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Cheap flights from Bismarck to Seattle from $221

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 7/3. 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

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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.
American Airlines Logo
1:56 pm - 7:30 pm
BIS
-
SEA
7h 34m
1 stop
American Airlines Logo
1:17 am - 12:04 pm
SEA
-
BIS
8h 47m
1 stop
$311American Airlines
Wed, Oct 7 - Fri, Oct 16
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
8:13 pm - 11:16 am
SEA
-
BIS
13h 03m
1 stop
$312Multiple Airlines
Sun, Jun 28 - Wed, Jul 8
Multiple Airlines Logo
12:06 pm - 10:35 am
BIS
-
SEA
24h 29m
1 stop
Multiple Airlines Logo
8:13 pm - 11:16 am
SEA
-
BIS
13h 03m
1 stop
$323Multiple Airlines
Thu, Jul 2 - Wed, Jul 8
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$331Delta
Sat, Jul 11 - Tue, Jul 14
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
11:03 am - 11:16 am
SEA
-
BIS
22h 13m
2 stops
$341Multiple Airlines
Sun, Jun 28 - Wed, Jul 8
Delta Logo
5:42 pm - 11:59 pm
BIS
-
SEA
8h 17m
1 stop
Delta Logo
11:59 pm - 10:30 am
SEA
-
BIS
8h 31m
1 stop
$345Delta
Wed, Jul 1 - Thu, Jul 9
Multiple Airlines Logo
12:02 pm - 10:35 am
BIS
-
SEA
24h 33m
1 stop
Multiple Airlines Logo
7:41 pm - 9:10 pm
SEA
-
BIS
23h 29m
2 stops
$348Multiple Airlines
Sun, Jun 28 - Tue, Jul 7
Multiple Airlines Logo
12:06 pm - 10:35 am
BIS
-
SEA
24h 29m
1 stop
Multiple Airlines Logo
11:03 am - 11:16 am
SEA
-
BIS
22h 13m
2 stops
$353Multiple Airlines
Thu, Jul 2 - Wed, Jul 8
Multiple Airlines Logo
9:11 pm - 2:18 pm
BIS
-
SEA
43h 07m
2 stops
Multiple Airlines Logo
8:13 pm - 11:16 am
SEA
-
BIS
13h 03m
1 stop
$358Multiple Airlines
Mon, Jun 29 - Wed, Jul 8
Multiple Airlines Logo
12:06 pm - 10:35 am
BIS
-
SEA
24h 29m
1 stop
Multiple Airlines Logo
8:13 pm - 11:16 am
SEA
-
BIS
13h 03m
1 stop
$359Multiple Airlines
Thu, Jul 2 - Sat, Jul 11

American Airlines flights from Bismarck to Seattle

Our best American Airlines deals on Bismarck to Seattle flight tickets
American Airlines
Oct 7
BIS1:56 pmBismarck
7h 34m
1 stop
SEA7:30 pmSeattle/Tacoma Intl
Oct 16
SEA1:17 amSeattle/Tacoma Intl
8h 47m
1 stop
BIS12:04 pmBismarck
$311
American Airlines
Jul 1
BIS12:42 pmBismarck
9h 51m
1 stop
SEA8:33 pmSeattle/Tacoma Intl
Jul 7
SEA11:56 pmSeattle/Tacoma Intl
10h 16m
1 stop
BIS12:12 pmBismarck
$423
American Airlines
Apr 21
BIS2:26 pmBismarck
12h 10m
2 stops
SEA12:36 amSeattle/Tacoma Intl
Apr 25
SEA11:41 amSeattle/Tacoma Intl
9h 14m
1 stop
BIS10:55 pmBismarck
$427

United Airlines flights from Bismarck to Seattle

Our best United Airlines deals on Bismarck to Seattle flight tickets
United Airlines
May 16
BIS6:00 amBismarck
5h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
May 24
SEA5:00 amSeattle/Tacoma Intl
5h 56m
1 stop
BIS12:56 pmBismarck
$387
United Airlines
May 16
BIS6:00 amBismarck
10h 36m
2 stops
SEA2:36 pmSeattle/Tacoma Intl
May 24
SEA5:00 amSeattle/Tacoma Intl
5h 56m
1 stop
BIS12:56 pmBismarck
$391
United Airlines
Oct 7
BIS11:40 amBismarck
8h 53m
2 stops
SEA6:33 pmSeattle/Tacoma Intl
Oct 17
SEA5:07 amSeattle/Tacoma Intl
5h 41m
1 stop
BIS12:48 pmBismarck
$399

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 April 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

Wed 10/7

1:56 pm-7:30 pm

1 stop7h 34m

Seattle/Tacoma Intl

Fri 10/16

1:17 am-12:04 pm

1 stop8h 47m

$311

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 6/28

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Wed 7/8

8:13 pm-11:16 am

1 stop13h 03m

$312

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 7/2

12:06 pm-10:35 am

1 stop24h 29m

Seattle/Tacoma Intl

Wed 7/8

8:13 pm-11:16 am

1 stop13h 03m

$323

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 7/11

5:40 pm-11:58 pm

1 stop8h 18m

Seattle/Tacoma Intl

Tue 7/14

11:59 pm-10:30 am

1 stop8h 31m

$331

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 6/28

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Wed 7/8

11:03 am-11:16 am

2 stops22h 13m

$341

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Wed 7/1

5:42 pm-11:59 pm

1 stop8h 17m

Seattle/Tacoma Intl

Thu 7/9

11:59 pm-10:30 am

1 stop8h 31m

$345

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sun 6/28

12:02 pm-10:35 am

1 stop24h 33m

Seattle/Tacoma Intl

Tue 7/7

7:41 pm-9:10 pm

2 stops23h 29m

$348

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 7/2

12:06 pm-10:35 am

1 stop24h 29m

Seattle/Tacoma Intl

Wed 7/8

11:03 am-11:16 am

2 stops22h 13m

$353

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 6/29

9:11 pm-2:18 pm

2 stops43h 07m

Seattle/Tacoma Intl

Wed 7/8

8:13 pm-11:16 am

1 stop13h 03m

$358

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 7/2

12:06 pm-10:35 am

1 stop24h 29m

Seattle/Tacoma Intl

Sat 7/11

8:13 pm-11:16 am

1 stop13h 03m

$359

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 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 4% 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
8,399 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,562 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
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Tumwater
Shoreline

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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