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Cheap flights from Boise to Washington, D.C. from $58

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Washington, D.C. departing on 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boise to Washington, D.C.

Cheap round-trip flights

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Frontier Logo
12:07 pm - 9:59 pmBOI-DCA
7h 52m1 stop
Frontier Logo
6:00 pm - 11:12 amDCA-BOI
19h 12m1 stop
$202Frontier
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Mon, Jan 26 - Thu, Jan 29
Frontier Logo
12:07 pm - 9:59 pmBOI-DCA
7h 52m1 stop
Frontier Logo
8:00 am - 1:25 pmDCA-BOI
7h 25m1 stop
$239Frontier
Find Deal
Sun, Jan 11 - Thu, Jan 15
Delta Logo
11:44 am - 12:22 amBOI-BWI
10h 38m2 stops
Delta Logo
7:15 am - 6:51 pmBWI-BOI
13h 36m2 stops
$276Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Alaska Airlines Logo
6:00 pm - 5:43 pmBOI-IAD
21h 43m1 stop
Alaska Airlines Logo
6:04 pm - 11:01 pmIAD-BOI
30h 57m1 stop
$287Alaska Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 9
Delta Logo
2:04 pm - 12:22 amBOI-BWI
8h 18m1 stop
Delta Logo
6:00 am - 8:20 pmBWI-BOI
16h 20m2 stops
$291Delta
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Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
12:07 pm - 9:59 pmBOI-DCA
7h 52m1 stop
Multiple Airlines Logo
5:09 pm - 11:58 pmDCA-BOI
8h 49m1 stop
$291Multiple Airlines
Find Deal
Mon, Jan 26 - Fri, Jan 30
Alaska Airlines Logo
5:55 pm - 4:09 pmBOI-DCA
20h 14m1 stop
Alaska Airlines Logo
8:00 am - 11:01 pmDCA-BOI
17h 01m1 stop
$295Alaska Airlines
Find Deal
Thu, Jan 29 - Sun, Feb 1
United Airlines Logo
6:55 pm - 5:51 amBOI-IAD
8h 56m1 stop
United Airlines Logo
2:36 pm - 9:13 pmIAD-BOI
8h 37m1 stop
$319United Airlines
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Sat, Mar 7 - Wed, Mar 11
Southwest Logo
6:00 am - 6:10 pmBOI-DCA
10h 10m1 stop
Southwest Logo
4:30 pm - 11:50 pmDCA-BOI
9h 20m1 stop
$319Southwest
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Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
10:49 am - 9:45 pmBOI-DCA
8h 56m1 stop
United Airlines Logo
3:30 pm - 10:51 pmDCA-BOI
9h 21m1 stop
$324United Airlines
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Sat, Mar 7 - Wed, Mar 11

Alaska Airlines flights from Boise to Washington, D.C.

Our best Alaska Airlines deals on Boise to Washington, D.C. flight tickets
Alaska Airlines
Jan 5
BOI6:00 pmBoise Air Term. Gowen Fld
21h 43m
1 stop
IAD5:43 pmWashington, D.C. Dulles Intl
Jan 9
IAD6:04 pmWashington, D.C. Dulles Intl
30h 57m
1 stop
BOI11:01 pmBoise Air Term. Gowen Fld
$287
Find similar
Alaska Airlines
Jan 29
BOI5:55 pmBoise Air Term. Gowen Fld
20h 14m
1 stop
DCA4:09 pmWashington, D.C. Reagan-National
Feb 1
DCA8:00 amWashington, D.C. Reagan-National
17h 01m
1 stop
BOI11:01 pmBoise Air Term. Gowen Fld
$295
Find similar
Alaska Airlines
Jan 16
BOI1:55 pmBoise Air Term. Gowen Fld
24h 31m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 20
IAD6:04 pmWashington, D.C. Dulles Intl
27h 06m
2 stops
BOI7:10 pmBoise Air Term. Gowen Fld
$340
Find similar

United Airlines flights from Boise to Washington, D.C.

