$94+ Cheap flights from Bismarck (BIS) 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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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 Bismarck to IllinoisExplore the most affordable flight options available from Bismarck to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from Bismarck to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:10 pm
BIS
- ORD
1 stop6h 34m
Delta
Sat 11/73:50 pm
ORD
- BIS
1 stop4h 07m
Delta
Deal found 3/20![Delta logo]()
$167
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Wed 4/292:26 pm
BIS
- ORD
1 stop8h 19m
American Airlines
Tue 5/59:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/19![American Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:10 pm
BIS
- ORD
1 stop6h 34m
Delta
Sat 10/106:00 am
ORD
- BIS
1 stop6h 45m
Delta
Deal found 3/20![Delta logo]()
$263
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:56 pm
BIS
- ORD
Nonstop2h 14m
American Airlines
Sat 10/109:40 am
ORD
- BIS
Nonstop2h 24m
American Airlines
Deal found 3/20![American Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:30 am
BIS
- MDW
1 stop6h 40m
Delta
Sat 10/102:00 pm
MDW
- BIS
1 stop5h 57m
Delta
Deal found 3/19![Delta logo]()
$293
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:00 am
BIS
- MDW
2 stops7h 33m
Delta
Sat 11/72:00 pm
MDW
- BIS
1 stop5h 57m
Delta
Deal found 3/19![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:31 am
BIS
- MDW
1 stop5h 40m
Delta
Sat 8/296:45 pm
MDW
- BIS
1 stop4h 29m
Delta
Deal found 3/19![Delta logo]()
$313
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/92:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Wed 4/157:12 am
STL
- BIS
1 stop6h 44m
American Airlines
Deal found 3/19![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 3/21. 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 4/152:26 pm
BIS
- STL
2 stops9h 20m
American Airlines
Sat 4/185:20 am
STL
- BIS
1 stop8h 36m
American Airlines
Deal found 3/21![American Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:50 pm
BIS
- STL
1 stop6h 35m
Delta
Sun 4/56:29 am
STL
- BIS
1 stop6h 16m
Delta
Deal found 3/18![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 3/21. 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.
Fri 4/172:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Sat 4/1812:27 pm
STL
- BIS
2 stops10h 28m
American Airlines
Deal found 3/21![American Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 3/19. 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 5/51:55 pm
BIS
- STL
1 stop6h 48m
United Airlines
Sat 5/94:15 pm
STL
- BIS
1 stop7h 26m
United Airlines
Deal found 3/19![United Airlines logo]()
$409
Best flights from Bismarck to IllinoisDiscover carefully curated flight deals from Bismarck to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from Bismarck to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:31 am
BIS
- MDW
1 stop5h 40m
Delta
Sat 8/296:45 pm
MDW
- BIS
1 stop4h 29m
Delta
Deal found 3/19![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 3/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:25 pm
BIS
- STL
1 stop5h 32m
United Airlines
Tue 7/211:38 pm
STL
- BIS
1 stop6h 50m
United Airlines
Deal found 3/17![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/92:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Wed 4/157:12 am
STL
- BIS
1 stop6h 44m
American Airlines
Deal found 3/19![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:10 pm
BIS
- ORD
1 stop6h 33m
Delta
Sat 8/293:50 pm
ORD
- BIS
1 stop4h 03m
Delta
Deal found 3/19![Delta logo]()
$313
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Wed 4/159:00 am
BIS
- STL
1 stop7h 56m
United Airlines
Sat 4/188:54 am
STL
- BIS
1 stop7h 34m
United Airlines
Deal found 3/21![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/21. 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.
Fri 5/18:05 am
BIS
- STL
1 stop3h 27m
Delta
Mon 5/46:20 am
STL
- BIS
1 stop4h 14m
Delta
Deal found 3/21![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:32 pm
BIS
- ORD
Nonstop2h 12m
American Airlines
Sat 8/2910:34 am
ORD
- BIS
Nonstop2h 27m
American Airlines
Deal found 3/20![American Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:17 am
BIS
- ORD
1 stop6h 56m
Delta
Sat 4/187:07 pm
ORD
- BIS
1 stop4h 05m
Delta
Deal found 3/23![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 5/51:55 pm
BIS
- STL
1 stop6h 48m
United Airlines
Sat 5/94:15 pm
STL
- BIS
1 stop7h 26m
United Airlines
Deal found 3/18![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/241:10 pm
BIS
- ORD
1 stop6h 33m
Delta
Mon 7/275:20 pm
ORD
- BIS
1 stop5h 54m
Delta
Deal found 3/18![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:50 pm
BIS
- STL
1 stop6h 35m
Delta
Sun 4/56:29 am
STL
- BIS
1 stop4h 04m
Delta
Deal found 3/17![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 3/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/111:45 pm
BIS
- STL
1 stop7h 09m
United Airlines
Tue 4/147:45 am
STL
- BIS
2 stops29h 13m
United Airlines
Deal found 3/17![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 3/22. 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.
