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Cheap flights from Bismarck to Seattle from $304

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 6/22. 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
5:42 pm - 11:59 pm
BIS
-
SEA
8h 17m
1 stop
Delta Logo
11:59 pm - 10:40 am
SEA
-
BIS
8h 41m
1 stop
$315Delta
Sat, Jul 4 - Mon, Jul 13
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
$319Delta
Fri, Aug 14 - Mon, Aug 17
Delta Logo
5:42 pm - 11:59 pm
BIS
-
SEA
8h 17m
1 stop
Delta Logo
11:59 pm - 10:40 am
SEA
-
BIS
8h 41m
1 stop
$340Delta
Sat, Jul 4 - Wed, Jul 8
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:12 pm - 11:16 am
SEA
-
BIS
13h 04m
1 stop
$364Multiple Airlines
Thu, Jun 25 - Sat, Jul 4
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:12 pm - 11:16 am
SEA
-
BIS
13h 04m
1 stop
$365Multiple Airlines
Thu, Jun 25 - Sat, Jul 4
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
11:59 pm - 10:40 am
SEA
-
BIS
8h 41m
1 stop
$369Delta
Tue, Jul 21 - Mon, Jul 27
Multiple Airlines Logo
9:11 pm - 10:35 am
BIS
-
SEA
39h 24m
2 stops
Multiple Airlines Logo
8:12 pm - 11:16 am
SEA
-
BIS
13h 04m
1 stop
$371Multiple Airlines
Mon, Jun 29 - Sat, Jul 4
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:53 pm - 9:10 pm
SEA
-
BIS
46h 17m
2 stops
$372Multiple Airlines
Thu, Jun 25 - Mon, Jul 6
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
11:59 pm - 10:40 am
SEA
-
BIS
8h 41m
1 stop
$375Delta
Tue, Jul 21 - Mon, Jul 27
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:53 pm - 9:14 pm
SEA
-
BIS
22h 21m
2 stops
$389Multiple Airlines
Thu, Jun 25 - Sun, Jul 5

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
May 28
BIS12:42 pmBismarck
9h 51m
1 stop
SEA8:33 pmSeattle/Tacoma Intl
Jun 8
SEA11:58 pmSeattle/Tacoma Intl
10h 19m
1 stop
BIS12:17 pmBismarck
$561
American Airlines
Jun 6
BIS12:47 pmBismarck
9h 52m
1 stop
SEA8:39 pmSeattle/Tacoma Intl
Jun 16
SEA11:58 pmSeattle/Tacoma Intl
10h 19m
1 stop
BIS12:17 pmBismarck
$564
American Airlines
May 29
BIS12:42 pmBismarck
9h 51m
1 stop
SEA8:33 pmSeattle/Tacoma Intl
Jun 3
SEA11:58 pmSeattle/Tacoma Intl
10h 19m
1 stop
BIS12:17 pmBismarck
$588

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Oct 2
BIS5:07 pmBismarck
9h 58m
2 stops
SEA1:05 amSeattle/Tacoma Intl
Oct 4
SEA5:00 amSeattle/Tacoma Intl
5h 48m
1 stop
BIS12:48 pmBismarck
$503
United Airlines
May 28
BIS6:25 pmBismarck
6h 45m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Jun 3
SEA2:36 pmSeattle/Tacoma Intl
7h 05m
1 stop
BIS11:41 pmBismarck
$541
United Airlines
May 29
BIS1:45 pmBismarck
6h 14m
1 stop
SEA5:59 pmSeattle/Tacoma Intl
Jun 5
SEA5:07 amSeattle/Tacoma Intl
5h 49m
1 stop
BIS12:56 pmBismarck
$557

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 25, 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

Sat 7/4

5:42 pm-11:59 pm

1 stop8h 17m

Seattle/Tacoma Intl

Mon 7/13

11:59 pm-10:40 am

1 stop8h 41m

$315
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 8/14

5:36 pm-11:54 pm

1 stop8h 18m

Seattle/Tacoma Intl

Mon 8/17

11:59 pm-10:30 am

1 stop8h 31m

$319

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 7/4

5:42 pm-11:59 pm

1 stop8h 17m

Seattle/Tacoma Intl

Wed 7/8

11:59 pm-10:40 am

1 stop8h 41m

$340

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 6/25

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Sat 7/4

8:12 pm-11:16 am

1 stop13h 04m

$364

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 6/25

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Sat 7/4

8:12 pm-11:16 am

1 stop13h 04m

$365

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 7/21

5:40 pm-11:58 pm

1 stop8h 18m

Seattle/Tacoma Intl

Mon 7/27

11:59 pm-10:40 am

1 stop8h 41m

$369

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 6/29

9:11 pm-10:35 am

2 stops39h 24m

Seattle/Tacoma Intl

Sat 7/4

8:12 pm-11:16 am

1 stop13h 04m

$371

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 6/25

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Mon 7/6

8:53 pm-9:10 pm

2 stops46h 17m

$372

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 7/21

5:40 pm-11:58 pm

1 stop8h 18m

Seattle/Tacoma Intl

Mon 7/27

11:59 pm-10:40 am

1 stop8h 41m

$375

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 6/25

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Sun 7/5

8:53 pm-9:14 pm

2 stops22h 21m

$389

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 $313. 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

5h 44m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 5h 44m
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 44m, 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
8,434 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,747 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
Puyallup
Lakewood
Tukwila
Marysville
Cle Elum
Federal Way
Fife
Centralia
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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