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O'Hare Intl

$175+ Cheap flights from Bismarck (BIS) to O'Hare Intl (ORD)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Cheap flight deals from Bismarck to O'Hare Intl

Cheapest flights from Bismarck to O'Hare Intl
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 July 29, 2026.

This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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
BIS
-
ORD
Nonstop2h 18m
American Airlines
Sat 10/109:53 am
ORD
-
BIS
Nonstop2h 30m
American Airlines
Deal found 7/26$305
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 11/39:00 am
BIS
-
ORD
2 stops7h 32m
Delta
Sat 11/76:20 am
ORD
-
BIS
1 stop5h 40m
Delta
Deal found 7/28$330
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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
BIS
-
ORD
Nonstop2h 18m
American Airlines
Sat 10/109:53 am
ORD
-
BIS
Nonstop2h 30m
American Airlines
Deal found 7/25$342
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/111:13 pm
BIS
-
ORD
Nonstop2h 27m
American Airlines
Sun 9/1310:06 am
ORD
-
BIS
Nonstop2h 30m
American Airlines
Deal found 7/26$347
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 10/72:07 pm
BIS
-
ORD
1 stop7h 53m
American Airlines
Tue 10/139:53 am
ORD
-
BIS
Nonstop2h 30m
American Airlines
Deal found 7/26$352
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/2712:58 pm
BIS
-
ORD
Nonstop2h 25m
American Airlines
Sat 8/291:50 pm
ORD
-
BIS
1 stop8h 54m
American Airlines
Deal found 7/25$357
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/115:40 pm
BIS
-
ORD
1 stop3h 53m
Delta
Sun 9/136:10 am
ORD
-
BIS
1 stop6h 27m
Delta
Deal found 7/28$367
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/265:42 pm
BIS
-
ORD
1 stop3h 54m
Delta
Sat 10/311:55 pm
ORD
-
BIS
2 stops9h 30m
Delta
Deal found 7/28$372

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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$305
(American Airlines)

One-way from

$175
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$495

Good round-trip deal

$420 or less

Good one-way deal

$294 or less
Provider with most accurate pricing for Bismarck-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Bismarck-Chicago O'Hare Intl flights.
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From Bismarck to Chicago O'Hare Intl
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One-way flight from Bismarck to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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Price to beat on a round-trip flight from Bismarck to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Bismarck to Chicago O'Hare Intl.
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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 2,558,603 searches. Data last updated July 29, 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

Price

Cheapest round-trip

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 9/5

5:36 pm-9:47 pm

1 stop4h 11m

Chicago O'Hare Intl

Sun 9/6

6:00 am-12:47 pm

1 stop6h 47m

$325

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 11/3

9:00 am-4:32 pm

2 stops7h 32m

Chicago O'Hare Intl

Sat 11/7

3:30 pm-7:50 pm

1 stop4h 20m

$350

BismarckChicago

BIS - ORD

BISORD

Bismarck

Fri 9/11

5:40 pm-9:33 pm

1 stop3h 53m

Chicago O'Hare Intl

Sun 9/13

6:10 am-12:37 pm

1 stop6h 27m

$367

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 8/27

1:27 pm-7:30 pm

1 stop6h 03m

Chicago O'Hare Intl

Sat 8/29

6:00 am-12:37 pm

1 stop6h 37m

$387
Quickest round-trip

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 8/8

1:01 pm-3:26 pm

Nonstop2h 25m

Chicago O'Hare Intl

Wed 8/12

3:54 pm-10:44 pm

1 stop6h 50m

$408

BismarckChicago

BIS - ORD

BISORD

Bismarck

Fri 9/4

1:27 pm-7:30 pm

1 stop6h 03m

Chicago O'Hare Intl

Mon 9/7

6:00 am-10:30 am

1 stop4h 30m

$444

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 10/6

8:11 am-4:32 pm

2 stops8h 21m

Chicago O'Hare Intl

Sat 10/10

3:30 pm-7:50 pm

1 stop4h 20m

$444
Cheapest one-way

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sun 8/23

2:38 pm-1:36 pm

2 stops22h 58m

$204
Quickest one-way

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 1/23

7:31 am-4:49 pm

1 stop9h 18m

$277

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 9/29

11:12 am-9:33 pm

1 stop10h 21m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

What is the cheapest time of day to fly from BIS to ORD?

Find hourly flight availability from Bismarck to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2026.

When flying from Bismarck to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 29, 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.
Delta
7.8
Good
8,486 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,486 reviews
Delta
7.8
Good
8,486 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,839 reviews
Delta
7.8
Good
8,486 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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.

  • What airport do you fly from for flights from Bismarck to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Bismarck, you will be flying from Bismarck, which is the city’s only airport. Bismarck (BIS) is located 2.5 mi from the center of Bismarck. There is 1 flight from Bismarck to Chicago O'Hare Intl per day from 2 different airlines.

  • How long is the flight from Bismarck to Chicago O'Hare Intl Airport?

    For as low as $325, Delta can have you in Chicago O'Hare Intl Airport from Bismarck in 4h 11m. The distance between Bismarck and Chicago O'Hare Intl Airport is about 714 mi.

  • What are the cheapest airlines flying from Bismarck to Chicago O'Hare Intl Airport round-trip?

    Currently priced at $259, American Airlines will fly you from Bismarck to Chicago O'Hare Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $267.

  • What are the most reliable airlines from Bismarck to Chicago O'Hare Intl Airport?

    Consider Qatar Airways (80%), American Airlines (80%) or Envoy Air (80%) when booking your flight. These represent the most reliable airlines when flying from Bismarck to Chicago O'Hare Intl Airport.

  • What are the cheapest flights from Bismarck to Chicago O'Hare Intl Airport?

    On average you can expect to pay $434 for a flight from Bismarck to Chicago O'Hare Intl Airport. The cheapest flight overall is $255 while the most popular route, (Bismarck - Chicago O'Hare Intl) is currently priced at $325.

  • Can I find deals for flights from Bismarck to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Bismarck to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bismarck to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bismarck to O'Hare Intl.

  • Can I find deals for business class flights from Bismarck to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Bismarck to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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 locations
Benton Harbor
Rosemont
Schaumburg
Naperville
Lake Geneva
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Aurora
Racine
Great Lakes
Janesville

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bismarck to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Fargo to O'Hare Intl flights
Fargo to Midway flights
Bismarck to Midway flights
Grand Forks to O'Hare Intl flights

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 2,558,603 searches. Data last updated July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$259Average$374FlexibilityNo cancel feeOn-time71%
DeltaCheapest$267Average$327FlexibilityNo cancel feeOn-timeN/A

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