$196+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Jun 13 — Jun 201
Round-trip
1 adult, Economy
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Find cheap flights from Bismarck to Illinois with Cheapflights
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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 May 14, 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 May 14, 2026.
This American Airlines deal was found by Cheapflights users on 5/13. 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 10/71:56 pm
BIS
- ORD
Nonstop2h 14m
American Airlines
Tue 10/139:40 am
ORD
- BIS
Nonstop2h 24m
American Airlines
Deal found 5/13![American Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Tue 11/32:28 pm
BIS
- ORD
1 stop7h 55m
American Airlines
Sat 11/79:40 am
ORD
- BIS
Nonstop2h 45m
American Airlines
Deal found 5/13![American Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:00 am
BIS
- MDW
1 stop6h 51m
Delta
Sat 10/109:55 am
MDW
- BIS
1 stop4h 30m
Delta
Deal found 5/12![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm
BIS
- ORD
1 stop4h 34m
Delta
Sat 10/106:00 am
ORD
- BIS
1 stop5h 54m
Delta
Deal found 5/13![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:35 pm
BIS
- STL
1 stop4h 19m
Delta
Sat 10/176:30 am
STL
- BIS
1 stop5h 24m
Delta
Deal found 5/13![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 5/12. 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 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 11/79:30 am
MDW
- BIS
2 stops7h 24m
Delta
Deal found 5/12![Delta logo]()
$325
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:31 am
BIS
- ORD
2 stops11h 09m
Delta
Sat 11/78:55 am
ORD
- BIS
2 stops7h 59m
Delta
Deal found 5/13![Delta logo]()
$325
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Thu 5/2812:42 pm
BIS
- STL
1 stop7h 48m
American Airlines
Tue 6/26:35 am
STL
- BIS
1 stop5h 49m
American Airlines
Deal found 5/12![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Sat 8/11:16 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Wed 8/510:00 am
ORD
- BIS
Nonstop2h 28m
American Airlines
Deal found 5/14![American Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:40 pm
BIS
- ORD
1 stop4h 12m
Delta
Wed 8/56:25 am
ORD
- BIS
1 stop4h 05m
Delta
Deal found 5/11![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am
BIS
- MDW
1 stop3h 49m
Delta
Tue 10/139:30 am
MDW
- BIS
2 stops7h 24m
Delta
Deal found 5/12![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:30 pm
BIS
- ORD
1 stop4h 04m
Delta
Tue 10/137:05 am
ORD
- BIS
2 stops9h 49m
Delta
Deal found 5/13![Delta logo]()
$352
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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/14. 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 10/75:00 am
BIS
- MDW
1 stop3h 49m
Delta
Tue 10/139:55 am
MDW
- BIS
1 stop6h 59m
Delta
Deal found 5/14![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Thu 5/2812:42 pm
BIS
- STL
1 stop7h 48m
American Airlines
Tue 6/26:35 am
STL
- BIS
1 stop5h 49m
American Airlines
Deal found 5/12![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 10/245:45 am
BIS
- STL
1 stop6h 55m
United Airlines
Wed 10/284:30 pm
STL
- BIS
1 stop7h 07m
United Airlines
Deal found 5/10![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:35 pm
BIS
- STL
1 stop4h 19m
Delta
Sat 10/176:30 am
STL
- BIS
1 stop5h 24m
Delta
Deal found 5/13![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm
BIS
- ORD
1 stop4h 34m
Delta
Sat 10/107:05 am
ORD
- BIS
2 stops9h 49m
Delta
Deal found 5/12![Delta logo]()
$320
This Delta deal was found by Cheapflights users on 5/14. 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.
