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Washington, D.C.

$100+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — WAS
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 4/256:00 am
BOI
-
IAD
1 stop16h 09m
Alaska Airlines
Tue 4/287:10 am
IAD
-
BOI
1 stop18h 49m
Alaska Airlines
Deal found 3/9$227
This Delta deal was found by Cheapflights users on 3/9. 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 4/255:40 am
BOI
-
DCA
1 stop7h 47m
Delta
Tue 4/284:39 pm
DCA
-
BOI
1 stop9h 38m
Delta
Deal found 3/9$227
This Delta deal was found by Cheapflights users on 3/6. 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.
Thu 4/231:52 pm
BOI
-
IAD
1 stop8h 03m
Delta
Wed 4/296:00 am
IAD
-
BOI
2 stops12h 14m
Delta
Deal found 3/6$232
This Delta deal was found by Cheapflights users on 3/8. 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 5/58:40 pm
BOI
-
IAD
2 stops13h 25m
Delta
Tue 5/126:00 am
IAD
-
BOI
2 stops13h 09m
Delta
Deal found 3/8$237
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:00 am
BOI
-
IAD
1 stop16h 09m
Alaska Airlines
Wed 5/69:00 am
IAD
-
BOI
1 stop16h 59m
Alaska Airlines
Deal found 3/6$246
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/152:22 pm
BOI
-
IAD
1 stop13h 18m
Alaska Airlines
Sat 4/257:10 am
IAD
-
BOI
1 stop8h 42m
Alaska Airlines
Deal found 3/9$252
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:40 pm
BOI
-
BWI
2 stops10h 31m
Delta
Wed 5/67:15 am
BWI
-
BOI
2 stops10h 59m
Delta
Deal found 3/7$257
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
-
DCA
1 stop21h 59m
Frontier
Wed 4/156:00 pm
DCA
-
BOI
1 stop19h 08m
Frontier
Deal found 3/8$265
This Delta deal was found by Cheapflights users on 3/9. 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 4/155:40 am
BOI
-
DCA
1 stop7h 47m
Delta
Sat 4/257:40 am
DCA
-
BOI
1 stop8h 46m
Delta
Deal found 3/9$269
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/156:58 pm
BOI
-
IAD
1 stop8h 58m
United Airlines
Sat 4/256:15 am
IAD
-
BOI
1 stop7h 34m
United Airlines
Deal found 3/7$271
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/226:00 am
BOI
-
IAD
1 stop16h 09m
Alaska Airlines
Fri 5/19:00 am
IAD
-
BOI
1 stop16h 59m
Alaska Airlines
Deal found 3/9$272
This Delta deal was found by Cheapflights users on 3/9. 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 4/151:52 pm
BOI
-
IAD
1 stop8h 03m
Delta
Sat 4/256:00 am
IAD
-
BOI
2 stops10h 26m
Delta
Deal found 3/9$274

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Alaska Airlines)

One-way from

$100
(Priceline)

Popular in

December

Cheapest in

February

Average price

$425
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. 26% potential increase in price ($141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 10, 2026.
Use the filters below to find and compare flights from Boise to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/30

1:52 pm-11:55 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Wed 5/6

7:00 am-1:12 pm

1 stop8h 12m

$227

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 4/29

5:40 am-3:27 pm

1 stop7h 47m

Washington, D.C. Reagan-National

Tue 5/5

4:39 pm-12:17 am

1 stop9h 38m

$227

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/23

1:52 pm-11:55 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Wed 4/29

6:00 am-4:14 pm

2 stops12h 14m

$232

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 5/5

2:18 pm-12:38 am

1 stop8h 20m

Baltimore/Washington

Tue 5/12

6:10 am-5:09 pm

2 stops12h 59m

$307

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/30

7:43 am-12:09 am

2 stops14h 26m

Washington, D.C. Dulles Intl

Wed 5/6

7:10 am-1:52 pm

1 stop8h 42m

$323

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 4/15

5:15 pm-5:20 am

2 stops10h 05m

Baltimore/Washington

Sat 4/25

2:40 pm-10:05 pm

2 stops9h 25m

$332

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 4/30

11:35 pm-9:36 am

1 stop8h 01m

Baltimore/Washington

Wed 5/6

7:15 am-4:14 pm

2 stops10h 59m

$336

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Mon 4/13

7:03 pm-6:00 am

1 stop8h 57m

Baltimore/Washington

Wed 4/22

6:00 am-11:49 am

1 stop7h 49m

$337

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 4/29

6:00 am-11:40 pm

2 stops15h 40m

Washington, D.C. Dulles Intl

Tue 5/5

4:30 pm-12:25 am

2 stops9h 55m

$337

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sun 4/12

11:40 pm-9:15 am

1 stop7h 35m

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-2:26 pm

2 stops10h 26m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 54 resultsSorted by cheapest first
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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 March.
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.

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 March 10, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta 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
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
8.0
Very good
12,025 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Southwest
8.0
Very good
4,317 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.9
Good
8,277 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
United Airlines
7.4
Good
9,413 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Frontier
5.7
Fair
3,035 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 $227, Delta can have you in Washington, D.C. from Boise in 8h 03m. The distance between Boise and Washington, D.C. is about 2019 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 American Airlines ($300) offers the cheapest pricing from Boise to Washington, D.C.. You may be able to fly from Boise to Washington, D.C. for 64% 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 $90. Delta flights start at $125 while deals on American Airlines start at $185 one-way.

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

    While some choose either Boise Air Term. Gowen Fld - Baltimore/Washington or Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National, 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
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$453FlexibilityNo cancel feeOn-time75%
DeltaCheapest$224Average$426FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$504FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$484FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$340Average$474FlexibilityNo cancel feeOn-time63%

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