$118+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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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
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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 November 4, 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 November 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:07 am -
1 stop8h 00m
Wed 12/23:55 pm -
1 stop7h 02m
Deal found 11/1![Frontier logo]()
$257
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.
Wed 11/189:47 pm -
2 stops21h 00m
Mon 11/238:42 pm -
1 stop25h 53m
Deal found 10/30![Multiple Airlines logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:12 am -
1 stop7h 55m
Sat 11/147:05 am -
1 stop6h 51m
Deal found 10/31![Frontier logo]()
$258
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:18 pm -
1 stop8h 29m
Wed 11/186:08 am -
1 stop8h 15m
Deal found 10/31![Frontier logo]()
$258
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:44 pm -
2 stops20h 46m
Sun 12/610:29 pm -
2 stops24h 17m
Deal found 11/1![Frontier logo]()
$259
This Trip.com deal was found by Cheapflights users on 10/31. 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.
Fri 11/208:46 pm -
1 stop11h 47m
Wed 11/258:42 pm -
1 stop11h 15m
Deal found 10/31![Frontier logo]()
$259
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:26 pm -
1 stop24h 41m
Sun 11/227:49 am -
1 stop5h 48m
Deal found 10/30![Frontier logo]()
$260
This Cheapflightsfares 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 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
Tue 11/179:51 am -
1 stop22h 16m
Deal found 10/30![Frontier logo]()
$261
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:21 pm -
1 stop4h 45m
Sun 12/135:02 pm -
2 stops16h 57m
Deal found 11/1![Frontier logo]()
$261
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/221:38 pm -
1 stop12h 30m
Sat 12/265:58 am -
1 stop7h 46m
Deal found 11/2![Frontier logo]()
$262
This Booking.com deal was found by Cheapflights users on 11/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:06 am -
1 stop6h 31m
Mon 11/99:51 am -
1 stop22h 26m
Deal found 11/2![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:44 pm -
2 stops17h 49m
Mon 12/75:02 pm -
1 stop5h 57m
Deal found 11/4![Frontier 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 November 4, 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 November 4, 2026.
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/39:55 am -
Nonstop2h 29m
Sun 12/61:30 pm -
Nonstop2h 12m
Deal found 11/3![United Airlines logo]()
$268
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 1/78:05 am -
Nonstop2h 00m
Sun 1/108:15 am -
Nonstop2h 00m
Deal found 10/30![Southwest logo]()
$268
This Delta deal was found by Cheapflights users on 11/2. 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.
Mon 12/215:30 am -
1 stop4h 19m
Mon 12/216:15 pm -
1 stop4h 01m
Deal found 11/2![Delta logo]()
$332
This American Airlines deal was found by Cheapflights users on 10/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2411:15 am -
2 stops6h 34m
Fri 1/15:00 am -
2 stops7h 26m
Deal found 10/31![American Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 11/2. 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.
Fri 1/2211:55 am -
2 stops7h 45m
Sun 1/2412:50 pm -
2 stops6h 55m
Deal found 11/2![Southwest logo]()
$298
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 12/59:55 am -
Nonstop2h 29m
Sat 12/126:25 pm -
Nonstop2h 14m
Deal found 11/1![United Airlines logo]()
$312
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 11/268:05 am -
Nonstop2h 27m
Tue 12/16:25 pm -
Nonstop2h 14m
Deal found 11/1![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 11/1. 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 12/52:50 pm -
1 stop5h 50m
Sat 12/127:50 am -
2 stops10h 30m
Deal found 11/1![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 11/1. 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.
Sun 11/227:41 am -
1 stop4h 45m
Fri 11/276:01 am -
1 stop6h 54m
Deal found 11/1![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 11/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
2 stops8h 59m
Fri 11/277:01 am -
2 stops7h 25m
Deal found 11/1![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/196:12 am -
Nonstop2h 34m
Tue 12/2212:55 pm -
Nonstop2h 16m
Deal found 11/2![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 11/1. 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 11/239:57 am -
1 stop6h 48m
Fri 11/276:01 am -
1 stop5h 51m
Deal found 11/1![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 10/31. 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.
