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Cheap flights from Boise to Washington, D.C. from $82

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 1/26. 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
12:07 pm - 4:59 pmBOI-DCA
26h 52m1 stop
Frontier Logo
2:00 pm - 11:12 amDCA-BOI
23h 12m1 stop
$177Frontier
Find Deal
Mon, Jan 26 - Thu, Jan 29
Frontier Logo
12:44 pm - 1:06 pmBOI-DCA
22h 22m1 stop
Frontier Logo
1:00 pm - 11:43 amDCA-BOI
24h 43m1 stop
$216Frontier
Find Deal
Sun, Dec 14 - Wed, Dec 17
Delta Logo
9:15 am - 11:10 pmBOI-IAD
11h 55m1 stop
Delta Logo
7:30 am - 8:12 pmIAD-BOI
14h 42m1 stop
$227Delta
Find Deal
Thu, Jan 8 - Mon, Jan 12
Delta Logo
1:40 pm - 3:20 pmBOI-DCA
23h 40m1 stop
Delta Logo
4:44 pm - 1:00 pmDCA-BOI
22h 16m1 stop
$227Delta
Find Deal
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
12:07 pm - 4:59 pmBOI-DCA
26h 52m1 stop
Multiple Airlines Logo
6:00 pm - 9:20 amDCA-BOI
17h 20m2 stops
$229Multiple Airlines
Find Deal
Mon, Jan 26 - Thu, Jan 29
American Airlines Logo
3:18 pm - 11:59 pmBOI-DCA
6h 41m1 stop
American Airlines Logo
7:00 am - 1:08 pmDCA-BOI
8h 08m1 stop
$239American Airlines
Find Deal
Thu, Jan 22 - Sat, Jan 24
Southwest Logo
1:30 pm - 9:55 pmBOI-IAD
6h 25m1 stop
Southwest Logo
7:00 am - 3:15 pmIAD-BOI
10h 15m1 stop
$264Southwest
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Thu, Jan 22 - Sat, Jan 24
Southwest Logo
11:20 am - 11:20 pmBOI-DCA
10h 00m2 stops
Southwest Logo
6:30 am - 3:15 pmDCA-BOI
10h 45m2 stops
$275Southwest
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Thu, Jan 22 - Sat, Jan 24
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
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Sat, Jan 31 - Sat, Jan 31
Alaska Airlines Logo
6:23 am - 6:14 pmBOI-BWI
9h 51m1 stop
Alaska Airlines Logo
7:14 pm - 4:07 pmBWI-BOI
22h 53m2 stops
$330Alaska Airlines
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Sat, Jan 31 - Sat, Jan 31

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

Our best United Airlines deals on Boise to Washington, D.C. flight tickets
United Airlines
Dec 24
BOI2:40 pmBoise Air Term. Gowen Fld
6h 43m
1 stop
IAD11:23 pmWashington, D.C. Dulles Intl
Dec 31
IAD6:20 amWashington, D.C. Dulles Intl
9h 16m
1 stop
BOI1:36 pmBoise Air Term. Gowen Fld
$371
Find similar
United Airlines
May 8
BOI2:11 pmBoise Air Term. Gowen Fld
8h 39m
1 stop
IAD12:50 amWashington, D.C. Dulles Intl
May 27
IAD8:25 amWashington, D.C. Dulles Intl
8h 31m
1 stop
BOI2:56 pmBoise Air Term. Gowen Fld
$391
Find similar
United Airlines
Jan 1
BOI6:15 amBoise Air Term. Gowen Fld
7h 19m
1 stop
IAD3:34 pmWashington, D.C. Dulles Intl
Jan 8
IAD4:10 pmWashington, D.C. Dulles Intl
9h 38m
1 stop
BOI11:48 pmBoise Air Term. Gowen Fld
$432
Find similar

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 16
BOI5:55 pmBoise Air Term. Gowen Fld
20h 31m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 20
IAD6:04 pmWashington, D.C. Dulles Intl
29h 01m
1 stop
BOI9:05 pmBoise Air Term. Gowen Fld
$295
Find similar
Alaska Airlines
Jan 31
BOI6:23 amBoise Air Term. Gowen Fld
9h 51m
1 stop
BWI6:14 pmBaltimore/Washington
Jan 31
BWI7:14 pmBaltimore/Washington
17h 38m
1 stop
BOI10:52 amBoise Air Term. Gowen Fld
$306
Find similar
Alaska Airlines
Jan 31
BOI6:23 amBoise Air Term. Gowen Fld
8h 03m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 31
IAD6:04 pmWashington, D.C. Dulles Intl
18h 48m
1 stop
BOI10:52 amBoise Air Term. Gowen Fld
$320
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 December 2, 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-4:59 pm

1 stop26h 52m

Washington, D.C. Reagan-National

Thu 1/29

2:00 pm-11:12 am

1 stop23h 12m

$177

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sun 12/14

12:44 pm-1:06 pm

1 stop22h 22m

Washington, D.C. Reagan-National

Wed 12/17

1:00 pm-11:43 am

1 stop24h 43m

$216

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 1/8

9:15 am-11:10 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 1/12

7:30 am-8:12 pm

1 stop14h 42m

$227

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 1/8

1:40 pm-3:20 pm

1 stop23h 40m

Washington, D.C. Reagan-National

Mon 1/12

4:44 pm-1:00 pm

1 stop22h 16m

$227

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 1/26

12:07 pm-4:59 pm

1 stop26h 52m

Washington, D.C. Reagan-National

Thu 1/29

6:00 pm-9:20 am

2 stops17h 20m

$229

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 1/22

3:18 pm-11:59 pm

1 stop6h 41m

Washington, D.C. Reagan-National

Sat 1/24

7:00 am-1:08 pm

1 stop8h 08m

$239

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 1/22

1:30 pm-9:55 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Sat 1/24

7:00 am-3:15 pm

1 stop10h 15m

$264

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 1/22

11:20 am-11:20 pm

2 stops10h 00m

Washington, D.C. Reagan-National

Sat 1/24

6:30 am-3:15 pm

2 stops10h 45m

$275

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 1/31

6:23 am-6:14 pm

1 stop9h 51m

Baltimore/Washington

Sat 1/31

7:14 pm-10:52 am

1 stop17h 38m

$306

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 1/31

6:23 am-6:14 pm

1 stop9h 51m

Baltimore/Washington

Sat 1/31

7:14 pm-4:07 pm

2 stops22h 53m

$330

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 $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 December 2025, prices for Boise to Washington, D.C. flights are approximately 51% cheaper 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..
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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 07m.

  • 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
11,388 reviews
Search Alaska Airlines flights
DeltaPriceFrom $249Free CancellationRating
7.9
8,011 reviews
Search Delta flights
American AirlinesPriceFrom $300Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,253 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