Tue 11/37:31 am
BIS
- ORD
2 stops11h 09m
Delta
Sat 11/77:05 am
ORD
- BIS
2 stops9h 49m
Delta
Deal found 5/14![Delta logo]()
$325
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/102:00 pm
BIS
- STL
1 stop7h 37m
American Airlines
Wed 6/177:03 am
STL
- BIS
1 stop5h 14m
American Airlines
Deal found 5/13![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:40 pm
BIS
- ORD
1 stop4h 12m
Delta
Wed 8/56:25 am
ORD
- BIS
1 stop4h 05m
Delta
Deal found 5/11![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/35:42 pm
BIS
- ORD
1 stop3h 38m
Delta
Wed 6/106:30 am
ORD
- BIS
1 stop4h 06m
Delta
Deal found 5/10![Delta logo]()
$352
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 6/92:00 pm
BIS
- STL
1 stop7h 37m
American Airlines
Mon 6/155:18 pm
STL
- BIS
1 stop6h 39m
American Airlines
Deal found 5/14![American Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:00 am
BIS
- ORD
1 stop7h 05m
Delta
Wed 6/175:57 pm
ORD
- BIS
1 stop5h 24m
Delta
Deal found 5/13![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 8/271:27 pm
BIS
- MDW
1 stop4h 34m
Delta
Sat 8/299:59 am
MDW
- BIS
1 stop6h 56m
Delta
Deal found 5/9![Delta logo]()
$357
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Sat 10/106:45 am
BIS
- STL
2 stops9h 30m
American Airlines
Sat 10/179:47 am
STL
- BIS
2 stops13h 09m
American Airlines
Deal found 5/13![American Airlines logo]()
$548
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm
BIS
- ORD
1 stop6h 34m
Delta
Mon 10/126:00 am
ORD
- BIS
1 stop5h 54m
Delta
Deal found 5/12![Delta logo]()
$357
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:40 pm
BIS
- ORD
1 stop4h 12m
Delta
Tue 7/215:54 pm
ORD
- BIS
1 stop5h 17m
Delta
Deal found 5/13![Delta logo]()
$357
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:00 am
BIS
- MDW
2 stops7h 38m
Delta
Tue 7/217:06 pm
MDW
- BIS
1 stop4h 05m
Delta
Deal found 5/13![Delta logo]()
$362
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:10 am
BIS
- ORD
2 stops9h 12m
Delta
Sat 8/296:25 am
ORD
- BIS
1 stop6h 12m
Delta
Deal found 5/12![Delta logo]()
$362
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:00 am
BIS
- MDW
1 stop5h 09m
Delta
Wed 6/177:16 pm
MDW
- BIS
1 stop4h 05m
Delta
Deal found 5/13![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 5/14. 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.
Tue 6/95:42 pm
BIS
- ORD
1 stop3h 43m
Delta
Wed 6/175:57 pm
ORD
- BIS
1 stop5h 24m
Delta
Deal found 5/14![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 5/14. 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.
Fri 8/2111:10 am
BIS
- MDW
1 stop6h 51m
Delta
Sun 8/239:59 am
MDW
- BIS
1 stop6h 56m
Delta
Deal found 5/14![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 8/285:00 am
BIS
- ORD
1 stop6h 37m
Delta
Sun 8/306:25 am
ORD
- BIS
1 stop4h 05m
Delta
Deal found 5/10![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 7/105:40 pm
BIS
- ORD
1 stop4h 12m
Delta
Sun 7/126:30 am
ORD
- BIS
1 stop4h 10m
Delta
Deal found 5/10![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:00 am
BIS
- MDW
2 stops7h 38m
Delta
Sun 7/127:06 pm
MDW
- BIS
1 stop4h 05m
Delta
Deal found 5/12![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 8/285:00 am
BIS
- MDW
2 stops7h 39m
Delta
Sun 8/307:25 pm
MDW
- BIS
1 stop3h 47m
Delta
Deal found 5/10![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:31 am
BIS
- MDW
2 stops11h 06m
Delta
Sat 10/109:30 am
MDW
- BIS
2 stops7h 24m
Delta
Deal found 5/13![Delta logo]()
$457
Last-minute flights from Bismarck to IllinoisDiscover last-minute flight deals from Bismarck to Illinois. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Illinois. Data last updated May 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:00 am
BIS
- STL
1 stop5h 32m
Delta
Mon 5/256:21 am
STL
- BIS
1 stop4h 08m
Delta
Deal found 5/12![Delta logo]()
$414
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Sat 5/236:00 am
BIS
- STL
1 stop6h 49m
American Airlines
Mon 5/257:00 am
STL
- BIS
1 stop5h 12m
American Airlines
Deal found 5/13![American Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Thu 5/2812:42 pm
BIS
- STL
1 stop7h 48m
American Airlines
Tue 6/26:35 am
STL
- BIS
1 stop5h 49m
American Airlines
Deal found 5/12![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 5/2812:42 pm
BIS
- ORD
Nonstop2h 26m
American Airlines
Thu 6/49:45 am
ORD
- BIS
Nonstop2h 32m
American Airlines
Deal found 5/10![American Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 5/11. 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.
Sat 5/3012:42 pm
BIS
- ORD
Nonstop2h 26m
American Airlines
Tue 6/210:00 am
ORD
- BIS
Nonstop2h 24m
American Airlines
Deal found 5/11![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 5/3012:42 pm
BIS
- ORD
Nonstop2h 26m
American Airlines
Sun 7/510:00 am
ORD
- BIS
Nonstop2h 31m
American Airlines
Deal found 5/12![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 6/35:42 pm
BIS
- ORD
1 stop3h 38m
Delta
Wed 6/106:30 am
ORD
- BIS
1 stop4h 06m
Delta
Deal found 5/10![Delta logo]()
$352
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 6/912:47 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Wed 6/179:45 am
ORD
- BIS
Nonstop2h 32m
American Airlines
Deal found 5/14![American Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:00 am
BIS
- MDW
1 stop5h 09m
Delta
Wed 6/177:16 pm
MDW
- BIS
1 stop4h 05m
Delta
Deal found 5/12![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/911:16 am
BIS
- ORD
1 stop5h 46m
Delta
Wed 6/175:57 pm
ORD
- BIS
1 stop5h 24m
Delta
Deal found 5/12![Delta logo]()
$384
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/1012:47 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Wed 6/179:45 am
ORD
- BIS
Nonstop2h 32m
American Airlines
Deal found 5/13![American Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/102:00 pm
BIS
- STL
1 stop7h 37m
American Airlines
Wed 6/177:03 am
STL
- BIS
1 stop5h 14m
American Airlines
Deal found 5/13![American Airlines logo]()
$423
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 May 14, 2026.
