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Cheap flights from Boise to Washington, D.C. from $78

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 2/15. 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
2:00 pm - 11:12 am
DCA
-
BOI
23h 12m1 stop
$141Frontier
Fri, Jan 23 - Sun, Jan 25
Frontier Logo
11:56 am - 9:59 pm
BOI
-
DCA
8h 03m1 stop
Frontier Logo
2:00 pm - 11:11 am
DCA
-
BOI
23h 11m1 stop
$155Frontier
Sun, Feb 15 - Thu, Feb 19
United Airlines Logo
2:40 pm - 11:25 pm
BOI
-
BWI
6h 45m1 stop
United Airlines Logo
8:00 am - 1:38 pm
BWI
-
BOI
7h 38m1 stop
$229United Airlines
Tue, Feb 24 - Wed, Mar 4
United Airlines Logo
5:00 am - 3:07 pm
BOI
-
BWI
8h 07m1 stop
United Airlines Logo
10:30 am - 8:55 pm
BWI
-
BOI
12h 25m2 stops
$234United Airlines
Tue, Feb 24 - Wed, Mar 4
Delta Logo
7:30 am - 11:47 pm
BOI
-
BWI
14h 17m2 stops
Delta Logo
11:45 am - 8:55 pm
BWI
-
BOI
11h 10m2 stops
$240Delta
Tue, Feb 24 - Wed, Mar 4
Delta Logo
11:20 am - 11:57 pm
BOI
-
IAD
10h 37m2 stops
Delta Logo
7:00 am - 1:05 pm
IAD
-
BOI
8h 05m1 stop
$244Delta
Wed, Feb 11 - Wed, Mar 18
Alaska Airlines Logo
6:28 am - 5:46 pm
BOI
-
BWI
9h 18m1 stop
Alaska Airlines Logo
6:46 pm - 7:13 am
BWI
-
BOI
14h 27m2 stops
$267Alaska Airlines
Tue, Mar 3 - Sat, Mar 7
Alaska Airlines Logo
6:28 am - 5:20 pm
BOI
-
IAD
8h 52m1 stop
Alaska Airlines Logo
7:05 am - 7:40 pm
IAD
-
BOI
14h 35m2 stops
$280Alaska Airlines
Tue, Feb 24 - Wed, Mar 4
Southwest Logo
5:30 am - 5:05 pm
BOI
-
IAD
9h 35m1 stop
Southwest Logo
5:55 pm - 11:30 pm
IAD
-
BOI
7h 35m1 stop
$281Southwest
Thu, Apr 23 - Mon, Apr 27
Southwest Logo
4:20 pm - 12:25 am
BOI
-
BWI
6h 05m1 stop
Southwest Logo
9:40 am - 6:20 pm
BWI
-
BOI
10h 40m1 stop
$281Southwest
Thu, Apr 23 - Mon, Apr 27

Delta flights from Boise to Washington, D.C.

Our best Delta deals on Boise to Washington, D.C. flight tickets
Delta
Feb 24
BOI7:30 amBoise Air Term. Gowen Fld
14h 17m
2 stops
BWI11:47 pmBaltimore/Washington
Mar 4
BWI11:45 amBaltimore/Washington
11h 10m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$240
Delta
Feb 11
BOI11:20 amBoise Air Term. Gowen Fld
10h 37m
2 stops
IAD11:57 pmWashington, D.C. Dulles Intl
Mar 18
IAD7:00 amWashington, D.C. Dulles Intl
8h 05m
1 stop
BOI1:05 pmBoise Air Term. Gowen Fld
$244
Delta
Feb 4
BOI11:20 amBoise Air Term. Gowen Fld
9h 46m
2 stops
IAD11:06 pmWashington, D.C. Dulles Intl
Feb 11
IAD12:40 pmWashington, D.C. Dulles Intl
12h 32m
2 stops
BOI11:12 pmBoise Air Term. Gowen Fld
$250

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

Our best Alaska Airlines deals on Boise to Washington, D.C. flight tickets
Alaska Airlines
Mar 3
BOI6:28 amBoise Air Term. Gowen Fld
9h 18m
1 stop
BWI5:46 pmBaltimore/Washington
Mar 7
BWI6:46 pmBaltimore/Washington
14h 27m
2 stops
BOI7:13 amBoise Air Term. Gowen Fld
$267
Alaska Airlines
Feb 24
BOI6:28 amBoise Air Term. Gowen Fld
8h 52m
1 stop
IAD5:20 pmWashington, D.C. Dulles Intl
Mar 4
IAD7:05 amWashington, D.C. Dulles Intl
14h 35m
2 stops
BOI7:40 pmBoise Air Term. Gowen Fld
$280
Alaska Airlines
Mar 3
BOI6:28 amBoise Air Term. Gowen Fld
9h 18m
1 stop
BWI5:46 pmBaltimore/Washington
Mar 7
BWI6:46 pmBaltimore/Washington
30h 13m
1 stop
BOI10:59 pmBoise Air Term. Gowen Fld
$282

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 8, 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

Fri 1/23

12:07 pm-9:59 pm

1 stop7h 52m

Washington, D.C. Reagan-National

Sun 1/25

2:00 pm-11:12 am

1 stop23h 12m

$141

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sun 2/15

11:56 am-9:59 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Thu 2/19

2:00 pm-11:11 am

1 stop23h 11m

$155

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 2/24

2:40 pm-11:25 pm

1 stop6h 45m

Baltimore/Washington

Wed 3/4

8:00 am-1:38 pm

1 stop7h 38m

$229

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 2/24

5:00 am-3:07 pm

1 stop8h 07m

Baltimore/Washington

Wed 3/4

10:30 am-8:55 pm

2 stops12h 25m

$234

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 2/24

7:30 am-11:47 pm

2 stops14h 17m

Baltimore/Washington

Wed 3/4

11:45 am-8:55 pm

2 stops11h 10m

$240

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 2/11

11:20 am-11:57 pm

2 stops10h 37m

Washington, D.C. Dulles Intl

Wed 3/18

7:00 am-1:05 pm

1 stop8h 05m

$244

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Tue 3/3

6:28 am-5:46 pm

1 stop9h 18m

Baltimore/Washington

Sat 3/7

6:46 pm-7:13 am

2 stops14h 27m

$267

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 2/24

6:28 am-5:20 pm

1 stop8h 52m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-7:40 pm

2 stops14h 35m

$280

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/23

5:30 am-5:05 pm

1 stop9h 35m

Washington, D.C. Dulles Intl

Mon 4/27

5:55 pm-11:30 pm

1 stop7h 35m

$281

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 4/23

4:20 pm-12:25 am

1 stop6h 05m

Baltimore/Washington

Mon 4/27

9:40 am-6:20 pm

1 stop10h 40m

$281

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 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?

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

5h 50m

Direct flights

None
The fastest flight from Boise to Washington, D.C. takes 5h 50m
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 5h 50m.

  • 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
11,661 reviews
Search Alaska Airlines flights
DeltaPriceFrom $249Free CancellationRating
7.9
8,025 reviews
Search Delta flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,250 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
Linthicum Heights
Reston

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