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

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Flight deals from Seattle to Bismarck Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Bismarck Airport? If you want to travel next month, return fares start from £217. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Bismarck

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

Seattle to Bismarck: Alternative routes

Compare routes from Seattle 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£217
Cheapest month to flyApril

Finding cheap flights from Seattle to Bismarck: Frequently asked questions

The best price we found for a return flight from Seattle to Bismarck is £217. 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 to Bismarck. But we found flights with one stop from £217.
As of March 2026, there are no flights flying from Seattle to Bismarck.
The cheapest month to fly from Seattle to Bismarck is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Bismarck Airport on Tuesday, 14 April 2026.
No airlines currently offer direct flights between Seattle 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.
The cheapest airline that flies to Bismarck is United .

Travelling from Seattle to Bismarck Airport (BIS): What you need to know

  • Seattle's main airport is Seattle-Tacoma International Airport (SEA). Explore your departure options from this base when searching for flights from Seattle to Bismarck Airport (BIS).

  • Bismarck is two hours ahead of Seattle. Bismarck Airport is located in Bismarck, which is in the UTC-5 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Make sure you're at the airport on time to board your flight from Seattle to BIS.

  • If you're taking off during a major holiday or other peak period, give yourself more time. Arrive two hours before domestic flights and up to four hours before international departures. Security and check-in lines will be longer.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Located around 23 kms (14 miles) from central Seattle, SEA can be reached in about 20 minutes by car, depending on traffic. The journey by public transport takes roughly 55 minutes.

  • Looking for a convenient hotel close to Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Bismarck Airport, these stays will put you moments from your check-in counter:

  • Seattle-Tacoma International Airport gets high marks for on-time performance. 81.27% of flights that depart SEA reach their destination without delay.

Lake Union Sea Plane Base Airport (LKE)

  • LKE is about 3 kms (2 miles) from central Seattle. It'll take you 10 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 25 minutes.

  • Catching the earliest flight? Think about checking in to one of these accommodation options near Lake Union Sea Plane Base Airport the day before your Seattle to BIS flight:

About Bismarck Airport (BIS)

  • Consider staying in a hotel close to BIS if you have a late flight from Seattle to Bismarck Airport. Settle into one of these accommodation options and end the night sooner:

  • BIS is located at 2301 University Drive Bldg 17.

How to find the cheapest flights from Seattle to Bismarck Airport (BIS)

  • Currently, £126 is the best price we've found for a one-way ticket from Seattle to Bismarck Airport. The cheapest price for a return flight is £217. Remember fares may change due to availability at the time of booking.

  • Booking early is often the key to scoring a cheap flight from Seattle to BIS. Prices tend to rise as demand increases, so the closer you get to departure, the more expensive your ticket may be.

  • The 'Whole month' tool shows you the cheapest Seattle to Bismarck Airport tickets across each month. It's a good way to snap up a bargain if your travel dates aren't set in stone.

  • You don't need to search every day to find out if fares have dropped when you set up a Price Alert. We'll let you know the moment a better deal is available on plane tickets from Seattle to BIS.

  • Chase down a great fare on a flight from Seattle to Bismarck Airport with the help of the filters. Choose your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest.'

The best time to fly from Seattle to Bismarck Airport (BIS)

  • February is the quietest month for flights from Seattle to Bismarck Airport (BIS), while October is the busiest. Find the best time to visit Bismarck based on whether you prefer a laid-back vibe or a lively atmosphere.

  • Before locking in your Seattle to BIS plane ticket, consider the weather you're most comfortable in. July is the warmest month in Bismarck, with temperatures ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from Seattle to Bismarck Airport in January when temperatures are between -18ºC (0ºF) and 0ºC (32ºF).

More about Bismarck

  • Start your Bismarck trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Seattle to Bismarck Airport, check out our range of accommodation options including:

  • All great journeys should include some sightseeing. State Capitol Building, Cathedral of the Holy Spirit and North Dakota Heritage Centre are attractions you won't want to skip in Bismarck.

Explore more of the United States

  • Bismarck will leave a lasting impression, but there are so many other corners of the United States you'll want to see. About 161 kms (100 miles) north of Bismarck, a trip to Minot will keep your itinerary busy. Start with leading attractions like Scandinavian Heritage Park, Railroad Museum & Magic City Express and Rainbow Gardens.

  • West Fargo is another favourite destination in the United States and is around 290 kms (180 miles) east of Bismarck. No trip is complete without a visit to Wilds Park, Maple Ridge Park and Flatland Brewery.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.