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Cheap flights from Seattle to Bismarck from $249

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bismarck departing on 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Bismarck

Cheap round-trip flights

United Airlines Logo
3:48 pm - 11:39 pmSEA-BIS
5h 51m1 stop
United Airlines Logo
5:45 am - 10:35 amBIS-SEA
6h 50m1 stop
$259United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
11:55 pm - 10:40 amSEA-BIS
8h 45m1 stop
Delta Logo
7:31 am - 1:00 pmBIS-SEA
7h 29m1 stop
$274Delta
Find Deal
Wed, Oct 8 - Wed, Feb 11
United Airlines Logo
3:35 pm - 11:39 pmSEA-BIS
6h 04m1 stop
United Airlines Logo
6:00 am - 9:59 amBIS-SEA
5h 59m1 stop
$289United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
8:42 am - 11:39 pmSEA-BIS
12h 57m2 stops
United Airlines Logo
5:30 am - 9:55 amBIS-SEA
6h 25m1 stop
$290United Airlines
Find Deal
Wed, Oct 8 - Wed, Feb 11
United Airlines Logo
8:42 am - 9:52 pmSEA-BIS
11h 10m2 stops
United Airlines Logo
6:00 am - 9:59 amBIS-SEA
5h 59m1 stop
$294United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
8:42 am - 11:39 pmSEA-BIS
12h 57m2 stops
United Airlines Logo
8:00 am - 6:27 pmBIS-SEA
12h 27m2 stops
$308United Airlines
Find Deal
Wed, Oct 8 - Wed, Feb 11
United Airlines Logo
5:00 am - 1:00 pmSEA-BIS
6h 00m1 stop
United Airlines Logo
6:00 am - 9:59 amBIS-SEA
5h 59m1 stop
$338United Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
Delta Logo
6:00 am - 4:51 pmSEA-BIS
8h 51m1 stop
Delta Logo
5:32 pm - 11:43 pmBIS-SEA
8h 11m1 stop
$414Delta
Find Deal
Tue, Sep 30 - Sun, Oct 5
American Airlines Logo
12:34 am - 12:57 pmSEA-BIS
10h 23m1 stop
American Airlines Logo
2:56 pm - 9:19 pmBIS-SEA
8h 23m1 stop
$440American Airlines
Find Deal
Tue, Oct 7 - Wed, Feb 11
American Airlines Logo
12:34 am - 12:57 pmSEA-BIS
10h 23m1 stop
American Airlines Logo
2:49 pm - 9:48 pmBIS-SEA
8h 59m1 stop
$509American Airlines
Find Deal
Thu, Oct 16 - Fri, Oct 24

United Airlines flights from Seattle to Bismarck

Our best United Airlines deals on Seattle to Bismarck flight tickets
United Airlines
Nov 19
SEA3:48 pmSeattle/Tacoma Intl
5h 51m
1 stop
BIS11:39 pmBismarck
Nov 23
BIS5:45 amBismarck
6h 50m
1 stop
SEA10:35 amSeattle/Tacoma Intl
$259
Find similar
United Airlines
Oct 1
SEA3:35 pmSeattle/Tacoma Intl
6h 04m
1 stop
BIS11:39 pmBismarck
Oct 5
BIS6:00 amBismarck
5h 59m
1 stop
SEA9:59 amSeattle/Tacoma Intl
$289
Find similar
United Airlines
Oct 8
SEA8:42 amSeattle/Tacoma Intl
12h 57m
2 stops
BIS11:39 pmBismarck
Feb 11
BIS5:30 amBismarck
6h 25m
1 stop
SEA9:55 amSeattle/Tacoma Intl
$290
Find similar

Delta flights from Seattle to Bismarck

Our best Delta deals on Seattle to Bismarck flight tickets
Delta
Oct 8
SEA11:55 pmSeattle/Tacoma Intl
8h 45m
1 stop
BIS10:40 amBismarck
Feb 11
BIS7:31 amBismarck
7h 29m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$274
Find similar
Delta
Sep 30
SEA6:00 amSeattle/Tacoma Intl
8h 51m
1 stop
BIS4:51 pmBismarck
Oct 5
BIS5:32 pmBismarck
8h 11m
1 stop
SEA11:43 pmSeattle/Tacoma Intl
$414
Find similar
Delta
Sep 30
SEA9:25 amSeattle/Tacoma Intl
11h 57m
2 stops
BIS11:22 pmBismarck
Oct 5
BIS11:22 amBismarck
9h 38m
2 stops
SEA7:00 pmSeattle/Tacoma Intl
$1,031
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Bismarck 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 September 19, 2025.
Use the filters below to find and compare flights from Seattle to Bismarck that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 11/19

