$290+ Cheap flights from Bismarck (BIS) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Dec 15 — Dec 221
Round-trip
1 adult, Economy
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Find cheap flights from Bismarck to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 November 15, 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 November 15, 2026.
This Delta deal was found by Cheapflights users on 11/11. 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 12/128:00 am -
1 stop3h 59m
Sat 12/1911:47 am -
1 stop5h 03m
Deal found 11/11![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 11/11. 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 12/125:20 pm -
1 stop4h 15m
Sat 12/1912:33 pm -
1 stop4h 17m
Deal found 11/11![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 11/10. 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.
Tue 12/158:00 am -
2 stops10h 26m
Wed 12/303:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$400
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/121:08 pm -
Nonstop2h 27m
Sat 12/199:45 am -
Nonstop2h 39m
Deal found 11/11![American Airlines logo]()
$412
This American Airlines deal was found by Cheapflights users on 11/14. 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.
Wed 12/21:17 pm -
Nonstop2h 27m
Wed 12/1610:05 am -
Nonstop2h 42m
Deal found 11/14![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 12/145:41 pm -
1 stop18h 03m
Wed 12/303:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$425
This Delta deal was found by Cheapflights users on 11/14. 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 12/25:00 am -
1 stop6h 44m
Wed 12/1612:34 pm -
1 stop7h 12m
Deal found 11/14![Delta logo]()
$427
This Delta deal was found by Cheapflights users on 11/10. 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.
Tue 12/153:45 pm -
1 stop5h 50m
Mon 12/283:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$437
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Tue 12/151:17 pm -
Nonstop2h 27m
Tue 12/299:45 am -
Nonstop2h 39m
Deal found 11/10![American Airlines logo]()
$451
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 11/146:42 am -
1 stop7h 30m
Sat 11/2110:00 am -
Nonstop2h 49m
Deal found 11/10![American Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 11/10. 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.
Sat 11/145:00 am -
1 stop6h 50m
Sat 11/2112:30 pm -
1 stop7h 01m
Deal found 11/10![Delta logo]()
$469
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 12/115:00 am -
2 stops8h 01m
Mon 12/145:30 pm -
1 stop6h 06m
Deal found 11/11![Delta logo]()
$484
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 November 15, 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 November 15, 2026.
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Tue 2/1612:50 pm -
Nonstop2h 24m
Tue 2/239:40 am -
Nonstop2h 40m
Deal found 11/11![American Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 11/11. 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 12/128:00 am -
2 stops10h 01m
Sat 12/1911:47 am -
1 stop5h 03m
Deal found 11/11![Delta logo]()
$400
This United Airlines deal was found by Cheapflights users on 11/11. 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 2/161:10 pm -
2 stops17h 14m
Tue 2/2310:35 am -
2 stops13h 09m
Deal found 11/11![United Airlines logo]()
$655
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 12/145:41 pm -
1 stop18h 03m
Wed 12/303:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$425
This Delta deal was found by Cheapflights users on 11/11. 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 12/125:00 am -
2 stops11h 17m
Sat 12/1912:33 pm -
1 stop4h 17m
Deal found 11/11![Delta logo]()
$432
This American Airlines deal was found by Cheapflights users on 11/12. 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.
Fri 12/111:17 pm -
Nonstop2h 27m
Sun 12/1310:05 am -
Nonstop2h 42m
Deal found 11/12![American Airlines logo]()
$502
This Delta deal was found by Cheapflights users on 11/10. 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 12/115:41 pm -
1 stop3h 54m
Mon 12/146:20 am -
1 stop5h 41m
Deal found 11/10![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 1/301:23 pm -
1 stop6h 38m
Tue 2/27:05 am -
2 stops13h 27m
Deal found 11/11![United Airlines logo]()
$655
This Delta deal was found by Cheapflights users on 11/10. 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.