Tue 12/87:10 am -
2 stops8h 40m
Thu 12/101:15 pm -
2 stops7h 45m
Deal found 10/31![Southwest logo]()
$342
This American Airlines deal was found by Cheapflights users on 11/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:15 pm -
1 stop4h 52m
Mon 11/235:00 am -
2 stops7h 56m
Deal found 11/1![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 1/279:45 am -
1 stop6h 26m
Fri 2/52:26 pm -
2 stops8h 18m
Deal found 11/3![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 11/1. 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.
Sat 11/214:24 pm -
1 stop7h 07m
Mon 11/234:28 pm -
1 stop6h 56m
Deal found 11/1![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 10/31. 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.
Thu 12/318:05 am -
Nonstop2h 05m
Sun 1/37:35 am -
Nonstop1h 55m
Deal found 10/31![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Tue 12/228:03 pm -
1 stop4h 58m
Sat 12/266:25 pm -
Nonstop2h 09m
Deal found 10/31![United Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 11/187:59 am -
2 stops6h 59m
Sun 11/225:00 am -
2 stops7h 22m
Deal found 11/3![American Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 11/3. 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.
Wed 11/189:57 am -
1 stop6h 48m
Sun 11/224:28 pm -
1 stop6h 56m
Deal found 11/3![Delta logo]()
$383
This Southwest deal was found by Cheapflights users on 10/31. 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.
Tue 12/226:35 pm -
1 stop5h 40m
Sat 12/266:45 pm -
Nonstop1h 55m
Deal found 10/31![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 1/146:10 am -
1 stop4h 30m
Mon 1/187:29 am -
Nonstop2h 16m
Deal found 11/3![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 11/3. 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 11/278:00 am -
Nonstop2h 05m
Mon 11/3012:55 pm -
Nonstop1h 50m
Deal found 11/3![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Tue 12/2910:35 am -
1 stop4h 54m
Wed 12/3010:25 am -
Nonstop2h 10m
Deal found 11/3![United Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 12/37:00 am -
2 stops7h 55m
Sun 12/62:36 pm -
1 stop6h 03m
Deal found 11/1![United Airlines logo]()
$344
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.
Sat 11/213:25 pm -
2 stops6h 10m
Mon 11/238:45 am -
2 stops6h 45m
Deal found 10/30![Southwest logo]()
$382
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:28 am -
1 stop6h 27m
Mon 12/286:43 pm -
1 stop4h 58m
Deal found 11/2![American Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 12/268:00 am -
1 stop7h 10m
Thu 1/286:27 am -
1 stop7h 48m
Deal found 11/4![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 11/3. 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.
Thu 12/311:30 am -
2 stops9h 00m
Sun 12/612:55 pm -
2 stops8h 20m
Deal found 11/3![Southwest logo]()
$393
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 12/205:28 am -
1 stop6h 27m
Tue 12/296:43 pm -
1 stop4h 58m
Deal found 11/3![American Airlines logo]()
$552
Last-minute flights from Raleigh to IllinoisDiscover last-minute flight deals from Raleigh to Illinois. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Illinois. Data last updated November 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:12 am -
1 stop7h 55m
Sat 11/147:05 am -
1 stop6h 51m
Deal found 10/31![Frontier logo]()
$258
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:26 pm -
1 stop24h 41m
Sun 11/227:49 am -
1 stop5h 48m
Deal found 10/30![Frontier logo]()
$260
This Travelocity deal was found by Cheapflights users on 11/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:12 am -
1 stop7h 55m
Thu 11/127:55 am -
1 stop29h 03m
Deal found 11/2![Frontier logo]()
$265
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/114:18 pm -
1 stop8h 29m
Wed 11/186:08 am -
1 stop8h 15m
Deal found 10/31![Frontier logo]()
$258
This Cheapflightsfares deal was found by Cheapflights users on 11/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:07 am -
1 stop8h 00m
Thu 11/127:55 am -
1 stop29h 03m
Deal found 11/4![Frontier logo]()
$262
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.
Wed 11/189:47 pm -
2 stops21h 00m
Mon 11/238:42 pm -
1 stop25h 53m
Deal found 10/30![Multiple Airlines logo]()
$257
This Trip.com deal was found by Cheapflights users on 10/31. 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.
