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Cheap flights from Seattle to Bismarck from $303

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bismarck departing on 3/24. 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

Enter your travel dates to find the best prices.
Delta Logo
11:50 am - 8:19 pm
SEA
-
BIS
6h 29m1 stop
Delta Logo
4:50 pm - 8:50 pm
BIS
-
SEA
6h 00m1 stop
$303Delta
Tue, Mar 24 - Mon, Mar 30
United Airlines Logo
5:00 am - 1:03 pm
SEA
-
BIS
6h 03m1 stop
United Airlines Logo
5:05 pm - 11:27 pm
BIS
-
SEA
32h 22m2 stops
$403United Airlines
Tue, Mar 24 - Mon, Mar 30
United Airlines Logo
3:16 pm - 11:43 pm
SEA
-
BIS
6h 27m1 stop
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m1 stop
$429United Airlines
Fri, Feb 27 - Sat, Feb 28
United Airlines Logo
5:20 pm - 1:03 pm
SEA
-
BIS
17h 43m2 stops
United Airlines Logo
5:05 pm - 11:27 pm
BIS
-
SEA
32h 22m2 stops
$476United Airlines
Tue, Mar 24 - Mon, Mar 30
United Airlines Logo
3:30 pm - 11:30 pm
SEA
-
BIS
6h 00m1 stop
United Airlines Logo
1:35 pm - 6:26 pm
BIS
-
SEA
6h 51m1 stop
$482United Airlines
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
3:30 pm - 11:30 pm
SEA
-
BIS
6h 00m1 stop
United Airlines Logo
9:00 am - 9:12 pm
BIS
-
SEA
14h 12m2 stops
$484United Airlines
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
9:25 am - 11:30 pm
SEA
-
BIS
12h 05m2 stops
United Airlines Logo
5:10 pm - 6:26 pm
BIS
-
SEA
27h 16m1 stop
$487United Airlines
Tue, Jan 13 - Fri, Jan 16
United Airlines Logo
9:25 am - 11:30 pm
SEA
-
BIS
12h 05m2 stops
United Airlines Logo
9:00 am - 9:12 pm
BIS
-
SEA
14h 12m2 stops
$489United Airlines
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
12:32 pm - 11:43 pm
SEA
-
BIS
9h 11m2 stops
United Airlines Logo
5:30 am - 9:49 am
BIS
-
SEA
6h 19m1 stop
$504United Airlines
Fri, Feb 27 - Sat, Feb 28
Delta Logo
11:59 pm - 10:48 am
SEA
-
BIS
8h 49m1 stop
Delta Logo
10:00 am - 4:13 pm
BIS
-
SEA
8h 13m1 stop
$509Delta
Mon, May 11 - Sat, May 16

American Airlines flights from Seattle to Bismarck

Our best American Airlines deals on Seattle to Bismarck flight tickets
American Airlines
May 21
SEA12:05 amSeattle/Tacoma Intl
9h 56m
1 stop
BIS12:01 pmBismarck
May 27
BIS2:04 pmBismarck
7h 16m
1 stop
SEA7:20 pmSeattle/Tacoma Intl
$554
Find similar
American Airlines
Jan 13
SEA11:55 amSeattle/Tacoma Intl
8h 32m
1 stop
BIS10:27 pmBismarck
Jan 16
BIS2:58 pmBismarck
10h 53m
1 stop
SEA11:51 pmSeattle/Tacoma Intl
$561
Find similar
American Airlines
Jan 13
SEA10:00 amSeattle/Tacoma Intl
10h 27m
2 stops
BIS10:27 pmBismarck
Jan 16
BIS2:58 pmBismarck
9h 01m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
$566
Find similar

United Airlines flights from Seattle to Bismarck

Our best United Airlines deals on Seattle to Bismarck flight tickets
United Airlines
Mar 24
SEA5:00 amSeattle/Tacoma Intl
6h 03m
1 stop
BIS1:03 pmBismarck
Mar 30
BIS5:05 pmBismarck
32h 22m
2 stops
SEA11:27 pmSeattle/Tacoma Intl
$403
Find similar
United Airlines
Feb 27
SEA3:16 pmSeattle/Tacoma Intl
6h 27m
1 stop
BIS11:43 pmBismarck
Feb 28
BIS5:30 amBismarck
6h 19m
1 stop
SEA9:49 amSeattle/Tacoma Intl
$429
Find similar
United Airlines
Dec 31
SEA3:50 pmSeattle/Tacoma Intl
6h 02m
1 stop
BIS11:52 pmBismarck
Jan 5
BIS5:10 pmBismarck
8h 02m
1 stop
SEA11:12 pmSeattle/Tacoma Intl
$467
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 December 23, 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

Tue 3/24

11:50 am-8:19 pm

1 stop6h 29m

Bismarck

Mon 3/30

4:50 pm-8:50 pm

1 stop6h 00m

$303

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 3/24

5:00 am-1:03 pm

1 stop6h 03m

Bismarck

Mon 3/30

5:05 pm-11:27 pm

2 stops32h 22m

$403

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Fri 2/27

3:16 pm-11:43 pm

1 stop6h 27m

Bismarck

Sat 2/28

5:30 am-9:49 am

1 stop6h 19m

$429

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 3/24

5:20 pm-1:03 pm

2 stops17h 43m

Bismarck

Mon 3/30

5:05 pm-11:27 pm

2 stops32h 22m

$476

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 1/6

3:30 pm-11:30 pm

1 stop6h 00m

Bismarck

Sat 1/10

1:35 pm-6:26 pm

1 stop6h 51m

$482

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 1/6

3:30 pm-11:30 pm

1 stop6h 00m

Bismarck

Sat 1/10

9:00 am-9:12 pm

2 stops14h 12m

$484

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 1/13

9:25 am-11:30 pm

2 stops12h 05m

Bismarck

Fri 1/16

5:10 pm-6:26 pm

1 stop27h 16m

$487

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 1/6

9:25 am-11:30 pm

2 stops12h 05m

Bismarck

Sat 1/10

9:00 am-9:12 pm

2 stops14h 12m

$489

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Fri 2/27

12:32 pm-11:43 pm

2 stops9h 11m

Bismarck

Sat 2/28

5:30 am-9:49 am

1 stop6h 19m

$504

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Mon 5/11

11:59 pm-10:48 am

1 stop8h 49m

Bismarck

Sat 5/16

10:00 am-4:13 pm

1 stop8h 13m

$509

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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

Fastest flight time

6h 00m

Direct flights

None
The fastest flight from Seattle to Bismarck takes 6h 00m
There are no direct flights from Seattle to Bismarck. There are no popular flight routes from Seattle to Bismarck.
Search flight deals

  • 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 6h 00m 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
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $328Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,105 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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