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Bismarck

$316+ Cheap flights from Ontario to Bismarck (ONT - BIS)

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BIS
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheap flight deals from Ontario to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bismarck (BIS). 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$316
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$435
Provider with most accurate pricing for Ontario-Bismarck flight deals.
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Provider most trusted by Cheapflights users for Ontario-Bismarck flights.
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From Ontario to Bismarck
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ontario to Bismarck

Cheapest flights from Ontario to Bismarck
Explore the most affordable flight options available from Ontario to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/26. 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.
mar. 11/1112:46 pmONT - BIS
1 stop7h 36mAmerican Airlines
mar. 11/183:02 pmBIS - ONT
1 stop9h 27mAmerican Airlines
Deal found 10/26$316
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/111:40 pmONT - BIS
2 stops7h 59mUnited Airlines
mar. 11/189:08 amBIS - ONT
2 stops10h 26mUnited Airlines
Deal found 10/26$352
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:00 amONT - BIS
1 stop12h 08mMultiple Airlines
sáb. 12/2710:15 pmBIS - ONT
1 stop21h 47mMultiple Airlines
Deal found 10/25$491
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/135:05 amONT - BIS
1 stop5h 49mUnited Airlines
jue. 1/15:10 pmBIS - ONT
1 stop5h 57mUnited Airlines
Deal found 10/28$509
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/265:05 amONT - BIS
1 stop6h 05mUnited Airlines
lun. 12/298:10 amBIS - ONT
1 stop6h 28mUnited Airlines
Deal found 10/26$679
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:00 amONT - BIS
2 stops36h 16mUnited Airlines
sáb. 12/278:10 amBIS - ONT
2 stops27h 51mUnited Airlines
Deal found 10/25$852

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Bismarck 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 octubre 28, 2025.
Use the filters below to find and compare flights from Ontario to Bismarck that are best for you.

Fly from

Ontario

Fly to

Bismarck

Route

Depart

Return

Price

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mar. 11/11

12:46 pm-10:22 pm

1 stop7h 36m

Bismarck

mar. 11/18

3:02 pm-10:29 pm

1 stop9h 27m

$316

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mar. 11/11

1:40 pm-11:39 pm

2 stops7h 59m

Bismarck

mar. 11/18

9:08 am-5:34 pm

2 stops10h 26m

$352

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mar. 12/23

6:00 am-8:08 pm

1 stop12h 08m

Bismarck

sáb. 12/27

10:15 pm-6:02 pm

1 stop21h 47m

$491

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

sáb. 12/13

5:05 am-12:54 pm

1 stop5h 49m

Bismarck

jue. 1/1

5:10 pm-9:07 pm

1 stop5h 57m

$509

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

vie. 12/26

5:05 am-1:10 pm

1 stop6h 05m

Bismarck

lun. 12/29

8:10 am-12:38 pm

1 stop6h 28m

$679

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mar. 12/23

6:00 am-8:16 pm

2 stops36h 16m

Bismarck

sáb. 12/27

8:10 am-10:01 am

2 stops27h 51m

$852

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mié. 11/26

1:29 pm-8:51 pm

1 stop5h 22m

$335

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

lun. 1/19

5:05 am-8:28 pm

1 stop13h 23m

$337

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mar. 11/11

5:05 am-1:11 pm

1 stop6h 06m

$342

OntarioBismarck

ONT - BIS

ONTBIS

Ontario

mié. 11/12

5:05 am-1:11 pm

1 stop6h 06m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 11 results
1
2

Compare providers for flights from Ontario to Bismarck

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 Ontario to Bismarck in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Ontario-Bismarck flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Bismarck flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Bismarck flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Bismarck flights, Cheapflights users trust eDreams the most. eDreams 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 Ontario-Bismarck 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 Ontario to Bismarck

Have a flexible travel schedule? Discover the best time to fly to Bismarck from Ontario 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 Ontario to Bismarck

What is the cheapest month to book a flight from Ontario to Bismarck?

Currently, March is the cheapest month in which you can book a flight from Ontario to Bismarck (average of $201). Flying from Ontario to Bismarck in April is currently the most expensive (average of $846). 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.

Reviews of airlines servicing Bismarck

Get insights into the airlines that provide service to Bismarck. 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 Bismarck. Reviews last updated octubre 28, 2025.
See what other customers who have flown with United Airlines from Ontario to Bismarck have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Bismarck. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Bismarck?

    There are many flights that can get you from Ontario to Bismarck in 7h 36m. Fly via American Airlines or United Airlines to get the fastest option. The distance from Ontario to Bismarck is about 1242 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Ontario to Bismarck round-trip?

    Cheapflights users have booked flights from Ontario to Bismarck round-trip from $319.

  • Can I find deals for flights from Ontario to Bismarck that include hotel bookings?

    Yes. In addition to deals on Ontario to Bismarck flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Bismarck?

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

  • Can I find deals for business class flights from Ontario to Bismarck?

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

  • What is the cheapest month to book a flight from Ontario to Bismarck?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Bismarck (average of $201). Flying from Ontario to Bismarck in April is currently the most expensive (average of $846). 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.

See more FAQs

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Top airline flying from Ontario to Bismarck

Discover the top airline that operate flights from Ontario to Bismarck. 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$319Average$380FlexibilityNo cancel feeOn-time69%

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