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$185+ Cheap flights from Bismarck (BIS) to Washington

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — SEA
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Bismarck to Washington

Cheapest flights from Bismarck to Washington
Explore the most affordable flight options available from Bismarck to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This Delta deal was found by Cheapflights users on 7/20. 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.
Tue 9/225:40 pm
BIS
-
SEA
1 stop8h 15m
Delta
Sat 9/2611:59 pm
SEA
-
BIS
1 stop8h 33m
Delta
Deal found 7/20$311
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/176:00 am
BIS
-
PDX
1 stop5h 32m
United Airlines
Wed 8/265:00 am
PDX
-
BIS
1 stop5h 56m
United Airlines
Deal found 7/21$315
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am
BIS
-
SEA
1 stop6h 01m
United Airlines
Sat 9/2610:55 am
SEA
-
BIS
2 stops10h 48m
United Airlines
Deal found 7/20$316
This Delta deal was found by Cheapflights users on 7/20. 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.
Thu 8/205:36 pm
BIS
-
PDX
1 stop7h 44m
Delta
Sun 8/2312:35 am
PDX
-
BIS
1 stop7h 55m
Delta
Deal found 7/20$319
This Delta deal was found by Cheapflights users on 7/23. 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.
Thu 9/105:40 pm
BIS
-
GEG
1 stop7h 16m
Delta
Sat 9/126:45 am
GEG
-
BIS
1 stop8h 15m
Delta
Deal found 7/23$319
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/176:00 am
BIS
-
PDX
1 stop5h 32m
United Airlines
Tue 8/259:00 am
PDX
-
BIS
2 stops12h 38m
United Airlines
Deal found 7/21$320
This Delta deal was found by Cheapflights users on 7/21. 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 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 9/122:56 pm
SEA
-
BIS
1 stop6h 15m
Delta
Deal found 7/21$321
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:36 pm
BIS
-
GEG
2 stops8h 23m
Delta
Sun 8/236:45 am
GEG
-
BIS
1 stop8h 11m
Delta
Deal found 7/22$324
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:36 pm
BIS
-
SEA
1 stop8h 18m
Delta
Wed 8/2611:59 pm
SEA
-
BIS
1 stop8h 31m
Delta
Deal found 7/22$325
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:12 am
BIS
-
PDX
1 stop8h 19m
Delta
Fri 9/183:00 pm
PDX
-
BIS
1 stop6h 11m
Delta
Deal found 7/21$325
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:36 pm
BIS
-
SEA
1 stop8h 18m
Delta
Thu 8/2711:59 pm
SEA
-
BIS
1 stop8h 31m
Delta
Deal found 7/22$329
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Mon 8/1710:18 pm
BIS
-
SEA
2 stops38h 21m
Multiple Airlines
Wed 8/268:53 pm
SEA
-
BIS
1 stop14h 55m
Multiple Airlines
Deal found 7/22$337

Find flight deals from Bismarck to Washington

Keep the following information in mind while searching for Bismarck to Washington flight deals. Data was last updated July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Delta)

One-way from

$185
(Kiwi.com)

Popular in

June

Cheapest in

July

Average price

$264
Provider with most accurate pricing for Bismarck-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bismarck-Seattle/Tacoma Intl flights.
Search Deals
From Bismarck to Washington
Search Deals
One-way flight from Bismarck to Washington
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck to Washington 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 July 25, 2026.
Use the filters below to find and compare flights from Bismarck to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BismarckSpokane

BIS - GEG

BISGEG

Bismarck

Thu 9/10

5:40 pm-10:56 pm

1 stop7h 16m

Spokane

Sat 9/12

6:45 am-5:00 pm

1 stop8h 15m

$319

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Mon 8/17

6:00 am-9:32 am

1 stop5h 32m

Portland

Tue 8/25

9:00 am-11:38 pm

2 stops12h 38m

$320

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/5

5:36 pm-10:00 pm

1 stop6h 24m

Seattle/Tacoma Intl

Sat 9/12

2:56 pm-11:11 pm

1 stop6h 15m

$321

BismarckSpokane

BIS - GEG

BISGEG

Bismarck

Thu 9/10

5:40 pm-10:56 pm

1 stop7h 16m

Spokane

Mon 9/14

7:30 pm-10:32 am

2 stops13h 02m

$324

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Fri 9/18

5:40 pm-11:55 pm

1 stop8h 15m

Seattle/Tacoma Intl

Wed 9/23

11:59 pm-10:32 am

1 stop8h 33m

$325

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Fri 9/11

11:12 am-5:31 pm

1 stop8h 19m

Portland

Fri 9/18

3:00 pm-11:11 pm

1 stop6h 11m

$325

BismarckPortland

BIS - PDX

BISPDX

Bismarck

Thu 11/26

5:30 pm-11:47 pm

1 stop8h 17m

Portland

Sun 11/29

3:10 pm-11:21 pm

1 stop6h 11m

$339

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Sat 9/5

5:36 pm-10:00 pm

1 stop6h 24m

Seattle/Tacoma Intl

Fri 9/11

6:00 am-5:00 pm

1 stop9h 00m

$350

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Thu 9/10

5:40 pm-11:55 pm

1 stop8h 15m

Seattle/Tacoma Intl

Mon 9/21

11:59 pm-10:32 am

1 stop8h 33m

$354

BismarckSeattle

BIS - SEA

BISSEA

Bismarck

Mon 8/17

6:00 am-10:01 am

1 stop6h 01m

Seattle/Tacoma Intl

Wed 8/26

1:16 pm-11:38 pm

2 stops8h 22m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 48 resultsSorted by cheapest first
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5

Best time to book a flight from Bismarck to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Bismarck 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 Bismarck to Washington

What is the cheapest month to book a flight from Bismarck to State of Washington?

Currently, July is the cheapest month in which you can book a flight from Bismarck to State of Washington (average of $264). Flying from Bismarck to State of Washington 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 State of Washington?

Airfare is typical for this route at the moment.
Bismarck to State of Washington flights typically cost between $287 and $560 in September.
The cheapest round-trip price found within the last 5 days was $311 on Delta (Sep 22-Sep 26).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated July 25, 2026.
See what other customers who have flown with Delta and United Airlines from Bismarck to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,486 reviews

Overall

7.8

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
Delta
7.8
Good
8,486 reviews
Delta
7.8
Good
8,486 reviews

Overall

7.8

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than
United Airlines
7.4
Good
10,034 reviews
Delta
7.8
Good
8,486 reviews

Overall

7.8

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Peter,Oct 2023

MSP - GEG

The amount of carry on is put of control. We were in group 3 boarding and there was no room in upper storage for our 1 bag (between 2 people) Just because we can’t afford to up grade our seats… $2000 more. We get penaltized. Make us feel less than

Related info for your journey

Find useful and relevant information for your journey from Bismarck to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Bismarck to Washington?

    Bismarck (BIS), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Bismarck to Washington.

  • How long is the flight from Bismarck to State of Washington?

    Airlines like Delta and United Airlines fly from Bismarck to State of Washington in about 5h 32m. The time it takes to get you to your destination can typically vary by up to 1h 44m. The distance between Bismarck and State of Washington is about 1044 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Bismarck to State of Washington?

    While some choose either Bismarck - Portland or Bismarck - Spokane, Bismarck - Seattle/Tacoma Intl is the most popular route from Bismarck to State of Washington.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck to Washington 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 State of Washington?

    Currently, July is the cheapest month in which you can book a flight from Bismarck to State of Washington (average of $264). Flying from Bismarck to State of Washington 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Bismarck to Washington

Discover the top 2 airlines that operate flights from Bismarck to Washington. 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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$354FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$287Average$467FlexibilityNo cancel feeOn-time69%

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