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Cheap flights from Bismarck to Seattle from $355

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Bismarck to Seattle departing on 6/5. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Bismarck to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:42 pm - 11:43 pm
BIS
-
SEA
8h 01m
1 stop
Delta Logo
9:05 am - 5:02 pm
SEA
-
BIS
5h 57m
1 stop
$355Delta
Fri, Jun 5 - Wed, Jun 10
United Airlines Logo
6:25 pm - 11:10 pm
BIS
-
SEA
6h 45m
1 stop
United Airlines Logo
3:40 pm - 11:41 pm
SEA
-
BIS
6h 01m
1 stop
$425United Airlines
Wed, Jun 17 - Wed, Jun 24
Multiple Airlines Logo
12:06 pm - 10:39 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:12 pm - 11:16 am
SEA
-
BIS
13h 04m
1 stop
$438Multiple Airlines
Sun, Jul 19 - Wed, Jul 29
United Airlines Logo
6:00 am - 2:36 pm
BIS
-
SEA
10h 36m
2 stops
United Airlines Logo
5:05 am - 1:05 pm
SEA
-
BIS
6h 00m
1 stop
$449United Airlines
Sat, May 16 - Wed, May 20
Multiple Airlines Logo
12:06 pm - 10:39 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
11:54 am - 11:16 am
SEA
-
BIS
21h 22m
2 stops
$468Multiple Airlines
Sun, Jul 19 - Wed, Jul 29
Delta Logo
1:19 pm - 8:42 pm
BIS
-
SEA
9h 23m
1 stop
Delta Logo
11:59 pm - 10:29 am
SEA
-
BIS
8h 30m
1 stop
$471Delta
Wed, May 6 - Mon, May 11
American Airlines Logo
2:26 pm - 10:47 pm
BIS
-
SEA
10h 21m
1 stop
American Airlines Logo
7:20 am - 10:55 pm
SEA
-
BIS
13h 35m
2 stops
$476American Airlines
Wed, May 6 - Mon, May 11
American Airlines Logo
2:26 pm - 12:36 am
BIS
-
SEA
12h 10m
2 stops
American Airlines Logo
7:20 am - 10:55 pm
SEA
-
BIS
13h 35m
2 stops
$481American Airlines
Wed, May 6 - Mon, May 11
United Airlines Logo
6:00 am - 9:40 am
BIS
-
SEA
5h 40m
1 stop
United Airlines Logo
5:05 am - 1:05 pm
SEA
-
BIS
6h 00m
1 stop
$486United Airlines
Tue, May 12 - Sun, May 17
United Airlines Logo
1:55 pm - 1:12 am
BIS
-
SEA
13h 17m
2 stops
United Airlines Logo
5:05 am - 1:05 pm
SEA
-
BIS
6h 00m
1 stop
$491United Airlines
Tue, May 12 - Sun, May 17

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Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
Oct 14
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
Jun 5
BIS5:42 pmBismarck
8h 01m
1 stop
SEA11:43 pmSeattle/Tacoma Intl
Jun 10
SEA9:05 amSeattle/Tacoma Intl
5h 57m
1 stop
BIS5:02 pmBismarck
$355
Delta
May 6
BIS1:19 pmBismarck
9h 23m
1 stop
SEA8:42 pmSeattle/Tacoma Intl
May 11
SEA11:59 pmSeattle/Tacoma Intl
8h 30m
1 stop
BIS10:29 amBismarck
$471

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Oct 27
BIS5:07 pmBismarck
6h 05m
1 stop
SEA9:12 pmSeattle/Tacoma Intl
Oct 31
SEA5:07 amSeattle/Tacoma Intl
5h 41m
1 stop
BIS12:48 pmBismarck
$401
United Airlines
Oct 27
BIS5:45 amBismarck
6h 14m
1 stop
SEA9:59 amSeattle/Tacoma Intl
Oct 31
SEA9:02 amSeattle/Tacoma Intl
12h 35m
2 stops
BIS11:37 pmBismarck
$406
United Airlines
Jun 17
BIS6:25 pmBismarck
6h 45m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Jun 24
SEA3:40 pmSeattle/Tacoma Intl
6h 01m
1 stop
BIS11:41 pmBismarck
$425

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 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

Fri 6/5

5:42 pm-11:43 pm

1 stop8h 01m

Seattle/Tacoma Intl

Wed 6/10

9:05 am-5:02 pm

1 stop5h 57m

$355

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 6/17

6:25 pm-11:10 pm

1 stop6h 45m

Seattle/Tacoma Intl

Wed 6/24

3:40 pm-11:41 pm

1 stop6h 01m

$425

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 7/19

12:06 pm-10:39 am

1 stop24h 33m

Seattle/Tacoma Intl

Wed 7/29

8:12 pm-11:16 am

1 stop13h 04m

$438

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 5/16

6:00 am-2:36 pm

2 stops10h 36m

Seattle/Tacoma Intl

Wed 5/20

5:05 am-1:05 pm

1 stop6h 00m

$449

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 7/19

12:06 pm-10:39 am

1 stop24h 33m

Seattle/Tacoma Intl

Wed 7/29

11:54 am-11:16 am

2 stops21h 22m

$468

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 5/6

1:19 pm-8:42 pm

1 stop9h 23m

Seattle/Tacoma Intl

Mon 5/11

11:59 pm-10:29 am

1 stop8h 30m

$471

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 5/6

2:26 pm-10:47 pm

1 stop10h 21m

Seattle/Tacoma Intl

Mon 5/11

7:20 am-10:55 pm

2 stops13h 35m

$476

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 5/6

2:26 pm-12:36 am

2 stops12h 10m

Seattle/Tacoma Intl

Mon 5/11

7:20 am-10:55 pm

2 stops13h 35m

$481
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 5/12

6:00 am-9:40 am

1 stop5h 40m

Seattle/Tacoma Intl

Sun 5/17

5:05 am-1:05 pm

1 stop6h 00m

$486

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 5/12

1:55 pm-1:12 am

2 stops13h 17m

Seattle/Tacoma Intl

Sun 5/17

5:05 am-1:05 pm

1 stop6h 00m

$491

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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
8,460 reviews
Search Delta flights
United AirlinesPriceFrom $310Free CancellationRating
7.4
9,682 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
Marysville
Puyallup
Tukwila
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Shoreline
Westport
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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