ONT - BIS

$321 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 8/5. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$321
Delta
Wed 8/5Sat 8/8
ONT - BIS • 2 stops
Top airlines
Delta
Cheapest • from $365 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Bismarck. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Dallas (DFW)
Cheapest • Avg $353 (round-trip)
Denver (DEN)
Shortest trip • 5h 48m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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, Aug 5 - Sat, Aug 8
Delta Logo
6:00 am - 7:46 pm
ONT
-
BIS
11h 46m
2 stops
Delta Logo
5:00 am - 12:05 pm
BIS
-
ONT
9h 05m
2 stops
$321Delta
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
3:34 pm - 1:50 pm
ONT
-
BIS
20h 16m
1 stop
Multiple Airlines Logo
2:40 pm - 7:48 pm
BIS
-
ONT
7h 08m
1 stop
$332Multiple Airlines
Thu, Aug 13 - Sat, Aug 15
Delta Logo
12:55 pm - 11:12 pm
ONT
-
BIS
8h 17m
2 stops
Delta Logo
10:00 am - 4:24 pm
BIS
-
ONT
8h 24m
2 stops
$336Delta
Fri, Aug 14 - Mon, Aug 17
Delta Logo
9:43 am - 7:46 pm
ONT
-
BIS
8h 03m
2 stops
Delta Logo
5:36 pm - 11:34 pm
BIS
-
ONT
7h 58m
2 stops
$349Delta
Sat, Aug 22 - Tue, Aug 25
Delta Logo
6:00 am - 7:46 pm
ONT
-
BIS
11h 46m
2 stops
Delta Logo
5:36 pm - 11:34 pm
BIS
-
ONT
7h 58m
2 stops
$355Delta
Thu, Jul 30 - Sat, Aug 15
Delta Logo
9:40 am - 7:46 pm
ONT
-
BIS
8h 06m
2 stops
Delta Logo
10:00 am - 4:24 pm
BIS
-
ONT
8h 24m
2 stops
$365Delta
Sat, Aug 22 - Mon, Aug 24
Delta Logo
6:00 am - 7:46 pm
ONT
-
BIS
11h 46m
2 stops
Delta Logo
5:36 pm - 11:34 pm
BIS
-
ONT
7h 58m
2 stops
$369Delta
Wed, Sep 2 - Sun, Sep 6
Multiple Airlines Logo
6:00 am - 1:50 pm
ONT
-
BIS
29h 50m
2 stops
Multiple Airlines Logo
2:40 pm - 7:48 pm
BIS
-
ONT
7h 08m
1 stop
$387Multiple Airlines
Wed, Aug 19 - Sat, Aug 22
Delta Logo
12:55 pm - 11:12 pm
ONT
-
BIS
8h 17m
2 stops
Delta Logo
10:00 am - 4:24 pm
BIS
-
ONT
8h 24m
2 stops
$395Delta
Thu, Jul 30 - Fri, Aug 14
Delta Logo
9:40 am - 7:46 pm
ONT
-
BIS
8h 06m
2 stops
Delta Logo
5:00 am - 12:05 pm
BIS
-
ONT
9h 05m
2 stops
$409Delta
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.

Which airlines provide the cheapest flights from Ontario to Bismarck?

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 Ontario to Bismarck were found on Delta ($365) and United Airlines ($471).

Find deals

Good to know

Cheapest flight$321
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 $360 for a one-way ticket and $357 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 9711 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
Airline reviews

No screens or meal options. Freezing cold. Dirty seats. Left late.

4.0 OkayMaya, May 2026
SFO - IAH
Read more United Airlines reviews

No screens or meal options. Freezing cold. Dirty seats. Left late.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

OK, we were delayed and had to de plane and reboard.

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

Information on your arrival and departure airports

Ontario (ONT)
Bismarck (BIS)