$119+ Cheap flights from Raleigh (RDU) 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Nov 22 — Nov 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Raleigh 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Raleigh to Illinois
Cheapest
Best
Last-minute
One-way
Cheapest flights from Raleigh to IllinoisExplore the most affordable flight options available from Raleigh to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
Explore the most affordable flight options available from Raleigh to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:30 am -
1 stop7h 21m
Wed 11/46:30 am -
1 stop10h 08m
Deal found 10/21![Frontier logo]()
$258
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:20 pm -
1 stop8h 27m
Mon 11/96:42 pm -
2 stops20h 49m
Deal found 10/20![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1912:14 pm -
1 stop12h 58m
Mon 12/215:58 am -
1 stop7h 23m
Deal found 10/18![Frontier logo]()
$259
This Frontier deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/157:04 am -
1 stop5h 29m
Wed 12/238:35 pm -
1 stop12h 37m
Deal found 10/18![Frontier logo]()
$259
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/196:23 am -
1 stop6h 37m
Sat 12/198:13 pm -
1 stop9h 25m
Deal found 10/22![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/183:06 pm -
1 stop9h 55m
Tue 12/226:52 am -
1 stop6h 18m
Deal found 10/19![Frontier logo]()
$260
This Mytrip deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:21 pm -
2 stops9h 08m
Fri 12/1110:37 pm -
1 stop11h 49m
Deal found 10/19![Frontier logo]()
$261
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 12/16:05 am -
1 stop7h 00m
Tue 12/11:15 pm -
2 stops7h 45m
Deal found 10/20![Southwest logo]()
$261
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Sun 11/89:30 pm -
2 stops12h 44m
Tue 11/109:51 am -
2 stops11h 58m
Deal found 10/22![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/191:19 pm -
1 stop11h 28m
Fri 11/201:06 pm -
1 stop10h 21m
Deal found 10/22![Frontier logo]()
$262
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/175:30 am -
1 stop6h 29m
Mon 1/43:00 pm -
1 stop6h 48m
Deal found 10/21![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/146:10 am -
2 stops9h 40m
Wed 11/188:15 am -
2 stops9h 15m
Deal found 10/20![Southwest logo]()
$263
Best flights from Raleigh to IllinoisDiscover carefully curated flight deals from Raleigh to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
Discover carefully curated flight deals from Raleigh to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 1/61:32 pm -
2 stops11h 35m
Sat 1/92:52 pm -
1 stop6h 41m
Deal found 10/21![American Airlines logo]()
$286
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 pm -
Nonstop2h 00m
Fri 12/116:45 pm -
Nonstop1h 55m
Deal found 10/19![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
2 stops7h 45m
Sat 12/52:31 pm -
1 stop6h 08m
Deal found 10/18![United Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:05 am -
1 stop13h 48m
Wed 11/117:36 pm -
1 stop12h 24m
Deal found 10/22![Breeze Airways logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:42 am -
2 stops14h 11m
Wed 11/117:36 pm -
1 stop19h 55m
Deal found 10/22![Multiple Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:57 am -
1 stop6h 48m
Sat 11/144:28 pm -
1 stop6h 56m
Deal found 10/21![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:09 pm -
1 stop5h 07m
Sat 12/54:10 pm -
1 stop5h 17m
Deal found 10/18![American Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/128:50 am -
1 stop6h 04m
Sun 11/152:30 pm -
Nonstop2h 11m
Deal found 10/20![United Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/217:50 pm -
Nonstop2h 05m
Tue 11/247:35 am -
Nonstop1h 55m
Deal found 10/21![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:50 pm -
1 stop3h 55m
Wed 11/111:15 pm -
Nonstop1h 50m
Deal found 10/18![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/227:24 pm -
1 stop5h 43m
Sun 1/245:00 am -
1 stop5h 22m
Deal found 10/19![American Airlines logo]()
$320
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/1411:30 am -
1 stop6h 17m
Wed 12/28:00 am -
1 stop4h 57m
Deal found 10/23![United Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/18:15 pm -
1 stop4h 52m
Sat 12/55:44 am -
2 stops6h 42m
Deal found 10/21![American Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:50 pm -
1 stop5h 16m
Sun 1/35:08 pm -
1 stop6h 08m
Deal found 10/22![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:35 am -
1 stop4h 53m
Sat 1/22:21 pm -
Nonstop2h 06m
Deal found 10/21![United Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:50 pm -
1 stop5h 50m
Thu 11/191:15 pm -
Nonstop1h 50m
Deal found 10/19![Southwest logo]()
$368
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/1410:11 am -
1 stop7h 02m
Wed 12/26:00 am -
2 stops7h 43m
Deal found 10/23![American Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/205:24 pm -
Nonstop2h 36m
Sat 11/2110:32 am -
Nonstop2h 12m
Deal found 10/22![United Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2412:49 pm -
1 stop4h 28m
Fri 1/15:19 pm -
1 stop6h 22m
Deal found 10/18![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/74:20 pm -
Nonstop2h 05m
Mon 11/96:30 pm -
1 stop4h 10m
Deal found 10/22![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/2610:39 am -
1 stop5h 00m
Wed 12/21:30 pm -
2 stops9h 20m
Deal found 10/22![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/134:18 pm -