Fri 6/268:00 am
BIS
- ORD
1 stop3h 31m
Delta
Sun 6/286:30 am
ORD
- BIS
1 stop4h 06m
Delta
Deal found 3/22![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 3/22. 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.
Sun 6/75:00 am
BIS
- ORD
1 stop6h 31m
Delta
Sat 6/2012:46 pm
ORD
- BIS
1 stop7h 03m
Delta
Deal found 3/22![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 3/22. 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 8/411:10 am
BIS
- ORD
1 stop5h 49m
Delta
Sun 8/96:30 am
ORD
- BIS
1 stop4h 00m
Delta
Deal found 3/22![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:26 pm
BIS
- MDW
1 stop5h 14m
Delta
Sun 4/52:05 pm
MDW
- BIS
1 stop6h 14m
Delta
Deal found 3/17![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
BIS
- MDW
1 stop3h 38m
Delta
Fri 7/102:00 pm
MDW
- BIS
1 stop5h 53m
Delta
Deal found 3/20![Delta logo]()
$466
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
BIS
- ORD
2 stops7h 39m
Delta
Fri 7/105:20 pm
ORD
- BIS
1 stop5h 54m
Delta
Deal found 3/20![Delta logo]()
$471
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:40 am
BIS
- MDW
1 stop5h 44m
Delta
Mon 4/132:12 pm
MDW
- BIS
1 stop5h 23m
Delta
Deal found 3/19![Delta logo]()
$482
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:17 pm
BIS
- STL
1 stop5h 57m
Delta
Sun 4/196:20 am
STL
- BIS
1 stop6h 18m
Delta
Deal found 3/18![Delta logo]()
$504
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:31 am
BIS
- STL
1 stop3h 59m
Delta
Mon 6/295:30 pm
STL
- BIS
1 stop5h 44m
Delta
Deal found 3/17![Delta logo]()
$508
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:00 am
BIS
- MDW
1 stop3h 38m
Delta
Mon 7/66:45 pm
MDW
- BIS
1 stop4h 29m
Delta
Deal found 3/17![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:30 am
BIS
- MDW
1 stop6h 35m
Delta
Wed 8/52:00 pm
MDW
- BIS
1 stop5h 53m
Delta
Deal found 3/19![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:30 am
BIS
- ORD
1 stop5h 18m
Delta
Wed 8/51:35 pm
ORD
- BIS
2 stops9h 39m
Delta
Deal found 3/19![Delta logo]()
$524
Last-minute flights from Bismarck to IllinoisDiscover last-minute flight deals from Bismarck to Illinois. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Illinois. Data last updated March 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/207:40 am
BIS
- ORD
1 stop3h 55m
Delta
Tue 3/246:15 am
ORD
- BIS
1 stop4h 18m
Delta
Deal found 3/19![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:50 pm
BIS
- STL
1 stop6h 35m
Delta
Sun 4/56:29 am
STL
- BIS
1 stop6h 16m
Delta
Deal found 3/18![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:26 pm
BIS
- MDW
1 stop5h 14m
Delta
Sun 4/52:05 pm
MDW
- BIS
1 stop6h 14m
Delta
Deal found 3/17![Delta logo]()
$407
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/92:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Wed 4/157:12 am
STL
- BIS
1 stop6h 44m
American Airlines
Deal found 3/19![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 3/21. 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 4/152:26 pm
BIS
- STL
2 stops9h 20m
American Airlines
Sat 4/185:20 am
STL
- BIS
1 stop8h 36m
American Airlines
Deal found 3/21![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Thu 4/1612:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Thu 4/239:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/19![American Airlines logo]()
$425
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Fri 4/1712:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Sat 4/189:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/23![American Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:17 am
BIS
- ORD
1 stop6h 56m
Delta
Sat 4/187:07 pm
ORD
- BIS
1 stop4h 05m
Delta
Deal found 3/23![Delta logo]()
$358
This American Airlines deal was found by Cheapflights users on 3/21. 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.
