$263+ Cheap flights from Bismarck (BIS) to Washington
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — SEA
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Cheapest flights from Bismarck to WashingtonExplore 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 September 9, 2026.
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 September 9, 2026.
This Delta deal was found by Cheapflights users on 9/6. 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 10/21:17 pm -
1 stop9h 19m
Sat 10/311:59 pm -
1 stop8h 33m
Deal found 9/6![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/236:12 pm -
1 stop5h 02m
Sun 9/275:00 am -
1 stop6h 01m
Deal found 9/7![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/8. 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 9/285:40 pm -
1 stop8h 15m
Sat 10/311:59 pm -
1 stop8h 33m
Deal found 9/8![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 9/8. 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 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/241:40 pm -
2 stops10h 31m
Wed 10/285:00 am -
1 stop5h 27m
Deal found 9/8![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/8. 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 12/85:41 pm -
1 stop8h 13m
Sun 12/136:00 am -
1 stop8h 59m
Deal found 9/8![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/5. 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 -
1 stop6h 24m
Sat 9/126:00 am -
1 stop9h 00m
Deal found 9/5![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 9/5. 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 9/269:40 am -
1 stop9h 05m
Mon 9/2811:59 pm -
1 stop8h 33m
Deal found 9/5![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 9/4. 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 12/113:45 pm -
1 stop6h 24m
Sat 1/26:15 am -
1 stop8h 35m
Deal found 9/4![Delta logo]()
$470
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/236:12 pm -
1 stop6h 52m
Sun 9/275:00 am -
1 stop6h 01m
Deal found 9/8![United Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Sun 9/66:45 am -
1 stop8h 31m
Sat 9/1210:17 am -
1 stop10h 35m
Deal found 9/5![American Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 9/8. 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 10/75:39 pm -
1 stop8h 05m
Mon 10/1211:51 am -
1 stop6h 04m
Deal found 9/8![Delta logo]()
$479
Best flights from Bismarck to WashingtonDiscover carefully curated flight deals from Bismarck to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Bismarck to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/8. 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 1/265:40 am -
1 stop6h 00m
Sat 1/3012:40 pm -
1 stop5h 30m
Deal found 9/8![United Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/241:40 pm -
2 stops10h 31m
Wed 10/285:00 am -
1 stop5h 27m
Deal found 9/8![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/8. 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 12/85:41 pm -
1 stop8h 13m
Sun 12/136:00 am -
1 stop8h 59m
Deal found 9/8![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/4. 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 12/113:45 pm -
1 stop6h 24m
Sat 1/26:15 am -
1 stop8h 35m
Deal found 9/4![Delta logo]()
$470
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/236:12 pm -
1 stop6h 52m
Sun 9/275:00 am -
1 stop6h 01m
Deal found 9/8![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/25:00 pm -
1 stop7h 59m
Sat 10/31:22 pm -
2 stops8h 21m
Deal found 9/6![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/84:55 pm -
1 stop6h 26m
Sun 12/135:05 am -
1 stop5h 28m
Deal found 9/7![United Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 9/8. 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 10/2212:40 pm -
1 stop6h 18m
Sun 10/256:00 am -
1 stop6h 38m
Deal found 9/8![Delta logo]()
$572
This United Airlines deal was found by Cheapflights users on 9/6. 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 9/265:00 pm -
1 stop6h 15m
Wed 9/3012:16 pm -
2 stops22h 45m
Deal found 9/6![United Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 9/8. 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 1/85:40 am -
2 stops8h 35m
Tue 1/1212:45 pm -
1 stop5h 25m
Deal found 9/8![United Airlines logo]()
$657
Last-minute flights from Bismarck to WashingtonDiscover last-minute flight deals from Bismarck to Washington. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to Washington. Data last updated September 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/121:57 pm -
1 stop7h 23m
Sat 9/1912:01 pm -
1 stop8h 51m
Deal found 9/4![American Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/236:12 pm -
1 stop5h 02m
Sun 9/275:00 am -
1 stop6h 01m
Deal found 9/7![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/8. 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 9/231:17 pm -
1 stop8h 59m
Sat 9/2612:25 am -
1 stop8h 07m
Deal found 9/8![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/236:12 pm -
1 stop6h 52m
Sun 9/275:00 am -
1 stop6h 01m
Deal found 9/8![United Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 9/5. 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 9/269:40 am -
1 stop9h 05m
Mon 9/2811:59 pm -
1 stop8h 33m
Deal found 9/5![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 9/8. 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 9/285:40 pm -
1 stop8h 15m
Sat 10/311:59 pm -
1 stop8h 33m
