$305+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIS
Jul 26 — Aug 21
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bismarck with Cheapflights
1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Bismarck
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Best
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Cheapest flights from Seattle to BismarckExplore 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 June 26, 2026.
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 June 26, 2026.
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 8/213:54 pm
SEA
- BIS
1 stop5h 44m
United Airlines
Wed 8/266:35 pm
BIS
- SEA
1 stop6h 29m
United Airlines
Deal found 6/23![United Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:05 am
SEA
- BIS
1 stop8h 51m
Delta
Sun 9/65:00 am
BIS
- SEA
1 stop5h 48m
Delta
Deal found 6/25![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/303:55 pm
SEA
- BIS
1 stop5h 48m
United Airlines
Sat 10/36:00 am
BIS
- SEA
1 stop6h 01m
United Airlines
Deal found 6/25![United Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 6/24. 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 9/2412:05 pm
SEA
- BIS
1 stop8h 47m
American Airlines
Sun 9/271:57 pm
BIS
- SEA
1 stop9h 55m
American Airlines
Deal found 6/24![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/162:33 pm
SEA
- BIS
1 stop6h 38m
United Airlines
Mon 7/206:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 6/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:15 am
SEA
- BIS
1 stop10h 29m
American Airlines
Sun 9/61:55 pm
BIS
- SEA
1 stop10h 22m
American Airlines
Deal found 6/25![American Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 6/21. 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 6/2211:02 am
SEA
- BIS
1 stop7h 26m
United Airlines
Mon 6/299:16 am
BIS
- SEA
1 stop8h 44m
United Airlines
Deal found 6/21![United Airlines logo]()
$527
Best flights from Seattle to BismarckDiscover 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 June 26, 2026.
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 June 26, 2026.
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 8/213:54 pm
SEA
- BIS
1 stop5h 44m
United Airlines
Wed 8/266:35 pm
BIS
- SEA
1 stop6h 29m
United Airlines
Deal found 6/23![United Airlines logo]()
$315
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/162:33 pm
SEA
- BIS
1 stop6h 38m
United Airlines
Mon 7/206:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/97:00 am
SEA
- BIS
2 stops11h 28m
United Airlines
Mon 7/136:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/46:10 pm
SEA
- BIS
1 stop24h 23m
United Airlines
Sun 9/69:00 am
BIS
- SEA
2 stops11h 32m
United Airlines
Deal found 6/25![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 7/117:00 am
SEA
- BIS
2 stops11h 28m
United Airlines
Wed 7/156:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/25![United Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 7/118:45 am
SEA
- BIS
2 stops9h 43m
United Airlines
Sun 7/196:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/25![United Airlines logo]()
$759
Last-minute flights from Seattle to BismarckDiscover last-minute flight deals from Seattle to Bismarck. Data last updated June 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bismarck. Data last updated June 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/24. 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 6/262:03 pm
SEA
- BIS
1 stop7h 54m
American Airlines
Sun 6/282:00 pm
BIS
- SEA
1 stop10h 34m
American Airlines
Deal found 6/24![American Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 6/21. 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 6/263:40 pm
SEA
- BIS
1 stop6h 01m
United Airlines
Sun 6/289:16 am
BIS
- SEA
1 stop8h 44m
United Airlines
Deal found 6/21![United Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/92:33 pm
SEA
- BIS
1 stop6h 38m
United Airlines
Mon 7/136:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$542
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 7/115:00 am
SEA
- BIS
1 stop5h 59m
United Airlines
Wed 7/156:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/25![United Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/162:33 pm
SEA
- BIS
1 stop6h 38m
United Airlines
Mon 7/206:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/24![United Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 6/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:56 pm
SEA
- BIS
2 stops11h 29m
American Airlines
Wed 7/2912:46 pm
BIS
- SEA
1 stop9h 51m
American Airlines
Deal found 6/26![American Airlines logo]()
$670
This United Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 7/225:00 am
SEA
- BIS
1 stop5h 56m
United Airlines
Wed 7/296:25 pm
BIS
- SEA
1 stop6h 45m
United Airlines
Deal found 6/26![United Airlines logo]()
$687
One-way flights from Seattle to BismarckSearch for one-way flight options from Seattle to Bismarck. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
Search for one-way flight options from Seattle to Bismarck. Find affordable one-way fares based on user searches. Data last updated June 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Wed 7/18:12 pm
SEA
- BIS
1 stop13h 04m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Sat 8/87:06 pm
SEA
- BIS
3 stops48h 22m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:13 pm
SEA
- BIS
1 stop13h 03m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/15:00 am
SEA
- BIS
1 stop5h 59m
United Airlines
Deal found 6/24![United Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 7/2111:00 pm
SEA
- BIS
3 stops34h 16m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sun 7/123:41 pm
SEA
- BIS
1 stop5h 30m
United Airlines
Deal found 6/23![United Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/2111:56 pm
SEA
- BIS
2 stops11h 29m
American Airlines
Deal found 6/22![American Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 6/22. 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.
Mon 7/2711:56 pm
SEA
- BIS
1 stop10h 20m
American Airlines
Deal found 6/22![American Airlines logo]()
$470
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 June 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $315 (United Airlines) |
One-way from | $305 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $629 |
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 June 26, 2026.
Use the filters below to find and compare flights from Seattle to Bismarck that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Fri 8/21
3:54 pm-11:38 pm
1 stop5h 44m
Bismarck
Wed 8/26
6:35 pm-11:04 pm
1 stop6h 29m
$315
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Thu 7/16
2:33 pm-11:11 pm
1 stop6h 38m
Bismarck
Mon 7/20
6:25 pm-11:10 pm
1 stop6h 45m
$501
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Thu 7/9
7:00 am-8:28 pm
2 stops11h 28m
Bismarck
Mon 7/13
6:25 pm-11:10 pm
1 stop6h 45m
$572
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Fri 9/4
6:10 pm-8:33 pm
1 stop24h 23m
Bismarck
Sun 9/6
9:00 am-6:32 pm
2 stops11h 32m
$572
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Sat 7/11
7:00 am-8:28 pm
2 stops11h 28m
Bismarck
Wed 7/15
6:25 pm-11:10 pm
1 stop6h 45m
$709
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Sat 7/11
8:45 am-8:28 pm
2 stops9h 43m
Bismarck
Sun 7/19
6:25 pm-11:10 pm
1 stop6h 45m
$759
Cheapest one-way
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Wed 7/1
8:12 pm-11:16 am
1 stop13h 04m
$305
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Sat 8/8
8:13 pm-11:44 am
1 stop13h 31m
$347
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Sat 8/1
8:13 pm-11:16 am
1 stop13h 03m
$347
SeattleBismarck
SEA - BIS
SEABIS
Seattle/Tacoma Intl
Sat 8/1
5:00 am-12:59 pm
1 stop5h 59m
$379
Showing 1-10 of 15 resultsSorted by cheapest first
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 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 Seattle-Bismarck flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Bismarck flight deals on Cheapflights vs. FlightHub >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 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 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.
SEA-BIS
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
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 June 26, 2026.
Get a feel of what it's like to fly with Delta and United 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.
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Bismarck flight routes
Complete your trip
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Alternative routes for Seattle to Bismarck
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Other flights to Bismarck
Explore flights to Bismarck departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 26, 2026.
Complete your trip
Complete your trip to Bismarck by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Bismarck by cabin class
Find flights from Seattle to Bismarck, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Bismarck flights
Browse other Seattle and Bismarck flight options. Last updated on June 26, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Bismarck
Discover the top 2 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 June 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$447 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$343 | Average$480 | FlexibilityNo cancel fee | On-timeN/A |