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Cheap flights from Seattle to Bismarck from $228

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 8/20. 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 Seattle to Bismarck

Cheap round-trip flights

Delta Logo
11:55 pm - 10:31 amSEA-BIS
8h 36m1 stop
Delta Logo
5:42 pm - 11:54 pmBIS-SEA
8h 12m1 stop
$289Delta
Find Deal
Thu, Aug 14 - Mon, Aug 18
Delta Logo
11:55 pm - 10:39 amSEA-BIS
8h 44m1 stop
Delta Logo
11:20 am - 4:44 pmBIS-SEA
7h 24m1 stop
$301Delta
Find Deal
Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
12:46 am - 12:52 pmSEA-BIS
10h 06m1 stop
American Airlines Logo
2:32 pm - 9:23 pmBIS-SEA
8h 51m1 stop
$320American Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
United Airlines Logo
2:24 pm - 11:38 pmSEA-BIS
7h 14m1 stop
United Airlines Logo
5:20 pm - 9:17 pmBIS-SEA
5h 57m1 stop
$364United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
Delta Logo
9:25 am - 7:37 pmSEA-BIS
8h 12m1 stop
Delta Logo
5:42 pm - 11:57 pmBIS-SEA
8h 15m1 stop
$373Delta
Find Deal
Wed, Oct 15 - Sun, Oct 19
American Airlines Logo
12:34 am - 12:57 pmSEA-BIS
10h 23m1 stop
American Airlines Logo
1:27 pm - 8:46 pmBIS-SEA
9h 19m1 stop
$400American Airlines
Find Deal
Tue, Oct 7 - Mon, Oct 13
United Airlines Logo
3:36 pm - 11:39 pmSEA-BIS
6h 03m1 stop
United Airlines Logo
1:55 pm - 10:59 pmBIS-SEA
11h 04m2 stops
$413United Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
12:46 am - 12:52 pmSEA-BIS
10h 06m1 stop
American Airlines Logo
1:22 pm - 8:02 pmBIS-SEA
8h 40m1 stop
$426American Airlines
Find Deal
Wed, Aug 13 - Mon, Aug 18
United Airlines Logo
3:28 pm - 9:52 pmSEA-BIS
28h 24m2 stops
United Airlines Logo
5:10 pm - 11:29 pmBIS-SEA
8h 19m1 stop
$488United Airlines
Find Deal
Wed, Oct 8 - Mon, Oct 13
Delta Logo
7:25 am - 7:37 pmSEA-BIS
10h 12m2 stops
Delta Logo
7:30 am - 4:30 pmBIS-SEA
11h 00m2 stops
$816Delta
Find Deal
Wed, Oct 8 - Mon, Oct 13

American Airlines flights from Seattle to Bismarck

Our best American Airlines deals on Seattle to Bismarck flight tickets
American Airlines
Sep 1
SEA12:46 amSeattle/Tacoma Intl
10h 06m
1 stop
BIS12:52 pmBismarck
Sep 9
BIS2:32 pmBismarck
8h 51m
1 stop
SEA9:23 pmSeattle/Tacoma Intl
$320
Find similar
American Airlines
Oct 7
SEA12:34 amSeattle/Tacoma Intl
10h 23m
1 stop
BIS12:57 pmBismarck
Oct 13
BIS1:27 pmBismarck
9h 19m
1 stop
SEA8:46 pmSeattle/Tacoma Intl
$400
Find similar
American Airlines
Aug 13
SEA12:46 amSeattle/Tacoma Intl
10h 06m
1 stop
BIS12:52 pmBismarck
Aug 18
BIS1:22 pmBismarck
8h 40m
1 stop
SEA8:02 pmSeattle/Tacoma Intl
$426
Find similar

Delta flights from Seattle to Bismarck

Our best Delta deals on Seattle to Bismarck flight tickets
Delta
Aug 14
SEA11:55 pmSeattle/Tacoma Intl
8h 36m
1 stop
BIS10:31 amBismarck
Aug 18
BIS5:42 pmBismarck
8h 12m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
$289
Find similar
Delta
Sep 2
SEA11:55 pmSeattle/Tacoma Intl
8h 44m
1 stop
BIS10:39 amBismarck
Sep 9
BIS11:20 amBismarck
7h 24m
1 stop
SEA4:44 pmSeattle/Tacoma Intl
$301
Find similar
Delta
Oct 15
SEA9:25 amSeattle/Tacoma Intl
8h 12m
1 stop
BIS7:37 pmBismarck
Oct 19
BIS5:42 pmBismarck
8h 15m
1 stop
SEA11:57 pmSeattle/Tacoma Intl
$373
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 August 2, 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

Thu 8/14

11:55 pm-10:31 am

1 stop8h 36m

Bismarck

Mon 8/18

5:42 pm-11:54 pm

1 stop8h 12m

$289

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 9/2

11:55 pm-10:39 am

1 stop8h 44m

Bismarck

Tue 9/9

11:20 am-4:44 pm

1 stop7h 24m

$301

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Mon 9/1

12:46 am-12:52 pm

1 stop10h 06m

Bismarck

Tue 9/9

2:32 pm-9:23 pm

1 stop8h 51m

$320

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Fri 8/15

2:24 pm-11:38 pm

1 stop7h 14m

Bismarck

Tue 8/19

5:20 pm-9:17 pm

1 stop5h 57m

$364

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/15

9:25 am-7:37 pm

1 stop8h 12m

Bismarck

Sun 10/19

5:42 pm-11:57 pm

1 stop8h 15m

$373

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 10/7

12:34 am-12:57 pm

1 stop10h 23m

Bismarck

Mon 10/13

1:27 pm-8:46 pm

1 stop9h 19m

$400

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 9/2

3:36 pm-11:39 pm

1 stop6h 03m

Bismarck

Tue 9/9

1:55 pm-10:59 pm

2 stops11h 04m

$413

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 8/13

12:46 am-12:52 pm

1 stop10h 06m

Bismarck

Mon 8/18

1:22 pm-8:02 pm

1 stop8h 40m

$426

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

3:28 pm-9:52 pm

2 stops28h 24m

Bismarck

Mon 10/13

5:10 pm-11:29 pm

1 stop8h 19m

$488

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 10/8

7:25 am-7:37 pm

2 stops10h 12m

Bismarck

Mon 10/13

7:30 am-4:30 pm

2 stops11h 00m

$816

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 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

Best Price Found

$228

Fastest flight time

5h 51m

Direct flights

None

Airports in Bismarck

1 airport
The best one-way flight to Bismarck from Seattle in the past 72 hours is $228. The best round-trip flight deal from Seattle to Bismarck found on momondo in the last 72 hours is $289.
The fastest flight from Seattle to Bismarck takes 5h 51m
There are no direct flights from Seattle to Bismarck. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Bismarck Airport.
There is 1 airport near Bismarck: Bismarck (BIS)
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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
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $328Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
8,904 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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