$41+ Cheap flights from Illinois to Oklahoma
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Jul 12 — Jul 191
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Oklahoma with Cheapflights
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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 June 12, 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 June 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 8/23:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Tue 8/2512:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$108
This Frontier deal was found by Cheapflights users on 6/8. 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.
Tue 8/43:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Thu 8/2712:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$109
This Frontier deal was found by Cheapflights users on 6/8. 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 8/63:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Tue 8/2512:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/223:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Mon 8/2412:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/10![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 8/23:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Sat 8/2912:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 6/8. 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.
Tue 8/43:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Fri 8/2812:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:19 pm
STL
- DFW
Nonstop1h 57m
Frontier
Tue 7/71:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/11![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Thu 8/203:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Mon 8/2412:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/43:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Sat 8/294:16 pm
DFW
- STL
1 stop25h 14m
Frontier
Deal found 6/8![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 6/7. 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.
Sat 8/159:20 am
ORD
- DFW
Nonstop2h 52m
Frontier
Sat 8/221:19 pm
DFW
- ORD
Nonstop2h 51m
Frontier
Deal found 6/7![Frontier logo]()
$137
This Super.com deal was found by Cheapflights users on 6/7. 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.
Sat 7/256:41 pm
MDW
- DFW
Nonstop2h 40m
Frontier
Tue 7/282:30 pm
DFW
- MDW
Nonstop2h 21m
Frontier
Deal found 6/7![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 6/8. 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 8/63:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Thu 8/2712:49 pm
DFW
- STL
Nonstop1h 59m
Frontier
Deal found 6/8![Frontier logo]()
$139
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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:51 pm
MDW
- DFW
2 stops10h 08m
Delta
Sat 8/1511:15 am
DFW
- MDW
1 stop7h 18m
Delta
Deal found 6/11![Delta logo]()
$200
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/88:45 am
ORD
- TUL
Nonstop2h 18m
United Airlines
Wed 7/157:15 am
TUL
- ORD
Nonstop2h 02m
United Airlines
Deal found 6/10![United Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/57:10 pm
STL
- DFW
1 stop15h 47m
Frontier
Sun 7/1210:00 am
DFW
- STL
1 stop7h 37m
Frontier
Deal found 6/7![Frontier logo]()
$262
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:30 pm
ORD
- XNA
Nonstop1h 56m
American Airlines
Sat 7/1111:59 am
XNA
- ORD
1 stop7h 45m
American Airlines
Deal found 6/12![American Airlines logo]()
$299
This Sun Country Air deal was found by Cheapflights users on 6/9. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:05 pm
ORD
- TUL
1 stop16h 11m
Sun Country Air
Sun 7/128:06 pm
TUL
- ORD
1 stop21h 23m
Sun Country Air
Deal found 6/9![Sun Country Air logo]()
$336
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:52 pm
STL
- DFW
1 stop7h 58m
Delta
Thu 8/136:45 am
DFW
- STL
1 stop5h 01m
Delta
Deal found 6/11![Delta logo]()
$209
This Delta deal was found by Cheapflights users on 6/9. 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 8/286:00 am
STL
- DFW
1 stop5h 16m
Delta
Tue 9/16:45 am
DFW
- STL
1 stop7h 48m
Delta
Deal found 6/9![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 9/1710:00 am
STL
- DFW
1 stop7h 20m
Delta
Mon 9/216:20 pm
DFW
- STL
1 stop5h 00m
Delta
Deal found 6/8![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 6/7. 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 11/216:15 am
STL
- DFW
1 stop5h 21m
United Airlines
Wed 11/259:00 am
DFW
- STL
1 stop5h 18m
United Airlines
Deal found 6/7![United Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:20 pm
ORD
- TUL
Nonstop2h 05m
United Airlines
Tue 7/77:15 am
TUL
- ORD
Nonstop2h 02m
United Airlines
Deal found 6/11![United Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:10 pm
MDW
- DFW
1 stop6h 49m
Delta
Fri 8/211:24 pm
DFW
- MDW
2 stops9h 12m
Delta
Deal found 6/11![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 8/227:25 am
STL
- DFW
2 stops10h 20m
United Airlines
Mon 8/241:48 pm
DFW
- STL
1 stop6h 58m
United Airlines
Deal found 6/10![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/114:43 pm
PIA
- DFW
Nonstop2h 18m
American Airlines
Sun 7/129:40 am
DFW
- PIA
Nonstop2h 15m
American Airlines
Deal found 6/7![American Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 6/9. 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 10/68:00 pm
ORD
- TUL
Nonstop1h 59m
United Airlines
Sat 10/106:00 am
TUL
- ORD
Nonstop2h 00m
United Airlines
Deal found 6/9![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:10 pm
MDW
- XNA
1 stop6h 47m
Delta
Mon 8/318:10 am
XNA
- MDW
1 stop7h 34m
Delta
Deal found 6/11![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/7. 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 11/45:18 am
ORD
- OKC
1 stop6h 02m
American Airlines
Sun 11/88:20 pm
OKC
- ORD
1 stop4h 08m
American Airlines
Deal found 6/7![American Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 6/10. 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.
