$78+ Cheap flights from Oklahoma City (OKC) to Illinois
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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — ORD
Nov 30 — Dec 71
Round-trip
1 adult, Economy
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Find cheap flights from Oklahoma City to Illinois 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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Cheapest flights from Oklahoma City to IllinoisExplore the most affordable flight options available from Oklahoma City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
Explore the most affordable flight options available from Oklahoma City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/58:29 pm -
1 stop28h 25m
Tue 12/87:25 am -
1 stop12h 08m
Deal found 10/27![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/58:29 pm -
1 stop28h 25m
Mon 12/77:25 am -
1 stop12h 08m
Deal found 10/27![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:29 pm -
1 stop28h 24m
Wed 12/27:00 am -
1 stop12h 29m
Deal found 10/29![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 12/108:29 pm -
1 stop28h 25m
Mon 12/147:25 am -
1 stop12h 08m
Deal found 10/26![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:29 pm -
2 stops14h 03m
Wed 12/97:25 am -
1 stop12h 08m
Deal found 10/29![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:29 pm -
1 stop28h 25m
Mon 12/147:25 am -
1 stop12h 08m
Deal found 10/29![Frontier logo]()
$202
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/128:29 pm -
2 stops28h 39m
Tue 12/157:25 am -
1 stop12h 08m
Deal found 10/26![Frontier logo]()
$206
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:29 pm -
2 stops32h 32m
Thu 12/107:25 am -
1 stop12h 08m
Deal found 10/29![Frontier logo]()
$210
This Southwest deal was found by Cheapflights users on 10/26. 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 11/193:45 pm -
Nonstop2h 00m
Mon 11/239:25 pm -
Nonstop2h 20m
Deal found 10/26![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:05 pm -
1 stop5h 25m
Wed 11/259:45 pm -
Nonstop2h 25m
Deal found 10/29![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 10/26. 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 12/1010:55 am -
2 stops6h 10m
Mon 12/148:50 pm -
Nonstop2h 15m
Deal found 10/26![Southwest logo]()
$270
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:00 am -
2 stops10h 05m
Wed 12/98:50 pm -
Nonstop2h 15m
Deal found 10/29![Southwest logo]()
$274
Best flights from Oklahoma City to IllinoisDiscover carefully curated flight deals from Oklahoma City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
Discover carefully curated flight deals from Oklahoma City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.
This Southwest deal was found by Cheapflights users on 10/26. 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 12/105:20 am -
Nonstop2h 00m
Mon 12/148:50 pm -
Nonstop2h 15m
Deal found 10/26![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
Nonstop2h 18m
Thu 12/31:34 pm -
Nonstop2h 40m
Deal found 10/29![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 10/27. 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 11/237:27 am -
1 stop4h 23m
Thu 11/2611:27 am -
1 stop5h 05m
Deal found 10/27![Delta logo]()
$279
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
1 stop4h 59m
Tue 11/1711:33 am -
1 stop6h 45m
Deal found 10/29![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/235:33 pm -
Nonstop2h 26m
Thu 11/269:00 am -
Nonstop2h 31m
Deal found 10/28![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:00 am -
Nonstop1h 55m
Mon 12/148:50 pm -
Nonstop2h 15m
Deal found 10/29![Southwest logo]()
$279
This Delta deal was found by Cheapflights users on 10/26. 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 12/25:25 pm -
1 stop5h 29m
Sat 12/511:28 am -
1 stop6h 46m
Deal found 10/26![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:09 am -
Nonstop2h 20m
Wed 12/27:55 pm -
Nonstop2h 29m
Deal found 10/29![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 10/26. 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 12/25:21 am -
1 stop7h 03m
Sat 12/55:30 am -
1 stop5h 06m
Deal found 10/26![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 10/26. 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 12/174:00 pm -
Nonstop1h 55m
Sat 12/196:55 pm -
2 stops5h 55m
Deal found 10/26![Southwest logo]()
$303
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:50 am -
2 stops8h 05m
Mon 11/239:25 pm -
Nonstop2h 20m
Deal found 10/30![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/251:27 pm -
Nonstop2h 16m
Tue 12/291:30 pm -
Nonstop2h 42m
Deal found 10/28![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 10/28. 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 12/253:30 pm -
Nonstop1h 55m
Tue 12/299:45 pm -
Nonstop2h 25m
Deal found 10/28![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1510:55 am -
2 stops6h 10m
Tue 12/227:20 pm -
1 stop5h 25m
