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Cheap flights from Bismarck to Seattle from $205

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 3/22. 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.
Delta Logo
5:00 am - 10:55 am
BIS
-
SEA
7h 55m1 stop
Delta Logo
3:30 pm - 11:22 pm
SEA
-
BIS
5h 52m1 stop
$271Delta
Tue, Feb 10 - Sat, Feb 14
Delta Logo
1:30 pm - 8:46 pm
BIS
-
SEA
9h 16m1 stop
Delta Logo
11:59 pm - 10:29 am
SEA
-
BIS
8h 30m1 stop
$275Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
5:00 am - 10:55 am
BIS
-
SEA
7h 55m1 stop
Delta Logo
3:35 pm - 11:26 pm
SEA
-
BIS
5h 51m1 stop
$279Delta
Fri, Jan 30 - Thu, Feb 5
United Airlines Logo
1:35 pm - 9:12 pm
BIS
-
SEA
9h 37m2 stops
United Airlines Logo
3:30 pm - 11:30 pm
SEA
-
BIS
6h 00m1 stop
$284United Airlines
Fri, Jan 30 - Mon, Feb 2
Delta Logo
5:00 am - 12:23 pm
BIS
-
SEA
9h 23m1 stop
Delta Logo
3:35 pm - 11:30 pm
SEA
-
BIS
5h 55m1 stop
$290Delta
Tue, Jan 20 - Sat, Jan 24
Delta Logo
1:28 pm - 8:46 pm
BIS
-
SEA
9h 18m1 stop
Delta Logo
6:05 am - 4:34 pm
SEA
-
BIS
8h 29m1 stop
$294Delta
Tue, Jan 27 - Wed, Feb 4
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m1 stop
United Airlines Logo
5:00 am - 1:03 pm
SEA
-
BIS
6h 03m1 stop
$304United Airlines
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m1 stop
United Airlines Logo
5:00 am - 1:03 pm
SEA
-
BIS
6h 03m1 stop
$305United Airlines
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
1:44 pm - 6:04 pm
BIS
-
SEA
6h 20m1 stop
United Airlines Logo
5:00 am - 1:03 pm
SEA
-
BIS
6h 03m1 stop
$307United Airlines
Wed, Mar 18 - Sat, Mar 21
Delta Logo
1:28 pm - 8:46 pm
BIS
-
SEA
9h 18m1 stop
Delta Logo
3:35 pm - 11:26 pm
SEA
-
BIS
5h 51m1 stop
$309Delta
Wed, Jan 21 - Tue, Jan 27

Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
Feb 10
BIS5:00 amBismarck
7h 55m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Feb 14
SEA3:30 pmSeattle/Tacoma Intl
5h 52m
1 stop
BIS11:22 pmBismarck
$271
Find similar
Delta
Mar 4
BIS1:30 pmBismarck
9h 16m
1 stop
SEA8:46 pmSeattle/Tacoma Intl
Mar 9
SEA11:59 pmSeattle/Tacoma Intl
8h 30m
1 stop
BIS10:29 amBismarck
$275
Find similar
Delta
Jan 20
BIS5:00 amBismarck
9h 23m
1 stop
SEA12:23 pmSeattle/Tacoma Intl
Jan 24
SEA3:35 pmSeattle/Tacoma Intl
5h 55m
1 stop
BIS11:30 pmBismarck
$290
Find similar

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
Jan 21
BIS6:16 amBismarck
8h 48m
1 stop
SEA1:04 pmSeattle/Tacoma Intl
Jan 24
SEA10:00 amSeattle/Tacoma Intl
10h 27m
2 stops
BIS10:27 pmBismarck
$314
Find similar
American Airlines
Jan 21
BIS6:16 amBismarck
13h 49m
2 stops
SEA6:05 pmSeattle/Tacoma Intl
Jan 24
SEA10:00 amSeattle/Tacoma Intl
10h 27m
2 stops
BIS10:27 pmBismarck
$383
Find similar
American Airlines
Jan 21
BIS6:16 amBismarck
16h 19m
2 stops
SEA8:35 pmSeattle/Tacoma Intl
Jan 28
SEA8:04 amSeattle/Tacoma Intl
12h 23m
2 stops
BIS10:27 pmBismarck
$385
Find similar

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 7, 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

Tue 2/10

5:00 am-10:55 am

1 stop7h 55m

Seattle/Tacoma Intl

Sat 2/14

3:30 pm-11:22 pm

1 stop5h 52m

$271

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/4

1:30 pm-8:46 pm

1 stop9h 16m

Seattle/Tacoma Intl

Mon 3/9

11:59 pm-10:29 am

1 stop8h 30m

$275

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 1/30

5:00 am-10:55 am

1 stop7h 55m

Seattle/Tacoma Intl

Thu 2/5

3:35 pm-11:26 pm

1 stop5h 51m

$279

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 1/30

1:35 pm-9:12 pm

2 stops9h 37m

Seattle/Tacoma Intl

Mon 2/2

3:30 pm-11:30 pm

1 stop6h 00m

$284

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 1/20

5:00 am-12:23 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sat 1/24

3:35 pm-11:30 pm

1 stop5h 55m

$290

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 1/27

1:28 pm-8:46 pm

1 stop9h 18m

Seattle/Tacoma Intl

Wed 2/4

6:05 am-4:34 pm

1 stop8h 29m

$294

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/18

5:30 am-9:49 am

1 stop6h 19m

Seattle/Tacoma Intl

Sat 3/21

5:00 am-1:03 pm

1 stop6h 03m

$304

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/18

5:30 am-9:49 am

1 stop6h 19m

Seattle/Tacoma Intl

Sat 3/21

5:00 am-1:03 pm

1 stop6h 03m

$305

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 3/18

1:44 pm-6:04 pm

1 stop6h 20m

Seattle/Tacoma Intl

Sat 3/21

5:00 am-1:03 pm

1 stop6h 03m

$307

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 1/21

1:28 pm-8:46 pm

1 stop9h 18m

Seattle/Tacoma Intl

Tue 1/27

3:35 pm-11:26 pm

1 stop5h 51m

$309

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 16% 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 51m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 6h 51m
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 51m, 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 $258Free CancellationRating
7.9
8,022 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,138 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
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Westport
Kirkland
Centralia
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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