$99+ Cheap flights from Illinois to Oklahoma City (OKC)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OKC
Sep 4 — Sep 111
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Oklahoma City with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Oklahoma City
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Cheapest flights from Illinois to Oklahoma CityExplore the most affordable flight options available from Illinois to Oklahoma City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2026.
Explore the most affordable flight options available from Illinois to Oklahoma City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2026.
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:06 am -
1 stop25h 55m
Mon 10/121:56 pm -
1 stop20h 05m
Deal found 7/31![Frontier logo]()
$192
This Trip.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am -
1 stop13h 05m
Wed 9/238:30 pm -
1 stop27h 53m
Deal found 8/2![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/296:45 pm -
1 stop24h 15m
Sat 9/58:20 pm -
1 stop22h 53m
Deal found 8/1![Frontier logo]()
$196
This Trip.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/262:41 pm -
1 stop24h 18m
Mon 8/313:44 pm -
1 stop21h 52m
Deal found 8/3![Frontier logo]()
$198
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:21 pm -
1 stop24h 16m
Wed 9/168:30 pm -
1 stop27h 53m
Deal found 8/4![Frontier logo]()
$199
This CheapOair deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Mon 9/218:10 pm -
1 stop23h 25m
Tue 9/298:30 pm -
1 stop22h 47m
Deal found 8/3![Frontier logo]()
$204
This CheapOair deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
1 stop23h 25m
Fri 9/252:25 pm -
1 stop21h 07m
Deal found 8/3![Frontier logo]()
$221
This Trip.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:30 am -
1 stop13h 05m
Sat 9/268:30 pm -
1 stop27h 53m
Deal found 8/5![Frontier logo]()
$226
This iWofly deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:30 am -
1 stop13h 04m
Mon 9/218:30 pm -
1 stop27h 53m
Deal found 7/31![Frontier logo]()
$227
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:41 pm -
1 stop24h 18m
Wed 9/98:30 pm -
1 stop27h 53m
Deal found 8/4![Frontier logo]()
$229
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/188:10 pm -
1 stop23h 25m
Mon 9/212:25 pm -
1 stop21h 07m
Deal found 8/1![Frontier logo]()
$233
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:40 pm -
1 stop14h 21m
Sun 11/1512:28 pm -
1 stop23h 29m
Deal found 7/31![Frontier logo]()
$237
Best flights from Illinois to Oklahoma CityDiscover carefully curated flight deals from Illinois to Oklahoma City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
Discover carefully curated flight deals from Illinois to Oklahoma City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/318:35 pm -
Nonstop2h 21m
Mon 9/71:30 pm -
Nonstop2h 21m
Deal found 8/3![United Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:25 pm -
Nonstop2h 10m
Sat 9/1911:30 am -
Nonstop2h 10m
Deal found 8/4![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/316:40 am -
1 stop5h 44m
Tue 9/11:32 pm -
1 stop7h 23m
Deal found 8/1![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/204:43 pm -
1 stop7h 16m
Thu 8/276:14 am -
1 stop5h 36m
Deal found 8/4![American Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/178:55 pm -
Nonstop2h 05m
Mon 9/215:15 am -
Nonstop1h 50m
Deal found 8/1![Southwest logo]()
$261
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:25 pm -
Nonstop2h 05m
Tue 9/15:45 am -
Nonstop2h 00m
Deal found 7/31![Southwest logo]()
$261
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
1 stop5h 50m
Sun 9/64:00 pm -
2 stops6h 55m
Deal found 8/2![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/293:45 pm -
Nonstop2h 40m
Sat 10/311:18 pm -
Nonstop2h 20m
Deal found 8/2![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/310:35 am -
Nonstop2h 00m
Sun 9/64:00 pm -
2 stops6h 55m
Deal found 8/1![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 10/2711:00 am -
1 stop5h 12m
Thu 10/296:00 am -
1 stop6h 38m
Deal found 8/4![United Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:15 pm -
