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Bismarck

$197+ Cheap flights from Seattle to Bismarck (SEA - BIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIS
Oct 13 — Oct 201
Mon 10/13
Mon 10/20
1 adult, Economy
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Cheap flight deals from Seattle to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bismarck (BIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 13, 2025.

Round-trip from

$289
(United Airlines)

One-way from

$197
(Kiwi.com)

Popular in

April

Cheapest in

March

Average price

$515
From Seattle/Tacoma Intl to Bismarck
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One-way flight from Seattle/Tacoma Intl to Bismarck
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Seattle to Bismarck

Cheapest flights from Seattle to Bismarck
Explore the most affordable flight options available from Seattle to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:44 amSEA - BIS
1 stop8h 34mAmerican Airlines
Mon 9/291:48 pmBIS - SEA
1 stop8h 21mAmerican Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:43 pmSEA - BIS
1 stop7h 09mUnited Airlines
Mon 9/296:00 amBIS - SEA
2 stops12h 20mUnited Airlines
Deal found 9/10$294
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/278:47 amSEA - BIS
2 stops11h 05mUnited Airlines
Wed 10/16:00 amBIS - SEA
2 stops10h 24mUnited Airlines
Deal found 9/12$299
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:00 amSEA - BIS
1 stop5h 54mUnited Airlines
Sat 10/256:00 amBIS - SEA
1 stop5h 59mUnited Airlines
Deal found 9/9$327
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1011:44 amSEA - BIS
1 stop8h 59mAmerican Airlines
Fri 10/172:49 pmBIS - SEA
1 stop10h 10mAmerican Airlines
Deal found 9/10$377
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:09 amSEA - BIS
1 stop10h 17mAmerican Airlines
Sun 9/142:31 pmBIS - SEA
1 stop10h 28mAmerican Airlines
Deal found 9/11$389
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:35 pmSEA - BIS
1 stop6h 04mUnited Airlines
Mon 10/205:10 pmBIS - SEA
1 stop8h 19mUnited Airlines
Deal found 9/12$422
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:34 amSEA - BIS
1 stop10h 23mAmerican Airlines
Mon 10/206:23 amBIS - SEA
1 stop8h 22mAmerican Airlines
Deal found 9/12$427
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:28 pmSEA - BIS
2 stops23h 01mUnited Airlines
Sun 10/55:10 pmBIS - SEA
1 stop6h 24mUnited Airlines
Deal found 9/10$449

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 13, 2025.
Use the filters below to find and compare flights from Seattle to Bismarck that are best for you.

Fly from

Seattle

Fly to

Bismarck

Route

Depart

Return

Price

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Sat 9/27

8:30 am-4:29 pm

1 stop5h 59m

Bismarck

Wed 10/1

6:00 am-9:59 am

1 stop5h 59m

$289

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 9/25

12:43 pm-9:52 pm

1 stop7h 09m

Bismarck

Mon 9/29

6:00 am-4:20 pm

2 stops12h 20m

$294

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Sat 10/18

5:00 am-12:54 pm

1 stop5h 54m

Bismarck

Sat 10/25

6:00 am-9:59 am

1 stop5h 59m

$327

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Fri 10/10

11:44 am-10:43 pm

1 stop8h 59m

Bismarck

Fri 10/17

2:49 pm-10:59 pm

1 stop10h 10m

$377

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

$389

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 10/16

12:34 am-12:57 pm

1 stop10h 23m

Bismarck

Mon 10/20

6:23 am-12:45 pm

1 stop8h 22m

$427

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Fri 10/17

3:28 pm-12:54 pm

2 stops19h 26m

Bismarck

Mon 10/20

5:10 pm-11:29 pm

1 stop8h 19m

$446

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 9/30

3:28 pm-4:29 pm

2 stops23h 01m

Bismarck

Sun 10/5

5:10 pm-9:34 pm

1 stop6h 24m

$449

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Tue 10/7

1:02 pm-10:43 am

2 stops43h 41m

$197

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Sat 10/11

12:34 am-12:57 pm

1 stop10h 23m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 14 results
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Best time to book a flight from Seattle to Bismarck

Have a flexible travel schedule? Discover the best time to fly to Bismarck from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Bismarck

What is the cheapest month to book a flight from Seattle to Bismarck?

Currently, August is the cheapest month in which you can book a flight from Seattle to Bismarck (average of $346). Flying from Seattle to Bismarck in June is currently the most expensive (average of $426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BIS?

Find hourly flight availability from Seattle to Bismarck. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Bismarck in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Bismarck

Get insights into the airlines that provide service to Bismarck. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bismarck. Reviews last updated September 13, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Seattle to Bismarck by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,936 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Seattle to Bismarck. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Bismarck?

    Departing from Seattle to Bismarck will take you 5h 59m. The distance between Seattle and Bismarck is about 1011 mi.

  • What are the cheapest airlines flying from Seattle to Bismarck round-trip?

    Our cheapest airline available from Seattle to Bismarck is Delta. Our recent data shows that you can find tickets from as low as $258 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $328 and $358 round-trip. Delta is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Bismarck that include hotel bookings?

    Yes. In addition to deals on Seattle to Bismarck flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Bismarck?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Bismarck.

  • Can I find deals for business class flights from Seattle to Bismarck?

    Yes. Cheapflights offers flight deals from Seattle to Bismarck by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Bismarck?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Bismarck (average of $346). Flying from Seattle to Bismarck in June is currently the most expensive (average of $426). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Seattle to Bismarck

Discover the top 3 airlines that operate flights from Seattle to Bismarck. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$436FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$328Average$598FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$358Average$601FlexibilityNo cancel feeOn-time69%

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