SEA - BIS

$276 Find Cheap Flights from Seattle to Bismarck

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Bismarck departing on 7/8. 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 Seattle 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 Seattle to Bismarck, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% 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
$315
Typical prices: $429-$589
United Airlines
Fri 8/21Wed 8/26
SEA - BIS • 1 stop
Cheapest one-way
$276
Multiple Airlines
Wed 7/8
SEA - BIS • 1 stop
Top airlines
Cheapest • from $315 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Bismarck. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $421 (round-trip)
Shortest trip • 5h 57m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
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 Seattle to Bismarck (SEA-BIS)

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

Fri, Aug 21 - Wed, Aug 26
United Airlines Logo
3:54 pm - 11:38 pm
SEA
-
BIS
5h 44m
1 stop
United Airlines Logo
6:35 pm - 11:04 pm
BIS
-
SEA
6h 29m
1 stop
$315United Airlines
Fri, Sep 4 - Sun, Sep 6
Delta Logo
6:05 am - 4:56 pm
SEA
-
BIS
8h 51m
1 stop
Delta Logo
5:00 am - 8:48 am
BIS
-
SEA
5h 48m
1 stop
$319Delta
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
3:55 pm - 11:43 pm
SEA
-
BIS
5h 48m
1 stop
United Airlines Logo
6:00 am - 10:01 am
BIS
-
SEA
6h 01m
1 stop
$401United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
3:55 pm - 11:43 pm
SEA
-
BIS
5h 48m
1 stop
United Airlines Logo
9:05 am - 9:01 pm
BIS
-
SEA
13h 56m
2 stops
$406United Airlines
Thu, Sep 24 - Sun, Sep 27
American Airlines Logo
12:05 pm - 10:52 pm
SEA
-
BIS
8h 47m
1 stop
American Airlines Logo
1:57 pm - 9:52 pm
BIS
-
SEA
9h 55m
1 stop
$409American Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
10:55 am - 11:43 pm
SEA
-
BIS
10h 48m
2 stops
United Airlines Logo
9:05 am - 6:44 pm
BIS
-
SEA
11h 39m
2 stops
$411United Airlines
Fri, Aug 21 - Wed, Aug 26
United Airlines Logo
3:54 pm - 11:38 pm
SEA
-
BIS
5h 44m
1 stop
United Airlines Logo
1:40 pm - 11:26 pm
BIS
-
SEA
11h 46m
2 stops
$413United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
10:55 am - 11:43 pm
SEA
-
BIS
10h 48m
2 stops
United Airlines Logo
9:05 am - 6:44 pm
BIS
-
SEA
11h 39m
2 stops
$440United Airlines
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
2:33 pm - 11:11 pm
SEA
-
BIS
6h 38m
1 stop
United Airlines Logo
6:25 pm - 11:10 pm
BIS
-
SEA
6h 45m
1 stop
$501United Airlines
Fri, Sep 4 - Sun, Sep 6
American Airlines Logo
10:15 am - 10:44 pm
SEA
-
BIS
10h 29m
1 stop
American Airlines Logo
1:55 pm - 10:17 pm
BIS
-
SEA
10h 22m
1 stop
$522American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Bismarck flights

Get data-powered insights and trends into flights from Seattle 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 Seattle 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 Seattle to Bismarck departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Bismarck is November, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $705 and $629 respectively.

Good to know

Low seasonFebruary
Cheapest flight$276
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Seattle to Bismarck

When to book flights from Seattle to Bismarck

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

  • What is the cheapest flight from Seattle to Bismarck?

    In the last 5 days, the lowest price for a flight from Seattle to Bismarck was $276 for a one-way ticket and $315 for a round-trip.

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

    No

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

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

  • Which airline alliances offer flights from Seattle to Bismarck?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Bismarck are Delta and United Airlines. With an average price for the route of $480 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $451 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bismarck from Seattle 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 Seattle 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 Seattle with another airline. Booking your flights between Seattle 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 Seattle 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 Seattle 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 Seattle to Bismarck

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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.
7.8
DeltaOverall score based on 8455 reviews
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

2.0 MediocreBlake, Jun 2026
SEA - BOS
Read more Delta reviews

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

The new Airbus A231neo has neat tech but the economy seats are so tight together that I always had my shoulders against one passenger or the other. I was very miffed that Basic Economy REQUIRES check-in of bags other than your personal carry-on; if you want to offer low-cost airline prices and then add services for a fee, just let me carry on my duffel. Hell, I could have put my carry on IN the duffel and called it a day but the gate agent would not let me; I ended up paying $40 for the risk of losing my bag. Not the worst flight, but far from the best.

Terrible Initial delay for almost an hour before boarding and departing in Seattle. Then a “customary” wait on the tarmac in Newark after landing for half an hour. I call it customary because it happens almost every time I land in Newark. I do t know if it’s Newark or United airline but it’s a travesty . I use Newark because it’s closer than jfk to where I live but am strongly considering switching because of extremely poor in time performance and Condé and delay after landing

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

Information on your arrival and departure airports