Our best United Airlines deals on Boise to Washington, D.C. flight tickets
United Airlines
Mar 7
BOI6:55 pmBoise Air Term. Gowen Fld
8h 56m
1 stop
IAD5:51 amWashington, D.C. Dulles Intl
Mar 11
IAD2:36 pmWashington, D.C. Dulles Intl
8h 37m
1 stop
BOI9:13 pmBoise Air Term. Gowen Fld
$319
Find similar
United Airlines
Mar 7
BOI7:07 amBoise Air Term. Gowen Fld
7h 47m
1 stop
BWI4:54 pmBaltimore/Washington
Mar 11
BWI8:02 amBaltimore/Washington
13h 14m
2 stops
BOI7:16 pmBoise Air Term. Gowen Fld
$324
Find similar
United Airlines
Jan 26
BOI2:37 pmBoise Air Term. Gowen Fld
6h 45m
1 stop
IAD11:22 pmWashington, D.C. Dulles Intl
Jan 30
IAD4:11 pmWashington, D.C. Dulles Intl
7h 41m
1 stop
BOI9:52 pmBoise Air Term. Gowen Fld
$371
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 21, 2025.
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

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 1/26

12:07 pm-9:59 pm

1 stop7h 52m

Washington, D.C. Reagan-National

Thu 1/29

6:00 pm-11:12 am

1 stop19h 12m

$202

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sun 1/11

12:07 pm-9:59 pm

1 stop7h 52m

Washington, D.C. Reagan-National

Thu 1/15

8:00 am-1:25 pm

1 stop7h 25m

$239

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 12/9

11:44 am-12:22 am

2 stops10h 38m

Baltimore/Washington

Sat 12/13

7:15 am-6:51 pm

2 stops13h 36m

$276

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Mon 1/5

6:00 pm-5:43 pm

1 stop21h 43m

Washington, D.C. Dulles Intl

Fri 1/9

6:04 pm-11:01 pm

1 stop30h 57m

$287

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 12/6

2:04 pm-12:22 am

1 stop8h 18m

Baltimore/Washington

Sat 12/13

6:00 am-8:20 pm

2 stops16h 20m

$291

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 1/26

12:07 pm-9:59 pm

1 stop7h 52m

Washington, D.C. Reagan-National

Fri 1/30

5:09 pm-11:58 pm

1 stop8h 49m

$291

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 1/29

5:55 pm-4:09 pm

1 stop20h 14m

Washington, D.C. Reagan-National

Sun 2/1

8:00 am-11:01 pm

1 stop17h 01m

$295

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 3/7

6:55 pm-5:51 am

1 stop8h 56m

Washington, D.C. Dulles Intl

Wed 3/11

2:36 pm-9:13 pm

1 stop8h 37m

$319

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 3/7

6:00 am-6:10 pm

1 stop10h 10m

Washington, D.C. Reagan-National

Wed 3/11

4:30 pm-11:50 pm

1 stop9h 20m

$319

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 3/7

10:49 am-9:45 pm

1 stop8h 56m

Washington, D.C. Reagan-National

Wed 3/11

3:30 pm-10:51 pm

1 stop9h 21m

$324

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Boise to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boise and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from Boise, with most prices found around $293. If you’re not able to fly to Washington, D.C. in August, then February is your next best option. Flight prices from Boise to Washington, D.C. during February average around $351.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Boise is on a Saturday. momondo users have found tickets for Saturday departures for as low as $436. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Washington, D.C. for around $551.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Boise to Washington, D.C. when you can find flight prices for as low as $433. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $547. Of course, these prices can vary depending on the time of year and what airport you fly to.

How have Boise to Washington, D.C. flight prices changed over time?

As of November 2025, prices for Boise to Washington, D.C. flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from Boise to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Washington, D.C. (BOI to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Washington, D.C.

Direct flights

None
There are no direct flights from Boise to Washington, D.C.. There are no popular flight routes from Boise to Washington, D.C..
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  • How far is Boise Air Term. Gowen Fld to Washington, D.C. by plane?

    There are 2039.5 mi between Boise Air Term. Gowen Fld and Washington, D.C.. A reasonable flight in good conditions will take 5h 55m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Washington, D.C.?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Washington, D.C. are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Washington, D.C.?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Washington, D.C.?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boise Air Term. Gowen Fld Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boise to Washington, D.C.?

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

Compare and see reviews for airlines that fly from Boise to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $141Free CancellationRating
8.0
11,326 reviews
Search Alaska Airlines flights
DeltaPriceFrom $249Free CancellationRating
7.9
8,002 reviews
Search Delta flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
American AirlinesPriceFrom $300Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,251 reviews
Search Southwest flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Boise.

Can I find flights from Boise to Washington, D.C. with flexible booking policies on momondo?

All flight searches from Boise to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boise to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boise to Washington, D.C..

I’m not ready to book a flight from Boise to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boise to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport