h 30m
Wed 10/282:20 pm -
1 stop4h 40m
Deal found 9/9![Southwest logo]()
$305
This American Airlines deal was found by Cheapflights users on 9/8. 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 10/34:43 pm -
1 stop4h 22m
Wed 10/77:20 pm -
1 stop4h 50m
Deal found 9/8![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/83:41 pm -
1 stop6h 50m
Sun 10/115:49 pm -
1 stop5h 09m
Deal found 9/8![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 9/8. 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.
Wed 10/74:26 pm -
1 stop7h 32m
Sun 10/115:20 am -
1 stop6h 06m
Deal found 9/8![Delta logo]()
$388
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 10/245:20 am -
1 stop5h 25m
Sat 10/319:50 am -
2 stops7h 15m
Deal found 9/9![Southwest logo]()
$310
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:30 pm -
1 stop6h 06m
Sun 10/117:20 pm -
1 stop4h 39m
Deal found 9/9![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:30 am -
2 stops7h 20m
Mon 10/55:40 am -
1 stop3h 30m
Deal found 9/10![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/233:35 pm -
2 stops7h 40m
Sun 9/275:49 pm -
1 stop5h 09m
Deal found 9/8![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/161:23 pm -
1 stop5h 15m
Sat 9/191:36 pm -
1 stop4h 34m
Deal found 9/8![American Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 9/8. 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 11/510:20 am -
Nonstop2h 15m
Sat 11/75:00 am -
Nonstop1h 55m
Deal found 9/8![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:30 am -
2 stops12h 48m
Thu 11/127:00 am -
1 stop5h 10m
Deal found 9/10![United Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:30 am -
Nonstop2h 05m
Tue 10/65:00 am -
Nonstop1h 55m
Deal found 9/10![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:00 am -
2 stops9h 27m
Tue 9/227:38 am -
1 stop6h 33m
Deal found 9/10![American Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:15 am -
1 stop6h 31m
Sat 1/911:54 am -
2 stops11h 12m
Deal found 9/9![United Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 9/9. 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.
Thu 11/194:25 pm -
1 stop6h 25m
Thu 11/265:05 am -
Nonstop1h 50m
Deal found 9/9![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:30 pm -
Nonstop2h 30m
Mon 10/57:15 am -
Nonstop2h 25m
Deal found 9/10![United Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 9/8. 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 10/110:25 pm -
Nonstop2h 05m
Mon 10/510:10 am -
2 stops7h 40m
Deal found 9/8![Southwest logo]()
$340
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/93:58 pm -
1 stop4h 36m
Sun 10/117:20 pm -
1 stop4h 39m
Deal found 9/11![American Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 9/8. 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 10/910:25 pm -
Nonstop2h 10m
Sat 10/101:15 pm -
Nonstop1h 55m
Deal found 9/8![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:04 am -
2 stops12h 27m
Sun 11/155:30 am -
1 stop4h 55m
Deal found 9/9![Delta logo]()
$626
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/65:00 am -
2 stops8h 01m
Sun 10/113:14 pm -
2 stops8h 45m
Deal found 9/11![American Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 9/8. 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 10/155:05 am -
1 stop4h 30m
Sun 10/185:30 am -
1 stop4h 00m
Deal found 9/8![Southwest logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:35 pm -
Nonstop2h 30m
Sun 10/49:15 am -
Nonstop2h 35m
Deal found 9/12![United Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:44 pm -
2 stops9h 15m
Sun 11/155:30 am -
1 stop4h 55m
Deal found 9/10![Delta logo]()
$626
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:30 pm -
Nonstop2h 30m
Mon 10/57:10 pm -
1 stop5h 13m
Deal found 9/12![United Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:19 am -
2 stops8h 58m
Mon 10/261:32 pm -
1 stop7h 06m
Deal found 9/12![Delta logo]()
$646
This Southwest deal was found by Cheapflights users on 9/9. 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.