1 stop6h 49m
Fri 11/2011:25 am -
1 stop4h 17m
Deal found 10/18![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/88:00 am -
Nonstop2h 05m
Thu 11/126:45 pm -
Nonstop1h 55m
Deal found 10/18![Southwest logo]()
$401
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:05 am -
1 stop6h 48m
Sat 11/710:43 am -
1 stop4h 14m
Deal found 10/19![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/119:35 am -
1 stop5h 23m
Sat 11/142:34 pm -
2 stops7h 55m
Deal found 10/21![American Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/87:15 pm -
Nonstop2h 05m
Tue 11/106:00 am -
1 stop5h 05m
Deal found 10/22![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/46:00 am -
2 stops8h 55m
Sun 11/85:00 am -
1 stop4h 29m
Deal found 10/20![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:20 pm -
Nonstop2h 05m
Wed 11/111:15 pm -
Nonstop1h 50m
Deal found 10/19![Southwest logo]()
$406
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/236:12 am -
Nonstop2h 34m
Wed 12/302:21 pm -
Nonstop2h 06m
Deal found 10/18![United Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:25 pm -
1 stop6h 45m
Sun 12/67:45 am -
Nonstop1h 55m
Deal found 10/17![Southwest logo]()
$417
Last-minute flights from Raleigh to IllinoisDiscover last-minute flight deals from Raleigh to Illinois. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Illinois. Data last updated October 23, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:30 am -
1 stop7h 21m
Wed 11/46:30 am -
1 stop10h 08m
Deal found 10/21![Frontier logo]()
$258
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:06 am -
1 stop6h 31m
Sun 11/157:50 pm -
1 stop15h 13m
Deal found 10/20![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 am -
1 stop13h 00m
Sat 11/77:05 am -
1 stop6h 51m
Deal found 10/19![Frontier logo]()
$263
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:20 pm -
1 stop8h 27m
Mon 11/96:42 pm -
2 stops20h 49m
Deal found 10/20![Frontier logo]()
$258
This Trip.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:20 pm -
1 stop8h 27m
Fri 11/66:08 am -
1 stop4h 55m
Deal found 10/18![Frontier logo]()
$260
This FlightHub deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:42 am -
1 stop7h 09m
Sun 11/810:19 am -
1 stop11h 30m
Deal found 10/19![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:19 am -
1 stop27h 55m
Fri 11/137:50 pm -
1 stop26h 09m
Deal found 10/18![Frontier logo]()
$259
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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.
Sun 11/89:30 pm -
2 stops12h 44m
Tue 11/109:51 am -
2 stops11h 58m
Deal found 10/22![Frontier logo]()
$262
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/146:10 am -
2 stops9h 40m
Wed 11/188:15 am -
2 stops9h 15m
Deal found 10/20![Southwest logo]()
$263
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/191:19 pm -
1 stop11h 28m
Fri 11/201:06 pm -
1 stop10h 21m
Deal found 10/22![Frontier logo]()
$262
This Trip.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 am -
1 stop14h 47m
Sat 11/288:28 am -
1 stop4h 22m
Deal found 10/19![Frontier logo]()
$259
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:41 pm -
1 stop26h 06m
Sat 11/288:28 am -
1 stop4h 22m
Deal found 10/21![Frontier logo]()
$261
One-way flights from Raleigh to IllinoisSearch for one-way flight options from Raleigh to Illinois. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
Search for one-way flight options from Raleigh to Illinois. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:26 pm -
1 stop26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$119
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/75:19 pm -
1 stop8h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$120
This Priceline deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/242:27 pm -
1 stop10h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![JetBlue logo]()
$121
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/227:06 pm -
Nonstop2h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![American Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/238:46 pm -
2 stops24h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$122
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Sun 12/67:09 am -
2 stops22h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/2012:35 pm -
2 stops32h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:26 pm -
1 stop24h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/34:20 pm -
1 stop8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$124
This Super.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 10/3110:06 am -
1 stop6h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$125
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1511:10 am -
1 stop29h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:42 am -
2 stops13h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$126
Find flight deals from Raleigh to Illinois
Keep the following information in mind while searching for Raleigh to Illinois flight deals. Data was last updated October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $258 (Cheapflightsfares) |
One-way from | $119 (Kiwi.com) |
Popular in | July |
Cheapest in | December |
Average price | $320 |
Good round-trip deal | $339 or less |
Good one-way deal | $198 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Raleigh 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 23, 2026.
