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Cheap flights from Bismarck to Seattle from $311

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 8/29. 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

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
7:31 am - 1:00 pm
BIS
-
SEA
7h 29m
1 stop
Delta Logo
2:30 pm - 11:12 pm
SEA
-
BIS
6h 42m
1 stop
$311Delta
Sat, Aug 29 - Tue, Sep 1
Delta Logo
5:36 pm - 10:00 pm
BIS
-
SEA
6h 24m
1 stop
Delta Logo
9:05 am - 7:53 pm
SEA
-
BIS
8h 48m
1 stop
$320Delta
Sat, Sep 5 - Fri, Sep 11
Delta Logo
5:00 am - 11:00 am
BIS
-
SEA
8h 00m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$329Delta
Fri, Aug 28 - Mon, Aug 31
Delta Logo
5:36 pm - 11:54 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
6:05 am - 4:56 pm
SEA
-
BIS
8h 51m
1 stop
$354Delta
Thu, Sep 3 - Sun, Sep 6
Delta Logo
5:36 pm - 11:54 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$384Delta
Thu, Aug 27 - Sun, Aug 30
Delta Logo
5:00 am - 8:48 am
BIS
-
SEA
5h 48m
1 stop
Delta Logo
9:35 am - 11:12 pm
SEA
-
BIS
11h 37m
2 stops
$389Delta
Wed, Sep 2 - Sat, Sep 5
Delta Logo
5:40 pm - 11:55 pm
BIS
-
SEA
8h 15m
1 stop
Delta Logo
11:59 pm - 10:32 am
SEA
-
BIS
8h 33m
1 stop
$398Delta
Thu, Sep 17 - Sun, Sep 20
Multiple Airlines Logo
2:38 pm - 10:35 am
BIS
-
SEA
21h 57m
1 stop
Multiple Airlines Logo
8:13 pm - 9:25 pm
SEA
-
BIS
23h 12m
2 stops
$410Multiple Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
5:36 pm - 11:54 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
6:35 pm - 10:48 am
SEA
-
BIS
14h 13m
2 stops
$413Delta
Fri, Sep 4 - Mon, Sep 7
Delta Logo
9:50 am - 10:05 pm
BIS
-
SEA
14h 15m
2 stops
Delta Logo
11:59 pm - 10:32 am
SEA
-
BIS
8h 33m
1 stop
$418Delta
Sat, Sep 19 - Tue, Sep 22

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Delta flights from Bismarck to Seattle

Our best Delta deals on Bismarck to Seattle flight tickets
Delta
Aug 29
BIS7:31 amBismarck
7h 29m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
Sep 1
SEA2:30 pmSeattle/Tacoma Intl
6h 42m
1 stop
BIS11:12 pmBismarck
$311
Delta
Sep 5
BIS5:36 pmBismarck
6h 24m
1 stop
SEA10:00 pmSeattle/Tacoma Intl
Sep 11
SEA9:05 amSeattle/Tacoma Intl
8h 48m
1 stop
BIS7:53 pmBismarck
$320
Delta
Aug 28
BIS5:00 amBismarck
8h 00m
1 stop
SEA11:00 amSeattle/Tacoma Intl
Aug 31
SEA11:59 pmSeattle/Tacoma Intl
8h 31m
1 stop
BIS10:30 amBismarck
$329

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
Sep 5
BIS1:55 pmBismarck
10h 24m
1 stop
SEA10:19 pmSeattle/Tacoma Intl
Sep 11
SEA10:17 amSeattle/Tacoma Intl
10h 35m
1 stop
BIS10:52 pmBismarck
$487
American Airlines
Aug 14
BIS1:55 pmBismarck
10h 31m
1 stop
SEA10:26 pmSeattle/Tacoma Intl
Aug 18
SEA11:56 pmSeattle/Tacoma Intl
10h 31m
1 stop
BIS12:27 pmBismarck
$533
American Airlines
Sep 5
BIS1:55 pmBismarck
11h 34m
2 stops
SEA11:29 pmSeattle/Tacoma Intl
Sep 11
SEA10:17 amSeattle/Tacoma Intl
10h 35m
1 stop
BIS10:52 pmBismarck
$538

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 June 10, 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
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 8/29

7:31 am-1:00 pm

1 stop7h 29m

Seattle/Tacoma Intl

Tue 9/1

2:30 pm-11:12 pm

1 stop6h 42m

$311

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/5

5:36 pm-10:00 pm

1 stop6h 24m

Seattle/Tacoma Intl

Fri 9/11

9:05 am-7:53 pm

1 stop8h 48m

$320

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 8/28

5:00 am-11:00 am

1 stop8h 00m

Seattle/Tacoma Intl

Mon 8/31

11:59 pm-10:30 am

1 stop8h 31m

$329

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 9/3

5:36 pm-11:54 pm

1 stop8h 18m

Seattle/Tacoma Intl

Sun 9/6

6:05 am-4:56 pm

1 stop8h 51m

$354

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 8/27

5:36 pm-11:54 pm

1 stop8h 18m

Seattle/Tacoma Intl

Sun 8/30

11:59 pm-10:30 am

1 stop8h 31m

$384

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 9/2

5:00 am-8:48 am

1 stop5h 48m

Seattle/Tacoma Intl

Sat 9/5

9:35 am-11:12 pm

2 stops11h 37m

$389

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 9/17

5:40 pm-11:55 pm

1 stop8h 15m

Seattle/Tacoma Intl

Sun 9/20

11:59 pm-10:32 am

1 stop8h 33m

$398

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 8/27

2:38 pm-10:35 am

1 stop21h 57m

Seattle/Tacoma Intl

Sun 8/30

8:13 pm-9:25 pm

2 stops23h 12m

$410

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 9/4

5:36 pm-11:54 pm

1 stop8h 18m

Seattle/Tacoma Intl

Mon 9/7

6:35 pm-10:48 am

2 stops14h 13m

$413

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/19

9:50 am-10:05 pm

2 stops14h 15m

Seattle/Tacoma Intl

Tue 9/22

11:59 pm-10:32 am

1 stop8h 33m

$418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 $264. If you don’t want to visit Seattle in July, then you should wait until October to fly from Bismarck, when ticket prices are also cheap, with an average price of $378.

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
8,396 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,804 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
Lakewood
Puyallup
Tukwila
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
Kirkland

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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