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$369+ Cheap flights from Bismarck to Seattle (BIS - SEA)

BIS — SEA
Dec 9 — Dec 161
Wed 12/9
Wed 12/16
1 adult, Economy
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Cheap flight deals from Bismarck to Seattle

Cheapest flights from Bismarck to Seattle

Sat 12/55:00 am -
1 stop7h 45m
Tue 12/86:00 am -
1 stop8h 59m
Deal found 11/8$369
Sat 12/51:15 pm -
2 stops9h 32m
Sat 12/128:30 am -
1 stop5h 47m
Deal found 11/7$416
Sun 11/225:40 pm -
1 stop8h 17m
Thu 11/266:00 am -
1 stop6h 54m
Deal found 11/6$419
Mon 11/235:50 am -
1 stop5h 57m
Fri 11/279:05 am -
2 stops12h 39m
Deal found 11/8$444
Wed 11/183:13 pm -
1 stop7h 33m
Mon 11/236:00 am -
1 stop6h 32m
Deal found 11/8$464
Thu 12/38:00 am -
1 stop17h 53m
Mon 12/71:45 pm -
1 stop7h 51m
Deal found 11/8$477
Fri 12/42:06 pm -
1 stop10h 32m
Tue 12/811:39 pm -
2 stops11h 57m
Deal found 11/8$482
Mon 12/211:07 pm -
2 stops12h 11m
Tue 1/125:00 am -
1 stop5h 48m
Deal found 11/5$488
Wed 11/183:13 pm -
1 stop7h 33m
Sat 11/216:00 am -
1 stop8h 41m
Deal found 11/8$509
Fri 12/45:41 pm -
1 stop8h 12m
Tue 12/86:00 am -
1 stop6h 49m
Deal found 11/8$513
Thu 11/1910:10 pm -
1 stop16h 27m
Mon 11/239:53 pm -
1 stop21h 02m
Deal found 11/4$526

Find flight deals from Bismarck to Seattle

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$365
(Delta)

Popular in

June

Cheapest in

March

Average price

$608
Provider with most accurate pricing for Bismarck-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Bismarck-Seattle/Tacoma Intl flights.
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From Bismarck to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Bismarck to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Fri 1/1

5:30 am-9:49 am

1 stop6h 19m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$398

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Sat 12/5

1:15 pm-8:47 pm

2 stops9h 32m

Seattle/Tacoma Intl

Sat 12/12

8:30 am-4:17 pm

1 stop5h 47m

$416

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Fri 5/7

5:30 pm-11:59 pm

1 stop8h 29m

Seattle/Tacoma Intl

Sat 5/15

6:05 am-4:54 pm

1 stop8h 49m

$424

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Wed 2/3

5:40 am-9:49 am

1 stop6h 09m

Seattle/Tacoma Intl

Sat 2/6

8:30 am-4:23 pm

1 stop5h 53m

$479

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Sat 12/26

12:54 pm-9:39 pm

1 stop10h 45m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$523

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Thu 11/19

10:10 pm-12:37 pm

1 stop16h 27m

Seattle/Tacoma Intl

Mon 11/23

9:53 pm-8:55 pm

1 stop21h 02m

$526

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Fri 1/22

1:23 pm-8:48 pm

2 stops9h 25m

Seattle/Tacoma Intl

Mon 2/1

9:01 am-11:44 pm

2 stops12h 43m

$590

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Thu 12/3

9:10 am-6:28 pm

2 stops11h 18m

Seattle/Tacoma Intl

Mon 12/7

5:05 am-12:37 pm

1 stop5h 32m

$607

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Fri 12/4

1:15 pm-11:44 pm

2 stops12h 29m

Seattle/Tacoma Intl

Mon 12/7

4:04 pm-11:44 pm

1 stop5h 40m

$612

BismarckSeattle

BIS Bismarck - SEA Seattle/Tacoma Intl

BISSEA

Bismarck

Sat 12/26

12:45 pm-5:10 pm

3 stops54h 25m

Seattle/Tacoma Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 11 resultsSorted by cheapest first
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Compare providers for flights from Bismarck to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bismarck to Seattle in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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 Bismarck-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bismarck-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bismarck-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Bismarck-Seattle 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 Bismarck to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bismarck with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from Bismarck to Seattle (average of $399). Flying from Bismarck to Seattle in June is currently the most expensive (average of $741). 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.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Bismarck to Seattle, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,700 reviews

Crew

8.5

Entertainment

7.8

Overall

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Delta
7.8
Good
8,700 reviews
Delta
7.8
Good
8,700 reviews

Crew

8.5

Entertainment

7.8

Overall

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
United Airlines
7.3
Good
10,476 reviews
Delta
7.8
Good
8,700 reviews

Crew

8.5

Entertainment

7.8

Overall

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.

Related info for your journey

  • How long is the flight from Bismarck to Seattle?

    For as low as $365, Delta can have you in Seattle from Bismarck in 6h. The distance between Bismarck and Seattle 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 Bismarck to Seattle round-trip?

    Delta, at $310, was found to be the cheapest airline from Bismarck to Seattle. An alternate airline flying to your destination would be United Airlines. Delta is 39% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck to Seattle 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 Bismarck to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Bismarck to Seattle (average of $399). Flying from Bismarck to Seattle in June is currently the most expensive (average of $741). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Lacey
Tacoma
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Olympia
Lakewood
Poulsbo
Marysville
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Bismarck to Seattle

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$310Average$498FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$310Average$469FlexibilityNo cancel feeOn-time69%

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