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Cheap flights from Bismarck to Seattle from $267

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bismarck to Seattle departing on 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Bismarck to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 pm - 9:15 pm
BIS
-
SEA
6h 05m
1 stop
United Airlines Logo
5:00 am - 12:51 pm
SEA
-
BIS
5h 51m
1 stop
$309United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m
1 stop
United Airlines Logo
5:00 am - 12:56 pm
SEA
-
BIS
5h 56m
1 stop
$383United Airlines
Wed, Feb 25 - Wed, Mar 4
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m
1 stop
United Airlines Logo
3:16 pm - 11:43 pm
SEA
-
BIS
6h 27m
1 stop
$391United Airlines
Mon, Feb 16 - Mon, Feb 23
United Airlines Logo
1:35 pm - 9:12 pm
BIS
-
SEA
9h 37m
2 stops
United Airlines Logo
5:00 am - 12:51 pm
SEA
-
BIS
5h 51m
1 stop
$397United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:31 pm - 10:59 pm
BIS
-
SEA
6h 28m
1 stop
United Airlines Logo
3:48 pm - 11:43 pm
SEA
-
BIS
5h 55m
1 stop
$399United Airlines
Wed, Mar 25 - Mon, Mar 30
United Airlines Logo
1:43 pm - 11:30 pm
BIS
-
SEA
11h 47m
2 stops
United Airlines Logo
5:00 am - 12:56 pm
SEA
-
BIS
5h 56m
1 stop
$430United Airlines
Wed, Feb 25 - Wed, Mar 4
United Airlines Logo
1:44 pm - 11:28 pm
BIS
-
SEA
11h 44m
2 stops
United Airlines Logo
3:48 pm - 11:43 pm
SEA
-
BIS
5h 55m
1 stop
$440United Airlines
Wed, Mar 25 - Mon, Mar 30
Delta Logo
7:31 am - 12:18 pm
BIS
-
SEA
6h 47m
1 stop
Delta Logo
12:00 pm - 10:48 am
SEA
-
BIS
20h 48m
2 stops
$442Delta
Tue, Jun 2 - Sat, Jun 6
United Airlines Logo
5:07 pm - 10:59 pm
BIS
-
SEA
7h 52m
1 stop
United Airlines Logo
5:07 am - 12:48 pm
SEA
-
BIS
5h 41m
1 stop
$460United Airlines
Mon, Jun 1 - Sat, Jun 6
Delta Logo
6:10 am - 12:22 am
BIS
-
SEA
20h 12m
2 stops
Delta Logo
3:35 pm - 11:14 pm
SEA
-
BIS
5h 39m
1 stop
$468Delta
Sat, May 30 - Fri, Jun 5

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Feb 4
BIS5:10 pmBismarck
6h 05m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
Feb 8
SEA5:00 amSeattle/Tacoma Intl
5h 51m
1 stop
BIS12:51 pmBismarck
$309
United Airlines
Feb 25
BIS5:30 amBismarck
6h 19m
1 stop
SEA9:49 amSeattle/Tacoma Intl
Mar 4
SEA5:00 amSeattle/Tacoma Intl
5h 56m
1 stop
BIS12:56 pmBismarck
$383
United Airlines
Feb 16
BIS5:30 amBismarck
6h 19m
1 stop
SEA9:49 amSeattle/Tacoma Intl
Feb 23
SEA3:16 pmSeattle/Tacoma Intl
6h 27m
1 stop
BIS11:43 pmBismarck
$391