Fri 10/910:25 pm -
Nonstop2h 10m
Sun 10/115:00 am -
Nonstop1h 55m
Deal found 9/9![Southwest logo]()
$385
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/24:24 pm -
1 stop4h 41m
Sun 10/47:10 pm -
1 stop4h 49m
Deal found 9/11![American Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:35 pm -
Nonstop2h 30m
Wed 9/235:45 pm -
Nonstop2h 31m
Deal found 9/9![United Airlines logo]()
$485
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 9/268:25 am -
2 stops6h 30m
Sat 10/32:50 pm -
1 stop5h 15m
Deal found 9/8![Southwest logo]()
$405
Last-minute flights from Illinois to Oklahoma CityDiscover last-minute flight deals from Illinois to Oklahoma City. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Oklahoma City. Data last updated September 13, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am -
1 stop13h 05m
Sun 10/48:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$252
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:30 am -
1 stop13h 05m
Tue 9/298:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$251
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:17 pm -
1 stop25h 20m
Thu 10/18:30 pm -
1 stop22h 47m
Deal found 9/10![Frontier logo]()
$223
This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:30 am -
1 stop13h 05m
Sun 10/48:30 pm -
1 stop27h 53m
Deal found 9/9![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 9/8. 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 10/16:30 am -
1 stop13h 05m
Mon 10/52:25 pm -
1 stop15h 13m
Deal found 9/8![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/28:10 pm -
1 stop23h 25m
Mon 10/58:30 pm -
2 stops15h 02m
Deal found 9/8![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Wed 10/712:17 pm -
1 stop29h 33m
Sun 10/116:45 pm -
1 stop17h 50m
Deal found 9/8![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am -
1 stop13h 12m
Mon 10/128:27 pm -
1 stop27h 57m
Deal found 9/10![Frontier logo]()
$256
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Wed 10/144:19 pm -
1 stop27h 23m
Fri 10/168:27 pm -
1 stop22h 30m
Deal found 9/8![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:30 am -
1 stop13h 02m
Mon 10/198:27 pm -
2 stops17h 58m
Deal found 9/9![Frontier logo]()
$253
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:00 pm -
1 stop23h 32m
Thu 10/298:19 pm -
1 stop22h 55m
Deal found 9/10![Frontier logo]()
$192
This Trip.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/236:30 am -
1 stop13h 12m
Mon 10/268:27 pm -
1 stop27h 54m
Deal found 9/8![Frontier logo]()
$255
One-way flights from Illinois to Oklahoma CitySearch for one-way flight options from Illinois to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from Illinois to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/28:10 pm -
1 stop23h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$95
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:30 am -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:30 am -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/66:30 am -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:30 am -
1 stop12h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 am -
1 stop12h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/76:30 am -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 am -
1 stop12h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am -
1 stop13h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:43 pm -
1 stop22h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$125
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:30 am -
1 stop13h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:54 pm -
2 stops30h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$141
Find 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (Trip.com) |
One-way from | $95 (CheapOair) |
Popular in | August |
Cheapest in | September |
Average price | $331 |
Good round-trip deal | $328 or less |
Good one-way deal | $232 or less |
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 7,457,451 searches. Data last updated September 13, 2026.
Use the filters below to find and compare flights from Illinois to Oklahoma City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Fri 10/2
8:10 pm-7:35 pm
1 stop23h 25m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$95
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Thu 11/12
6:50 pm-12:20 am
1 stop5h 30m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$153
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Wed 9/23
8:10 pm-7:35 pm
1 stop23h 25m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Wed 10/7
8:55 pm-11:05 pm
Nonstop2h 10m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$163
Quickest round-trip
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Tue 9/29
8:20 pm-10:25 pm
Nonstop2h 05m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$163
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Fri 10/2
8:30 am-3:50 pm
2 stops7h 20m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$167
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Thu 11/12
12:14 pm-7:24 pm
2 stops31h 10m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$168
ChicagoOklahoma City
ORD Chicago O'Hare Intl - OKC Oklahoma City Will Rogers World
ORDOKC
Chicago O'Hare Intl
Wed 12/9
5:30 am-12:37 pm
1 stop7h 07m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Thu 12/10
1:02 pm-8:33 pm
1 stop7h 31m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Sat 11/7
4:19 pm-11:00 pm
1 stop6h 41m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
Showing 1-10 of 60 resultsSorted by cheapest first
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.
STL-OKC
ORD-OKC
MDW-OKC
PIA-OKC
BMI-OKC
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
USIL-OKC
STL-OKC
ORD-OKC
MDW-OKC
PIA-OKC
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 $340). Flying from Illinois to Oklahoma City in July is currently the most expensive (average of $495). 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 September 13, 2026.
When flying from Illinois to Oklahoma City, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 17% versus a flight in the evening.
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 September 13, 2026.
The most flights from USIL to OKC are scheduled on a Friday (25 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost to fly round-trip from Illinois to Oklahoma City?
Airfare is below average for this route at the moment.
Illinois to Oklahoma City flights typically cost between $253 and $446 in September.The cheapest round-trip price found within the last 5 days was $251 on Frontier (Sep 26-Sep 29).
How far ahead should I book a flight from Illinois to Oklahoma City?
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Oklahoma City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Illinois to Oklahoma City?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Oklahoma City. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Illinois to Oklahoma City flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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.
Traveling to a place near Oklahoma City?
Book flights to Oklahoma City if you plan to visit one of these locationsMoore
Norman
Edmond
Shawnee
Midwest City
Ada
Browse thousands of different options on Cheapflights for your next trip
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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.
Complete your trip
Complete your trip to Oklahoma City by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Oklahoma City by cabin class
Find flights from Illinois to Oklahoma City, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Oklahoma City
Explore flights to Oklahoma City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Illinois and Oklahoma City flights
Browse other Illinois and Oklahoma City flight options. Last updated on September 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Oklahoma City flights
Consider these flights traveling from Illinois to Oklahoma City.
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 7,457,451 searches. Data last updated September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$252 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$201 | Average$417 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$294 | Average$373 | FlexibilityNo cancel fee | On-time63% |