Cheap Flights from Seattle (SEA) to Bismarck (BIS)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Seattle / Tacoma International to Bismarck flight deals

      Find the cheapest month or even day of the year to fly to Bismarck

      Book the best Bismarck fare with no extra fees

      Flight deals from Seattle / Tacoma International to Bismarck

      Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Bismarck Airport? If you want to travel next month, return fares start from $477. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest month to fly from Seattle / Tacoma International to Bismarck

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Bismarck flights are currently cheapest in September.

      Seattle / Tacoma International to Bismarck: Alternative routes

      Compare routes from Seattle / Tacoma International to Bismarck below. You may find an airport to fly into that's cheaper, faster, or easier than Bismarck.

      Seattle to Bismarck: Flight information

      The things to know before you go.
      Cheapest flight found$455
      Cheapest month to flySeptember

      Finding cheap flights from Seattle / Tacoma International to Bismarck: Frequently asked questions

      The best price we found for a return flight from Seattle / Tacoma International to Bismarck is $455. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Seattle / Tacoma International to Bismarck. But we found flights with one or more stops from $455.
      As of September 2026, there are no flights flying from Seattle / Tacoma International to Bismarck.
      The cheapest month to fly from Seattle / Tacoma International to Bismarck is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Bismarck Airport on Tuesday, 22 September 2026.
      No airlines currently offer direct flights between Seattle / Tacoma International Airport and Bismarck Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bismarck but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bismarck is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Delta offers the cheapest flight tickets to Bismarck.

      Flying from Seattle / Tacoma International Airport (SEA) to Bismarck Airport (BIS): what you need to know

      • Get to the airport on time so you don't miss your SEA to BIS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

      • During popular months like July, you'll want to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a high season in general.

      • If you'd like to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from Seattle / Tacoma International Airport to Bismarck Airport. Here are the most popular stopovers between SEA and BIS:

        • Dallas Fort Worth International Airport

        • Denver International Airport

        • Minneapolis St Paul Airport

      How to find the cheapest flights from Seattle / Tacoma International Airport (SEA) to Bismarck Airport (BIS)

      • $427 is the best price for a one-way Seattle / Tacoma International Airport to Bismarck Airport flight. Return flights start at $455. These fares can change based on availability and demand.

      • To get your hands on cheap tickets from SEA to BIS, book as early as you can. Airlines usually offer lower prices when flights are first made available.

      • If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll find the cheapest price across the month when searching for your flight from Seattle / Tacoma International Airport to Bismarck Airport.

      • Cut down on the time spent looking for cheap flights from SEA to BIS by creating a Price Alert. You'll get an email or notification through the app when a lower fare pops up.

      • Select your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Seattle / Tacoma International Airport to Bismarck Airport.

      Handy information about Seattle / Tacoma International Airport (SEA)

      • Seattle / Tacoma International Airport maintains a solid on-time record, reducing the likelihood of delays. Departures from SEA touch down on schedule 80% of the time.

      • Central Seattle to Seattle / Tacoma International Airport is around 23 kilometres. Depending on traffic, it'll take you about 25 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • Catching public transport? Expect a journey time of around 35 minutes.

      • Get your holiday off to a hassle-free start by staying near SEA. Whether you've booked an early flight from Seattle / Tacoma International Airport to Bismarck Airport or want to avoid feeling rushed, these stays have you covered:

      Arriving at Bismarck Airport (BIS)

      • If you're landing on a late Seattle / Tacoma International Airport to Bismarck Airport flight, few things top the convenience of being close to the terminal. Grab your luggage from the carousel and then be resting not long after at one of these accommodation options near BIS:

      • Get your adventure underway by picking up a Bismarck Airport rental car. Grab your wheels from Enterprise, Avis or Hertz and explore beyond Bismarck's main sights.

      • Reserve your vehicle from Bismarck Airport a few weeks in advance to secure the best deal. If you're travelling during a busy period, you may want to book even earlier.

      Getting from Bismarck Airport (BIS) to central Bismarck

      • You'll find BIS at 2301 University Drive Bldg 17.

      • Bismarck Airport to the centre of Bismarck has a drive time of around 15 minutes. It's approximately 11 kilometres away.

      • If you're taking public transport, expect a journey time of roughly 30 minutes.

      When to fly to Bismarck Airport (BIS)

      • October is the most popular month for flights from Seattle / Tacoma International Airport to Bismarck Airport. For a quieter experience, head to Bismarck in March.

      • When reserving your flight from Seattle / Tacoma International Airport to Bismarck Airport, consider the kind of weather you like. July is the warmest month in Bismarck, with the temperature ranging from 14ºC (57ºF) to 32ºC (90ºF).

      • If you want to travel in cooler conditions, look for a cheap ticket from SEA to BIS in January. Temperatures average between -18ºC (0ºF) and 0ºC (32ºF) then.

      Explore more of the United States

      • Bismarck has loads to offer, but there are so many other corners of the United States waiting to be explored. Around 483 kilometres south-east of Bismarck, a visit to Sioux Falls will keep you on the move. Check out popular attractions like Great Plains Zoo and Delbridge Museum of Natural History, Waterfalls and Japanese Gardens.

      • If you're looking to explore another major destination in the United States, consider Fargo, about 306 kilometres east of Bismarck. Red River Zoo, Plains Art Museum and Fargo Art Alley are key reasons to visit.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.