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Bismarck

$271+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIS
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$271
(American Airlines)

Popular in

April

Cheapest in

March

Average price

$484
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
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One-way flight from Seattle/Tacoma Intl to Bismarck
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/113:48 pmSEA - BIS
1 stop5h 51mUnited Airlines
sáb. 11/151:56 pmBIS - SEA
1 stop6h 05mUnited Airlines
Deal found 10/27$289
This Delta deal was found by Cheapflights users on 10/28. 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.
mié. 11/511:55 pmSEA - BIS
1 stop8h 45mDelta
mié. 11/125:35 pmBIS - SEA
1 stop8h 26mDelta
Deal found 10/28$326
This Delta deal was found by Cheapflights users on 10/27. 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.
dom. 11/211:55 pmSEA - BIS
1 stop8h 45mDelta
jue. 11/201:20 pmBIS - SEA
1 stop9h 16mDelta
Deal found 10/27$329
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mié. 11/55:00 amSEA - BIS
1 stop6h 11mUnited Airlines
mié. 11/125:45 amBIS - SEA
2 stops9h 53mUnited Airlines
Deal found 10/28$331
This United Airlines deal was found by Cheapflights users on 10/27. 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.
dom. 11/25:30 amSEA - BIS
2 stops8h 56mUnited Airlines
jue. 11/205:45 amBIS - SEA
1 stop6h 50mUnited Airlines
Deal found 10/27$334
This American Airlines deal was found by Cheapflights users on 10/27. 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.
lun. 10/2712:34 amSEA - BIS
1 stop10h 23mAmerican Airlines
mar. 11/43:02 pmBIS - SEA
1 stop8h 14mAmerican Airlines
Deal found 10/27$363
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 10/285:05 amSEA - BIS
1 stop6h 06mUnited Airlines
mar. 11/45:15 pmBIS - SEA
2 stops9h 44mUnited Airlines
Deal found 10/27$368

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 octubre 28, 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

mar. 11/11

3:48 pm-11:39 pm

1 stop5h 51m

Bismarck

sáb. 11/15

1:56 pm-6:01 pm

1 stop6h 05m

$289

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

mié. 4/1

11:59 pm-10:56 am

1 stop8h 57m

Bismarck

dom. 4/5

7:31 am-12:25 pm

1 stop6h 54m

$299

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

dom. 3/1

6:05 am-4:53 pm

1 stop8h 48m

Bismarck

sáb. 3/7

1:10 pm-8:32 pm

1 stop9h 22m

$519

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

jue. 2/12

5:00 am-12:56 pm

1 stop5h 56m

Bismarck

vie. 2/13

6:25 pm-10:59 pm

1 stop6h 34m

$541

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

jue. 4/9

12:00 pm-8:07 pm

1 stop6h 07m

$271

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

vie. 4/10

12:59 pm-11:37 pm

2 stops8h 38m

$300

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

jue. 4/9

2:47 pm-8:03 pm

2 stops27h 16m

$333

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

jue. 4/9

1:33 am-12:37 pm

1 stop9h 04m

$443

SeattleBismarck

SEA - BIS

SEABIS

Seattle/Tacoma Intl

jue. 4/9

6:00 am-8:30 pm

3 stops36h 30m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*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 month to book a flight from Seattle to Bismarck?

Currently, June is the cheapest month in which you can book a flight from Seattle to Bismarck (average of $207). Flying from Seattle to Bismarck in April is currently the most expensive (average of $486). 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 octubre 28, 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 octubre 28, 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
7,994 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 51m. 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 $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 45% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Bismarck one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $271. United Airlines flights start at $300 while deals on American Airlines start at $443 one-way.

  • 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, June is the cheapest month in which you can book a flight from Seattle to Bismarck (average of $207). Flying from Seattle to Bismarck in April is currently the most expensive (average of $486). 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

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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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$404FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$328Average$494FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$358Average$569FlexibilityNo cancel feeOn-time69%

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