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Washington, D.C.

$127+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — WAS
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Washington, D.C. are usually found in February or April, booked 37 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap 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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$212
(Alaska Airlines)

One-way from

$127
(Cheapflightsfares)

Popular in

March

Cheapest in

February

Average price

$374
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
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From Boise Air Term. Gowen Fld to Washington, D.C. (WAS)
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One-way flight from Boise Air Term. Gowen Fld to Washington, D.C. (WAS)
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High demand for flights, 7% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 29, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 9/35:45 pmBOI - BWI
1 stop9h 48mAlaska Airlines
Wed 9/107:00 amBWI - BOI
1 stop10h 00mAlaska Airlines
Deal found 4/28$212
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2312:16 pmBOI - BWI
1 stop15h 54mMultiple Airlines
Wed 5/285:23 pmBWI - BOI
1 stop20h 28mMultiple Airlines
Deal found 4/28$246
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 8/96:00 pmBOI - IAD
1 stop10h 50mAlaska Airlines
Sat 8/166:30 amIAD - BOI
1 stop10h 34mAlaska Airlines
Deal found 4/28$279
This Delta deal was found by Cheapflights users on 4/28. 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 7/111:40 pmBOI - BWI
1 stop9h 12mDelta
Tue 7/87:18 pmBWI - BOI
1 stop6h 41mDelta
Deal found 4/28$287
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 8/128:54 amBOI - DCA
1 stop10h 05mAlaska Airlines
Mon 8/189:59 amDCA - BOI
1 stop14h 55mAlaska Airlines
Deal found 4/28$300
This Delta deal was found by Cheapflights users on 4/28. 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 8/710:24 amBOI - IAD
1 stop6h 00mDelta
Thu 8/146:40 pmIAD - BOI
1 stop6h 49mDelta
Deal found 4/28$301
This American Airlines deal was found by Cheapflights users on 4/28. 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 6/113:35 pmBOI - DCA
1 stop7h 16mAmerican Airlines
Wed 6/183:25 pmDCA - BOI
1 stop8h 29mAmerican Airlines
Deal found 4/28$301
This Delta deal was found by Cheapflights users on 4/29. 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 6/1911:40 pmBOI - DCA
1 stop9h 20mDelta
Tue 6/243:40 pmDCA - BOI
2 stops10h 34mDelta
Deal found 4/29$306
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/277:07 pmBOI - IAD
1 stop8h 01mUnited Airlines
Tue 6/33:44 pmIAD - BOI
1 stop7h 42mUnited Airlines
Deal found 4/29$317
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/274:40 pmBOI - BWI
2 stops10h 40mUnited Airlines
Tue 6/34:22 pmBWI - BOI
1 stop8h 35mUnited Airlines
Deal found 4/29$320
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/812:36 pmBOI - DCA
1 stop7h 23mFrontier
Wed 6/116:00 pmDCA - BOI
1 stop19h 47mFrontier
Deal found 4/28$321
This Orbitz deal was found by Cheapflights users on 4/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/48:55 amBOI - DCA
1 stop10h 10mMultiple Airlines
Sun 6/87:00 amDCA - BOI
1 stop6h 47mMultiple Airlines
Deal found 4/27$335

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 April 29, 2025.
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

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 9/3

5:45 pm-5:33 am

1 stop9h 48m

Baltimore/Washington

Wed 9/10

7:00 am-3:00 pm

1 stop10h 00m

$212

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Fri 5/23

12:16 pm-6:10 am

1 stop15h 54m

Baltimore/Washington

Wed 5/28

5:23 pm-11:51 am

1 stop20h 28m

$246

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 8/9

6:00 pm-6:50 am

1 stop10h 50m

Washington, D.C. Dulles Intl

Sat 8/16

6:30 am-3:04 pm

1 stop10h 34m

$279

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 7/1

11:40 pm-10:52 am

1 stop9h 12m

Baltimore/Washington

Tue 7/8

7:18 pm-11:59 pm

1 stop6h 41m

$287

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 8/12

8:54 am-8:59 pm

1 stop10h 05m

Washington, D.C. Reagan-National

Mon 8/18

9:59 am-10:54 pm

1 stop14h 55m

$300

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 6/11

3:35 pm-12:51 am

1 stop7h 16m

Washington, D.C. Reagan-National

Wed 6/18

3:25 pm-9:54 pm

1 stop8h 29m

$301

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 8/7

10:24 am-6:24 pm

1 stop6h 00m

Washington, D.C. Dulles Intl

Thu 8/14

6:40 pm-11:29 pm

1 stop6h 49m

$301

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 6/19

11:40 pm-11:00 am

1 stop9h 20m

Washington, D.C. Reagan-National

Tue 6/24

3:40 pm-12:14 am

2 stops10h 34m

$306

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 5/27

7:07 pm-5:08 am

1 stop8h 01m

Washington, D.C. Dulles Intl

Tue 6/3

3:44 pm-9:26 pm

1 stop7h 42m

$317

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 5/27

4:40 pm-5:20 am

2 stops10h 40m

Baltimore/Washington

Tue 6/3

4:22 pm-10:57 pm

1 stop8h 35m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 41 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 eDreams the most. eDreams 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.

How far ahead should I book a flight from Boise to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Washington, D.C.. Price data was last updated on April 25, 2025.

The best time to book flights from Boise to Washington, D.C. is 37 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $309). Flying from Boise to Washington, D.C. in June is currently the most expensive (average of $373). 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.

What is the cheapest time of day to fly from BOI to WAS?

Find hourly flight availability from Boise to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Boise to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight at noon.

What is the cheapest day to fly from Boise to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Boise to Washington, D.C.. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to Washington, D.C. flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 29, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,402 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Boise to Washington, D.C. round-trip?

    According to our current data, Alaska Airlines ($212), Delta ($287), and American Airlines ($301) offers the cheapest pricing from Boise to Washington, D.C.. You may be able to fly from Boise to Washington, D.C. for 54% 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 $127. Delta flights start at $144 while deals on United Airlines start at $149 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. Dulles Intl or Boise Air Term. Gowen Fld - Baltimore/Washington, Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National 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, August is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $309). Flying from Boise to Washington, D.C. in June is currently the most expensive (average of $373). 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 Boise?

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Browse thousands of different options on Cheapflights for your next trip

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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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$489FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$300Average$560FlexibilityNo cancel feeOn-time69%
DeltaCheapest$300Average$475FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$316Average$519FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$482FlexibilityNo cancel feeOn-time63%

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