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Cheap flights from Bismarck to Seattle from $314

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 9/15. 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
1 adult, Economy, 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
5:16 pm - 11:11 pm
BIS
-
SEA
7h 55m
1 stop
United Airlines Logo
2:26 pm - 11:38 pm
SEA
-
BIS
7h 12m
1 stop
$351United Airlines
Di, Aug 18 - Sa, Aug 22
Delta Logo
5:00 am - 10:55 am
BIS
-
SEA
7h 55m
1 stop
Delta Logo
11:59 pm - 10:29 am
SEA
-
BIS
8h 30m
1 stop
$354Delta
So, Mai 10 - Mo, Mai 18
United Airlines Logo
9:16 am - 6:29 pm
BIS
-
SEA
11h 13m
2 stops
United Airlines Logo
3:51 pm - 11:38 pm
SEA
-
BIS
5h 47m
1 stop
$356United Airlines
Di, Aug 18 - Sa, Aug 22
United Airlines Logo
6:00 am - 2:36 pm
BIS
-
SEA
10h 36m
2 stops
United Airlines Logo
5:00 am - 12:56 pm
SEA
-
BIS
5h 56m
1 stop
$373United Airlines
Sa, Mai 16 - So, Mai 24
United Airlines Logo
6:00 am - 9:40 am
BIS
-
SEA
5h 40m
1 stop
United Airlines Logo
3:40 pm - 11:41 pm
SEA
-
BIS
6h 01m
1 stop
$401United Airlines
Di, Mai 5 - Sa, Mai 9
American Airlines Logo
12:59 pm - 12:36 am
BIS
-
SEA
13h 37m
1 stop
American Airlines Logo
11:58 pm - 12:12 pm
SEA
-
BIS
10h 14m
1 stop
$403American Airlines
Sa, Mai 16 - Sa, Mai 23
Delta Logo
5:00 am - 10:55 am
BIS
-
SEA
7h 55m
1 stop
Delta Logo
11:59 pm - 10:34 am
SEA
-
BIS
8h 35m
1 stop
$404Delta
Mi, Apr 15 - So, Apr 19
United Airlines Logo
6:00 am - 9:40 am
BIS
-
SEA
5h 40m
1 stop
United Airlines Logo
5:00 am - 8:31 pm
SEA
-
BIS
13h 31m
2 stops
$406United Airlines
Di, Mai 5 - Sa, Mai 9
United Airlines Logo
6:00 am - 2:36 pm
BIS
-
SEA
10h 36m
2 stops
United Airlines Logo
5:00 am - 12:56 pm
SEA
-
BIS
5h 56m
1 stop
$410United Airlines
Sa, Mai 16 - Sa, Mai 23
United Airlines Logo
1:55 pm - 9:06 pm
BIS
-
SEA
9h 11m
2 stops
United Airlines Logo
7:08 am - 8:31 pm
SEA
-
BIS
11h 23m
2 stops
$411United Airlines
Di, Mai 5 - Sa, Mai 9

Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
May 10
BIS5:00 amBismarck
7h 55m
1 stop
SEA10:55 amSeattle/Tacoma Intl
May 18
SEA11:59 pmSeattle/Tacoma Intl
8h 30m
1 stop
BIS10:29 amBismarck
$354
Delta
Apr 15
BIS5:00 amBismarck
7h 55m
1 stop
SEA10:55 amSeattle/Tacoma Intl
Apr 19
SEA11:59 pmSeattle/Tacoma Intl
8h 35m
1 stop
BIS10:34 amBismarck
$404
Delta
Apr 16
BIS5:17 pmBismarck
8h 37m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
Apr 20
SEA11:59 pmSeattle/Tacoma Intl
8h 35m
1 stop
BIS10:34 amBismarck
$434

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Aug 18
BIS5:16 pmBismarck
7h 55m
1 stop
SEA11:11 pmSeattle/Tacoma Intl
Aug 22
SEA2:26 pmSeattle/Tacoma Intl
7h 12m
1 stop
BIS11:38 pmBismarck
$351
United Airlines
Aug 18
BIS9:16 amBismarck
11h 13m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
Aug 22
SEA3:51 pmSeattle/Tacoma Intl
5h 47m
1 stop
BIS11:38 pmBismarck
$356
United Airlines
May 16
BIS6:00 amBismarck
10h 36m
2 stops
SEA2:36 pmSeattle/Tacoma Intl
May 24
SEA5:00 amSeattle/Tacoma Intl
5h 56m
1 stop
BIS12:56 pmBismarck
$373

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 April 3, 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

Cheapest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Di 8/18

5:16 pm-11:11 pm

1 stop7h 55m

Seattle/Tacoma Intl

Sa 8/22

2:26 pm-11:38 pm

1 stop7h 12m

$351

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

So 5/10

5:00 am-10:55 am

1 stop7h 55m

Seattle/Tacoma Intl

Mo 5/18

11:59 pm-10:29 am

1 stop8h 30m

$354

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Di 8/18

9:16 am-6:29 pm

2 stops11h 13m

Seattle/Tacoma Intl

Sa 8/22

3:51 pm-11:38 pm

1 stop5h 47m

$356

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sa 5/16

6:00 am-2:36 pm

2 stops10h 36m

Seattle/Tacoma Intl

So 5/24

5:00 am-12:56 pm

1 stop5h 56m

$373
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Di 5/5

6:00 am-9:40 am

1 stop5h 40m

Seattle/Tacoma Intl

Sa 5/9

3:40 pm-11:41 pm

1 stop6h 01m

$401

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sa 5/16

12:59 pm-12:36 am

1 stop13h 37m

Seattle/Tacoma Intl

Sa 5/23

11:58 pm-12:12 pm

1 stop10h 14m

$403

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mi 4/15

5:00 am-10:55 am

1 stop7h 55m

Seattle/Tacoma Intl

So 4/19

11:59 pm-10:34 am

1 stop8h 35m

$404

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Di 5/5

6:00 am-9:40 am

1 stop5h 40m

Seattle/Tacoma Intl

Sa 5/9

5:00 am-8:31 pm

2 stops13h 31m

$406

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sa 5/16

6:00 am-2:36 pm

2 stops10h 36m

Seattle/Tacoma Intl

Sa 5/23

5:00 am-12:56 pm

1 stop5h 56m

$410

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Di 5/5

1:55 pm-9:06 pm

2 stops9h 11m

Seattle/Tacoma Intl

Sa 5/9

7:08 am-8:31 pm

2 stops11h 23m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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, July 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 $328. If you don’t want to visit Seattle in July, 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 28% 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

5h 40m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 5h 40m
There are no direct flights from Bismarck to Seattle. There are no popular flight routes from Bismarck to Seattle.
Search flight deals

Frequently asked questions about flying from Bismarck to Seattle

  • 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 5h 40m, 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
8,374 reviews
Search Delta flights
United AirlinesPriceFrom $339Free CancellationRating
7.4
9,538 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
Redmond
Marysville
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Centralia
Fife
Westport
Kirkland
Tumwater

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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