1 stop4h 40m
Wed 8/267:15 am -
1 stop4h 25m
Deal found 7/31![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/2611:10 am -
2 stops7h 20m
Mon 8/313:30 pm -
Nonstop1h 50m
Deal found 8/3![Southwest logo]()
$276
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/283:35 pm -
Nonstop2h 30m
Sun 8/309:15 am -
Nonstop2h 35m
Deal found 8/4![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/1610:10 am -
2 stops5h 55m
Wed 9/235:45 am -
Nonstop2h 00m
Deal found 8/2![Southwest logo]()
$276
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/295:45 am -
1 stop6h 49m
Sun 8/301:30 pm -
1 stop5h 33m
Deal found 8/3![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Sun 9/66:00 am -
1 stop5h 00m
Mon 9/1411:42 am -
2 stops12h 17m
Deal found 8/3![Delta logo]()
$533
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/258:45 am -
1 stop7h 24m
Sat 8/295:45 pm -
1 stop4h 58m
Deal found 8/1![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/135:30 am -
1 stop6h 54m
Sun 8/167:01 am -
1 stop7h 08m
Deal found 8/4![Delta logo]()
$541
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/288:30 am -
1 stop5h 00m
Thu 10/17:55 am -
2 stops6h 25m
Deal found 8/2![Southwest logo]()
$320
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/41:30 pm -
Nonstop2h 30m
Sun 10/111:17 pm -
Nonstop2h 26m
Deal found 7/31![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/178:55 am -
2 stops11h 23m
Tue 9/225:22 pm -
1 stop6h 37m
Deal found 8/2![Delta logo]()
$545
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/198:25 am -
1 stop6h 55m
Sat 8/225:50 am -
2 stops7h 25m
Deal found 8/3![Southwest logo]()
$328
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/18:29 am -
2 stops7h 40m
Mon 9/71:30 pm -
1 stop5h 33m
Deal found 8/4![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/265:30 am -
1 stop5h 31m
Sat 10/38:00 am -
2 stops8h 59m
Deal found 8/5![Delta logo]()
$545
This Southwest deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/116:15 pm -
1 stop4h 45m
Sun 9/1311:40 am -
2 stops8h 15m
Deal found 8/3![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/203:35 pm -
1 stop7h 21m
Thu 8/271:38 pm -
2 stops9h 05m
Deal found 8/4![United Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/11:46 pm -
2 stops8h 52m
Fri 9/41:51 pm -
2 stops10h 08m
Deal found 8/3![American Airlines logo]()
$853
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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.
Sun 8/306:15 pm -
1 stop4h 25m
Sun 9/67:15 am -
2 stops7h 15m
Deal found 8/1![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:41 am -
1 stop5h 25m
Wed 8/199:15 am -
1 stop5h 42m
Deal found 7/31![United Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:05 pm -
2 stops7h 05m
Sun 9/207:00 pm -
1 stop4h 30m
Deal found 8/1![Southwest logo]()
$347
Last-minute flights from Illinois to Oklahoma CityDiscover last-minute flight deals from Illinois to Oklahoma City. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Oklahoma City. Data last updated August 5, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/262:41 pm -
1 stop24h 18m
Mon 8/313:44 pm -
1 stop21h 52m
Deal found 8/3![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/296:45 pm -
1 stop24h 15m
Sat 9/58:20 pm -
1 stop22h 53m
Deal found 8/1![Frontier logo]()
$196
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:41 pm -
1 stop24h 18m
Wed 9/98:30 pm -
1 stop27h 53m
Deal found 8/4![Frontier logo]()
$229
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:21 pm -
1 stop24h 16m
Wed 9/168:30 pm -
1 stop27h 53m
Deal found 8/4![Frontier logo]()
$199
This iWofly deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:30 am -
1 stop13h 04m
Mon 9/218:30 pm -
1 stop27h 53m
Deal found 7/31![Frontier logo]()
$227
This Trip.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am -
1 stop13h 05m
Wed 9/238:30 pm -
1 stop27h 53m
Deal found 8/2![Frontier logo]()
$196
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/178:55 pm -
1 stop16h 42m
Mon 9/212:25 pm -
1 stop15h 13m
Deal found 8/1![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/178:55 pm -
1 stop16h 42m
