BIS - ONT

$123 Find Cheap Flights from Bismarck to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bismarck to Ontario departing on 3/7. 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 Ontario

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

Cheapest round-trip
$281
Delta
Wed 4/8Wed 4/15
BIS - ONT • 2 stops
Cheapest one-way
$123
Multiple Airlines
Sat 3/7
BIS - ONT • 1 stop
Top airlines
Delta
Cheapest • from $281 (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 Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bismarck to Ontario (BIS-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bismarck to Ontario 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 Bismarck to Ontario

Wed, Apr 8 - Wed, Apr 15
Delta Logo
4:50 pm - 11:51 pm
BIS
-
ONT
9h 01m
2 stops
Delta Logo
7:00 am - 7:35 pm
ONT
-
BIS
10h 35m
2 stops
$281Delta
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
5:05 pm - 8:36 pm
BIS
-
ONT
5h 31m
1 stop
United Airlines Logo
1:34 pm - 11:43 pm
ONT
-
BIS
8h 09m
1 stop
$351United Airlines
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
1:45 pm - 10:45 pm
BIS
-
ONT
11h 00m
2 stops
United Airlines Logo
5:10 am - 12:58 pm
ONT
-
BIS
5h 48m
1 stop
$356United Airlines
Wed, Apr 8 - Tue, Apr 14
Delta Logo
4:50 pm - 11:51 pm
BIS
-
ONT
9h 01m
2 stops
Delta Logo
6:00 am - 7:35 pm
ONT
-
BIS
11h 35m
2 stops
$366Delta
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
5:05 pm - 8:36 pm
BIS
-
ONT
5h 31m
1 stop
United Airlines Logo
5:10 am - 12:58 pm
ONT
-
BIS
5h 48m
1 stop
$415United Airlines
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
1:45 pm - 10:45 pm
BIS
-
ONT
11h 00m
2 stops
United Airlines Logo
11:05 am - 11:43 pm
ONT
-
BIS
10h 38m
2 stops
$426United Airlines
Wed, Jul 15 - Tue, Jul 21
United Airlines Logo
6:00 am - 12:20 pm
BIS
-
ONT
8h 20m
2 stops
United Airlines Logo
1:00 pm - 8:27 pm
ONT
-
BIS
5h 27m
1 stop
$449United Airlines
Wed, Apr 1 - Sat, Apr 4
United Airlines Logo
1:45 pm - 12:38 pm
BIS
-
ONT
24h 53m
1 stop
United Airlines Logo
5:10 am - 8:28 pm
ONT
-
BIS
13h 18m
1 stop
$525United Airlines
Wed, Apr 1 - Sat, Apr 4
United Airlines Logo
1:45 pm - 9:56 am
BIS
-
ONT
22h 11m
2 stops
United Airlines Logo
5:10 am - 8:28 pm
ONT
-
BIS
13h 18m
1 stop
$530United Airlines
Fri, Mar 20 - Tue, Mar 24
United Airlines Logo
8:00 am - 12:48 pm
BIS
-
ONT
6h 48m
1 stop
United Airlines Logo
5:15 am - 1:03 pm
ONT
-
BIS
5h 48m
1 stop
$549United Airlines
Booking Insights

KAYAK's insights & trends for Bismarck to Ontario flights

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

Which airlines provide the cheapest flights from Bismarck to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Bismarck to Ontario were found on Delta ($281) and United Airlines ($351).

Find deals

Good to know

Cheapest flight$123
Flight from Bismarck to Ontario

When to book flights from Bismarck to Ontario

Are your dates flexible? Find out the best times to travel from Bismarck to Ontario 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 Bismarck to Ontario

  • What is the cheapest flight from Bismarck to Ontario?

    In the last 3 days, the lowest price for a flight from Bismarck to Ontario was $123 for a one-way ticket and $281 for a round-trip.

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

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

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

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

  • Which airline alliances offer flights from Bismarck to Ontario?

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

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

    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 Bismarck to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Bismarck 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 Bismarck to Ontario?

    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 Ontario with an airline and back to Bismarck with another airline. Booking your flights between Bismarck and ONT 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 Bismarck to Ontario?

    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 Ontario from Bismarck 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 Bismarck to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Bismarck to Ontario. 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 Bismarck to Ontario? 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 9296 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
Airline reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

2.0 MediocreAnnie Caroline, Feb 2026
SFO - LAX
Read more United Airlines reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

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

Information on your arrival and departure airports

Bismarck (BIS)
Ontario (ONT)