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Cheap flights from Seattle to Bismarck from $254

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 9/4. 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 Seattle to Bismarck

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:00 pm - 10:40 am
SEA
-
BIS
16h 40m
2 stops
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
$462Delta
Tue, Jul 14 - Wed, Jul 22
Multiple Airlines Logo
8:13 pm - 11:16 am
SEA
-
BIS
13h 03m
1 stop
Multiple Airlines Logo
12:06 pm - 10:39 am
BIS
-
SEA
24h 33m
1 stop
$476Multiple Airlines
Wed, Jul 15 - Sun, Jul 19
Multiple Airlines Logo
11:54 am - 11:16 am
SEA
-
BIS
21h 22m
2 stops
Multiple Airlines Logo
12:06 pm - 10:39 am
BIS
-
SEA
24h 33m
1 stop
$505Multiple Airlines
Wed, Jul 15 - Sun, Jul 19
Delta Logo
7:30 am - 11:11 pm
SEA
-
BIS
13h 41m
2 stops
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
$522Delta
Thu, Jul 16 - Wed, Jul 22
Delta Logo
11:59 pm - 12:47 pm
SEA
-
BIS
10h 48m
1 stop
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
$572Delta
Tue, Jul 14 - Wed, Jul 22
United Airlines Logo
3:40 pm - 11:11 pm
SEA
-
BIS
5h 31m
1 stop
United Airlines Logo
6:25 pm - 11:10 pm
BIS
-
SEA
6h 45m
1 stop
$574United Airlines
Wed, Aug 5 - Mon, Aug 10
United Airlines Logo
3:40 pm - 11:11 pm
SEA
-
BIS
5h 31m
1 stop
United Airlines Logo
6:25 pm - 11:10 pm
BIS
-
SEA
6h 45m
1 stop
$575United Airlines
Wed, Aug 5 - Mon, Aug 10
Delta Logo
10:35 am - 10:40 am
SEA
-
BIS
22h 05m
2 stops
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
$586Delta
Wed, Jul 15 - Wed, Jul 22
Delta Logo
11:59 pm - 7:46 pm
SEA
-
BIS
17h 47m
1 stop
Delta Logo
5:40 pm - 11:58 pm
BIS
-
SEA
8h 18m
1 stop
$597Delta
Thu, Jul 16 - Wed, Jul 22
United Airlines Logo
5:15 am - 8:28 pm
SEA
-
BIS
13h 13m
2 stops
United Airlines Logo
6:25 pm - 11:10 pm
BIS
-
SEA
6h 45m
1 stop
$607United Airlines
Wed, Aug 5 - Mon, Aug 10

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United Airlines flights from Seattle to Bismarck

Our best United Airlines deals on Seattle to Bismarck flight tickets
United Airlines
Aug 5
SEA3:40 pmSeattle/Tacoma Intl
5h 31m
1 stop
BIS11:11 pmBismarck
Aug 10
BIS6:25 pmBismarck
6h 45m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$574
United Airlines
Aug 5
SEA3:40 pmSeattle/Tacoma Intl
5h 31m
1 stop
BIS11:11 pmBismarck
Aug 10
BIS6:25 pmBismarck
6h 45m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$575
United Airlines
Aug 5
SEA5:15 amSeattle/Tacoma Intl
13h 13m
2 stops
BIS8:28 pmBismarck
Aug 10
BIS6:25 pmBismarck
6h 45m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$607

American Airlines flights from Seattle to Bismarck

Our best American Airlines deals on Seattle to Bismarck flight tickets
American Airlines
Jul 14
SEA7:00 amSeattle/Tacoma Intl
13h 59m
2 stops
BIS10:59 pmBismarck
Jul 21
BIS12:46 pmBismarck
9h 51m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
$620
American Airlines
Jul 16
SEA1:57 pmSeattle/Tacoma Intl
7h 59m
1 stop
BIS11:56 pmBismarck
Jul 21
BIS12:46 pmBismarck
9h 51m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
$639
American Airlines
Jul 14
SEA11:56 pmSeattle/Tacoma Intl
10h 20m
1 stop
BIS12:16 pmBismarck
Jul 21
BIS12:46 pmBismarck
9h 51m
1 stop
SEA8:37 pmSeattle/Tacoma Intl
$661

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 June 22, 2026.
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

Cheapest round-trip

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 7/14

4:00 pm-10:40 am

2 stops16h 40m

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

$462

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 7/15

8:13 pm-11:16 am

1 stop13h 03m

Bismarck

Sun 7/19

12:06 pm-10:39 am

1 stop24h 33m

$476

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 7/15

11:54 am-11:16 am

2 stops21h 22m

Bismarck

Sun 7/19

12:06 pm-10:39 am

1 stop24h 33m

$505

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 7/16

7:30 am-11:11 pm

2 stops13h 41m

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

$522

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 7/14

11:59 pm-12:47 pm

1 stop10h 48m

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

$572
Quickest round-trip

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 8/5

3:40 pm-11:11 pm

1 stop5h 31m

Bismarck

Mon 8/10

6:25 pm-11:10 pm

1 stop6h 45m

$574

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 8/5

3:40 pm-11:11 pm

1 stop5h 31m

Bismarck

Mon 8/10

6:25 pm-11:10 pm

1 stop6h 45m

$575

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 7/15

10:35 am-10:40 am

2 stops22h 05m

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

$586

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 7/16

11:59 pm-7:46 pm

1 stop17h 47m

Bismarck

Wed 7/22

5:40 pm-11:58 pm

1 stop8h 18m

$597

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 8/5

5:15 am-8:28 pm

2 stops13h 13m

Bismarck

Mon 8/10

6:25 pm-11:10 pm

1 stop6h 45m

$607

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, December 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 $0. If you aren’t able to travel during the month of December, then book flights to Bismarck from Seattle during November instead. Flights to Bismarck in November, while not as cheap as those in December, still average around $0.

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

5h 31m

Direct flights

None
The fastest flight from Seattle to Bismarck takes 5h 31m
There are no direct flights from Seattle to Bismarck. There are no popular flight routes from Seattle to Bismarck.
Search flight deals

Frequently asked questions about flying from Seattle to Bismarck

  • 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 31m 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
United AirlinesPriceFrom $294Free CancellationRating
7.4
9,875 reviews
Search United Airlines flights
DeltaPriceFrom $343Free CancellationRating
7.8
8,421 reviews
Search Delta 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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