Search for one-way flight options from Bismarck to Illinois. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 7/1212:06 pm
BIS
- ORD
1 stop17h 22m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:14 pm
BIS
- ORD
1 stop32h 21m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 7/212:06 pm
BIS
- ORD
1 stop17h 01m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 11/89:36 pm
BIS
- ORD
1 stop14h 21m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/912:34 pm
BIS
- ORD
1 stop16h 54m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 7/512:06 pm
BIS
- ORD
1 stop17h 22m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 10/306:45 am
BIS
- STL
1 stop8h 00m
American Airlines
Deal found 5/10![American Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” 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 7/1212:06 pm
BIS
- MDW
3 stops47h 01m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 5/3112:04 pm
BIS
- MDW
3 stops47h 08m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/712:02 pm
BIS
- MDW
3 stops34h 00m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Sun 8/212:06 pm
BIS
- MDW
2 stops47h 01m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:14 pm
BIS
- MDW
1 stop4h 42m
Delta
Deal found 5/13![Delta logo]()
$383
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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $295 (American Airlines) |
One-way from | $196 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $393 |
Good round-trip deal | $388 or less |
Good one-way deal | $241 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 May 14, 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
Wed 10/7
5:00 am-8:49 am
1 stop3h 49m
Chicago Midway
Tue 10/13
9:55 am-4:54 pm
1 stop6h 59m
$315
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Sat 10/10
12:35 pm-4:54 pm
1 stop4h 19m
Lambert-St Louis
Sat 10/17
6:30 am-11:54 am
1 stop5h 24m
$319
BismarckChicago
BIS - ORD
BISORD
Bismarck
Tue 10/6
3:00 pm-7:34 pm
1 stop4h 34m
Chicago O'Hare Intl
Sat 10/10
7:05 am-4:54 pm
2 stops9h 49m
$320
BismarckChicago
BIS - ORD
BISORD
Bismarck
Tue 11/3
7:31 am-6:40 pm
2 stops11h 09m
Chicago O'Hare Intl
Sat 11/7
7:05 am-4:54 pm
2 stops9h 49m
$325
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Thu 5/28
12:42 pm-8:30 pm
1 stop7h 48m
Lambert-St Louis
Tue 6/2
6:35 am-12:24 pm
1 stop5h 49m
$329
BismarckChicago
BIS - ORD
BISORD
Bismarck
Sat 8/1
5:40 pm-9:52 pm
1 stop4h 12m
Chicago O'Hare Intl
Wed 8/5
6:25 am-10:30 am
1 stop4h 05m
$347
Quickest round-trip
BismarckChicago
BIS - ORD
BISORD
Bismarck
Wed 6/3
5:42 pm-9:20 pm
1 stop3h 38m
Chicago O'Hare Intl
Wed 6/10
6:30 am-10:36 am
1 stop4h 06m
$352
BismarckChicago
BIS - ORD
BISORD
Bismarck
Wed 6/10
8:00 am-3:05 pm
1 stop7h 05m
Chicago O'Hare Intl
Wed 6/17
5:57 pm-11:21 pm
1 stop5h 24m
$352
BismarckChicago
BIS - MDW
BISMDW
Bismarck
Thu 8/27
1:27 pm-6:01 pm
1 stop4h 34m
Chicago Midway
Sat 8/29
9:59 am-4:55 pm
1 stop6h 56m
$357
BismarckChicago
BIS - ORD
BISORD
Bismarck
Tue 10/6
3:00 pm-9:34 pm
1 stop6h 34m
Chicago O'Hare Intl
Mon 10/12
6:00 am-11:54 am
1 stop5h 54m
$357
Showing 1-10 of 47 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
What is the cheapest month to book a flight from Bismarck to Illinois?
Currently, August is the cheapest month in which you can book a flight from Bismarck to Illinois (average of $199). Flying from Bismarck to Illinois in March is currently the most expensive (average of $361). 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 BIS to IL?
Find hourly flight availability from Bismarck 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 May 14, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bismarck to Illinois as you normally would.
Weekly flight availability from Bismarck to Illinois
Explore weekly flight availability from Bismarck 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 May 14, 2026.
The most flights from BIS to USIL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Bismarck to Illinois?
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 May 14, 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.
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
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Bismarck to Illinois flights
Consider these flights traveling from Bismarck to Illinois.
Top airline flying from Bismarck to Illinois
Discover the top airline 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 May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$310 | FlexibilityNo cancel fee | On-time71% |