Fri 11/208:46 pm -
1 stop11h 47m
Wed 11/258:42 pm -
1 stop11h 15m
Deal found 10/31![Frontier logo]()
$259
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:41 pm -
1 stop26h 06m
Sat 11/288:28 am -
1 stop4h 22m
Deal found 11/2![Frontier logo]()
$267
This Southwest deal was found by Cheapflights users on 11/1. 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.
Tue 11/245:25 am -
2 stops7h 35m
Thu 11/268:40 am -
2 stops7h 20m
Deal found 11/1![Southwest logo]()
$264
This CheapOair deal was found by Cheapflights users on 10/31. 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.
Tue 11/2412:28 pm -
1 stop8h 19m
Sun 11/298:42 pm -
1 stop25h 53m
Deal found 10/31![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:44 pm -
2 stops17h 49m
Mon 12/75:02 pm -
1 stop5h 57m
Deal found 11/4![Frontier logo]()
$263
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:21 pm -
1 stop4h 45m
Sun 12/135:02 pm -
2 stops16h 57m
Deal found 11/1![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 November 4, 2026.
Search for one-way flight options from Raleigh to Illinois. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:07 am -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$118
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 11/276:00 am -
1 stop4h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![United Airlines logo]()
$119
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:40 am -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Delta logo]()
$119
This Trip.com deal was found by Cheapflights users on 11/3. 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.
Tue 11/176:42 am -
1 stop12h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$120
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:44 pm -
2 stops20h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 12/28:30 am -
2 stops14h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$122
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:07 pm -
1 stop5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/184:18 pm -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:06 pm -
2 stops48h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:44 pm -
2 stops29h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$125
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/161:54 pm -
2 stops9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 11/1. 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.
Mon 11/231:45 pm -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Southwest 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 November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (CheapOair) |
One-way from | $118 (Cheapflightsfares) |
Popular in | July |
Cheapest in | December |
Average price | $312 |
Good round-trip deal | $314 or less |
Good one-way deal | $202 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 November 4, 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
RaleighChicago
RDU Raleigh-Durham - ORD Chicago O'Hare Intl
RDUORD
Raleigh-Durham
Fri 1/1
6:00 am-11:37 am
1 stop6h 37m
Chicago O'Hare Intl
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 12/22
7:55 pm-12:02 am
1 stop5h 07m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$119
RaleighChicago
RDU Raleigh-Durham - ORD Chicago O'Hare Intl
RDUORD
Raleigh-Durham
Fri 12/18
5:30 am-10:59 am
1 stop6h 29m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$119
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Fri 11/27
5:40 am-11:25 am
1 stop6h 45m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$119
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Fri 11/20
5:40 am-9:46 am
1 stop5h 06m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$119
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Sat 1/9
7:10 am-4:10 pm
2 stops10h 00m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Tue 12/15
11:30 am-7:30 pm
2 stops9h 00m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$124
Quickest round-trip
RaleighChicago
RDU Raleigh-Durham - MDW Chicago Midway
RDUMDW
Raleigh-Durham
Wed 12/2
8:05 am-9:10 am
Nonstop2h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$126
RaleighChicago
RDU Raleigh-Durham - ORD Chicago O'Hare Intl
RDUORD
Raleigh-Durham
Tue 12/22
8:00 am-9:34 am
Nonstop2h 34m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
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
$160
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-CMI
RDU-MLI
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-CMI
What is the cheapest month to book a flight from Raleigh to Illinois?
Currently, January is the cheapest month in which you can book a flight from Raleigh to Illinois (average of $281). 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 November 4, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 20% 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 November 4, 2026.
The most flights from RDU to USIL are scheduled on a Monday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
How much does it cost to fly round-trip from Raleigh to Illinois?
Airfare is below average for this route at the moment.
Raleigh to Illinois flights typically cost between $258 and $420 in November.The cheapest round-trip price found within the last 5 days was $257 on Multiple Airlines (Nov 18-Nov 25).
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 31, 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 November 4, 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.
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
8.0
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
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.
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Alternative routes for Raleigh to Illinois
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Complete your trip
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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 November 4, 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 November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$55 | Average$236 | 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$208 | Average$366 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$219 | Average$422 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$243 | Average$376 | FlexibilityNo cancel fee | On-time63% |