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Cheap flights from Bismarck to Seattle from $238

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 6/14. 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
3:00 pm - 8:27 pm
BIS
-
SEA
7h 27m
1 stop
Delta Logo
6:05 am - 2:25 pm
SEA
-
BIS
6h 20m
1 stop
$311Delta
Tue, Oct 6 - Sat, Oct 17
Delta Logo
5:30 pm - 11:59 pm
BIS
-
SEA
8h 29m
1 stop
Delta Logo
6:05 am - 2:25 pm
SEA
-
BIS
6h 20m
1 stop
$325Delta
Wed, Oct 7 - Sun, Oct 18
Delta Logo
3:00 pm - 8:27 pm
BIS
-
SEA
7h 27m
1 stop
Delta Logo
6:05 am - 2:25 pm
SEA
-
BIS
6h 20m
1 stop
$355Delta
Tue, Oct 6 - Mon, Oct 19
Delta Logo
5:30 pm - 11:26 pm
BIS
-
SEA
7h 56m
1 stop
Delta Logo
6:05 am - 4:54 pm
SEA
-
BIS
8h 49m
1 stop
$369Delta
Mon, Oct 5 - Mon, Oct 19
Delta Logo
11:16 am - 5:00 pm
BIS
-
SEA
7h 44m
1 stop
Delta Logo
11:59 pm - 10:36 am
SEA
-
BIS
8h 37m
1 stop
$379Delta
Fri, Jun 19 - Mon, Jun 22
American Airlines Logo
6:45 am - 4:36 pm
BIS
-
SEA
11h 51m
2 stops
American Airlines Logo
1:17 am - 12:04 pm
SEA
-
BIS
8h 47m
1 stop
$398American Airlines
Tue, Oct 6 - Fri, Oct 16
United Airlines Logo
5:45 am - 9:59 am
BIS
-
SEA
6h 14m
1 stop
United Airlines Logo
5:07 am - 12:48 pm
SEA
-
BIS
5h 41m
1 stop
$401United Airlines
Tue, Oct 27 - Sat, Oct 31
Multiple Airlines Logo
12:06 pm - 10:39 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:12 pm - 9:14 pm
SEA
-
BIS
23h 02m
2 stops
$408Multiple Airlines
Sun, Jul 19 - Thu, Jul 23
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
$415United Airlines
Tue, Oct 27 - Sat, Oct 31
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
4:00 pm - 10:40 am
SEA
-
BIS
16h 40m
2 stops
$424Delta
Wed, Jul 22 - Tue, Jul 28

Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
Oct 6
BIS3:00 pmBismarck
7h 27m
1 stop
SEA8:27 pmSeattle/Tacoma Intl
Oct 17
SEA6:05 amSeattle/Tacoma Intl
6h 20m
1 stop
BIS2:25 pmBismarck
$311
Delta
Oct 7
BIS5:30 pmBismarck
8h 29m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Oct 18
SEA6:05 amSeattle/Tacoma Intl
6h 20m
1 stop
BIS2:25 pmBismarck
$325
Delta
Oct 6
BIS3:00 pmBismarck
7h 27m
1 stop
SEA8:27 pmSeattle/Tacoma Intl
Oct 19
SEA6:05 amSeattle/Tacoma Intl
6h 20m
1 stop
BIS2:25 pmBismarck
$355

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
Oct 6
BIS6:45 amBismarck
11h 51m
2 stops
SEA4:36 pmSeattle/Tacoma Intl
Oct 16
SEA1:17 amSeattle/Tacoma Intl
8h 47m
1 stop
BIS12:04 pmBismarck
$398
American Airlines
Oct 7
BIS6:45 amBismarck
11h 51m
2 stops
SEA4:36 pmSeattle/Tacoma Intl
Oct 16
SEA1:17 amSeattle/Tacoma Intl
8h 47m
1 stop
BIS12:04 pmBismarck
$469
American Airlines
Jun 3
BIS12:54 pmBismarck
9h 39m
1 stop
SEA8:33 pmSeattle/Tacoma Intl
Jun 8
SEA11:58 pmSeattle/Tacoma Intl
10h 19m
1 stop
BIS12:17 pmBismarck
$509

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 May 8, 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

Tue 10/6

3:00 pm-8:27 pm

1 stop7h 27m

Seattle/Tacoma Intl

Sat 10/17

6:05 am-2:25 pm

1 stop6h 20m

$311

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 10/7

5:30 pm-11:59 pm

1 stop8h 29m

Seattle/Tacoma Intl

Sun 10/18

6:05 am-2:25 pm

1 stop6h 20m

$325

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 10/6

3:00 pm-8:27 pm

1 stop7h 27m

Seattle/Tacoma Intl

Mon 10/19

6:05 am-2:25 pm

1 stop6h 20m

$355

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 10/5

5:30 pm-11:26 pm

1 stop7h 56m

Seattle/Tacoma Intl

Mon 10/19

6:05 am-4:54 pm

1 stop8h 49m

$369

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 6/19

11:16 am-5:00 pm

1 stop7h 44m

Seattle/Tacoma Intl

Mon 6/22

11:59 pm-10:36 am

1 stop8h 37m

$379

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 10/6

6:45 am-4:36 pm

2 stops11h 51m

Seattle/Tacoma Intl

Fri 10/16

1:17 am-12:04 pm

1 stop8h 47m

$398
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 10/27

5:45 am-9:59 am

1 stop6h 14m

Seattle/Tacoma Intl

Sat 10/31

5:07 am-12:48 pm

1 stop5h 41m

$401

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 7/19

12:06 pm-10:39 am

1 stop24h 33m

Seattle/Tacoma Intl

Thu 7/23

8:12 pm-9:14 pm

2 stops23h 02m

$408

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 10/27

5:07 pm-10:59 pm

1 stop7h 52m

Seattle/Tacoma Intl

Sat 10/31

5:07 am-12:48 pm

1 stop5h 41m

$415

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

Seattle/Tacoma Intl

Tue 7/28

4:00 pm-10:40 am

2 stops16h 40m

$424

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $399.

Can stopping save me money on Bismarck to Seattle flights?

You could potentially save up to 3% 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 14m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 6h 14m
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 6h 14m, 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
8,456 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,694 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
Redmond
Kent
Tukwila
Puyallup
Marysville
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
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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