Fri 8/2112:46 pm
MDW
- XNA
1 stop5h 25m
Delta
Sun 8/2311:45 am
XNA
- MDW
1 stop6h 16m
Delta
Deal found 6/10![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:25 am
STL
- DFW
2 stops8h 40m
United Airlines
Fri 8/145:40 pm
DFW
- STL
1 stop5h 19m
United Airlines
Deal found 6/11![United Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:40 am
ORD
- XNA
1 stop6h 32m
Delta
Sun 9/67:10 am
XNA
- ORD
1 stop5h 30m
Delta
Deal found 6/11![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:29 pm
ORD
- OKC
Nonstop2h 20m
American Airlines
Fri 8/74:38 pm
OKC
- ORD
1 stop4h 38m
American Airlines
Deal found 6/7![American Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:35 pm
ORD
- OKC
Nonstop2h 31m
United Airlines
Wed 8/265:45 pm
OKC
- ORD
Nonstop2h 31m
United Airlines
Deal found 6/11![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:30 pm
STL
- DFW
1 stop7h 56m
Delta
Sun 11/18:10 am
DFW
- STL
1 stop6h 30m
Delta
Deal found 6/11![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 10/35:02 am
BMI
- DFW
1 stop5h 40m
American Airlines
Tue 10/61:30 pm
DFW
- BMI
Nonstop2h 04m
American Airlines
Deal found 6/11![American Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:30 pm
ORD
- XNA
Nonstop2h 00m
United Airlines
Sun 9/67:30 am
XNA
- ORD
Nonstop2h 07m
United Airlines
Deal found 6/11![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/7. 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 7/1711:05 am
MDW
- XNA
1 stop5h 38m
Delta
Tue 7/2111:50 am
XNA
- MDW
1 stop6h 28m
Delta
Deal found 6/7![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 9/19:30 pm
ORD
- XNA
Nonstop2h 00m
United Airlines
Sat 9/52:55 pm
XNA
- ORD
Nonstop2h 06m
United Airlines
Deal found 6/8![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 6/255:00 am
ORD
- TUL
1 stop7h 20m
American Airlines
Sun 6/286:45 am
TUL
- ORD
Nonstop2h 12m
American Airlines
Deal found 6/11![American Airlines logo]()
$477
This Delta deal was found by Cheapflights users on 6/9. 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 8/1412:46 pm
MDW
- XNA
1 stop5h 25m
Delta
Sun 8/236:00 am
XNA
- MDW
1 stop5h 51m
Delta
Deal found 6/9![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/113:55 pm
ORD
- XNA
Nonstop2h 02m
United Airlines
Sun 7/126:37 pm
XNA
- ORD
Nonstop2h 03m
United Airlines
Deal found 6/11![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 7/176:30 am
ORD
- XNA
1 stop4h 38m
Delta
Mon 7/205:11 pm
XNA
- ORD
1 stop4h 41m
Delta
Deal found 6/8![Delta logo]()
$299
Last-minute flights from Illinois to OklahomaDiscover last-minute flight deals from Illinois to Oklahoma. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Oklahoma. Data last updated June 12, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 6/7. 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.
Wed 6/247:03 pm
STL
- DFW
Nonstop1h 57m
Frontier
Sun 6/284:21 pm
DFW
- STL
Nonstop1h 57m
Frontier
Deal found 6/7![Frontier logo]()
$147
This Frontier deal was found by Cheapflights users on 6/7. 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.
Sat 6/277:19 pm
STL
- DFW
Nonstop1h 57m
Frontier
Sun 6/284:21 pm
DFW
- STL
Nonstop1h 57m
Frontier
Deal found 6/7![Frontier logo]()
$148
This deal was found by Cheapflights users on 6/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:03 pm
STL
- DFW
Nonstop1h 57m
Frontier
Tue 7/71:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/10![Frontier logo]()
$152
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:19 pm
STL
- DFW
Nonstop1h 57m
Frontier
Tue 7/71:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/11![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Tue 7/141:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/10![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/113:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Tue 7/211:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/11![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 6/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:28 am
ORD
- DFW
Nonstop2h 52m
Frontier
Thu 8/131:17 pm
DFW
- ORD
Nonstop2h 43m
Frontier
Deal found 6/12![Frontier logo]()
$152
This Super.com deal was found by Cheapflights users on 6/7. 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.
Sat 7/256:41 pm
MDW
- DFW
Nonstop2h 40m
Frontier
Tue 7/282:30 pm
DFW
- MDW
Nonstop2h 21m
Frontier
Deal found 6/7![Frontier logo]()
$137
This Priceline deal was found by Cheapflights users on 6/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/253:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Tue 8/41:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/8![Frontier logo]()
$142
This Flightnetwork deal was found by Cheapflights users on 6/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/253:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Sat 8/11:00 pm
DFW
- STL
Nonstop1h 56m
Frontier
Deal found 6/10![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 6/8. 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.
Wed 7/294:45 pm
MDW
- DFW
Nonstop2h 35m
Frontier
Tue 8/42:30 pm
DFW
- MDW
Nonstop2h 21m
Frontier
Deal found 6/8![Frontier logo]()
$150
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:17 pm
MDW
- DFW
Nonstop2h 37m
Frontier
Wed 8/51:30 pm
DFW
- MDW
Nonstop2h 20m
Frontier
Deal found 6/8![Frontier logo]()
$157
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 June 12, 2026.
Search for one-way flight options from Illinois to Oklahoma. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Deal found 6/10![Frontier logo]()
$41
This Frontier deal was found by Cheapflights users on 6/7. 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.
Wed 9/23:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Deal found 6/7![Frontier logo]()
$49
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Deal found 6/10![Frontier logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 8/23:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Deal found 6/8![Frontier logo]()
$58
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Deal found 6/10![Frontier logo]()
$59
This Frontier deal was found by Cheapflights users on 6/7. 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.
Sat 9/53:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Deal found 6/7![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 6/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/83:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Deal found 6/9![Frontier logo]()
$68
This Super.com deal was found by Cheapflights users on 6/7. 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 7/169:27 pm
MDW
- DFW
Nonstop2h 32m
Frontier
Deal found 6/7![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:57 pm
ORD
- OKC
1 stop20h 34m
Frontier
Deal found 6/12![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/93:41 pm
STL
- DFW
Nonstop2h 02m
Frontier
Deal found 6/10![Frontier logo]()
$74
This Super.com deal was found by Cheapflights users on 6/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:33 pm
STL
- DFW
Nonstop1h 55m
Frontier
Deal found 6/9![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 6/7. 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.
