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Bismarck

$275+ Cheap flights from Seattle to Bismarck (SEA - BIS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIS
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Seattle to Bismarck

Best flights from Seattle to Bismarck
Discover carefully curated flight deals from Seattle to Bismarck that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Delta deal was found by Cheapflights users on 12/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 amSEA - BIS
1 stop8h 06mDelta
Mon 3/301:26 pmBIS - SEA
1 stop9h 24mDelta
Deal found 12/23$275
This United Airlines deal was found by Cheapflights users on 12/25. 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.
Wed 4/83:48 pmSEA - BIS
1 stop5h 55mUnited Airlines
Sat 4/116:00 amBIS - SEA
1 stop5h 46mUnited Airlines
Deal found 12/25$295
This American Airlines deal was found by Cheapflights users on 12/23. 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 1/811:55 amSEA - BIS
1 stop8h 32mAmerican Airlines
Mon 1/122:58 pmBIS - SEA
1 stop10h 53mAmerican Airlines
Deal found 12/23$309
This United Airlines deal was found by Cheapflights users on 12/26. 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 1/105:00 amSEA - BIS
1 stop5h 51mUnited Airlines
Wed 1/145:10 pmBIS - SEA
1 stop6h 05mUnited Airlines
Deal found 12/26$309
This United Airlines deal was found by Cheapflights users on 12/23. 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 1/86:03 amSEA - BIS
2 stops12h 35mUnited Airlines
Mon 1/121:35 pmBIS - SEA
2 stops13h 21mUnited Airlines
Deal found 12/23$349
This United Airlines deal was found by Cheapflights users on 12/23. 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 3/245:00 amSEA - BIS
1 stop6h 03mUnited Airlines
Mon 3/305:05 pmBIS - SEA
2 stops32h 22mUnited Airlines
Deal found 12/23$403
This United Airlines deal was found by Cheapflights users on 12/25. 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 2/273:16 pmSEA - BIS
1 stop6h 27mUnited Airlines
Sat 2/285:30 amBIS - SEA
1 stop6h 19mUnited Airlines
Deal found 12/25$404

Find 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 December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$275
(Delta)

Popular in

April

Cheapest in

March

Average price

$538
Provider with most accurate pricing for Seattle/Tacoma Intl-Bismarck flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bismarck flights.
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From Seattle/Tacoma Intl to Bismarck
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 26, 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

Tue 3/24

6:00 am-4:06 pm

1 stop8h 06m

Bismarck

Mon 3/30

1:26 pm-8:50 pm

1 stop9h 24m

$275

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Wed 4/8

3:48 pm-11:43 pm

1 stop5h 55m

Bismarck

Sat 4/11

6:00 am-9:46 am

1 stop5h 46m

$295

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 1/8

11:55 am-10:27 pm

1 stop8h 32m

Bismarck

Mon 1/12

2:58 pm-11:51 pm

1 stop10h 53m

$309

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Sat 1/10

5:00 am-12:51 pm

1 stop5h 51m

Bismarck

Wed 1/14

5:10 pm-9:15 pm

1 stop6h 05m

$309

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

Thu 1/8

6:03 am-8:38 pm

2 stops12h 35m

Bismarck

Mon 1/12

1:35 pm-12:56 am

2 stops13h 21m

$349

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

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Compare providers for flights from Seattle to Bismarck

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Bismarck in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Bismarck flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Bismarck flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Bismarck flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Bismarck flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Bismarck flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 December 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Bismarck in the evening. If you’re flexible enough to do this you can expect to save up to 17% 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 December 26, 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
7.9
Good
8,018 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,018 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,116 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,067 reviews
Delta
7.9
Good
8,018 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 55m. The distance between Seattle and Bismarck is about 1011 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $243 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$426FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$328Average$494FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$358Average$561FlexibilityNo cancel feeOn-time69%

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