ONT - BIS

$349 Find Cheap Flights from Ontario to Bismarck

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Bismarck departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Bismarck

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Bismarck, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Bismarck, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$349
American Airlines
Wed 4/29Sat 5/2
ONT - BIS • 1 stop
Cheapest one-way
$352
United Airlines
Wed 11/26
ONT - BIS • 1 stop
Top airlines
American Airlines
Cheapest • from $349 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Bismarck!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Bismarck (ONT-BIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Bismarck that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Bismarck

Wed, Apr 29 - Sat, May 2
American Airlines Logo
12:55 pm - 9:27 pmONT-BIS
6h 32m1 stop
American Airlines Logo
6:33 am - 1:33 pmBIS-ONT
9h 00m1 stop
$349American Airlines
Find Deal
Wed, Apr 29 - Sat, May 2
American Airlines Logo
8:05 pm - 12:01 pmONT-BIS
13h 56m2 stops
American Airlines Logo
6:33 am - 1:33 pmBIS-ONT
9h 00m1 stop
$354American Airlines
Find Deal
Wed, Apr 29 - Sat, May 2
United Airlines Logo
1:34 pm - 11:37 pmONT-BIS
8h 03m1 stop
United Airlines Logo
5:07 pm - 8:17 pmBIS-ONT
5h 10m1 stop
$379United Airlines
Find Deal
Wed, Apr 29 - Sat, May 2
Delta Logo
7:00 am - 7:53 pmONT-BIS
10h 53m2 stops
Delta Logo
11:30 am - 10:40 pmBIS-ONT
13h 10m2 stops
$409Delta
Find Deal
Wed, Apr 29 - Sat, May 2
American Airlines Logo
8:05 pm - 12:01 pmONT-BIS
13h 56m2 stops
American Airlines Logo
2:04 pm - 9:36 pmBIS-ONT
9h 32m2 stops
$416American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Bismarck flights

Get data-powered insights and trends into flights from Ontario to Bismarck to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Bismarck?

The average price of all round-trip flights from Ontario to Bismarck clicked on KAYAK for each day over the last 12 months.

For Ontario to Bismarck, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Bismarck back to Ontario, the best deals are generally found on Saturday, with Monday being the most expensive.

Good to know

Cheapest flight$349
Flight from Ontario to Bismarck

When to book flights from Ontario to Bismarck

Are your dates flexible? Find out the best times to travel from Ontario to Bismarck based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Bismarck

  • What is the cheapest flight from Ontario to Bismarck?

    In the last 3 days, the lowest price for a flight from Ontario to Bismarck was $352 for a one-way ticket and $349 for a round-trip.

  • Do I need a passport to fly between Ontario and Bismarck?

    No, a passport isn't needed to fly from Ontario to Bismarck. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Ontario to Bismarck?

    Ontario airport is called Ontario and the only airport in Bismarck is Bismarck.

  • Which aircraft models fly most regularly from Ontario to Bismarck?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Bismarck?

    Star Alliance is the only airline alliance operating flights between Ontario and Bismarck.

  • How does KAYAK find such low prices on flights from Ontario to Bismarck?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Bismarck.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Bismarck?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bismarck from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Bismarck?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bismarck with an airline and back to Ontario with another airline. Booking your flights between Ontario and BIS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Bismarck?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bismarck from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Bismarck

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Bismarck. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Bismarck? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9015 reviews
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

4.0 OkayThomas, Nov 2025SFO - KOA
Read more United Airlines reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything you need to know for your flight from Ontario to Bismarck

Information on your arrival and departure airports