PDX - BIS

$279 Find Cheap Flights from Portland 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 Portland to Bismarck departing on 4/2. 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 Portland 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 Portland to Bismarck, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$279
Typical prices: $359-$452
United Airlines
Thu 4/2Fri 4/10
PDX - BIS • 1 stop
Cheapest one-way
$310
Delta
Wed 6/17
PDX - BIS • 1 stop
When to travel
September
Cheapest • 32% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Portland to Bismarck (PDX-BIS)

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

Thu, Apr 2 - Fri, Apr 10
United Airlines Logo
4:15 pm - 11:43 pm
PDX
-
BIS
5h 28m1 stop
United Airlines Logo
5:05 pm - 10:54 pm
BIS
-
PDX
7h 49m1 stop
$279United Airlines
Thu, Apr 2 - Fri, Apr 10
United Airlines Logo
4:15 pm - 11:43 pm
PDX
-
BIS
5h 28m1 stop
United Airlines Logo
5:05 pm - 9:14 pm
BIS
-
PDX
6h 09m1 stop
$305United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
5:00 am - 12:51 pm
PDX
-
BIS
5h 51m1 stop
United Airlines Logo
5:30 am - 9:45 am
BIS
-
PDX
6h 15m1 stop
$309United Airlines
Thu, Jan 22 - Mon, Jan 26
Delta Logo
6:00 am - 4:34 pm
PDX
-
BIS
8h 34m1 stop
Delta Logo
1:28 pm - 11:55 pm
BIS
-
PDX
12h 27m2 stops
$314Delta
Thu, Jan 22 - Mon, Jan 26
Delta Logo
1:30 pm - 11:26 pm
PDX
-
BIS
7h 56m2 stops
Delta Logo
1:28 pm - 11:55 pm
BIS
-
PDX
12h 27m2 stops
$320Delta
Fri, Apr 3 - Mon, Apr 13
United Airlines Logo
4:15 pm - 11:43 pm
PDX
-
BIS
5h 28m1 stop
United Airlines Logo
5:05 pm - 9:14 pm
BIS
-
PDX
6h 09m1 stop
$367United Airlines
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
3:50 pm - 11:43 pm
PDX
-
BIS
5h 53m1 stop
United Airlines Logo
5:30 am - 9:42 am
BIS
-
PDX
6h 12m1 stop
$401United Airlines
Thu, Apr 2 - Mon, Apr 13
Delta Logo
12:30 am - 10:29 am
PDX
-
BIS
7h 59m1 stop
Delta Logo
5:00 pm - 11:53 pm
BIS
-
PDX
8h 53m2 stops
$404Delta
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
3:50 pm - 11:43 pm
PDX
-
BIS
5h 53m1 stop
United Airlines Logo
5:30 am - 9:42 am
BIS
-
PDX
6h 12m1 stop
$417United Airlines
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
1:40 pm - 11:43 pm
PDX
-
BIS
8h 03m2 stops
United Airlines Logo
5:30 am - 9:42 am
BIS
-
PDX
6h 12m1 stop
$455United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Bismarck flights

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

How much is a round-trip flight from Portland to Bismarck?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Bismarck departing in April.

What is the cheapest month to fly from Portland to Bismarck?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Bismarck, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Bismarck is September, where tickets cost $287 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $566 and $504 respectively.

Good to know

Low seasonSeptember
Cheapest flight$279
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Portland to Bismarck

When to book flights from Portland to Bismarck

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

  • What is the cheapest flight from Portland to Bismarck?

    In the last 3 days, the lowest price for a flight from Portland to Bismarck was $281 for a one-way ticket and $279 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

  • Which airline alliances offer flights from Portland to Bismarck?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Portland and Bismarck, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Portland to Bismarck, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to Bismarck are Delta and United Airlines. With an average price for the route of $318 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $450 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Portland 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 Portland to Bismarck.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bismarck from Portland 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 Portland 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 Portland with another airline. Booking your flights between Portland 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 Portland 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 Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Portland to Bismarck

 
See real verified KAYAK customer reviews for airlines flying from Portland 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 Portland 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.
7.9
DeltaOverall score based on 8025 reviews
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
7.9Comfort
Airline reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

2.0 MediocreWilliam, Jan 2026
LGA - BOS
Read more Delta reviews

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

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

Information on your arrival and departure airports