$81+ Cheap flights from Durham, NC to Illinois
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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ORD
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Cheapest flights from Durham to IllinoisExplore the most affordable flight options available from Durham to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
Explore the most affordable flight options available from Durham to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/208:29 pm
RDU
- STL
2 stops22h 08m
Multiple Airlines
Sat 7/254:57 pm
STL
- RDU
1 stop6h 06m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:35 am
RDU
- STL
1 stop28h 05m
Frontier
Fri 10/2310:35 am
STL
- RDU
1 stop12h 42m
Frontier
Deal found 6/12![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 9/184:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Mon 9/2110:35 am
STL
- RDU
1 stop12h 42m
Frontier
Deal found 6/13![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/268:06 pm
RDU
- STL
2 stops22h 24m
Frontier
Sat 8/295:33 pm
STL
- RDU
1 stop5h 49m
Frontier
Deal found 6/16![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:04 pm
RDU
- STL
1 stop21h 53m
Multiple Airlines
Tue 7/146:34 pm
STL
- RDU
2 stops19h 35m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/202:31 pm
RDU
- STL
1 stop10h 28m
Frontier
Tue 7/216:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/16![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:05 pm
RDU
- STL
1 stop18h 35m
Frontier
Fri 10/2310:35 am
STL
- RDU
1 stop12h 42m
Frontier
Deal found 6/12![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 9/134:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Sat 9/1910:35 am
STL
- RDU
2 stops26h 52m
Frontier
Deal found 6/13![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:32 pm
RDU
- STL
2 stops23h 05m
Frontier
Sat 8/14:57 pm
STL
- RDU
1 stop6h 06m
Frontier
Deal found 6/12![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/299:48 pm
RDU
- STL
2 stops20h 49m
Multiple Airlines
Sat 8/14:57 pm
STL
- RDU
1 stop6h 06m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 9/812:54 pm
RDU
- STL
1 stop21h 46m
Multiple Airlines
Sun 9/1310:35 am
STL
- RDU
2 stops10h 50m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$233
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/811:13 am
RDU
- ORD
1 stop6h 33m
American Airlines
Tue 7/148:18 am
ORD
- RDU
Nonstop2h 20m
American Airlines
Deal found 6/15![American Airlines logo]()
$247
Best flights from Durham to IllinoisDiscover carefully curated flight deals from Durham to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
Discover carefully curated flight deals from Durham to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:59 pm
RDU
- ORD
1 stop4h 18m
Delta
Wed 8/2610:33 am
ORD
- RDU
1 stop4h 30m
Delta
Deal found 6/14![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:45 pm
RDU
- MDW
1 stop6h 00m
Southwest
Wed 8/512:45 pm
MDW
- RDU
2 stops5h 05m
Southwest
Deal found 6/12![Southwest logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:46 pm
RDU
- RFD
1 stop19h 29m
Multiple Airlines
Mon 9/215:20 pm
RFD
- RDU
1 stop15h 39m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 8/1212:09 pm
RDU
- MLI
1 stop4h 31m
American Airlines
Tue 8/1811:43 am
MLI
- RDU
1 stop7h 04m
American Airlines
Deal found 6/13![American Airlines logo]()
$261
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:15 pm
RDU
- ORD
Nonstop2h 30m
United Airlines
Sat 7/46:55 am
ORD
- RDU
Nonstop2h 13m
United Airlines
Deal found 6/11![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:53 am
RDU
- ORD
1 stop4h 15m
Delta
Wed 8/125:20 pm
ORD
- RDU
1 stop5h 05m
Delta
Deal found 6/14![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:30 am
RDU
- MDW
Nonstop1h 50m
Southwest
Sat 8/227:40 am
MDW
- RDU
Nonstop1h 55m
Southwest
Deal found 6/11![Southwest logo]()
$261
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:51 pm
RDU
- PIA
1 stop5h 24m
American Airlines
Sat 8/156:34 am
PIA
- RDU
1 stop5h 36m