Sun 9/208:30 pm -
1 stop27h 53m
Deal found 8/1![Frontier logo]()
$237
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/188:10 pm -
1 stop23h 25m
Mon 9/212:25 pm -
1 stop21h 07m
Deal found 8/1![Frontier logo]()
$233
This Trip.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:30 am -
1 stop13h 05m
Sat 9/268:30 pm -
1 stop27h 53m
Deal found 8/5![Frontier logo]()
$226
This CheapOair deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Mon 9/218:10 pm -
1 stop23h 25m
Tue 9/298:30 pm -
1 stop22h 47m
Deal found 8/3![Frontier logo]()
$204
This CheapOair deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
1 stop23h 25m
Fri 9/252:25 pm -
1 stop21h 07m
Deal found 8/3![Frontier logo]()
$221
One-way flights from Illinois to Oklahoma CitySearch for one-way flight options from Illinois to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
Search for one-way flight options from Illinois to Oklahoma City. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/22:41 pm -
1 stop24h 18m
Deal found 8/1![Frontier logo]()
$99
This Trip.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 pm -
1 stop16h 42m
Deal found 8/1![Frontier logo]()
$100
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:06 am -
1 stop26h 55m
Deal found 8/1![Frontier logo]()
$102
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:45 pm -
1 stop24h 15m
Deal found 7/31![Frontier logo]()
$108
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:45 am -
Nonstop2h 05m
Deal found 7/31![Southwest logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:10 pm -
1 stop16h 51m
Deal found 8/2![Frontier logo]()
$124
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:30 am -
1 stop5h 55m
Deal found 8/2![Delta logo]()
$129
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:10 pm -
1 stop23h 29m
Deal found 7/31![Frontier logo]()
$129
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/319:25 am -
Nonstop2h 22m
Deal found 8/1![United Airlines logo]()
$131
This Southwest deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/210:15 am -
Nonstop2h 05m
Deal found 8/2![Southwest logo]()
$131
This CheapOair deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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.
Mon 10/2611:06 am -
1 stop25h 55m
Deal found 8/1![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/296:30 am -
1 stop13h 05m
Deal found 8/2![Frontier logo]()
$133
Find flight deals from Illinois to Oklahoma City
Keep the following information in mind while searching for Illinois to Oklahoma City flight deals. Data was last updated August 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (CheapOair) |
One-way from | $99 (Trip.com) |
Popular in | July |
Cheapest in | September |
Average price | $415 |
Good round-trip deal | $331 or less |
Good one-way deal | $143 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Oklahoma City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Illinois to Oklahoma City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoOklahoma City
ORD Chicago O'Hare Intl - OKC Oklahoma City Will Rogers World
ORDOKC
Chicago O'Hare Intl
Mon 8/31
8:35 pm-10:56 pm
Nonstop2h 21m
Oklahoma City Will Rogers World
Mon 9/7
1:30 pm-3:51 pm
Nonstop2h 21m
$261
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Sat 9/12
6:25 pm-8:35 pm
Nonstop2h 10m
Oklahoma City Will Rogers World
Sat 9/19
11:30 am-1:40 pm
Nonstop2h 10m
$261
Quickest round-trip
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Thu 9/17
8:55 pm-11:00 pm
Nonstop2h 05m
Oklahoma City Will Rogers World
Mon 9/21
5:15 am-7:05 am
Nonstop1h 50m
$261
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Sat 8/29
6:25 pm-8:30 pm
Nonstop2h 05m
Oklahoma City Will Rogers World
Tue 9/1
5:45 am-7:45 am
Nonstop2h 00m
$261
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Sat 9/5
2:25 pm-8:15 pm
1 stop5h 50m
Oklahoma City Will Rogers World
Sun 9/6
4:00 pm-10:55 pm
2 stops6h 55m
$262
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Thu 9/3
10:35 am-12:35 pm
Nonstop2h 00m
Oklahoma City Will Rogers World
Sun 9/6
4:00 pm-10:55 pm
2 stops6h 55m
$264
St. LouisOklahoma City