Deal found 9/8![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/285:00 pm -
1 stop6h 15m
Sat 10/37:11 am -
2 stops11h 09m
Deal found 9/8![United Airlines logo]()
$453
This Delta deal was found by Cheapflights users on 9/6. 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 10/21:17 pm -
1 stop9h 19m
Sat 10/311:59 pm -
1 stop8h 33m
Deal found 9/6![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/25:00 pm -
1 stop7h 59m
Sat 10/31:22 pm -
2 stops8h 21m
Deal found 9/6![United Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/21:57 pm -
1 stop7h 51m
Tue 10/611:59 pm -
1 stop10h 24m
Deal found 9/6![American Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 9/8. 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 10/75:39 pm -
1 stop8h 05m
Mon 10/1211:51 am -
1 stop6h 04m
Deal found 9/8![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/241:40 pm -
2 stops10h 31m
Wed 10/285:00 am -
1 stop5h 27m
Deal found 9/8![United Airlines logo]()
$449
One-way flights from Bismarck to WashingtonSearch for one-way flight options from Bismarck to Washington. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Bismarck to Washington. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/201:30 pm -
2 stops27h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 9/8. 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 10/48:01 am -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$284
This Delta deal was found by Cheapflights users on 9/4. 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 10/145:39 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/287:12 am -
1 stop8h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/191:57 pm -
1 stop9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/142:07 pm -
2 stops11h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/149:30 pm -
3 stops40h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 9/187:28 pm -
2 stops21h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/141:13 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![American Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/186:12 pm -
1 stop6h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/285:00 pm -
3 stops27h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$524
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Delta) |
One-way from | $263 (Kiwi.com) |
Popular in | June |
Cheapest in | July |
Average price | $464 |
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 7,457,451 searches. Data last updated September 9, 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
Cheapest round-trip
BismarckSpokane
BIS Bismarck - GEG Spokane
BISGEG
Bismarck
Sun 10/4
8:01 am-1:28 pm
1 stop7h 27m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$284
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
5:39 pm-11:44 pm
1 stop8h 05m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$319
BismarckSeattle
BIS Bismarck - SEA Seattle/Tacoma Intl
BISSEA
Bismarck
Sun 9/20
1:30 pm-6:36 pm
3 stops31h 06m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$367
BismarckSeattle
BIS Bismarck - SEA Seattle/Tacoma Intl
BISSEA
Bismarck
Mon 9/28
7:12 am-1:29 pm
1 stop8h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$384
BismarckSeattle
BIS Bismarck - SEA Seattle/Tacoma Intl
BISSEA
Bismarck
Sat 9/19
1:57 pm-9:52 pm
1 stop9h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$387
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
2:07 pm-11:59 pm
2 stops11h 52m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$389
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 9/23
1:17 pm-8:16 pm
1 stop8h 59m
Portland
Sat 9/26
12:25 am-10:32 am
1 stop8h 07m
$399
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Tue 1/26
5:40 am-9:40 am
1 stop6h 00m
Portland
Sat 1/30
12:40 pm-8:10 pm
1 stop5h 30m
$411
BismarckPortland
BIS Bismarck - PDX Portland
BISPDX
Bismarck
Wed 10/14
9:30 pm-11:40 am
3 stops40h 10m
Portland
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$417
BismarckSeattle
BIS Bismarck - SEA Seattle/Tacoma Intl
BISSEA
Bismarck
Fri 9/18
7:28 pm-3:08 pm
2 stops21h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$428
Showing 1-10 of 24 resultsSorted by cheapest first
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.
BIS-GEG
BIS-SEA
BIS-PDX
BIS-PSC
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
BIS-USWA
BIS-GEG
BIS-SEA
BIS-PDX
BIS-PSC
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 below average for this route at the moment.
Bismarck to State of Washington flights typically cost between $400 and $628 in October.The cheapest round-trip price found within the last 5 days was $349 on Delta (Oct 2-Oct 3).
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 September 9, 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.
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayPeter,Oct 2023
MSP - GEG
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayPeter,Oct 2023
MSP - GEG
Food
7.2
Boarding
8.1
Overall
7.8
Crew
8.5
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayPeter,Oct 2023
MSP - GEG
Related info for your journey
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Bismarck and Washington flights
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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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$310 | Average$464 | FlexibilityNo cancel fee | On-time69% |