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Cheap flights from Bismarck to Seattle from $185

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 12/18. 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.
United Airlines Logo
5:10 pm - 9:15 pmBIS-SEA
6h 05m1 stop
United Airlines Logo
5:00 am - 12:51 pmSEA-BIS
5h 51m1 stop
$259United Airlines
Find Deal
mié., ene. 28 - sáb., ene. 31
United Airlines Logo
1:35 pm - 12:51 amBIS-SEA
13h 16m2 stops
United Airlines Logo
5:00 am - 12:51 pmSEA-BIS
5h 51m1 stop
$264United Airlines
Find Deal
mié., ene. 28 - sáb., ene. 31
Delta Logo
7:30 am - 12:58 pmBIS-SEA
7h 28m1 stop
Delta Logo
11:55 pm - 10:40 amSEA-BIS
8h 45m1 stop
$280Delta
Find Deal
vie., oct. 31 - mar., nov. 4
United Airlines Logo
5:45 am - 1:38 pmBIS-SEA
9h 53m2 stops
United Airlines Logo
5:05 am - 1:11 pmSEA-BIS
6h 06m1 stop
$285United Airlines
Find Deal
vie., oct. 31 - mar., nov. 4
Delta Logo
11:30 am - 4:19 pmBIS-SEA
6h 49m1 stop
Delta Logo
7:45 pm - 4:53 pmSEA-BIS
19h 08m2 stops
$313Delta
Find Deal
mié., ene. 28 - vie., ene. 30
Delta Logo
11:30 am - 4:19 pmBIS-SEA
6h 49m1 stop
Delta Logo
6:10 pm - 11:47 amSEA-BIS
15h 37m2 stops
$348Delta
Find Deal
mar., mar. 3 - sáb., mar. 7
American Airlines Logo
6:00 am - 1:10 pmBIS-SEA
9h 10m1 stop
American Airlines Logo
12:59 am - 12:25 pmSEA-BIS
9h 26m1 stop
$358American Airlines
Find Deal
sáb., nov. 15 - vie., nov. 21
United Airlines Logo
1:35 pm - 12:51 amBIS-SEA
13h 16m2 stops
United Airlines Logo
9:25 am - 8:25 pmSEA-BIS
9h 00m2 stops
$410United Airlines
Find Deal
mié., ene. 28 - sáb., ene. 31
American Airlines Logo
3:07 pm - 11:09 pmBIS-SEA
10h 02m1 stop
American Airlines Logo
1:35 am - 12:38 pmSEA-BIS
9h 03m1 stop
$500American Airlines
Find Deal
mar., mar. 3 - vie., mar. 6
American Airlines Logo
3:07 pm - 11:09 pmBIS-SEA
10h 02m1 stop
American Airlines Logo
1:35 am - 12:38 pmSEA-BIS
9h 03m1 stop
$525American Airlines
Find Deal
mar., mar. 3 - vie., mar. 6

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Jan 28
BIS5:10 pmBismarck
6h 05m
1 stop
SEA9:15 pmSeattle/Tacoma Intl
Jan 31
SEA5:00 amSeattle/Tacoma Intl
5h 51m
1 stop
BIS12:51 pmBismarck
$259
Find similar
United Airlines
Jan 28
BIS1:35 pmBismarck
13h 16m
2 stops
SEA12:51 amSeattle/Tacoma Intl
Jan 31
SEA5:00 amSeattle/Tacoma Intl
5h 51m
1 stop
BIS12:51 pmBismarck
$264
Find similar
United Airlines
Oct 31
BIS5:45 amBismarck
9h 53m
2 stops
SEA1:38 pmSeattle/Tacoma Intl
Nov 4
SEA5:05 amSeattle/Tacoma Intl
6h 06m
1 stop
BIS1:11 pmBismarck
$285
Find similar

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
Nov 15
BIS6:00 amBismarck
9h 10m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
Nov 21
SEA12:59 amSeattle/Tacoma Intl
9h 26m
1 stop
BIS12:25 pmBismarck
$358
Find similar
American Airlines
Oct 23
BIS2:49 pmBismarck
10h 10m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Oct 25
SEA12:34 amSeattle/Tacoma Intl
10h 23m
1 stop
BIS12:57 pmBismarck
$369
Find similar
American Airlines
Mar 3
BIS3:07 pmBismarck
10h 02m
1 stop
SEA11:09 pmSeattle/Tacoma Intl
Mar 6
SEA1:35 amSeattle/Tacoma Intl
9h 03m
1 stop
BIS12:38 pmBismarck
$500
Find similar

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 octubre 16, 2025.
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

mié. 1/28

5:10 pm-9:15 pm

1 stop6h 05m

Seattle/Tacoma Intl

sáb. 1/31

5:00 am-12:51 pm

1 stop5h 51m

$259

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mié. 1/28

1:35 pm-12:51 am

2 stops13h 16m

Seattle/Tacoma Intl

sáb. 1/31

5:00 am-12:51 pm

1 stop5h 51m

$264

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

vie. 10/31

7:30 am-12:58 pm

1 stop7h 28m

Seattle/Tacoma Intl

mar. 11/4

11:55 pm-10:40 am

1 stop8h 45m

$280

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

vie. 10/31

5:45 am-1:38 pm

2 stops9h 53m

Seattle/Tacoma Intl

mar. 11/4

5:05 am-1:11 pm

1 stop6h 06m

$285

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mié. 1/28

11:30 am-4:19 pm

1 stop6h 49m

Seattle/Tacoma Intl

vie. 1/30

7:45 pm-4:53 pm

2 stops19h 08m

$313

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mar. 3/3

11:30 am-4:19 pm

1 stop6h 49m

Seattle/Tacoma Intl

sáb. 3/7

6:10 pm-11:47 am

2 stops15h 37m

$348

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

sáb. 11/15

6:00 am-1:10 pm

1 stop9h 10m

Seattle/Tacoma Intl

vie. 11/21

12:59 am-12:25 pm

1 stop9h 26m

$358

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mié. 1/28

1:35 pm-12:51 am

2 stops13h 16m

Seattle/Tacoma Intl

sáb. 1/31

9:25 am-8:25 pm

2 stops9h 00m

$410

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mar. 3/3

3:07 pm-11:09 pm

1 stop10h 02m

Seattle/Tacoma Intl

vie. 3/6

1:35 am-12:38 pm

1 stop9h 03m

$500

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

mar. 3/3

3:07 pm-11:09 pm

1 stop10h 02m

Seattle/Tacoma Intl

vie. 3/6

1:35 am-12:38 pm

1 stop9h 03m

$525

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, February 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 $317. If you don’t want to visit Seattle in February, then you should wait until March to fly from Bismarck, when ticket prices are also cheap, with an average price of $364.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Bismarck is on a Monday. momondo users have found tickets for Monday departures for as low as $575. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Bismarck because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $765.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Bismarck at noon is the least expensive time of day to depart. momondo users have found prices as low as $578 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $692. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Bismarck to Seattle flights?

You could potentially save up to 1% 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

Direct flights

None
There are no direct flights from Bismarck to Seattle. There are no popular flight routes from Bismarck to Seattle.
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  • 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 05m, 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
7,984 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,982 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
Puyallup
Federal Way
Tukwila
Lakewood
Kirkland
Fife
Centralia
Shoreline
Cle Elum
Redmond
Westport

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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sáb. 11/15
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