Deal found 10/30![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:40 pm -
1 stop4h 12m
Wed 11/186:30 am -
1 stop5h 10m
Deal found 10/30![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/101:38 pm -
2 stops9h 21m
Sat 11/146:30 am -
1 stop6h 29m
Deal found 10/26![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 1/311:28 am -
1 stop4h 30m
Sun 1/1010:22 am -
2 stops10h 42m
Deal found 10/28![American Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/255:33 pm -
Nonstop2h 26m
Fri 11/274:40 pm -
Nonstop2h 40m
Deal found 10/27![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 10/26. 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 12/25:21 am -
1 stop7h 03m
Sun 12/612:34 pm -
2 stops11h 29m
Deal found 10/26![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:00 am -
Nonstop2h 18m
Sat 11/284:40 pm -
Nonstop2h 40m
Deal found 10/30![United Airlines logo]()
$391
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/127:23 pm -
1 stop5h 04m
Mon 11/166:45 am -
1 stop5h 44m
Deal found 10/28![American Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/135:33 pm -
1 stop5h 26m
Sun 11/156:30 am -
1 stop5h 10m
Deal found 10/28![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/2510:09 am -
Nonstop2h 20m
Sat 11/285:30 am -
1 stop5h 39m
Deal found 10/27![United Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/105:00 am -
2 stops8h 58m
Fri 11/133:58 pm -
1 stop4h 39m
Deal found 10/27![American Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/227:00 am -
Nonstop2h 18m
Thu 11/269:00 am -
Nonstop2h 31m
Deal found 10/27![United Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 10/27. 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 11/105:25 pm -
1 stop5h 06m
Fri 11/134:28 pm -
1 stop7h 31m
Deal found 10/27![Delta logo]()
$777
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:00 am -
Nonstop2h 18m
Sun 12/69:25 am -
Nonstop2h 50m
Deal found 10/29![United Airlines logo]()
$410
This United Airlines deal was found by Cheapflights users on 10/27. 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 1/99:36 am -
1 stop5h 35m
Mon 1/113:46 pm -
1 stop6h 56m
Deal found 10/27![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:36 pm -
1 stop7h 04m
Fri 12/251:30 pm -
Nonstop2h 42m
Deal found 10/29![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/237:00 am -
1 stop6h 53m
Wed 1/276:27 am -
1 stop6h 22m
Deal found 10/30![United Airlines logo]()
$434
Last-minute flights from Oklahoma City to IllinoisDiscover last-minute flight deals from Oklahoma City to Illinois. Data last updated October 31, 2026 and is based on user searches.
Discover last-minute flight deals from Oklahoma City to Illinois. Data last updated October 31, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/138:19 pm -
1 stop28h 02m
Mon 11/166:30 am -
1 stop12h 54m
Deal found 10/26![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/168:19 pm -
1 stop28h 02m
Thu 11/196:30 am -
1 stop12h 54m
Deal found 10/26![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/168:19 pm -
1 stop28h 02m
Fri 11/205:15 pm -
2 stops26h 14m
Deal found 10/27![Multiple Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/167:23 pm -
Nonstop2h 27m
Mon 11/235:00 am -
1 stop5h 34m
Deal found 10/26![American Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 10/26. 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 11/193:45 pm -
Nonstop2h 00m
Mon 11/239:25 pm -
Nonstop2h 20m
Deal found 10/26![Southwest logo]()
$259
This Frontier deal was found by Cheapflights users on 10/26. 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 11/196:44 pm -
1 stop10h 29m
Mon 11/236:40 am -
1 stop12h 49m
Deal found 10/26![Frontier logo]()
$260
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:05 pm -
1 stop5h 25m
Thu 11/263:40 pm -
Nonstop2h 15m
Deal found 10/29![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:00 pm -
Nonstop1h 55m
Wed 11/259:45 pm -
Nonstop2h 25m
Deal found 10/29![Southwest logo]()
$278
This Southwest deal was found by Cheapflights users on 10/28. 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 11/235:50 pm -
1 stop6h 20m
Thu 11/2610:20 am -
1 stop7h 30m
Deal found 10/28![Southwest logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:29 pm -
1 stop28h 24m
Wed 12/27:00 am -
1 stop12h 29m
Deal found 10/29![Frontier logo]()
$183
This Southwest deal was found by Cheapflights users on 10/27. 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.
Wed 11/254:10 pm -
Nonstop1h 55m
Wed 12/21:20 pm -
2 stops7h 25m
Deal found 10/27![Southwest logo]()
$274
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
Nonstop2h 18m
Thu 12/31:34 pm -
Nonstop2h 40m
Deal found 10/29![United Airlines logo]()
$259
One-way flights from Oklahoma City to IllinoisSearch for one-way flight options from Oklahoma City to Illinois. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
Search for one-way flight options from Oklahoma City to Illinois. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.
