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Cheap flights from Boise to Washington, D.C. from $79

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 1/9. 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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Cheap round-trip flights

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Frontier Logo
12:54 pm - 1:05 pmBOI-DCA
22h 11m1 stop
Frontier Logo
6:00 pm - 11:59 amDCA-BOI
19h 59m1 stop
$173Frontier
Find Deal
Thu, Feb 19 - Sat, Feb 28
Frontier Logo
12:54 pm - 1:05 pmBOI-DCA
22h 11m1 stop
Frontier Logo
6:00 pm - 11:59 amDCA-BOI
19h 59m1 stop
$212Frontier
Find Deal
Fri, Feb 20 - Sat, Feb 28
Frontier Logo
12:54 pm - 1:05 pmBOI-DCA
22h 11m1 stop
Frontier Logo
6:00 pm - 11:59 amDCA-BOI
19h 59m1 stop
$246Frontier
Find Deal
Thu, Feb 19 - Thu, Feb 26
Delta Logo
9:15 am - 11:26 pmBOI-BWI
12h 11m2 stops
Delta Logo
11:24 am - 9:58 pmBWI-BOI
12h 34m2 stops
$276Delta
Find Deal
Thu, Jan 8 - Sat, Jan 10
Frontier Logo
12:54 pm - 1:05 pmBOI-DCA
22h 11m1 stop
Frontier Logo
6:00 pm - 11:59 amDCA-BOI
19h 59m1 stop
$285Frontier
Find Deal
Fri, Feb 20 - Thu, Feb 26
Delta Logo
1:51 pm - 11:10 pmBOI-IAD
7h 19m1 stop
Delta Logo
7:30 am - 4:15 pmIAD-BOI
10h 45m1 stop
$287Delta
Find Deal
Thu, Feb 19 - Fri, Feb 27
Alaska Airlines Logo
6:23 am - 4:26 pmBOI-IAD
8h 03m1 stop
Alaska Airlines Logo
6:04 pm - 12:54 pmIAD-BOI
20h 50m2 stops
$301Alaska Airlines
Find Deal
Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
6:23 am - 6:14 pmBOI-BWI
9h 51m1 stop
Alaska Airlines Logo
7:14 pm - 10:52 amBWI-BOI
17h 38m1 stop
$306Alaska Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 28
Multiple Airlines Logo
12:44 pm - 9:59 pmBOI-DCA
7h 15m1 stop
Multiple Airlines Logo
8:59 am - 11:55 pmDCA-BOI
16h 56m1 stop
$314Multiple Airlines
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Fri, Dec 12 - Mon, Dec 15
Multiple Airlines Logo
12:44 pm - 1:06 pmBOI-DCA
22h 22m1 stop
Multiple Airlines Logo
2:00 pm - 3:44 pmDCA-BOI
27h 44m2 stops
$341Multiple Airlines
Find Deal
Fri, Dec 12 - Sun, Dec 14

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 23
BOI6:23 amBoise Air Term. Gowen Fld
8h 03m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 26
IAD6:04 pmWashington, D.C. Dulles Intl
20h 50m
2 stops
BOI12:54 pmBoise Air Term. Gowen Fld
$301
Find similar
Alaska Airlines
Jan 14
BOI6:23 amBoise Air Term. Gowen Fld
9h 51m
1 stop
BWI6:14 pmBaltimore/Washington
Jan 28
BWI7:14 pmBaltimore/Washington
17h 38m
1 stop
BOI10:52 amBoise Air Term. Gowen Fld
$306
Find similar
Alaska Airlines
Feb 21
BOI6:28 amBoise Air Term. Gowen Fld
13h 31m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Feb 28
DCA5:00 pmWashington, D.C. Reagan-National
8h 59m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$311
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
Feb 9
BOI10:15 amBoise Air Term. Gowen Fld
9h 11m
1 stop
BWI9:26 pmBaltimore/Washington
Feb 20
BWI8:00 amBaltimore/Washington
14h 55m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$366
Find similar
United Airlines
Feb 9
BOI10:15 amBoise Air Term. Gowen Fld
11h 00m
2 stops
BWI11:15 pmBaltimore/Washington
Feb 20
BWI8:00 amBaltimore/Washington
14h 55m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$371
Find similar
United Airlines
Dec 25
BOI5:00 amBoise Air Term. Gowen Fld
8h 34m
1 stop
IAD3:34 pmWashington, D.C. Dulles Intl
Jan 1
IAD5:20 pmWashington, D.C. Dulles Intl
7h 20m
1 stop
BOI10:40 pmBoise Air Term. Gowen Fld
$406
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 26, 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

Thu 2/19

12:54 pm-1:05 pm

1 stop22h 11m

Washington, D.C. Reagan-National

Sat 2/28

6:00 pm-11:59 am

1 stop19h 59m

$173

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Fri 2/20

12:54 pm-1:05 pm

1 stop22h 11m

Washington, D.C. Reagan-National

Sat 2/28

6:00 pm-11:59 am

1 stop19h 59m

$212

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 2/19

12:54 pm-1:05 pm

1 stop22h 11m

Washington, D.C. Reagan-National

Thu 2/26

6:00 pm-11:59 am

1 stop19h 59m

$246

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 1/8

9:15 am-11:26 pm

2 stops12h 11m

Baltimore/Washington

Sat 1/10

11:24 am-9:58 pm

2 stops12h 34m

$276

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Fri 2/20

12:54 pm-1:05 pm

1 stop22h 11m

Washington, D.C. Reagan-National

Thu 2/26

6:00 pm-11:59 am

1 stop19h 59m

$285

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 2/19

1:51 pm-11:10 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Fri 2/27

7:30 am-4:15 pm

1 stop10h 45m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 1/23

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Mon 1/26

6:04 pm-12:54 pm

2 stops20h 50m

$301

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 1/14

6:23 am-6:14 pm

1 stop9h 51m

Baltimore/Washington

Wed 1/28

7:14 pm-10:52 am

1 stop17h 38m

$306

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-9:59 pm

1 stop7h 15m

Washington, D.C. Reagan-National

Mon 12/15

8:59 am-11:55 pm

1 stop16h 56m

$314

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-1:06 pm

1 stop22h 22m

Washington, D.C. Reagan-National

Sun 12/14

2:00 pm-3:44 pm

2 stops27h 44m

$341

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 $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.

Fastest flight time

6h 33m

Direct flights

None
The fastest flight from Boise to Washington, D.C. takes 6h 33m
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 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
11,363 reviews
Search Alaska Airlines flights
DeltaPriceFrom $249Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,050 reviews
Search United Airlines flights
American AirlinesPriceFrom $300Free CancellationRating
7.2
11,037 reviews
Search American 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
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.

An easier way to manage your Washington, D.C. trip

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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