Use the filters below to find and compare flights from Raleigh to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
RaleighSpringfield
RDU Raleigh-Durham - SPI Springfield Capital
RDUSPI
Raleigh-Durham
Tue 11/10
5:26 pm-6:56 pm
1 stop26h 30m
Springfield Capital
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$119
RaleighChicago
RDU Raleigh-Durham - ORD Chicago O'Hare Intl
RDUORD
Raleigh-Durham
Tue 12/15
8:05 am-9:30 am
Nonstop2h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$122
Quickest round-trip
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Thu 11/19
1:50 pm-2:50 pm
Nonstop2h 00m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$122
RaleighChicago
RDU Raleigh-Durham - ORD Chicago O'Hare Intl
RDUORD
Raleigh-Durham
Mon 12/7
6:15 am-7:44 am
Nonstop2h 29m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$122
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Fri 11/13
5:45 pm-8:50 pm
1 stop4h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
RaleighSpringfield
RDU Raleigh-Durham - SPI Springfield Capital
RDUSPI
Raleigh-Durham
Wed 11/11
6:42 am-6:56 pm
2 stops13h 14m
Springfield Capital
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$126
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Sat 12/19
7:50 pm-8:55 pm
Nonstop2h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Sat 11/21
7:50 pm-8:55 pm
Nonstop2h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$129
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Wed 11/18
11:30 am-7:30 pm
2 stops9h 00m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Thu 12/10
11:30 am-7:30 pm
2 stops9h 00m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$144
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Raleigh to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Raleigh with our price prediction graph.
RDU-ORD
RDU-MDW
RDU-BMI
RDU-MLI
RDU-SPI
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 Raleigh to Illinois
RDU-USIL
RDU-ORD
RDU-MDW
RDU-BMI
RDU-MLI
What is the cheapest month to book a flight from Raleigh to Illinois?
Currently, December is the cheapest month in which you can book a flight from Raleigh to Illinois (average of $267). Flying from Raleigh to Illinois in July is currently the most expensive (average of $393). 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 RDU to IL?
Find hourly flight availability from Raleigh 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 23, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 21% on flights from Raleigh to Illinois by exploring options for tickets in the evening.
Weekly flight availability from Raleigh to Illinois
Explore weekly flight availability from Raleigh to Illinois. 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 October 23, 2026.
The most flights from RDU to USIL are scheduled on a Thursday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Raleigh to Illinois?
Airfare is typical for this route at the moment.
Raleigh to Illinois flights typically cost between $222 and $381 in November.The cheapest round-trip price found within the last 5 days was $258 on Frontier (Nov 3-Nov 7).
How far ahead should I book a flight from Raleigh to Illinois?
To ensure you get the cheapest price possible for a flight from Raleigh to Illinois, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Raleigh to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Raleigh to Illinois. Price data was last updated on October 17, 2026.
Travelers seeking maximum savings on their Raleigh to Illinois flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday 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 23, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andJetBlue from Raleigh to Illinois. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Comfort
8.0
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Raleigh to Illinois. 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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Raleigh to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Raleigh to Illinois by cabin class
Find flights from Raleigh to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Raleigh and Illinois flights
Browse other Raleigh and Illinois flight options. Last updated on October 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Raleigh to Illinois flights
Consider these flights traveling from Raleigh to Illinois.
Top 6 airlines flying from Raleigh to Illinois
Discover the top 6 airlines that operate flights from Raleigh 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$358 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$160 | Average$327 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$364 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$210 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$243 | Average$375 | FlexibilityNo cancel fee | On-time63% |