Thu 2/48:02 am -
1 stop4h 00m
Sun 2/77:00 am -
2 stops9h 58m
Deal found 11/10![Delta logo]()
$514
This Delta deal was found by Cheapflights users on 11/12. 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 12/105:00 am -
1 stop6h 44m
Thu 12/175:02 pm -
2 stops6h 34m
Deal found 11/12![Delta logo]()
$537
This Delta deal was found by Cheapflights users on 11/14. 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 12/153:45 pm -
1 stop5h 50m
Mon 12/2812:33 pm -
1 stop4h 17m
Deal found 11/14![Delta logo]()
$562
This Delta deal was found by Cheapflights users on 11/10. 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.
Thu 2/48:02 am -
2 stops9h 58m
Sun 2/79:38 am -
2 stops7h 20m
Deal found 11/10![Delta logo]()
$579
This Delta deal was found by Cheapflights users on 11/10. 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 12/115:00 am -
1 stop6h 59m
Mon 12/145:30 pm -
1 stop6h 06m
Deal found 11/10![Delta logo]()
$599
This Delta deal was found by Cheapflights users on 11/12. 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 12/105:00 am -
2 stops8h 01m
Thu 12/179:37 am -
2 stops7h 22m
Deal found 11/12![Delta logo]()
$649
This Delta deal was found by Cheapflights users on 11/13. 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 12/45:00 am -
1 stop6h 59m
Mon 12/712:39 pm -
1 stop7h 07m
Deal found 11/13![Delta logo]()
$717
This Delta deal was found by Cheapflights users on 11/13. 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 12/128:00 am -
1 stop3h 59m
Sun 12/135:30 pm -
1 stop6h 06m
Deal found 11/13![Delta logo]()
$749
This Delta deal was found by Cheapflights users on 11/12. 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 12/115:00 am -
2 stops8h 01m
Sun 12/139:37 am -
2 stops7h 22m
Deal found 11/12![Delta logo]()
$832
This Delta deal was found by Cheapflights users on 11/13. 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 11/285:00 am -
1 stop3h 50m
Wed 12/25:30 pm -
1 stop6h 06m
Deal found 11/13![Delta logo]()
$899
This Delta deal was found by Cheapflights users on 11/14. 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.
Thu 2/412:39 pm -
1 stop4h 14m
Fri 2/1912:42 pm -
1 stop6h 49m
Deal found 11/14![Delta logo]()
$904
This Delta deal was found by Cheapflights users on 11/11. 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 12/265:00 am -
1 stop6h 03m
Sat 1/165:40 pm -
1 stop6h 03m
Deal found 11/11![Delta logo]()
$942
Last-minute flights from Bismarck to IllinoisDiscover last-minute flight deals from Bismarck to Illinois. Data last updated November 15, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Illinois. Data last updated November 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Sat 11/146:42 am -
1 stop7h 30m
Sat 11/2110:00 am -
Nonstop2h 49m
Deal found 11/10![American Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 11/10. 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.
Sat 11/145:00 am -
1 stop6h 50m
Sat 11/2112:30 pm -
1 stop7h 01m
Deal found 11/10![Delta logo]()
$469
This American Airlines deal was found by Cheapflights users on 11/14. 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.
Wed 12/21:17 pm -
Nonstop2h 27m
Wed 12/1610:05 am -
Nonstop2h 42m
Deal found 11/14![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 11/14. 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 12/25:00 am -
1 stop6h 44m
Wed 12/1612:34 pm -
1 stop7h 12m
Deal found 11/14![Delta logo]()
$427
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 12/115:00 am -
2 stops8h 01m
Mon 12/145:30 pm -
1 stop6h 06m
Deal found 11/11![Delta logo]()
$484
This Delta deal was found by Cheapflights users on 11/11. 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 12/128:00 am -
1 stop3h 59m
Sat 12/1911:47 am -
1 stop5h 03m
Deal found 11/11![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 11/11. 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 12/125:20 pm -
1 stop4h 15m
Sat 12/1912:33 pm -
1 stop4h 17m
Deal found 11/11![Delta logo]()
$395
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/121:08 pm -
Nonstop2h 27m
Sat 12/199:45 am -
Nonstop2h 39m
Deal found 11/11![American Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 12/145:41 pm -
1 stop18h 03m
Wed 12/303:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$425
This Delta deal was found by Cheapflights users on 11/10. 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.