STL Lambert-St Louis - OKC Oklahoma City Will Rogers World
STLOKC
Lambert-St Louis
Mon 8/24
6:15 pm-10:55 pm
1 stop4h 40m
Oklahoma City Will Rogers World
Wed 8/26
7:15 am-11:40 am
1 stop4h 25m
$275
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Wed 8/26
11:10 am-6:30 pm
2 stops7h 20m
Oklahoma City Will Rogers World
Mon 8/31
3:30 pm-5:20 pm
Nonstop1h 50m
$276
ChicagoOklahoma City
MDW Chicago Midway - OKC Oklahoma City Will Rogers World
MDWOKC
Chicago Midway
Wed 9/16
10:10 am-4:05 pm
2 stops5h 55m
Oklahoma City Will Rogers World
Wed 9/23
5:45 am-7:45 am
Nonstop2h 00m
$276
ChicagoOklahoma City
ORD Chicago O'Hare Intl - OKC Oklahoma City Will Rogers World
ORDOKC
Chicago O'Hare Intl
Mon 8/31
6:40 am-12:24 pm
1 stop5h 44m
Oklahoma City Will Rogers World
Tue 9/1
1:32 pm-8:55 pm
1 stop7h 23m
$281
Showing 1-10 of 58 resultsSorted by cheapest first
Best time to book a flight from Illinois to Oklahoma City
Have a flexible travel schedule? Discover the best time to fly to Oklahoma City from Illinois with our price prediction graph.
ORD-OKC
STL-OKC
MDW-OKC
PIA-OKC
BMI-OKC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Oklahoma City
USIL-OKC
ORD-OKC
STL-OKC
MDW-OKC
PIA-OKC
What is the cheapest month to book a flight from Illinois to Oklahoma City?
Currently, January is the cheapest month in which you can book a flight from Illinois to Oklahoma City (average of $340). Flying from Illinois to Oklahoma City in July is currently the most expensive (average of $497). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to OKC?
Find hourly flight availability from Illinois to Oklahoma City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 5, 2026.
When flying from Illinois to Oklahoma City, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 16% versus a flight in the evening.
Weekly flight availability from Illinois to Oklahoma City
Explore weekly flight availability from Illinois to Oklahoma City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 5, 2026.
The most flights from USIL to OKC are scheduled on a Tuesday (30 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from Illinois to Oklahoma City?
Airfare is below average for this route at the moment.
Illinois to Oklahoma City flights typically cost between $338 and $407 in October.The cheapest round-trip price found within the last 5 days was $192 on Frontier (Oct 8-Oct 12).
How far ahead should I book a flight from Illinois to Oklahoma City?
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Oklahoma City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Illinois to Oklahoma City?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Oklahoma City. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Illinois to Oklahoma City flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Oklahoma City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Oklahoma City?
Book flights to Oklahoma City if you plan to visit one of these locationsYukon
Moore
Norman
Edmond
Shawnee
Ada
Midwest City
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Oklahoma City
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Complete your trip
Complete your trip to Oklahoma City by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Oklahoma City by cabin class
Find flights from Illinois to Oklahoma City, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Oklahoma City
Explore flights to Oklahoma City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 5, 2026.
Illinois and Oklahoma City flights
Browse other Illinois and Oklahoma City flight options. Last updated on August 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Oklahoma City flights
Consider these flights traveling from Illinois to Oklahoma City.
Top 4 airlines flying from Illinois to Oklahoma City
Discover the top 4 airlines that operate flights from Illinois to Oklahoma City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$217 | Average$373 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$237 | Average$457 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$413 | FlexibilityNo cancel fee | On-time71% |