PDX - BIS

$275 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 1/31. 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
$275
Overall average: $388
Delta
Sat 1/31Mon 2/2
PDX - BIS • 1 stop
Cheapest one-way
$417
United Airlines
Tue 12/23
PDX - BIS • 1 stop
When to travel
September
Cheapest • 35% 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

Sat, Jan 31 - Mon, Feb 2
Delta Logo
6:00 am - 4:34 pm
PDX
-
BIS
8h 34m1 stop
Delta Logo
11:21 am - 5:35 pm
BIS
-
PDX
8h 14m1 stop
$275Delta
Fri, Jan 30 - Sun, Feb 1
Delta Logo
6:00 am - 4:34 pm
PDX
-
BIS
8h 34m1 stop
Delta Logo
1:31 pm - 8:32 pm
BIS
-
PDX
9h 01m1 stop
$279Delta
Sat, Jan 31 - Mon, Feb 2
Delta Logo
1:30 pm - 11:30 pm
PDX
-
BIS
8h 00m2 stops
Delta Logo
1:31 pm - 8:32 pm
BIS
-
PDX
9h 01m1 stop
$280Delta
Fri, Jan 30 - Sun, Feb 1
Delta Logo
11:10 am - 11:26 pm
PDX
-
BIS
10h 16m2 stops
Delta Logo
1:31 pm - 8:32 pm
BIS
-
PDX
9h 01m1 stop
$284Delta
Sat, Jan 31 - Mon, Feb 2
Delta Logo
1:30 pm - 11:30 pm
PDX
-
BIS
8h 00m2 stops
Delta Logo
1:31 pm - 11:55 pm
BIS
-
PDX
12h 24m2 stops
$285Delta
Wed, Apr 1 - Sat, Apr 11
Delta Logo
7:05 am - 8:19 pm
PDX
-
BIS
11h 14m2 stops
Delta Logo
5:00 pm - 9:11 pm
BIS
-
PDX
6h 11m1 stop
$304Delta
Wed, Mar 11 - Mon, Mar 16
Delta Logo
7:05 am - 8:19 pm
PDX
-
BIS
11h 14m2 stops
Delta Logo
1:22 pm - 5:39 pm
BIS
-
PDX
6h 17m1 stop
$324Delta
Wed, Mar 11 - Mon, Mar 16
Delta Logo
7:05 am - 8:19 pm
PDX
-
BIS
11h 14m2 stops
Delta Logo
1:22 pm - 11:54 pm
BIS
-
PDX
12h 32m2 stops
$329Delta
Wed, Mar 11 - Mon, Mar 16
United Airlines Logo
5:05 am - 1:01 pm
PDX
-
BIS
5h 56m1 stop
United Airlines Logo
5:30 am - 9:54 am
BIS
-
PDX
6h 24m1 stop
$339United Airlines
Fri, Jan 30 - Sat, Jan 31
United Airlines Logo
1:24 pm - 8:38 pm
PDX
-
BIS
5h 14m1 stop
United Airlines Logo
5:30 am - 9:45 am
BIS
-
PDX
6h 15m1 stop
$355United 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.

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

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

If your flying dates are flexible, you should consider flying to Bismarck on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Portland to Bismarck. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

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 December and November, where the average cost of round-trip tickets is $672 and $566 respectively.

Good to know

Low seasonSeptember
Cheapest flight$275
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 12% 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 $417 for a one-way ticket and $275 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 $319 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 $448 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 8009 reviews
7.9Comfort
8.5Crew
7.3Food
8.1Boarding
7.9Entertainment
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

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

Information on your arrival and departure airports