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Cheap flights from Bismarck to Seattle from $281

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 5/15. 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
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
4:50 pm - 11:40 pm
BIS
-
SEA
8h 50m
1 stop
Delta Logo
11:59 pm - 10:33 am
SEA
-
BIS
8h 34m
1 stop
$294Delta
Fri, Mar 20 - Mon, Mar 23
American Airlines Logo
2:26 pm - 9:22 pm
BIS
-
SEA
8h 56m
1 stop
American Airlines Logo
11:58 pm - 12:24 pm
SEA
-
BIS
10h 26m
1 stop
$346American Airlines
Thu, Apr 30 - Sat, May 30
United Airlines Logo
6:00 am - 9:46 am
BIS
-
SEA
5h 46m
1 stop
United Airlines Logo
3:48 pm - 11:43 pm
SEA
-
BIS
5h 55m
1 stop
$351United Airlines
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
6:25 pm - 10:59 pm
BIS
-
SEA
6h 34m
1 stop
United Airlines Logo
2:55 pm - 11:43 pm
SEA
-
BIS
6h 48m
1 stop
$354United Airlines
Fri, Feb 27 - Wed, Mar 4
United Airlines Logo
6:25 pm - 10:59 pm
BIS
-
SEA
6h 34m
1 stop
United Airlines Logo
5:00 am - 1:03 pm
SEA
-
BIS
6h 03m
1 stop
$374United Airlines
Sun, Mar 1 - Sat, Mar 7
United Airlines Logo
6:00 am - 9:46 am
BIS
-
SEA
5h 46m
1 stop
United Airlines Logo
3:48 pm - 11:43 pm
SEA
-
BIS
5h 55m
1 stop
$381United Airlines
Thu, Apr 9 - Mon, Apr 13
Delta Logo
1:26 pm - 8:50 pm
BIS
-
SEA
9h 24m
1 stop
Delta Logo
11:59 pm - 10:34 am
SEA
-
BIS
8h 35m
1 stop
$389Delta
Fri, Apr 10 - Mon, Apr 13
Delta Logo
10:20 am - 2:54 pm
BIS
-
SEA
6h 34m
1 stop
Delta Logo
3:30 pm - 11:22 pm
SEA
-
BIS
5h 52m
1 stop
$404Delta
Sat, Feb 28 - Mon, Mar 2
United Airlines Logo
1:45 pm - 8:57 pm
BIS
-
SEA
9h 12m
2 stops
United Airlines Logo
3:48 pm - 11:43 pm
SEA
-
BIS
5h 55m
1 stop
$406United Airlines
Sat, Apr 18 - Tue, Apr 21
Delta Logo
5:00 am - 10:55 am
BIS
-
SEA
7h 55m
1 stop
Delta Logo
6:10 am - 4:41 pm
SEA
-
BIS
8h 31m
1 stop
$409Delta
Fri, Feb 20 - Fri, Feb 27

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Apr 18
BIS6:00 amBismarck
5h 46m
1 stop
SEA9:46 amSeattle/Tacoma Intl
Apr 21
SEA3:48 pmSeattle/Tacoma Intl
5h 55m
1 stop
BIS11:43 pmBismarck
$351
United Airlines
Feb 27
BIS6:25 pmBismarck
6h 34m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Mar 4
SEA2:55 pmSeattle/Tacoma Intl
6h 48m
1 stop
BIS11:43 pmBismarck
$354
United Airlines
Mar 1
BIS6:25 pmBismarck
6h 34m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Mar 7
SEA5:00 amSeattle/Tacoma Intl
6h 03m
1 stop
BIS1:03 pmBismarck
$374

Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
Mar 20
BIS4:50 pmBismarck
8h 50m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
Mar 23
SEA11:59 pmSeattle/Tacoma Intl
8h 34m
1 stop
BIS10:33 amBismarck
$294
Delta
Apr 10
BIS1:26 pmBismarck
9h 24m
1 stop
SEA8:50 pmSeattle/Tacoma Intl
Apr 13
SEA11:59 pmSeattle/Tacoma Intl
8h 35m
1 stop
BIS10:34 amBismarck
$389
Delta
Feb 28
BIS10:20 amBismarck
6h 34m
1 stop
SEA2:54 pmSeattle/Tacoma Intl
Mar 2
SEA3:30 pmSeattle/Tacoma Intl
5h 52m
1 stop
BIS11:22 pmBismarck
$404

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 February 17, 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

Fri 3/20

4:50 pm-11:40 pm

1 stop8h 50m

Seattle/Tacoma Intl

Mon 3/23

11:59 pm-10:33 am

1 stop8h 34m

$294

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 4/30

2:26 pm-9:22 pm

1 stop8h 56m

Seattle/Tacoma Intl

Sat 5/30

11:58 pm-12:24 pm

1 stop10h 26m

$346

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 4/18

6:00 am-9:46 am

1 stop5h 46m

Seattle/Tacoma Intl

Tue 4/21

3:48 pm-11:43 pm

1 stop5h 55m

$351

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 2/27

6:25 pm-10:59 pm

1 stop6h 34m

Seattle/Tacoma Intl

Wed 3/4

2:55 pm-11:43 pm

1 stop6h 48m

$354

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 3/1

6:25 pm-10:59 pm

1 stop6h 34m

Seattle/Tacoma Intl

Sat 3/7

5:00 am-1:03 pm

1 stop6h 03m

$374

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 4/9

6:00 am-9:46 am

1 stop5h 46m

Seattle/Tacoma Intl

Mon 4/13

3:48 pm-11:43 pm

1 stop5h 55m

$381

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 4/10

1:26 pm-8:50 pm

1 stop9h 24m

Seattle/Tacoma Intl

Mon 4/13

11:59 pm-10:34 am

1 stop8h 35m

$389

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 2/28

10:20 am-2:54 pm

1 stop6h 34m

Seattle/Tacoma Intl

Mon 3/2

3:30 pm-11:22 pm

1 stop5h 52m

$404

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 4/18

1:45 pm-8:57 pm

2 stops9h 12m

Seattle/Tacoma Intl

Tue 4/21

3:48 pm-11:43 pm

1 stop5h 55m

$406

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 2/20

5:00 am-10:55 am

1 stop7h 55m

Seattle/Tacoma Intl

Fri 2/27

6:10 am-4:41 pm

1 stop8h 31m

$409

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 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 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

5h 46m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 5h 46m
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 5h 46m, 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
8,206 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,308 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
Lakewood
Tukwila
Federal Way
Kirkland
Westport
Centralia
Fife
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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