$50+ Cheap flights from Illinois to Oklahoma
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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Oct 19 — Oct 261
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Oklahoma 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
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Cheapest flights from Illinois to OklahomaExplore 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 September 19, 2026.
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 September 19, 2026.
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 11/1212:14 pm -
Nonstop2h 03m
Mon 11/169:30 am -
Nonstop1h 49m
Deal found 9/15![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/236:35 pm -
1 stop12h 33m
Sun 10/253:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:53 pm -
Nonstop2h 01m
Mon 10/193:02 pm -
Nonstop1h 56m
Deal found 9/17![Frontier logo]()
$148
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:14 pm -
Nonstop2h 03m
Sun 11/89:30 am -
Nonstop1h 49m
Deal found 9/16![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 9/15. 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.
Fri 10/166:35 pm -
1 stop12h 33m
Sun 10/183:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/136:44 pm -
1 stop12h 34m
Mon 11/169:30 am -
Nonstop1h 49m
Deal found 9/16![Frontier logo]()
$152
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:53 pm -
Nonstop2h 01m
Mon 10/123:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$153
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Wed 10/146:35 pm -
1 stop12h 25m
Wed 10/215:30 am -
2 stops12h 10m
Deal found 9/16![Frontier logo]()
$155
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 10/166:35 pm -
1 stop12h 33m
Fri 10/233:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$156
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:53 pm -
Nonstop2h 01m
Sun 10/113:02 pm -
Nonstop1h 56m
Deal found 9/17![Frontier logo]()
$158
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:40 am -
Nonstop2h 54m
Mon 11/98:27 pm -
1 stop27h 54m
Deal found 9/16![Frontier logo]()
$196
This Super.com deal was found by Cheapflights users on 9/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:12 pm -
Nonstop2h 33m
Sat 10/1012:12 pm -
Nonstop2h 23m
Deal found 9/16![Frontier logo]()
$196
Best flights from Illinois to OklahomaDiscover carefully curated flight deals from Illinois to Oklahoma that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
Discover carefully curated flight deals from Illinois to Oklahoma that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:45 am -
1 stop7h 51m
Thu 11/267:10 am -
1 stop6h 13m
Deal found 9/14![Delta logo]()
$235
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:00 pm -
Nonstop1h 59m
Wed 10/285:55 pm -
Nonstop2h 05m
Deal found 9/14![United Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Mon 11/29:24 am -
1 stop14h 13m
Wed 11/49:10 pm -
2 stops19h 10m
Deal found 9/16![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:15 pm -
1 stop12h 20m
Fri 11/275:01 am -
2 stops12h 39m
Deal found 9/18![Frontier logo]()
$296
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:14 am -
1 stop5h 46m
Wed 12/99:52 am -
Nonstop2h 32m
Deal found 9/16![American Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:09 pm -
1 stop7h 13m
Sat 10/315:05 pm -
1 stop5h 28m
Deal found 9/15![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:25 am -
Nonstop2h 50m
Sat 12/510:00 am -
Nonstop2h 20m
Deal found 9/14![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 10/298:29 am -
1 stop5h 35m
Tue 11/311:30 am -
2 stops9h 00m
Deal found 9/16![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:27 am -
1 stop5h 48m
Sat 10/104:00 pm -
1 stop7h 57m
Deal found 9/15![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 12/35:30 am -
1 stop6h 43m
Sat 12/54:00 pm -
1 stop4h 49m
Deal found 9/16![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:34 am -
1 stop5h 31m
Fri 11/65:44 pm -
Nonstop2h 33m
Deal found 9/15![United Airlines logo]()
$348
This CheapOair deal was found by Cheapflights users on 9/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/273:04 pm -
1 stop9h 20m
Mon 11/307:42 pm -
1 stop28h 30m
Deal found 9/18![Frontier logo]()
$395
This Delta deal was found by Cheapflights users on 9/16. 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.
