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Washington, D.C.

$99+ Cheap flights from Boise (BOI) to Washington, D.C. (WAS)

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — WAS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Boise to Washington, D.C.

Cheapest flights from Boise to Washington, D.C.
Explore the most affordable flight options available from Boise to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/812:15 pm
BOI
-
DCA
1 stop22h 47m
Frontier
Wed 3/118:00 am
DCA
-
BOI
1 stop29h 20m
Frontier
Deal found 1/26$173
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:56 am
BOI
-
DCA
1 stop23h 04m
Frontier
Sat 2/216:00 pm
DCA
-
BOI
1 stop19h 11m
Frontier
Deal found 1/25$185
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 3/105:00 am
BOI
-
IAD
1 stop6h 05m
United Airlines
Sat 3/144:03 pm
IAD
-
BOI
1 stop7h 31m
United Airlines
Deal found 1/25$257
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Sat 4/251:29 pm
BOI
-
DCA
1 stop8h 30m
American Airlines
Tue 4/287:05 am
DCA
-
BOI
1 stop8h 37m
American Airlines
Deal found 1/24$257
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:30 pm
BOI
-
BWI
1 stop8h 09m
Delta
Tue 4/76:00 am
BWI
-
BOI
1 stop8h 38m
Delta
Deal found 1/26$257
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/107:30 pm
BOI
-
IAD
2 stops14h 02m
Delta
Sat 3/147:00 am
IAD
-
BOI
1 stop8h 05m
Delta
Deal found 1/26$262
This Delta deal was found by Cheapflights users on 1/25. 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.
Sat 4/253:23 pm
BOI
-
DCA
1 stop6h 20m
Delta
Tue 4/286:00 am
DCA
-
BOI
2 stops10h 26m
Delta
Deal found 1/25$262
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:00 am
BOI
-
IAD
2 stops11h 59m
Delta
Tue 4/712:14 pm
IAD
-
BOI
2 stops13h 31m
Delta
Deal found 1/26$268
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/101:25 pm
BOI
-
DCA
1 stop26h 34m
Alaska Airlines
Sat 3/148:59 am
DCA
-
BOI
1 stop14h 20m
Alaska Airlines
Deal found 1/26$293
This Delta deal was found by Cheapflights users on 1/23. 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.
Wed 3/41:51 pm
BOI
-
IAD
1 stop7h 19m
Delta
Sun 3/87:00 am
IAD
-
BOI
1 stop11h 00m
Delta
Deal found 1/23$302
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:30 pm
BOI
-
IAD
1 stop7h 40m
Delta
Wed 3/257:00 am
IAD
-
BOI
1 stop8h 05m
Delta
Deal found 1/26$318
This Delta deal was found by Cheapflights users on 1/25. 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.
Sat 4/182:18 pm
BOI
-
IAD
1 stop8h 09m
Delta
Thu 4/237:00 am
IAD
-
BOI
1 stop11h 14m
Delta
Deal found 1/25$321

Find flight deals from Boise to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Washington, D.C. (WAS). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$99
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$1,006
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
Search Deals
From Boise Air Term. Gowen Fld to Washington, D.C. (WAS)
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Washington, D.C. 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 January 26, 2026.
Use the filters below to find and compare flights from Boise to Washington, D.C. that are best for you.

Fly from

Boise

Fly to

Washington, D.C.

Route

Depart

Return

Price

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 3/7

1:51 pm-11:10 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$257

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 4/25

1:29 pm-11:59 pm

1 stop8h 30m

Washington, D.C. Reagan-National

Tue 4/28

7:05 am-1:42 pm

1 stop8h 37m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

1:45 pm-11:48 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-1:05 pm

1 stop8h 05m

$257

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 2/17

5:50 am-3:20 pm

1 stop7h 30m

Washington, D.C. Reagan-National

Wed 2/25

6:05 am-1:59 pm

1 stop9h 54m

$257

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 3/18

11:30 pm-9:10 am

1 stop7h 40m

Washington, D.C. Reagan-National

Wed 3/25

4:40 pm-11:45 pm

1 stop9h 05m

$257

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 4/25

5:40 am-3:27 pm

1 stop7h 47m

Washington, D.C. Reagan-National

Tue 4/28

6:00 am-2:26 pm

2 stops10h 26m

$262

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 3/10

1:25 pm-5:59 pm

1 stop26h 34m

Washington, D.C. Reagan-National

Sat 3/14

5:00 pm-11:59 pm

1 stop8h 59m

$293

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 3/18

11:30 pm-9:10 am

1 stop7h 40m

Washington, D.C. Dulles Intl

Wed 3/25

7:00 am-1:05 pm

1 stop8h 05m

$318

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 4/18

1:52 pm-11:55 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Thu 4/23

7:00 am-1:11 pm

1 stop8h 11m

$321

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 3/10

10:49 am-9:45 pm

1 stop8h 56m

Washington, D.C. Reagan-National

Sat 3/14

4:11 pm-9:34 pm

1 stop7h 23m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 47 results
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Compare providers for flights from Boise to Washington, D.C.

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 Boise to Washington, D.C. in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Boise-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Washington, D.C. 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 Boise-Washington, D.C. 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 Boise to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Boise 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 Boise to Washington, D.C.

What is the cheapest month to book a flight from Boise to Washington, D.C.?

Currently, April is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $141). Flying from Boise to Washington, D.C. in December is currently the most expensive (average of $369). 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 Boise to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boise to Washington, D.C.. 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.
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,792 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,268 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,111 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,199 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Frontier
5.7
Fair
3,058 reviews
Alaska Airlines
8.0
Very good
11,792 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Boise to Washington, D.C.. 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 Boise to Washington, D.C.?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Washington, D.C.. On average, Air Term. Gowen Fld has 0 outbound flights to Washington, D.C. per day from 5 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Boise to Washington, D.C.?

    For as low as $337, Delta can have you in Washington, D.C. from Boise in 6h 45m. The distance between Boise and Washington, D.C. is about 2052 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 Boise to Washington, D.C. round-trip?

    According to our current data, Alaska Airlines ($141), Delta ($224), and United Airlines ($278) offers the cheapest pricing from Boise to Washington, D.C.. You may be able to fly from Boise to Washington, D.C. for 69% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Boise to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $104. Delta flights start at $125 while deals on United Airlines start at $150 one-way.

  • What are the most popular routes from Boise to Washington, D.C.?

    While some choose either Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National or Boise Air Term. Gowen Fld - Baltimore/Washington, Boise Air Term. Gowen Fld - Washington, D.C. Dulles Intl is the most popular route from Boise to Washington, D.C..

  • Can I find deals for flights from Boise to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Boise to Washington, D.C.?

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

  • Can I find deals for business class flights from Boise to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Boise to Washington, D.C. 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 Boise to Washington, D.C.?

    Currently, April is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $141). Flying from Boise to Washington, D.C. in December is currently the most expensive (average of $369). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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 5 airlines flying from Boise to Washington, D.C.

Discover the top 5 airlines that operate flights from Boise to Washington, D.C.. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$346FlexibilityNo cancel feeOn-time75%
DeltaCheapest$224Average$420FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$521FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$484FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$340Average$486FlexibilityNo cancel feeOn-time63%

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