This Trip.com deal was found by Cheapflights users on 10/27. 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 12/168:29 pm -
1 stop27h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/88:29 pm -
1 stop28h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:29 pm -
1 stop28h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$108
This CheapOair deal was found by Cheapflights users on 10/26. 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 12/238:29 pm -
1 stop27h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$113
This Trip.com deal was found by Cheapflights users on 10/27. 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.
Tue 11/108:19 pm -
1 stop28h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:30 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$130
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/163:30 pm -
Nonstop1h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Southwest logo]()
$149
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1710:50 am -
2 stops6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Southwest logo]()
$164
This Southwest deal was found by Cheapflights users on 10/27. 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 2/195:00 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/88:29 pm -
2 stops23h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/129:37 am -
3 stops28h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Allegiant Air logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:37 am -
2 stops31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$260
Find flight deals from Oklahoma City to Illinois
Keep the following information in mind while searching for Oklahoma City to Illinois flight deals. Data was last updated October 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (Kiwi.com) |
One-way from | $78 (Trip.com) |
Popular in | June |
Cheapest in | August |
Average price | $402 |
Good round-trip deal | $402 or less |
Good one-way deal | $187 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Oklahoma City to Illinois 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 October 31, 2026.
Use the filters below to find and compare flights from Oklahoma City to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Wed 12/16
8:29 pm-12:26 am
1 stop27h 57m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$99
Quickest round-trip
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - MDW Chicago Midway
OKCMDW
Oklahoma City Will Rogers World
Tue 12/8
3:30 pm-5:25 pm
Nonstop1h 55m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Tue 12/8
2:15 pm-4:35 pm
Nonstop2h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Wed 12/23
8:29 pm-12:26 am
1 stop27h 57m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Wed 12/16
2:15 pm-4:35 pm
Nonstop2h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$130
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Fri 2/26
8:29 pm-12:26 am
1 stop27h 57m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$132
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - MDW Chicago Midway
OKCMDW
Oklahoma City Will Rogers World
Thu 12/3
5:25 pm-10:54 pm
1 stop5h 29m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$140
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Thu 12/10
1:42 pm-7:09 pm
1 stop5h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$140
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Wed 12/9
11:35 am-7:09 pm
1 stop7h 34m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$140
Oklahoma CityChicago
OKC Oklahoma City Will Rogers World - ORD Chicago O'Hare Intl
OKCORD
Oklahoma City Will Rogers World
Wed 12/23
1:37 pm-4:00 pm
Nonstop2h 23m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from Oklahoma City to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Oklahoma City with our price prediction graph.
OKC-ORD
OKC-MDW
OKC-SPI
OKC-MLI
OKC-MWA
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 Oklahoma City to Illinois
OKC-USIL
OKC-ORD
OKC-MDW
OKC-SPI
OKC-MLI
What is the cheapest month to book a flight from Oklahoma City to Illinois?
Currently, August is the cheapest month in which you can book a flight from Oklahoma City to Illinois (average of $356). Flying from Oklahoma City to Illinois in November is currently the most expensive (average of $457). 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 OKC to IL?
Find hourly flight availability from Oklahoma City to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2026.
It’s optimal to fly from Oklahoma City to Illinois in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at noon.
How much does it cost to fly round-trip from Oklahoma City to Illinois?
Airfare is below average for this route at the moment.
Oklahoma City to Illinois flights typically cost between $400 and $509 in December.The cheapest round-trip price found within the last 5 days was $140 on Frontier (Dec 5-Dec 8).
How far ahead should I book a flight from Oklahoma City to Illinois?
The best time to book flights from Oklahoma City to Illinois is 75 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 Oklahoma City to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Oklahoma City to Illinois. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Oklahoma City to Illinois flight should consider departing on Thursday at noon 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 Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated October 31, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Oklahoma City to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Oklahoma City to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Oklahoma City to Illinois
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Complete your trip
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Oklahoma City and Illinois flights
Browse other Oklahoma City and Illinois flight options. Last updated on October 31, 2026.
Popular flight searches
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Oklahoma City to Illinois flights
Consider these flights traveling from Oklahoma City to Illinois.
Top 3 airlines flying from Oklahoma City to Illinois
Discover the top 3 airlines that operate flights from Oklahoma City to Illinois. 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 October 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$248 | Average$452 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$260 | Average$400 | FlexibilityNo cancel fee | On-time69% |