Mon 6/227:03 pm
STL
- DFW
Nonstop1h 57m
Frontier
Deal found 6/7![Frontier logo]()
$78
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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $108 (Kiwi.com) |
One-way from | $41 (Frontier) |
Popular in | June |
Cheapest in | October |
Average price | $435 |
Good round-trip deal | $394 or less |
Good one-way deal | $146 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 2,558,603 searches. Data last updated June 12, 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
ChicagoDallas
MDW - DFW
MDWDFW
Chicago Midway
Tue 8/11
1:51 pm-11:59 pm
2 stops10h 08m
Dallas/Fort Worth
Sat 8/15
11:15 am-6:33 pm
1 stop7h 18m
$200
St. LouisDallas
STL - DFW
STLDFW
Lambert-St Louis
Wed 8/12
12:52 pm-8:50 pm
1 stop7h 58m
Dallas/Fort Worth
Thu 8/13
6:45 am-11:46 am
1 stop5h 01m
$209
St. LouisDallas
STL - DFW
STLDFW
Lambert-St Louis
Fri 8/28
6:00 am-11:16 am
1 stop5h 16m
Dallas/Fort Worth
Tue 9/1
6:45 am-2:33 pm
1 stop7h 48m
$226
St. LouisDallas
STL - DFW
STLDFW
Lambert-St Louis
Thu 9/17
10:00 am-5:20 pm
1 stop7h 20m
Dallas/Fort Worth
Mon 9/21
6:20 pm-11:20 pm
1 stop5h 00m
$227
ChicagoTulsa
ORD - TUL
ORDTUL
Chicago O'Hare Intl
Wed 7/8
8:45 am-11:03 am
Nonstop2h 18m
Tulsa
Wed 7/15
7:15 am-9:17 am
Nonstop2h 02m
$237
ChicagoDallas
MDW - DFW
MDWDFW
Chicago Midway
Mon 8/17
5:10 pm-11:59 pm
1 stop6h 49m
Dallas/Fort Worth
Fri 8/21
1:24 pm-10:36 pm
2 stops9h 12m
$253
St. LouisDallas
STL - DFW
STLDFW
Lambert-St Louis
Sun 7/5
7:10 pm-10:57 am
1 stop15h 47m
Dallas/Fort Worth
Sun 7/12
10:00 am-5:37 pm
1 stop7h 37m
$262
ChicagoFayetteville
MDW - XNA
MDWXNA
Chicago Midway
Thu 8/20
5:10 pm-11:57 pm
1 stop6h 47m
Fayetteville Northwest Arkansas
Mon 8/31
8:10 am-3:44 pm
1 stop7h 34m
$289
ChicagoFayetteville
MDW - XNA
MDWXNA
Chicago Midway
Fri 8/21
12:46 pm-6:11 pm
1 stop5h 25m
Fayetteville Northwest Arkansas
Sun 8/23
11:45 am-6:01 pm
1 stop6h 16m
$289
ChicagoFayetteville
ORD - XNA
ORDXNA
Chicago O'Hare Intl
Thu 9/3
6:40 am-1:12 pm
1 stop6h 32m
Fayetteville Northwest Arkansas
Sun 9/6
7:10 am-12:40 pm
1 stop5h 30m
$289
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-OKC
ORD-TUL
BMI-DFW
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-OKC
ORD-TUL
What is the cheapest month to book a flight from Illinois to Oklahoma?
Currently, October is the cheapest month in which you can book a flight from Illinois to Oklahoma (average of $68). Flying from Illinois to Oklahoma in March is currently the most expensive (average of $248). 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 June 12, 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 23% 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 June 12, 2026.
The most flights from USIL to USOK are scheduled on a Thursday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).
How much does it cost to fly round-trip from Illinois to Oklahoma?
How far ahead should I book a flight from Illinois to Oklahoma?
The best time to book flights from Illinois to Oklahoma is 67 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 June 8, 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. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Oklahoma
Get insights into the airlines that provide service to Oklahoma. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Oklahoma. Reviews last updated June 12, 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.
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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 June 12, 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 2,558,603 searches. Data last updated June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$122 | Average$381 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$160 | Average$274 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$163 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$243 | Average$384 | FlexibilityNo cancel fee | On-time71% |