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Ontario

$382+ Cheap flights from Bismarck to Ontario (BIS - ONT)

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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ONT
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
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Cheap flight deals from Bismarck to Ontario

Cheapest flights from Bismarck to Ontario
Explore the most affordable flight options available from Bismarck to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This United Airlines deal was found by Cheapflights users on 6/6. 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 11/145:07 pm
BIS
-
ONT
1 stop5h 13m
United Airlines
Mon 11/165:00 am
ONT
-
BIS
1 stop5h 48m
United Airlines
Deal found 6/6$613
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:05 am
BIS
-
ONT
2 stops8h 07m
United Airlines
Tue 7/145:00 am
ONT
-
BIS
1 stop13h 28m
United Airlines
Deal found 6/8$729
This American Airlines deal was found by Cheapflights users on 6/6. 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 7/26:00 am
BIS
-
ONT
2 stops14h 18m
American Airlines
Mon 7/67:15 pm
ONT
-
BIS
2 stops15h 01m
American Airlines
Deal found 6/6$734
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/249:16 am
BIS
-
ONT
1 stop5h 31m
United Airlines
Sun 6/281:18 pm
ONT
-
BIS
1 stop5h 10m
United Airlines
Deal found 6/8$789
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/29:16 am
BIS
-
ONT
1 stop5h 31m
United Airlines
Mon 7/61:18 pm
ONT
-
BIS
1 stop5h 10m
United Airlines
Deal found 6/6$842

Find flight deals from Bismarck to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to Ontario (ONT). 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 June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$613
(United Airlines)

One-way from

$382
(United Airlines)

Popular in

October

Cheapest in

August

Average price

$420
Provider with most accurate pricing for Bismarck-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bismarck-Ontario flights.
Search Deals
From Bismarck to Ontario
Search Deals
One-way flight from Bismarck to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck to Ontario 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 June 11, 2026.
Use the filters below to find and compare flights from Bismarck to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BismarckOntario

BIS - ONT

BISONT

Bismarck

Sat 11/14

5:07 pm-8:20 pm

1 stop5h 13m

Ontario

Mon 11/16

5:00 am-12:48 pm

1 stop5h 48m

$613
Quickest round-trip

BismarckOntario

BIS - ONT

BISONT

Bismarck

Wed 7/8

9:16 am-12:47 pm

1 stop5h 31m

Ontario

Tue 7/14

1:18 pm-8:28 pm

1 stop5h 10m

$792

BismarckOntario

BIS - ONT

BISONT

Bismarck

Wed 6/24

6:00 am-12:12 pm

2 stops8h 12m

Ontario

Sun 6/28

1:18 pm-8:28 pm

1 stop5h 10m

$812

BismarckOntario

BIS - ONT

BISONT

Bismarck

Thu 7/2

9:16 am-12:47 pm

1 stop5h 31m

Ontario

Mon 7/6

1:18 pm-8:28 pm

1 stop5h 10m

$842

BismarckOntario

BIS - ONT

BISONT

Bismarck

Tue 7/7

9:16 am-12:47 pm

1 stop5h 31m

Ontario

Tue 7/14

1:18 pm-8:28 pm

1 stop5h 10m

$980
Cheapest one-way
Quickest one-way

BismarckOntario

BIS - ONT

BISONT

Bismarck

Tue 6/16

9:16 am-12:47 pm

1 stop5h 31m

$382

BismarckOntario

BIS - ONT

BISONT

Bismarck

Mon 7/20

9:16 am-12:47 pm

1 stop5h 31m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Sorted by cheapest first

Compare providers for flights from Bismarck to Ontario

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 Ontario in June.
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-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bismarck-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bismarck-Ontario 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-Ontario 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 Ontario

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

Related info for your journey

Find useful and relevant information for your journey from Bismarck to Ontario. 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 Bismarck to Ontario?

    For as low as $613, United Airlines can have you in Ontario from Bismarck in 5h 13m. The distance between Bismarck and Ontario is about 1242 mi.

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

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

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

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

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

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

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