American Airlines
Deal found 6/12![American Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:29 pm
RDU
- RFD
1 stop13h 46m
Multiple Airlines
Fri 7/107:50 pm
RFD
- RDU
1 stop12h 10m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:15 pm
RDU
- MDW
1 stop5h 21m
Delta
Wed 8/2610:54 am
MDW
- RDU
1 stop4h 09m
Delta
Deal found 6/14![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:45 pm
RDU
- MDW
1 stop7h 20m
Southwest
Tue 7/77:40 am
MDW
- RDU
Nonstop1h 55m
Southwest
Deal found 6/12![Southwest logo]()
$266
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 10/2210:40 am
RDU
- ORD
1 stop4h 46m
United Airlines
Sun 10/256:10 pm
ORD
- RDU
Nonstop1h 52m
United Airlines
Deal found 6/13![United Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 7/94:15 pm
RDU
- MLI
1 stop6h 45m
American Airlines
Wed 7/157:00 am
MLI
- RDU
1 stop6h 17m
American Airlines
Deal found 6/14![American Airlines logo]()
$285
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/187:00 pm
RDU
- MLI
1 stop4h 31m
Delta
Wed 7/225:56 am
MLI
- RDU
1 stop4h 39m
Delta
Deal found 6/16![Delta logo]()
$261
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/43:50 pm
RDU
- MDW
Nonstop2h 05m
Southwest
Wed 7/83:10 pm
MDW
- RDU
1 stop6h 10m
Southwest
Deal found 6/15![Southwest logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:52 pm
RDU
- RFD
1 stop24h 08m
Multiple Airlines
Fri 7/317:50 pm
RFD
- RDU
1 stop12h 10m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
RDU
- ORD
1 stop4h 38m
United Airlines
Thu 9/179:10 am
ORD
- RDU
Nonstop2h 23m
United Airlines
Deal found 6/12![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/297:00 pm
RDU
- MDW
Nonstop2h 00m
Southwest
Tue 8/42:40 pm
MDW
- RDU
Nonstop1h 55m
Southwest
Deal found 6/15![Southwest logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/1511:56 am
RDU
- RFD
2 stops23h 41m
Multiple Airlines
Mon 7/207:50 pm
RFD
- RDU
1 stop12h 35m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 7/178:08 pm
RDU
- PIA
1 stop4h 50m
American Airlines
Sun 7/195:05 am
PIA
- RDU
1 stop4h 18m
American Airlines
Deal found 6/14![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/187:00 pm
RDU
- MLI
1 stop4h 31m
Delta
Fri 7/245:56 am
MLI
- RDU
1 stop4h 47m
Delta
Deal found 6/16![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
RDU
- ORD
1 stop6h 48m
United Airlines
Mon 8/102:13 pm
ORD
- RDU
Nonstop2h 14m
United Airlines
Deal found 6/11![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 10/226:25 pm
RDU
- MDW
1 stop6h 45m
Southwest
Mon 10/267:50 am
MDW
- RDU
Nonstop1h 55m
Southwest
Deal found 6/13![Southwest logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:03 pm
RDU
- RFD
1 stop22h 57m
Multiple Airlines
Mon 8/37:50 pm
RFD
- RDU
1 stop12h 35m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 9/151:15 pm
RDU
- ORD
Nonstop2h 31m
United Airlines
Wed 9/1612:50 pm
ORD
- RDU
Nonstop2h 12m
United Airlines
Deal found 6/15![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/46:20 am
RDU
- MDW
1 stop4h 49m
Delta
Sat 7/44:25 pm
MDW
- RDU
1 stop5h 23m
Delta
Deal found 6/15![Delta logo]()
$295
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:09 pm
RDU
- PIA
2 stops7h 07m
American Airlines
Sat 9/56:00 am
PIA
- RDU
2 stops8h 27m
American Airlines
Deal found 6/11![American Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:34 pm
RDU
- RFD
1 stop10h 15m
Multiple Airlines
Mon 8/106:26 pm
RFD
- RDU
1 stop13h 59m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 10/67:05 am
RDU
- ORD
1 stop5h 58m
United Airlines
Wed 10/1410:33 am
ORD
- RDU
Nonstop2h 16m
United Airlines
Deal found 6/15![United Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/75:05 pm
RDU
- MDW
1 stop5h 55m
Southwest
Tue 8/112:40 pm
MDW
- RDU
Nonstop1h 55m
Southwest
Deal found 6/15![Southwest logo]()
$297
Last-minute flights from Durham to IllinoisDiscover last-minute flight deals from Durham to Illinois. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Durham to Illinois. Data last updated June 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 6/3012:54 pm