Tue 12/158:00 am -
2 stops10h 26m
Wed 12/303:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$400
This Delta deal was found by Cheapflights users on 11/10. 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.
Tue 12/153:45 pm -
1 stop5h 50m
Mon 12/283:29 pm -
1 stop4h 04m
Deal found 11/10![Delta logo]()
$437
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Tue 12/151:17 pm -
Nonstop2h 27m
Tue 12/299:45 am -
Nonstop2h 39m
Deal found 11/10![American Airlines logo]()
$451
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 November 15, 2026.
Search for one-way flight options from Bismarck to Illinois. Find affordable one-way fares based on user searches. Data last updated November 15, 2026.
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Fri 1/112:54 pm -
Nonstop2h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![American Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Wed 12/912:37 pm -
1 stop21h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 11/13. 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 1/13:54 pm -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Delta logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 1/18:51 pm -
2 stops51h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Wed 12/91:17 pm -
Nonstop2h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![American Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/179:04 pm -
2 stops43h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Thu 12/1712:54 pm -
Nonstop2h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![American Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Fri 12/182:09 pm -
1 stop8h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![American Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 11/11. 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.
Thu 12/178:00 am -
1 stop6h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 11/13. 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 1/112:41 pm -
1 stop4h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Delta logo]()
$485
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 1/18:51 pm -
3 stops39h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$670
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 November 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $395 (Delta) |
One-way from | $290 (American Airlines) |
Popular in | November |
Cheapest in | January |
Average price | $762 |
Good round-trip deal | $488 or less |
Good one-way deal | $296 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 7,457,451 searches. Data last updated November 15, 2026.
Use the filters below to find and compare flights from Bismarck to Illinois that are best for you.
Fly from
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Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Fri 1/1
12:54 pm-3:21 pm
Nonstop2h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$290
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Wed 12/9
12:37 pm-10:24 am
1 stop21h 47m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$301
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Tue 2/16
12:50 pm-3:14 pm
Nonstop2h 24m
Chicago O'Hare Intl
Tue 2/23
9:40 am-12:20 pm
Nonstop2h 40m
$375
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Fri 1/1
3:54 pm-9:39 pm
1 stop5h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$385
BismarckChicago
BIS Bismarck - MDW Chicago Midway
BISMDW
Bismarck
Sat 12/12
8:00 am-6:01 pm
2 stops10h 01m
Chicago Midway
Sat 12/19
11:47 am-4:50 pm
1 stop5h 03m
$400
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Wed 12/9
1:17 pm-3:44 pm
Nonstop2h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$413
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Mon 12/14
5:41 pm-11:44 am
1 stop18h 03m
Chicago O'Hare Intl
Wed 12/30
3:29 pm-7:33 pm
1 stop4h 04m
$425
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Sat 12/12
5:00 am-4:17 pm
2 stops11h 17m
Chicago O'Hare Intl
Sat 12/19
12:33 pm-4:50 pm
1 stop4h 17m
$432
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Thu 12/17
9:04 pm-4:57 pm
2 stops43h 53m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$436
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Thu 12/17
8:00 am-2:53 pm
1 stop6h 53m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$453
Showing 1-10 of 31 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
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
What is the cheapest month to book a flight from Bismarck to Illinois?
Currently, January is the cheapest month in which you can book a flight from Bismarck to Illinois (average of $298). Flying from Bismarck to Illinois in November is currently the most expensive (average of $535). 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 November 15, 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.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated November 15, 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.
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - 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
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 Bismarck to Illinois by cabin class
Find flights from Bismarck to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Bismarck and Illinois flights
Browse other Bismarck and Illinois flight options. Last updated on November 15, 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 7,457,451 searches. Data last updated November 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$267 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$300 | Average$474 | FlexibilityNo cancel fee | On-time71% |