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
May 30
BIS12:51 pmBismarck
9h 40m
1 stop
SEA8:31 pmSeattle/Tacoma Intl
Jun 4
SEA11:58 pmSeattle/Tacoma Intl
10h 23m
1 stop
BIS12:21 pmBismarck
$483
American Airlines
May 30
BIS12:51 pmBismarck
9h 40m
1 stop
SEA8:31 pmSeattle/Tacoma Intl
Jun 6
SEA11:58 pmSeattle/Tacoma Intl
10h 23m
1 stop
BIS12:21 pmBismarck
$564
American Airlines
Jul 18
BIS2:03 pmBismarck
11h 36m
2 stops
SEA11:39 pmSeattle/Tacoma Intl
Jul 27
SEA11:58 pmSeattle/Tacoma Intl
10h 23m
1 stop
BIS12:21 pmBismarck
$663

momondo Fare Finder

 
Customize your flight search to find flights from Bismarck to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Bismarck to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 2/4

5:10 pm-9:15 pm

1 stop6h 05m

Seattle/Tacoma Intl

Sun 2/8

5:00 am-12:51 pm

1 stop5h 51m

$309

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 2/25

5:30 am-9:49 am

1 stop6h 19m

Seattle/Tacoma Intl

Wed 3/4

5:00 am-12:56 pm

1 stop5h 56m

$383

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 2/16

5:30 am-9:49 am

1 stop6h 19m

Seattle/Tacoma Intl

Mon 2/23

3:16 pm-11:43 pm

1 stop6h 27m

$391

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 2/4

1:35 pm-9:12 pm

2 stops9h 37m

Seattle/Tacoma Intl

Sun 2/8

5:00 am-12:51 pm

1 stop5h 51m

$397

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/25

6:31 pm-10:59 pm

1 stop6h 28m

Seattle/Tacoma Intl

Mon 3/30

3:48 pm-11:43 pm

1 stop5h 55m

$399

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 2/25

1:43 pm-11:30 pm

2 stops11h 47m

Seattle/Tacoma Intl

Wed 3/4

5:00 am-12:56 pm

1 stop5h 56m

$430

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/25

1:44 pm-11:28 pm

2 stops11h 44m

Seattle/Tacoma Intl

Mon 3/30

3:48 pm-11:43 pm

1 stop5h 55m

$440

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 6/2

7:31 am-12:18 pm

1 stop6h 47m

Seattle/Tacoma Intl

Sat 6/6

12:00 pm-10:48 am

2 stops20h 48m

$442

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 6/1

5:07 pm-10:59 pm

1 stop7h 52m

Seattle/Tacoma Intl

Sat 6/6

5:07 am-12:48 pm

1 stop5h 41m

$460

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 5/30

6:10 am-12:22 am

2 stops20h 12m

Seattle/Tacoma Intl

Fri 6/5

3:35 pm-11:14 pm

1 stop5h 39m

$468

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Bismarck to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Bismarck and Seattle?

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Bismarck to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $286. If you don’t want to visit Seattle in February, then you should wait until March to fly from Bismarck, when ticket prices are also cheap, with an average price of $364.

Can stopping save me money on Bismarck to Seattle flights?

You could potentially save up to 5% on your flight if you consider stops on a Bismarck to Seattle flight.

When to book flights from Bismarck to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Bismarck to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Bismarck to Seattle (BIS to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bismarck to Seattle

Fastest flight time

6h 05m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 6h 05m
There are no direct flights from Bismarck to Seattle. There are no popular flight routes from Bismarck to Seattle.
Search flight deals

  • How far is Bismarck to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 1009.3 mi away from Bismarck. Flights usually cover this in 6h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Bismarck Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Bismarck Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Bismarck Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Bismarck Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bismarck Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Bismarck to Seattle?

Best airlines flying from Bismarck to Seattle

Compare and see reviews for airlines that fly from Bismarck to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $227Free CancellationRating
7.9
8,087 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,188 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Redmond
Puyallup
Cle Elum
Tukwila
Lakewood
Federal Way
Centralia
Westport
Kirkland
Fife
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Bismarck to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Bismarck to Seattle for you.

Can I find flights from Bismarck to Seattle with flexible booking policies on momondo?

All flight searches from Bismarck to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Bismarck to Seattle?

Once you have performed a search for Bismarck to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Bismarck to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Bismarck are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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