$295 Cheap Flights from Ontario (ONT) to Bismarck (BIS)

View $295 flight on Fri, Jan 16, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck, ND (BIS-Bismarck Municipal)

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Cheap Flights from Ontario to Bismarck (ONT-BIS)

Prices were available within the past 7 days and start at $295 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$269 Roundtrip, found 11 hours ago
$269
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $269 found 11 hours ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$269 Roundtrip, found 11 hours ago
$269
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $269 found 11 hours ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$274 Roundtrip, found 11 hours ago
$274
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $274 found 11 hours ago
Delta
Wed, Dec 3 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$279 Roundtrip, found 4 days ago
$279
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Dec 3 from Ontario to Bismarck, returning Tue, Dec 9, priced at $279 found 4 days ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$285 Roundtrip, found 11 hours ago
$285
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $285 found 11 hours ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$290 Roundtrip, found 11 hours ago
$290
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $290 found 11 hours ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$293 Roundtrip, found 11 hours ago
$293
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $293 found 11 hours ago
Delta
Wed, Nov 5 - Sun, Nov 16
ONT
Ontario
BIS
Bismarck
$304 Roundtrip, found 6 days ago
$304
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 5 from Ontario to Bismarck, returning Sun, Nov 16, priced at $304 found 6 days ago
United
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$310 Roundtrip, found 11 hours ago
$310
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $310 found 11 hours ago
American Airlines
Fri, Dec 5 - Tue, Dec 9
ONT
Ontario
BIS
Bismarck
$316 Roundtrip, found 11 hours ago
$316
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Fri, Dec 5 from Ontario to Bismarck, returning Tue, Dec 9, priced at $316 found 11 hours ago

Alternative airports near Bismarck

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Bismarck Municipal BIS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $349
BIS
Bismarck Municipal
CheapestClosest
Average driving time to city center6 min
Flights from $349
Flights from Ontario (ONT) to Bismarck (BIS)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Bismarck Municipal
Airlines serving
American Airlines, United
Roundtrip price
$268
Distance
1242 mi

Ontario to Bismarck Flights

The cheapest times to fly from Ontario to Bismarck

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Bismarck are during the month of December. You can find some of the cheapest flights from Ontario to Bismarck with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Bismarck

Sunday is one of the best days to book for cheap flights from Ontario to Bismarck: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Bismarck

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Bismarck in 2025. You can also book with separate airlines for your outbound and return journeys, from $295 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Bismarck flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Bismarck airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS) cost?
Get a cheap one-way flight from $295 or cheap return flight from $269 from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS)?
Flying in December may help you find better deals, as it's the cheapest month for flights between ONT and BIS. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from ONT to BIS. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS)?
You'll have to take a flight with a layover when traveling from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from ONT to BIS?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS)?
Select a flight from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS) last-minute?
Booking your flight from ONT to BIS shortly before your getaway is typically more expensive. But if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book an ONT to BIS flight and hotel package?
Opting for an ONT to BIS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Bismarck Municipal Airport (BIS)?
In most instances, you can reschedule or cancel your ONT to BIS flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.