Sat 11/143:30 pm -
1 stop5h 08m
Tue 11/176:45 pm -
1 stop4h 33m
Deal found 9/16![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:59 am -
2 stops13h 27m
Mon 11/97:30 am -
2 stops14h 10m
Deal found 9/15![United Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:16 am -
Nonstop2h 38m
Sat 10/105:49 pm -
Nonstop2h 31m
Deal found 9/15![United Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/82:44 pm -
2 stops9h 11m
Wed 12/96:58 pm -
1 stop4h 54m
Deal found 9/17![Delta logo]()
$296
This KAYAK deal was found by Cheapflights users on 9/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:43 pm -
1 stop4h 57m
Wed 10/213:03 pm -
1 stop5h 07m
Deal found 9/18![American Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 12/49:56 am -
1 stop6h 09m
Sat 12/56:00 am -
2 stops10h 43m
Deal found 9/16![Delta logo]()
$300
This United Airlines deal was found by Cheapflights users on 9/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:40 am -
Nonstop1h 59m
Fri 10/236:25 pm -
Nonstop2h 10m
Deal found 9/18![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:30 am -
Nonstop2h 20m
Sat 10/38:04 pm -
Nonstop2h 04m
Deal found 9/14![American Airlines logo]()
$543
This Delta deal was found by Cheapflights users on 9/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:27 am -
1 stop6h 37m
Mon 10/126:57 pm -
1 stop5h 00m
Deal found 9/17![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:30 pm -
Nonstop2h 40m
Sun 11/17:00 am -
Nonstop2h 18m
Deal found 9/15![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:29 pm -
2 stops9h 30m
Tue 10/209:50 am -
2 stops11h 31m
Deal found 9/15![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:19 pm -
1 stop8h 03m
Thu 11/125:10 am -
1 stop7h 41m
Deal found 9/18![Delta logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 11/225:28 pm -
1 stop5h 39m
Tue 12/16:25 pm -
1 stop4h 34m
Deal found 9/16![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/171:02 pm -
1 stop5h 52m
Mon 12/216:00 am -
1 stop5h 03m
Deal found 9/15![Delta logo]()
$334
This deal was found by Cheapflights users on 9/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:40 am -
Nonstop2h 19m
Wed 12/910:15 am -
Nonstop2h 10m
Deal found 9/19![United Airlines logo]()
$397
This KAYAK deal was found by Cheapflights users on 9/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:28 pm -
1 stop5h 08m
Thu 11/125:30 am -
1 stop5h 45m
Deal found 9/17![Delta logo]()
$338
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:30 pm -
Nonstop2h 30m
Sun 10/111:17 pm -
Nonstop2h 26m
Deal found 9/15![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:45 pm -
2 stops10h 37m
Wed 10/286:45 am -
2 stops12h 26m
Deal found 9/18![Delta logo]()
$339
Last-minute flights from Illinois to OklahomaDiscover last-minute flight deals from Illinois to Oklahoma. Data last updated September 19, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Oklahoma. Data last updated September 19, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:25 am -
1 stop12h 18m
Tue 10/1312:12 pm -
Nonstop2h 23m
Deal found 9/17![Frontier logo]()
$197
This Super.com deal was found by Cheapflights users on 9/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:12 pm -
Nonstop2h 33m
Sat 10/1012:12 pm -
Nonstop2h 23m
Deal found 9/16![Frontier logo]()
$196
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:53 pm -
Nonstop2h 01m
Mon 10/123:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$153
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:53 pm -
Nonstop2h 01m
Sun 10/113:02 pm -
Nonstop1h 56m
Deal found 9/17![Frontier logo]()
$158
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Wed 10/146:35 pm -
1 stop12h 25m
Wed 10/215:30 am -
2 stops12h 10m
Deal found 9/16![Frontier logo]()
$155
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:53 pm -
Nonstop2h 01m
Sun 10/183:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$150
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:53 pm -
Nonstop2h 01m
Mon 10/193:02 pm -
Nonstop1h 56m
Deal found 9/17![Frontier logo]()
$148
This Expedia deal was found by Cheapflights users on 9/15. 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.
Fri 10/166:35 pm -
1 stop12h 33m
Sun 10/183:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 10/166:35 pm -
1 stop12h 33m
Fri 10/233:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/236:35 pm -
1 stop12h 33m
Sun 10/253:02 pm -
Nonstop1h 56m
Deal found 9/15![Frontier logo]()
$146
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:53 pm -
Nonstop2h 01m
Mon 10/263:02 pm -
Nonstop1h 56m
Deal found 9/17![Frontier logo]()
$152
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Sat 10/246:21 am -
1 stop13h 44m
Mon 10/269:54 am -
Nonstop2h 23m
Deal found 9/16![Frontier logo]()
$198
One-way flights from Illinois to OklahomaSearch for one-way flight options from Illinois to Oklahoma. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
Search for one-way flight options from Illinois to Oklahoma. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
This Mytrip deal was found by Cheapflights users on 9/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:44 pm -
1 stop12h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$50
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/146:35 pm -
1 stop12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:02 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$54
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Mon 10/266:35 pm -
1 stop12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 11/166:44 pm -
1 stop17h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:09 am -
Nonstop2h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/166:35 pm -
1 stop12h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$64
This Trip.com deal was found by Cheapflights users on 9/17. 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 Trip.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 9/17![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 10/136:30 am -
1 stop13h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:30 am -
1 stop12h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 9/19. 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 12/157:25 am -
1 stop12h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
1 stop13h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$96
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 September 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $144 (CheapOair) |
One-way from | $50 (Mytrip) |
Popular in | August |
Cheapest in | September |
Average price | $331 |
Good round-trip deal | $256 or less |
Good one-way deal | $139 or less |
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 7,457,451 searches. Data last updated September 19, 2026.
