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Cheap flights from Bismarck to Seattle from $225

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 9/3. 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.
Multiple Airlines Logo
10:18 pm - 10:39 am
BIS
-
SEA
38h 21m
2 stops
Multiple Airlines Logo
8:53 pm - 1:48 pm
SEA
-
BIS
14h 55m
1 stop
$255Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
10:18 pm - 10:39 am
BIS
-
SEA
38h 21m
2 stops
Multiple Airlines Logo
8:53 pm - 1:48 pm
SEA
-
BIS
14h 55m
1 stop
$287Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Delta Logo
5:00 am - 8:48 am
BIS
-
SEA
5h 48m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$311Delta
Tue, Aug 18 - Tue, Aug 25
Multiple Airlines Logo
10:18 pm - 10:39 am
BIS
-
SEA
38h 21m
2 stops
Multiple Airlines Logo
8:53 pm - 1:48 pm
SEA
-
BIS
14h 55m
1 stop
$313Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Delta Logo
1:27 pm - 8:50 pm
BIS
-
SEA
9h 23m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$315Delta
Mon, Aug 17 - Wed, Aug 26
United Airlines Logo
6:00 am - 2:24 pm
BIS
-
SEA
10h 24m
2 stops
United Airlines Logo
3:55 pm - 11:43 pm
SEA
-
BIS
5h 48m
1 stop
$316United Airlines
Wed, Sep 23 - Wed, Sep 30
Delta Logo
3:18 pm - 8:50 pm
BIS
-
SEA
7h 32m
1 stop
Delta Logo
6:00 am - 4:44 pm
SEA
-
BIS
8h 44m
1 stop
$319Delta
Thu, Oct 29 - Sun, Nov 1
Delta Logo
5:36 pm - 10:00 pm
BIS
-
SEA
6h 24m
1 stop
Delta Logo
11:59 pm - 10:32 am
SEA
-
BIS
8h 33m
1 stop
$340Delta
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
12:34 pm - 11:04 am
BIS
-
SEA
24h 30m
1 stop
Multiple Airlines Logo
8:13 pm - 11:44 am
SEA
-
BIS
13h 31m
1 stop
$344Multiple Airlines
Sun, Aug 9 - Wed, Aug 12
Delta Logo
5:36 pm - 10:00 pm
BIS
-
SEA
6h 24m
1 stop
Delta Logo
11:59 pm - 10:32 am
SEA
-
BIS
8h 33m
1 stop
$367Delta
Sat, Sep 5 - Sat, Sep 12

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United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
Sep 23
BIS6:00 amBismarck
10h 24m
2 stops
SEA2:24 pmSeattle/Tacoma Intl
Sep 30
SEA3:55 pmSeattle/Tacoma Intl
5h 48m
1 stop
BIS11:43 pmBismarck
$316
United Airlines
Oct 28
BIS5:50 amBismarck
12h 37m
2 stops
SEA4:27 pmSeattle/Tacoma Intl
Oct 31
SEA3:02 pmSeattle/Tacoma Intl
6h 45m
1 stop
BIS11:47 pmBismarck
$406
United Airlines
Oct 28
BIS5:50 amBismarck
12h 37m
2 stops
SEA4:27 pmSeattle/Tacoma Intl
Oct 31
SEA8:50 amSeattle/Tacoma Intl
12h 57m
2 stops
BIS11:47 pmBismarck
$411

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
$371
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
$397
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
$427

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 July 6, 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

Mon 8/17

10:18 pm-10:39 am

2 stops38h 21m

Seattle/Tacoma Intl

Wed 8/26

8:53 pm-1:48 pm

1 stop14h 55m

$255

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 8/17

10:18 pm-10:39 am

2 stops38h 21m

Seattle/Tacoma Intl

Wed 8/26

8:53 pm-1:48 pm

1 stop14h 55m

$287
Quickest round-trip

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Tue 8/18

5:00 am-8:48 am

1 stop5h 48m

Seattle/Tacoma Intl

Tue 8/25

11:59 pm-10:30 am

1 stop8h 31m

$311

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 8/17

10:18 pm-10:39 am

2 stops38h 21m

Seattle/Tacoma Intl

Wed 8/26

8:53 pm-1:48 pm

1 stop14h 55m

$313

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 8/17

1:27 pm-8:50 pm

1 stop9h 23m

Seattle/Tacoma Intl

Wed 8/26

11:59 pm-10:30 am

1 stop8h 31m

$315

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 9/23

6:00 am-2:24 pm

2 stops10h 24m

Seattle/Tacoma Intl

Wed 9/30

3:55 pm-11:43 pm

1 stop5h 48m

$316

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 10/29

3:18 pm-8:50 pm

1 stop7h 32m

Seattle/Tacoma Intl

Sun 11/1

6:00 am-4:44 pm

1 stop8h 44m

$319

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/5

5:36 pm-10:00 pm

1 stop6h 24m

Seattle/Tacoma Intl

Sat 9/12

11:59 pm-10:32 am

1 stop8h 33m

$340

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 8/9

12:34 pm-11:04 am

1 stop24h 30m

Seattle/Tacoma Intl

Wed 8/12

8:13 pm-11:44 am

1 stop13h 31m

$344

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/5

5:36 pm-10:00 pm

1 stop6h 24m

Seattle/Tacoma Intl

Sat 9/12

11:59 pm-10:32 am

1 stop8h 33m

$367

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 March to fly from Bismarck, when ticket prices are also cheap, with an average price of $399.

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 48m

Direct flights

None
The fastest flight from Bismarck to Seattle takes 5h 48m
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 48m, 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
7.8
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,938 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
Cle Elum
Federal Way
Fife
Marysville
Centralia
Kirkland
Shoreline
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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