RDU
- STL
1 stop5h 36m
Frontier
Tue 7/76:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/13![Frontier logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:15 am
RDU
- STL
1 stop12h 15m
Frontier
Mon 7/64:57 pm
STL
- RDU
2 stops23h 12m
Frontier
Deal found 6/11![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:29 pm
RDU
- STL
2 stops25h 08m
Frontier
Tue 7/146:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/11![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:04 pm
RDU
- STL
1 stop21h 53m
Multiple Airlines
Tue 7/146:34 pm
STL
- RDU
2 stops19h 35m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:22 pm
RDU
- STL
2 stops44h 15m
Frontier
Tue 7/216:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/11![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/146:15 am
RDU
- STL
1 stop12h 22m
Frontier
Sun 7/196:34 pm
STL
- RDU
2 stops19h 03m
Frontier
Deal found 6/15![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/155:29 pm
RDU
- STL
1 stop7h 30m
Frontier
Fri 7/244:57 pm
STL
- RDU
1 stop6h 07m
Frontier
Deal found 6/16![Frontier logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/208:29 pm
RDU
- STL
2 stops22h 08m
Multiple Airlines
Sat 7/254:57 pm
STL
- RDU
1 stop6h 06m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/202:31 pm
RDU
- STL
1 stop10h 28m
Frontier
Thu 7/236:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/16![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:29 pm
RDU
- STL
2 stops37h 28m
Multiple Airlines
Sat 8/14:57 pm
STL
- RDU
1 stop6h 06m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:29 pm
RDU
- STL
1 stop7h 30m
Frontier
Sat 7/254:57 pm
STL
- RDU
1 stop6h 06m
Frontier
Deal found 6/11![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 7/2412:04 pm
RDU
- STL
1 stop21h 53m
Frontier
Sun 7/266:34 pm
STL
- RDU
1 stop12h 37m
Frontier
Deal found 6/13![Frontier logo]()
$234
One-way flights from Durham to IllinoisSearch for one-way flight options from Durham to Illinois. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
Search for one-way flight options from Durham to Illinois. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:15 am
RDU
- STL
1 stop12h 22m
Frontier
Deal found 6/12![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:15 am
RDU
- STL
1 stop12h 22m
Frontier
Deal found 6/11![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:15 am
RDU
- STL
1 stop27h 42m
Frontier
Deal found 6/14![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:15 am
RDU
- STL
1 stop12h 22m
Frontier
Deal found 6/12![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:54 pm
RDU
- STL
1 stop5h 36m
Frontier
Deal found 6/11![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:15 am
RDU
- STL
1 stop27h 42m
Frontier
Deal found 6/11![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 9/144:20 pm
RDU
- STL
1 stop18h 20m
Frontier
Deal found 6/14![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:49 pm
RDU
- STL
1 stop7h 10m
Frontier
Deal found 6/11![Frontier logo]()
$120
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:26 pm
RDU
- STL
1 stop7h 57m
Frontier
Deal found 6/11![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 7/138:29 pm
RDU
- STL
2 stops22h 08m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:29 pm
RDU
- STL
2 stops22h 08m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1610:25 am
RDU
- ORD
2 stops26h 50m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$131
Find flight deals from Durham to Illinois
Keep the following information in mind while searching for Durham to Illinois flight deals. Data was last updated June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (Kiwi.com) |
One-way from | $81 (Trip.com) |
Popular in | February |
Cheapest in | December |
Average price | $337 |
Cheapflights Fare Finder
Customize your flight search to find flights from Durham 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 2,558,603 searches. Data last updated June 16, 2026.
