$178+ Cheap flights from Bismarck to Seattle (BIS - SEA)
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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — SEA
Jul 20 — Jul 271
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Bismarck to SeattleExplore the most affordable flight options available from Bismarck to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
Explore the most affordable flight options available from Bismarck to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 20, 2026.
This Delta deal was found by Cheapflights users on 6/19. 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.
Sat 10/2412:35 pm
BIS
- SEA
1 stop6h 00m
Delta
Tue 10/276:05 am
SEA
- BIS
1 stop8h 49m
Delta
Deal found 6/19![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 9/55:36 pm
BIS
- SEA
1 stop6h 24m
Delta
Fri 9/112:30 pm
SEA
- BIS
1 stop6h 41m
Delta
Deal found 6/16![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 6/16. 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.
Thu 10/295:30 pm
BIS
- SEA
1 stop8h 29m
Delta
Sun 11/16:05 am
SEA
- BIS
1 stop8h 49m
Delta
Deal found 6/16![Delta logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:14 pm
BIS
- SEA
1 stop14h 46m
Multiple Airlines
Wed 10/2811:06 am
SEA
- BIS
2 stops32h 40m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:41 pm
BIS
- SEA
1 stop13h 19m
Multiple Airlines
Thu 10/87:41 pm
SEA
- BIS
2 stops23h 13m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 6/19. 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.
Sun 9/65:00 am
BIS
- SEA
1 stop5h 48m
Delta
Sat 9/1211:59 pm
SEA
- BIS
1 stop8h 49m
Delta
Deal found 6/19![Delta logo]()
$367
This American Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 9/51:55 pm
BIS
- SEA
1 stop10h 24m
American Airlines
Fri 9/1110:17 am
SEA
- BIS
1 stop10h 35m
American Airlines
Deal found 6/19![American Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 6/19. 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.
Sat 10/247:31 am
BIS
- SEA
2 stops13h 24m
Delta
Wed 10/286:05 am
SEA
- BIS
1 stop6h 20m
Delta
Deal found 6/19![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 6/15. 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 11/145:07 pm
BIS
- SEA
1 stop7h 52m
United Airlines
Tue 11/173:51 pm
SEA
- BIS
1 stop5h 46m
United Airlines
Deal found 6/15![United Airlines logo]()
$401
Best flights from Bismarck to SeattleDiscover carefully curated flight deals from Bismarck to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
Discover carefully curated flight deals from Bismarck to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 20, 2026.
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 9/55:36 pm
BIS
- SEA
1 stop6h 24m
Delta
Fri 9/112:30 pm
SEA
- BIS
1 stop6h 41m
Delta
Deal found 6/16![Delta logo]()
$315
This United Airlines deal was found by Cheapflights users on 6/18. 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 9/55:15 pm
BIS
- SEA
2 stops30h 26m
United Airlines
Fri 9/113:54 pm
SEA
- BIS
1 stop5h 44m
United Airlines
Deal found 6/18![United Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 6/19. 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.
Sat 9/55:36 pm
BIS
- SEA
1 stop6h 24m
Delta
Sat 9/1211:59 pm
SEA
- BIS
1 stop8h 49m
Delta
Deal found 6/19![Delta logo]()
$421
This Delta deal was found by Cheapflights users on 6/20. 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.
Sun 9/65:00 am
BIS
- SEA
1 stop5h 48m
Delta
Sat 9/1211:59 pm
SEA
- BIS
1 stop8h 33m
Delta
Deal found 6/20![Delta logo]()
$425
Last-minute flights from Bismarck to SeattleDiscover last-minute flight deals from Bismarck to Seattle. Data last updated June 20, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Seattle. Data last updated June 20, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Sat 7/258:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Tue 7/2810:34 am
SEA
- BIS
2 stops46h 42m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Sun 7/268:53 pm
SEA
- BIS
2 stops22h 21m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:04 pm
BIS
- SEA
2 stops21h 47m
Multiple Airlines
Wed 7/298:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:04 pm
BIS
- SEA
2 stops21h 47m
Multiple Airlines
Sat 8/18:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$558
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2612:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Wed 7/2911:54 am
SEA
- BIS
2 stops21h 22m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2612:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Sat 8/18:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$556
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:04 pm
BIS
- SEA
2 stops38h 35m
Multiple Airlines
Sat 8/18:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Sun 8/27:06 pm
SEA
- BIS
2 stops24h 08m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$604
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Sat 8/18:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$621
One-way flights from Bismarck to SeattleSearch for one-way flight options from Bismarck to Seattle. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
Search for one-way flight options from Bismarck to Seattle. Find affordable one-way fares based on user searches. Data last updated June 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:18 pm
BIS
- SEA
2 stops38h 21m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2612:06 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:06 pm
BIS
- SEA
1 stop24h 29m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 7/276:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/19![United Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2812:02 pm
BIS
- SEA
1 stop24h 33m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 6/17. 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.
