$194+ Cheap flights from Bismarck (BIS) to O'Hare Intl (ORD)
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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Bismarck to O'Hare Intl 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Bismarck to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Bismarck to O'Hare IntlExplore the most affordable flight options available from Bismarck to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from Bismarck to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/31:06 pm -
Nonstop2h 19m
Sat 11/79:59 am -
Nonstop2h 34m
Deal found 9/10![American Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 9/10. 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 11/35:00 am -
2 stops7h 59m
Sat 11/75:30 pm -
1 stop5h 55m
Deal found 9/10![Delta logo]()
$350
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/612:56 pm -
Nonstop2h 18m
Sat 10/109:53 am -
Nonstop2h 30m
Deal found 9/10![American Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/612:40 pm -
1 stop4h 00m
Sat 10/105:30 pm -
1 stop5h 55m
Deal found 9/7![Delta logo]()
$365
This American Airlines deal was found by Cheapflights users on 9/10. 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 12/101:11 pm -
Nonstop2h 19m
Tue 12/1510:00 am -
Nonstop2h 33m
Deal found 9/10![American Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/712:56 pm -
Nonstop2h 18m
Sat 10/109:53 am -
Nonstop2h 30m
Deal found 9/10![American Airlines logo]()
$381
Best flights from Bismarck to O'Hare IntlDiscover carefully curated flight deals from Bismarck to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Bismarck to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 10/63:18 pm -
1 stop6h 09m
Sat 10/103:30 pm -
1 stop4h 25m
Deal found 9/10![Delta logo]()
$382
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 9/221:57 pm -
1 stop6h 33m
Sat 9/266:00 am -
1 stop7h 27m
Deal found 9/7![American Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/245:00 pm -
1 stop6h 59m
Sun 9/275:00 am -
1 stop8h 01m
Deal found 9/10![United Airlines logo]()
$629
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 -
1 stop3h 53m
Tue 10/136:20 am -
1 stop5h 40m
Deal found 9/7![Delta logo]()
$392
This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 10/712:40 pm -
1 stop4h 00m
Sat 10/101:55 pm -
2 stops9h 30m
Deal found 9/11![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/1512:40 pm -
1 stop6h 58m
Sat 10/1711:09 am -
2 stops8h 46m
Deal found 9/8![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/612:40 pm -
1 stop4h 00m
Mon 10/123:30 pm -
1 stop4h 25m
Deal found 9/11![Delta logo]()
$529
Last-minute flights from Bismarck to O'Hare IntlDiscover last-minute flight deals from Bismarck to O'Hare Intl. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to O'Hare Intl. Data last updated September 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/612:56 pm -
Nonstop2h 18m
Sat 10/109:53 am -
Nonstop2h 30m
Deal found 9/7![American Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 10/612:40 pm -
1 stop4h 00m
Sat 10/105:30 pm -
1 stop5h 55m
Deal found 9/7![Delta logo]()
$365
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/712:56 pm -
Nonstop2h 18m
Sat 10/109:53 am -
Nonstop2h 30m
Deal found 9/10![American Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” 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 -
1 stop3h 53m
Sat 10/105:30 pm -
1 stop5h 55m
Deal found 9/7![Delta logo]()
$392
One-way flights from Bismarck to O'Hare IntlSearch for one-way flight options from Bismarck to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Bismarck to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:18 pm -
1 stop13h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:36 pm -
1 stop31h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/1810:45 pm -
2 stops31h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 11/510:44 pm -
2 stops34h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$238
Find flight deals from Bismarck to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $325 (American Airlines) |
One-way from | $194 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $303 |
Good round-trip deal | $438 or less |
Good one-way deal | $268 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Bismarck to O'Hare Intl 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 September 12, 2026.
Use the filters below to find and compare flights from Bismarck to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Mon 12/7
3:45 pm-2:53 pm
1 stop23h 08m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$277
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Wed 11/11
12:37 pm-9:04 am
1 stop20h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$277
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Fri 12/4
5:41 pm-4:43 pm
1 stop23h 02m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$358
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Sat 11/7
8:11 am-4:41 pm
1 stop8h 30m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$368
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Tue 3/9
7:31 am-7:34 pm
1 stop12h 03m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$371
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Tue 10/6
3:18 pm-9:27 pm
1 stop6h 09m
Chicago O'Hare Intl
Sat 10/10
3:30 pm-7:55 pm
1 stop4h 25m
$382
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Sun 3/7
7:31 am-7:34 pm
1 stop12h 03m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$391
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Fri 3/5
5:30 pm-8:43 am
1 stop15h 13m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$391
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Wed 10/7
5:00 am-8:53 am
1 stop3h 53m
Chicago O'Hare Intl
Tue 10/13
6:20 am-12:00 pm
1 stop5h 40m
$392
BismarckChicago
BIS Bismarck - ORD Chicago O'Hare Intl
BISORD
Bismarck
Wed 10/7
12:40 pm-9:27 pm
1 stop8h 47m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$394
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Bismarck to O'Hare Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bismarck to O'Hare Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Bismarck-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bismarck-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bismarck-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bismarck-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Bismarck to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Bismarck with our price prediction graph.
BIS-ORD
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 Chicago O'Hare Intl Airport
Prices
Airlines
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated September 12, 2026.
See what other customers who have flown with Delta and American Airlines from Bismarck to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Overall
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Bismarck to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Lake Geneva
Naperville
Des Plaines
Glenview
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Libertyville
Orland Park
Hoffman Estates
Aurora
Beloit
Rockford
South Holland
Elgin
Racine
Janesville
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Other flights to O'Hare Intl
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Bismarck and O'Hare Intl flights
Browse other Bismarck and O'Hare Intl flight options. Last updated on September 12, 2026.
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Browse through other flights departing from Bismarck. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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Top 2 airlines flying from Bismarck to O'Hare Intl
Discover the top 2 airlines that operate flights from Bismarck to O'Hare Intl. 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 September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$267 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$286 | Average$427 | FlexibilityNo cancel fee | On-time71% |