CA $367 Cheap Flights from Bismarck (BIS) to Seattle (SEA)

View CA $367 flight on Sun, Aug. 3, 2025Opens in a new window

Popular airlines from Bismarck, ND (BIS-Bismarck Municipal) to Seattle-Tacoma International Airport (SEA)

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

Prices were available within the past 7 days and start at CA $367 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Bismarck (BIS) to Seattle (SEA)

April is typically the cheapest month to fly

From CA $273 - CA $1,042 per traveller.

Graph displaying average flight prices per month

Flight from Bismarck to Seattle (BIS - SEA) route information
Origin airport
Bismarck Municipal
Destination airport
Seattle - Tacoma Intl.
Distance
1617 km

Bismarck to Seattle Flights

The easy way to book your flights from Bismarck to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Bismarck whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 3 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Bismarck to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Bismarck Municipal, BIS to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Bismarck to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Bismarck currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Bismarck 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Frequently asked questions

How much is a flight from Bismarck Municipal Airport to SEA?
Round-trip journeys between Bismarck Municipal Airport (BIS) and Sea-Tac Airport start from . This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book now so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BIS to Seattle - Tacoma Intl. Airport (SEA)?
This can differ from airline to airline, as each one has its own terms and conditions. Head to the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from BIS to Sea-Tac Airport that have flexible change policies?
Flights from Bismarck Municipal Airport (BIS) to SEA with flexible change policies are available from several airlines. Simply use our "No change fees" filter while searching. You'll only need to cover the fare difference, with no additional fees to worry about.
How many hours is the flight from Bismarck Municipal Airport to Sea-Tac Airport?
Consider bringing your own entertainment (like some downloaded TV shows), as it takes approximately 6 hours and 6 minutes to fly to Sea-Tac Airport from BIS. A set of noise-cancelling earphones will also be useful.
How far is the flight from Bismarck Municipal Airport (BIS) to Sea-Tac Airport?
The flight distance between BIS (BIS) and Sea-Tac Airport (SEA) is 1,650 kilometres. Squeeze in a nap or finish off your latest read and the trip will zip by.
Which airlines fly direct from Bismarck Municipal Airport to Seattle - Tacoma Intl. Airport (SEA)?
If you're eager to fly straight from BIS to Sea-Tac Airport, Delta (DL) is an excellent option. It operates 0 flights every month between Bismarck and SeaTac.
Are Bismarck Municipal Airport (BIS) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally score a bargain, with some super cheap airfares from BIS to SEA appearing a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates the best flight deals frequently — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines quote prices that far in advance.

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