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Cheap flights from Boise to Washington, D.C. from $141

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 3/12. 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

Enter your travel dates to find the best prices.
Frontier Logo
12:07 pm - 9:59 pm
BOI
-
DCA
7h 52m1 stop
Frontier Logo
8:00 am - 1:25 pm
DCA
-
BOI
7h 25m1 stop
$203Frontier
Mon, Jan 12 - Thu, Jan 15
Frontier Logo
12:07 pm - 1:15 pm
BOI
-
DCA
23h 08m1 stop
Frontier Logo
2:00 pm - 11:51 am
DCA
-
BOI
23h 51m1 stop
$212Frontier
Mon, Feb 9 - Wed, Feb 11
Alaska Airlines Logo
6:23 am - 4:26 pm
BOI
-
IAD
8h 03m1 stop
Alaska Airlines Logo
6:04 pm - 12:51 pm
IAD
-
BOI
20h 47m1 stop
$287Alaska Airlines
Sat, Jan 24 - Wed, Jan 28
Alaska Airlines Logo
10:00 am - 9:59 pm
BOI
-
DCA
9h 59m1 stop
Alaska Airlines Logo
5:01 pm - 3:10 pm
DCA
-
BOI
24h 09m1 stop
$287Alaska Airlines
Sat, Jan 31 - Wed, Feb 4
Delta Logo
1:00 pm - 11:44 pm
BOI
-
BWI
8h 44m1 stop
Delta Logo
3:00 pm - 8:55 pm
BWI
-
BOI
7h 55m1 stop
$299Delta
Sat, Jan 17 - Mon, Jan 26
Delta Logo
10:39 am - 11:10 pm
BOI
-
IAD
10h 31m1 stop
Delta Logo
7:05 am - 4:17 pm
IAD
-
BOI
11h 12m2 stops
$302Delta
Tue, Jan 27 - Tue, Feb 3
United Airlines Logo
2:37 pm - 11:15 pm
BOI
-
BWI
6h 38m1 stop
United Airlines Logo
9:50 am - 6:07 pm
BWI
-
BOI
10h 17m1 stop
$307United Airlines
Wed, Jan 28 - Wed, Feb 4
United Airlines Logo
6:10 am - 3:04 pm
BOI
-
BWI
6h 54m1 stop
United Airlines Logo
9:50 am - 9:23 pm
BWI
-
BOI
13h 33m2 stops
$312United Airlines
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
7:20 am - 4:31 pm
BOI
-
IAD
7h 11m1 stop
American Airlines Logo
7:01 am - 5:07 pm
IAD
-
BOI
12h 06m2 stops
$326American Airlines
Wed, Jan 21 - Sat, Jan 24
American Airlines Logo
6:13 am - 5:47 pm
BOI
-
DCA
9h 34m2 stops
American Airlines Logo
10:05 am - 5:07 pm
DCA
-
BOI
9h 02m1 stop
$326American Airlines
Wed, Jan 28 - Wed, Feb 4

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 24
BOI6:23 amBoise Air Term. Gowen Fld
8h 03m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 28
IAD6:04 pmWashington, D.C. Dulles Intl
20h 47m
1 stop
BOI12:51 pmBoise Air Term. Gowen Fld
$287
Find similar
Alaska Airlines
Feb 10
BOI9:02 amBoise Air Term. Gowen Fld
29h 24m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 15
IAD6:27 pmWashington, D.C. Dulles Intl
30h 13m
1 stop
BOI10:40 pmBoise Air Term. Gowen Fld
$306
Find similar
Alaska Airlines
Feb 18
BOI6:28 amBoise Air Term. Gowen Fld
7h 38m
1 stop
DCA4:06 pmWashington, D.C. Reagan-National
Feb 23
DCA5:00 pmWashington, D.C. Reagan-National
8h 59m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$310
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
Jan 28
BOI2:37 pmBoise Air Term. Gowen Fld
6h 38m
1 stop
BWI11:15 pmBaltimore/Washington
Feb 4
BWI9:50 amBaltimore/Washington
10h 17m
1 stop
BOI6:07 pmBoise Air Term. Gowen Fld
$307
Find similar
United Airlines
Jan 28
BOI6:10 amBoise Air Term. Gowen Fld
6h 54m
1 stop
BWI3:04 pmBaltimore/Washington
Feb 4
BWI9:50 amBaltimore/Washington
13h 33m
2 stops
BOI9:23 pmBoise Air Term. Gowen Fld
$312
Find similar
United Airlines
Jan 28
BOI10:28 amBoise Air Term. Gowen Fld
8h 53m
2 stops
BWI9:21 pmBaltimore/Washington
Feb 4
BWI10:05 amBaltimore/Washington
11h 46m
2 stops
BOI7:51 pmBoise Air Term. Gowen Fld
$334
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 January 1, 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

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 1/12

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

$203

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 2/9

12:07 pm-1:15 pm

1 stop23h 08m

Washington, D.C. Reagan-National

Wed 2/11

2:00 pm-11:51 am

1 stop23h 51m

$212

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 1/24

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Wed 1/28

6:04 pm-12:51 pm

1 stop20h 47m

$287

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 1/31

10:00 am-9:59 pm

1 stop9h 59m

Washington, D.C. Reagan-National

Wed 2/4

5:01 pm-3:10 pm

1 stop24h 09m

$287

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 1/17

1:00 pm-11:44 pm

1 stop8h 44m

Baltimore/Washington

Mon 1/26

3:00 pm-8:55 pm

1 stop7h 55m

$299

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 1/27

10:39 am-11:10 pm

1 stop10h 31m

Washington, D.C. Dulles Intl

Tue 2/3

7:05 am-4:17 pm

2 stops11h 12m

$302

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 1/28

2:37 pm-11:15 pm

1 stop6h 38m

Baltimore/Washington

Wed 2/4

9:50 am-6:07 pm

1 stop10h 17m

$307

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 1/28

6:10 am-3:04 pm

1 stop6h 54m

Baltimore/Washington

Wed 2/4

9:50 am-9:23 pm

2 stops13h 33m

$312

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 1/21

7:20 am-4:31 pm

1 stop7h 11m

Washington, D.C. Dulles Intl

Sat 1/24

7:01 am-5:07 pm

2 stops12h 06m

$326

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 1/28

6:13 am-5:47 pm

2 stops9h 34m

Washington, D.C. Reagan-National

Wed 2/4

10:05 am-5:07 pm

1 stop9h 02m

$326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 $329.

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

As of January 2026, prices for Boise to Washington, D.C. flights are approximately 11% 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.

Fastest flight time

6h 11m

Direct flights

None
The fastest flight from Boise to Washington, D.C. takes 6h 11m
There are no direct flights from Boise to Washington, D.C.. There are no popular flight routes from Boise to Washington, D.C..
Search flight deals

  • 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 6h 11m.

  • 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
11,598 reviews
Search Alaska Airlines flights
DeltaPriceFrom $249Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
11,074 reviews
Search American Airlines flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
9,132 reviews
Search United Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,254 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
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Rockville
Gaithersburg
Manassas
Fairfax
Springfield
Glen Burnie
Reston
Linthicum Heights

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