3:48 pm-11:39 pm

1 stop5h 51m

Bismarck

Sun 11/23

5:45 am-10:35 am

1 stop6h 50m

$259

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

11:55 pm-10:40 am

1 stop8h 45m

Bismarck

Wed 2/11

7:31 am-1:00 pm

1 stop7h 29m

$274

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/1

3:35 pm-11:39 pm

1 stop6h 04m

Bismarck

Sun 10/5

6:00 am-9:59 am

1 stop5h 59m

$289

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

8:42 am-11:39 pm

2 stops12h 57m

Bismarck

Wed 2/11

5:30 am-9:55 am

1 stop6h 25m

$290

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/1

8:42 am-9:52 pm

2 stops11h 10m

Bismarck

Sun 10/5

6:00 am-9:59 am

1 stop5h 59m

$294

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

8:42 am-11:39 pm

2 stops12h 57m

Bismarck

Wed 2/11

8:00 am-6:27 pm

2 stops12h 27m

$308

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

5:00 am-1:00 pm

1 stop6h 00m

Bismarck

Sun 10/12

6:00 am-9:59 am

1 stop5h 59m

$338

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 9/30

6:00 am-4:51 pm

1 stop8h 51m

Bismarck

Sun 10/5

5:32 pm-11:43 pm

1 stop8h 11m

$414

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 10/7

12:34 am-12:57 pm

1 stop10h 23m

Bismarck

Wed 2/11

2:56 pm-9:19 pm

1 stop8h 23m

$440

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 10/16

12:34 am-12:57 pm

1 stop10h 23m

Bismarck

Fri 10/24

2:49 pm-9:48 pm

1 stop8h 59m

$509

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 Bismarck from

How to get the cheapest flight ticket from Seattle to Bismarck

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 Seattle and Bismarck?

What is the cheapest month to fly to Bismarck?

In general, March is the cheapest month to fly from Seattle to Bismarck. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $266. If you aren’t able to travel during the month of March, then book flights to Bismarck from Seattle during January instead. Flights to Bismarck in January, while not as cheap as those in March, still average around $318.

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

The cheapest day to depart from Seattle to Bismarck is on a Wednesday. Travelers who choose to depart for Bismarck on a Wednesday will often find tickets for as low as $548. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $768. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bismarck.

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

According to our data, the cheapest time of day to fly to Bismarck is in the evening. momondo users have found flights departing from Seattle to Bismarck in the evening for as low as $617. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $725. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Seattle to Bismarck

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Bismarck according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Bismarck (SEA to BIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Bismarck

Direct flights

None
There are no direct flights from Seattle to Bismarck. There are no popular flight routes from Seattle to Bismarck.
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  • How far is Seattle/Tacoma Intl to Bismarck by plane?

    A flight from Seattle/Tacoma Intl to Bismarck will travel around 1009.3 mi. Typically, this will take 5h 51m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bismarck Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Bismarck Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bismarck Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bismarck Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bismarck Airport.

  • What documentation or ID do you need to fly to Bismarck Airport?

    The travel and health documents required for your trip to Bismarck Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bismarck Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Seattle to Bismarck?

Best airlines flying from Seattle to Bismarck

Compare and see reviews for airlines that fly from Seattle to Bismarck with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $258Free CancellationRating
7.9
7,964 reviews
Search Delta flights
American AirlinesPriceFrom $328Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Bismarck?

It is quick and easy to find Seattle to Bismarck flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bismarck that suits you.

Can I find flights from Seattle to Bismarck with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bismarck from Seattle with this policy.

How can momondo help me find flights from Seattle to Bismarck?

momondo provides multiple filters to help you find the best flight to Bismarck from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Bismarck right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bismarck from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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