Use the filters below to find and compare flights from Durham to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
RaleighChicago
RDU - ORD
RDUORD
Raleigh-Durham
Wed 8/19
12:59 pm-4:17 pm
1 stop4h 18m
Chicago O'Hare Intl
Wed 8/26
10:33 am-4:03 pm
1 stop4h 30m
$257
RaleighChicago
RDU - ORD
RDUORD
Raleigh-Durham
Wed 8/12
9:53 am-1:08 pm
1 stop4h 15m
Chicago O'Hare Intl
Wed 8/12
5:20 pm-11:25 pm
1 stop5h 05m
$257
RaleighChicago
RDU - MDW
RDUMDW
Raleigh-Durham
Wed 8/19
6:15 pm-10:36 pm
1 stop5h 21m
Chicago Midway
Wed 8/26
10:54 am-4:03 pm
1 stop4h 09m
$257
RaleighChicago
RDU - MDW
RDUMDW
Raleigh-Durham
Tue 8/4
1:45 pm-6:45 pm
1 stop6h 00m
Chicago Midway
Wed 8/5
12:45 pm-6:50 pm
2 stops5h 05m
$258
RaleighChicago
RDU - RFD
RDURFD
Raleigh-Durham
Thu 9/17
9:46 pm-4:15 pm
1 stop19h 29m
Chicago Greater Rockford
Mon 9/21
5:20 pm-9:59 am
1 stop15h 39m
$260
RaleighMoline
RDU - MLI
RDUMLI
Raleigh-Durham
Wed 8/12
12:09 pm-3:40 pm
1 stop4h 31m
Moline Quad-City
Tue 8/18
11:43 am-7:47 pm
1 stop7h 04m
$261
Quickest round-trip
RaleighChicago
RDU - MDW
RDUMDW
Raleigh-Durham
Sat 8/15
7:30 am-8:20 am
Nonstop1h 50m
Chicago Midway
Sat 8/22
7:40 am-10:35 am
Nonstop1h 55m
$261
RaleighMoline
RDU - MLI
RDUMLI
Raleigh-Durham
Sat 7/18
7:00 pm-10:31 pm
1 stop4h 31m
Moline Quad-City
Wed 7/22
5:56 am-11:35 am
1 stop4h 39m
$261
RaleighChicago
RDU - MDW
RDUMDW
Raleigh-Durham
Fri 7/3
12:45 pm-7:05 pm
1 stop7h 20m
Chicago Midway
Tue 7/7
7:40 am-10:35 am
Nonstop1h 55m
$266
RaleighChicago
RDU - MDW
RDUMDW
Raleigh-Durham
Sat 7/4
3:50 pm-4:55 pm
Nonstop2h 05m
Chicago Midway
Wed 7/8
3:10 pm-10:20 pm
1 stop6h 10m
$266
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Durham to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Durham with our price prediction graph.
RDU-STL
RDU-ORD
RDU-RFD
RDU-MDW
RDU-PIA
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 Durham to Illinois
DU8-USIL
RDU-STL
RDU-ORD
RDU-RFD
RDU-MDW
What is the cheapest time of day to fly from DU8 to IL?
Find hourly flight availability from Durham 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 June 16, 2026.
A simple way to save on the total cost of your ticket is to fly from Durham to Illinois in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.
Weekly flight availability from Durham to Illinois
Explore weekly flight availability from Durham 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 June 16, 2026.
The most flights from DU8 to USIL are scheduled on a Monday (35 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 Durham to Illinois?
What is the cheapest day to fly from Durham to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Durham to Illinois. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Durham to Illinois flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon 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 June 16, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Durham to Illinois have to say. 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.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Durham 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 Durham 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 Durham to Illinois by cabin class
Find flights from Durham to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Durham and Illinois flights
Browse other Durham and Illinois flight options. Last updated on June 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Durham after your stay in Illinois
Durham to Illinois flights
Consider these flights traveling from Durham to Illinois.
Top 6 airlines flying from Durham to Illinois
Discover the top 6 airlines that operate flights from Durham 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 2,558,603 searches. Data last updated June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$74 | Average$199 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$323 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$152 | Average$339 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$160 | Average$299 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$173 | Average$410 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$321 | FlexibilityNo cancel fee | On-time63% |