Wed 7/15:42 pm
BIS
- SEA
1 stop8h 17m
Delta
Deal found 6/17![Delta logo]()
$379
This American Airlines deal was found by Cheapflights users on 6/17. 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.
Tue 6/306:00 am
BIS
- SEA
1 stop10h 53m
American Airlines
Deal found 6/17![American Airlines logo]()
$382
Find flight deals from Bismarck to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to Seattle (SEA). 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 June 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $315 (Delta) |
One-way from | $178 (Kiwi.com) |
Popular in | June |
Cheapest in | July |
Average price | $660 |
Cheapflights Fare Finder
Customize your flight search to find flights from Bismarck to Seattle 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 June 20, 2026.
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
Cheapest round-trip
Quickest round-trip
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sat 9/5
5:36 pm-10:00 pm
1 stop6h 24m
Seattle/Tacoma Intl
Fri 9/11
2:30 pm-11:11 pm
1 stop6h 41m
$315
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sat 9/5
5:36 pm-10:00 pm
1 stop6h 24m
Seattle/Tacoma Intl
Sat 9/12
11:59 pm-10:48 am
1 stop8h 49m
$421
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sun 9/6
5:00 am-8:48 am
1 stop5h 48m
Seattle/Tacoma Intl
Sat 9/12
11:59 pm-10:32 am
1 stop8h 33m
$425
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sat 9/5
5:15 pm-9:41 pm
2 stops30h 26m
Seattle/Tacoma Intl
Fri 9/11
3:54 pm-11:38 pm
1 stop5h 44m
$527
Cheapest one-way
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Mon 8/17
10:18 pm-10:39 am
2 stops38h 21m
$178
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sun 7/26
12:06 pm-10:39 am
1 stop24h 33m
$266
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Mon 8/17
1:55 pm-10:26 pm
1 stop10h 31m
$304
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sat 7/4
5:42 pm-11:59 pm
1 stop8h 17m
$379
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Fri 7/3
9:16 am-4:00 pm
1 stop8h 44m
$379
Quickest one-way
BismarckSeattle
BIS - SEA
BISSEA
Bismarck
Sat 7/25
6:05 am-9:50 am
1 stop5h 45m
$429
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Bismarck to Seattle
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 Bismarck to Seattle in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BIS-SEA
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 Bismarck to Seattle
What is the cheapest month to book a flight from Bismarck to Seattle?
Currently, July is the cheapest month in which you can book a flight from Bismarck to Seattle (average of $264). 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.
How much does it cost to fly round-trip from Bismarck to Seattle?
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated June 20, 2026.
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.
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Crew
8.5
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
8.0
ExcellentRakshith,May 2026
TPE - SEA
Related info for your journey
Find useful and relevant information for your journey from Bismarck to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
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Issaquah
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Bismarck and Seattle flights
Browse other Bismarck and Seattle flight options. Last updated on June 20, 2026.
Other flights from Bismarck
Browse through other flights departing from Bismarck. Flights are based on user searches made on Cheapflights and were last updated on June 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 20, 2026.
Top 2 airlines flying from Bismarck to Seattle
Discover the top 2 airlines that operate flights from Bismarck to Seattle. 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 June 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$258 | Average$339 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$468 | FlexibilityNo cancel fee | On-time69% |