Fri 4/172:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Sat 4/1812:27 pm
STL
- BIS
2 stops10h 28m
American Airlines
Deal found 3/21![American Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 3/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:26 pm
BIS
- STL
1 stop8h 33m
American Airlines
Mon 4/2712:27 pm
STL
- BIS
1 stop24h 02m
American Airlines
Deal found 3/17![American Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Wed 4/292:26 pm
BIS
- ORD
1 stop8h 19m
American Airlines
Tue 5/59:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/19![American Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:17 pm
BIS
- ORD
1 stop4h 21m
Delta
Tue 5/51:36 pm
ORD
- BIS
2 stops5h 59m
Delta
Deal found 3/19![Delta logo]()
$404
One-way flights from Bismarck to IllinoisSearch for one-way flight options from Bismarck to Illinois. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from Bismarck to Illinois. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:19 pm
BIS
- ORD
1 stop4h 54m
Delta
Deal found 3/20![Delta logo]()
$94
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:00 am
BIS
- ORD
1 stop3h 34m
Delta
Deal found 3/19![Delta logo]()
$114
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:00 am
BIS
- ORD
2 stops7h 39m
Delta
Deal found 3/19![Delta logo]()
$119
This American Airlines deal was found by Cheapflights users on 3/21. 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 4/2112:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Deal found 3/21![American Airlines logo]()
$126
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:14 pm
BIS
- ORD
1 stop3h 37m
Delta
Deal found 3/20![Delta logo]()
$136
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:19 pm
BIS
- ORD
2 stops10h 40m
Delta
Deal found 3/18![Delta logo]()
$141
This American Airlines deal was found by Cheapflights users on 3/18. 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.
Sat 4/1812:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Deal found 3/18![American Airlines logo]()
$166
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:26 pm
BIS
- ORD
1 stop8h 19m
American Airlines
Deal found 3/20![American Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 4/1911:36 am
BIS
- ORD
2 stops42h 14m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 5/1711:36 am
BIS
- ORD
1 stop17h 49m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Fri 6/1910:06 pm
BIS
- MDW
3 stops37h 06m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:17 pm
BIS
- STL
1 stop5h 57m
Delta
Deal found 3/18![Delta logo]()
$349
Find flight deals from Bismarck to Illinois
Keep the following information in mind while searching for Bismarck to Illinois flight deals. Data was last updated March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (American Airlines) |
One-way from | $94 (Delta) |
Popular in | March |
Cheapest in | November |
Average price | $690 |
Good round-trip deal | $422 or less |
Good one-way deal | $520 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Bismarck 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 March 23, 2026.
Use the filters below to find and compare flights from Bismarck to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BismarckChicago
BIS - MDW
BISMDW
Bismarck
Thu 8/27
7:31 am-1:11 pm
1 stop5h 40m
Chicago Midway
Sat 8/29
6:45 pm-11:14 pm
1 stop4h 29m
$313
BismarckChicago
BIS - ORD
BISORD
Bismarck
Thu 8/27
1:10 pm-7:43 pm
1 stop6h 33m
Chicago O'Hare Intl
Sat 8/29
3:50 pm-7:53 pm
1 stop4h 03m
$313
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Tue 7/14
6:25 pm-11:57 pm
1 stop5h 32m
Lambert-St Louis
Tue 7/21
1:38 pm-8:28 pm
1 stop6h 50m
$329
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Thu 4/9
2:26 pm-10:59 pm
1 stop8h 33m
Lambert-St Louis
Wed 4/15
7:12 am-1:56 pm
1 stop6h 44m
$329
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Wed 4/15
9:00 am-4:56 pm
1 stop7h 56m
Lambert-St Louis
Sat 4/18
8:54 am-4:28 pm
1 stop7h 34m
$329
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Fri 5/1
8:05 am-11:32 am
1 stop3h 27m
Lambert-St Louis
Mon 5/4
6:20 am-10:34 am
1 stop4h 14m
$329
BismarckChicago
BIS - ORD
BISORD
Bismarck
Fri 4/17
11:17 am-6:13 pm
1 stop6h 56m
Chicago O'Hare Intl
Sat 4/18
7:07 pm-11:12 pm
1 stop4h 05m
$358
BismarckChicago
BIS - ORD
BISORD
Bismarck
Fri 7/24
1:10 pm-7:43 pm
1 stop6h 33m
Chicago O'Hare Intl
Mon 7/27
5:20 pm-11:14 pm
1 stop5h 54m
$359
Quickest round-trip
BismarckChicago
BIS - ORD
BISORD
Bismarck
Thu 8/27
1:32 pm-3:44 pm
Nonstop2h 12m
Chicago O'Hare Intl
Sat 8/29
10:34 am-1:01 pm
Nonstop2h 27m
$367
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Wed 4/1
4:50 pm-11:25 pm
1 stop6h 35m
Lambert-St Louis
Sun 4/5
6:29 am-10:33 am
1 stop4h 04m
$369
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from Bismarck to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Bismarck with our price prediction graph.
BIS-ORD
BIS-MDW
BIS-STL
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 Bismarck to Illinois
BIS-USIL
BIS-ORD
BIS-MDW
BIS-STL
No data available for this route at this time. Please check back soon.
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 March 23, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Bismarck to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Bismarck 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 Bismarck to Illinois
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Complete your trip
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Bismarck and Illinois flights
Browse other Bismarck and Illinois flight options. Last updated on March 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Bismarck to Illinois flights
Consider these flights traveling from Bismarck to Illinois.
Top 2 airlines flying from Bismarck to Illinois
Discover the top 2 airlines that operate flights from Bismarck 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$240 | Average$310 | FlexibilityNo cancel fee | On-time71% |