Use the filters below to find and compare flights from Illinois to Oklahoma that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisDallas
STL Lambert-St Louis - DFW Dallas/Fort Worth
STLDFW
Lambert-St Louis
Tue 10/13
3:12 pm-9:48 pm
1 stop6h 36m
Dallas/Fort Worth
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$111
ChicagoTulsa
ORD Chicago O'Hare Intl - TUL Tulsa
ORDTUL
Chicago O'Hare Intl
Wed 12/16
12:55 pm-3:09 pm
Nonstop2h 14m
Tulsa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$120
ChicagoTulsa
ORD Chicago O'Hare Intl - TUL Tulsa
ORDTUL
Chicago O'Hare Intl
Tue 10/20
8:45 am-11:03 am
Nonstop2h 18m
Tulsa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$120
St. LouisDallas
STL Lambert-St Louis - DFW Dallas/Fort Worth
STLDFW
Lambert-St Louis
Thu 11/12
7:18 pm-12:17 am
1 stop4h 59m
Dallas/Fort Worth
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$125
ChicagoDallas
ORD Chicago O'Hare Intl - DFW Dallas/Fort Worth
ORDDFW
Chicago O'Hare Intl
Sat 10/10
6:20 am-1:33 pm
1 stop7h 13m
Dallas/Fort Worth
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$127
ChicagoOklahoma City
ORD Chicago O'Hare Intl - OKC Oklahoma City Will Rogers World
ORDOKC
Chicago O'Hare Intl
Tue 10/13
8:10 pm-10:31 pm
Nonstop2h 21m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
ChicagoOklahoma City
ORD Chicago O'Hare Intl - OKC Oklahoma City Will Rogers World
ORDOKC
Chicago O'Hare Intl
Wed 10/14
8:10 pm-10:31 pm
Nonstop2h 21m
Oklahoma City Will Rogers World
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
ChicagoTulsa
ORD Chicago O'Hare Intl - TUL Tulsa
ORDTUL
Chicago O'Hare Intl
Tue 12/15
5:30 am-12:13 pm
1 stop6h 43m
Tulsa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
ChicagoTulsa
ORD Chicago O'Hare Intl - TUL Tulsa
ORDTUL
Chicago O'Hare Intl
Wed 12/16
8:04 am-4:05 pm
1 stop8h 01m
Tulsa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
ChicagoTulsa
ORD Chicago O'Hare Intl - TUL Tulsa
ORDTUL
Chicago O'Hare Intl
Sat 12/12
6:49 am-12:13 pm
1 stop5h 24m
Tulsa
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
Showing 1-10 of 60 resultsSorted by cheapest first
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.
STL-DFW
MDW-DFW
ORD-DFW
ORD-OKC
ORD-TUL
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
USIL-USOK
STL-DFW
MDW-DFW
ORD-DFW
ORD-OKC
What is the cheapest month to book a flight from Illinois to Oklahoma?
Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $345). Flying from Illinois to Oklahoma in August is currently the most expensive (average of $483). 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 September 19, 2026.
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 evening tend to be the most expensive. A flight at noon could potentially save you up to 30% on airfare.
Weekly flight availability from Illinois to Oklahoma
Explore weekly flight availability from Illinois to Oklahoma. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 19, 2026.
The most flights from USIL to USOK are scheduled on a Friday (25 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).
How much does it cost to fly round-trip from Illinois to Oklahoma?
Airfare is below average for this route at the moment.
Illinois to Oklahoma flights typically cost between $282 and $434 in November.The cheapest round-trip price found within the last 5 days was $252 on Frontier (Nov 17-Nov 19).
How far ahead should I book a flight from Illinois to Oklahoma?
The best time to book flights from Illinois to Oklahoma is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 September 12, 2026.
Travelers seeking maximum savings on their Illinois to Oklahoma flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday afternoons 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 September 19, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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.
Crew
8.6
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
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.
Browse thousands of different options on Cheapflights for your next trip
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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.
Complete your trip
Complete your trip to Oklahoma by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Oklahoma by cabin class
Find flights from Illinois to Oklahoma, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Oklahoma flights
Browse other Illinois and Oklahoma flight options. Last updated on September 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Oklahoma
Find the right flight back to Illinois after your stay in Oklahoma
Illinois to Oklahoma flights
Consider these flights traveling from Illinois to Oklahoma.
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 7,457,451 searches. Data last updated September 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$252 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$201 | Average$388 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$245 | Average$388 | FlexibilityNo cancel fee | On-time63% |