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Cheap flights from Boise to Washington, D.C. from $116

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 12/4. 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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Hawaiian Airlines Logo
8:26 pm - 4:36 pmBOI-IAD
18h 10m1 stop
Hawaiian Airlines Logo
7:34 am - 3:26 pmIAD-BOI
9h 52m1 stop
$282Hawaiian Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Delta Logo
11:44 am - 11:27 pmBOI-IAD
9h 43m1 stop
Delta Logo
7:15 am - 4:02 pmIAD-BOI
10h 47m1 stop
$287Delta
Find Deal
Wed, Dec 3 - Wed, Dec 10
Delta Logo
1:54 pm - 11:27 pmBOI-IAD
7h 33m1 stop
Delta Logo
12:30 pm - 12:04 amIAD-BOI
13h 34m2 stops
$292Delta
Find Deal
Fri, Dec 12 - Mon, Dec 15
Delta Logo
7:45 pm - 10:26 amBOI-IAD
12h 41m2 stops
Delta Logo
11:06 am - 10:16 pmIAD-BOI
13h 10m2 stops
$298Delta
Find Deal
Fri, Dec 12 - Mon, Dec 15
Alaska Airlines Logo
12:19 pm - 4:36 pmBOI-IAD
26h 17m1 stop
Alaska Airlines Logo
6:30 pm - 3:26 pmIAD-BOI
22h 56m1 stop
$305Alaska Airlines
Find Deal
Wed, Dec 10 - Fri, Dec 12
Delta Logo
1:45 pm - 11:10 pmBOI-IAD
7h 25m1 stop
Delta Logo
7:05 am - 6:28 pmIAD-BOI
13h 23m2 stops
$311Delta
Find Deal
Fri, Jan 16 - Tue, Jan 20
Alaska Airlines Logo
5:59 pm - 6:06 amBOI-IAD
10h 07m1 stop
Alaska Airlines Logo
7:34 am - 10:34 amIAD-BOI
29h 00m1 stop
$344Alaska Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
American Airlines Logo
1:25 pm - 10:59 pmBOI-IAD
7h 34m1 stop
American Airlines Logo
2:16 pm - 10:23 pmIAD-BOI
10h 07m2 stops
$361American Airlines
Find Deal
Wed, Dec 3 - Fri, Dec 5
United Airlines Logo
12:29 pm - 9:05 pmBOI-IAD
6h 36m1 stop
United Airlines Logo
5:15 pm - 11:05 pmIAD-BOI
7h 50m1 stop
$420United Airlines
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Tue, Apr 21 - Sun, Apr 26
United Airlines Logo
5:00 am - 3:34 pmBOI-IAD
8h 34m1 stop
United Airlines Logo
5:20 pm - 10:40 pmIAD-BOI
7h 20m1 stop
$459United Airlines
Find Deal
Fri, Dec 19 - Wed, Dec 24

Delta flights from Boise to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Boise to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Dec 3
BOI11:44 amBoise Air Term. Gowen Fld
9h 43m
1 stop
IAD11:27 pmWashington, D.C. Dulles Intl
Dec 10
IAD7:15 amWashington, D.C. Dulles Intl
10h 47m
1 stop
BOI4:02 pmBoise Air Term. Gowen Fld
$287
Find similar
Delta
Dec 12
BOI1:54 pmBoise Air Term. Gowen Fld
7h 33m
1 stop
IAD11:27 pmWashington, D.C. Dulles Intl
Dec 15
IAD12:30 pmWashington, D.C. Dulles Intl
13h 34m
2 stops
BOI12:04 amBoise Air Term. Gowen Fld
$292
Find similar
Delta
Dec 12
BOI7:45 pmBoise Air Term. Gowen Fld
12h 41m
2 stops
IAD10:26 amWashington, D.C. Dulles Intl
Dec 15
IAD11:06 amWashington, D.C. Dulles Intl
13h 10m
2 stops
BOI10:16 pmBoise Air Term. Gowen Fld
$298
Find similar

Alaska Airlines flights from Boise to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on Boise to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Dec 10
BOI12:19 pmBoise Air Term. Gowen Fld
26h 17m
1 stop
IAD4:36 pmWashington, D.C. Dulles Intl
Dec 12
IAD6:30 pmWashington, D.C. Dulles Intl
22h 56m
1 stop
BOI3:26 pmBoise Air Term. Gowen Fld
$305
Find similar
Alaska Airlines
Dec 12
BOI5:59 pmBoise Air Term. Gowen Fld
10h 07m
1 stop
IAD6:06 amWashington, D.C. Dulles Intl
Dec 15
IAD7:34 amWashington, D.C. Dulles Intl
29h 00m
1 stop
BOI10:34 amBoise Air Term. Gowen Fld
$344
Find similar
Alaska Airlines
Dec 17
BOI7:00 amBoise Air Term. Gowen Fld
8h 30m
1 stop
IAD5:30 pmWashington, D.C. Dulles Intl
Jan 1
IAD7:33 amWashington, D.C. Dulles Intl
10h 33m
1 stop
BOI4:06 pmBoise Air Term. Gowen Fld
$355
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Washington, D.C. Dulles Intl Airport 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 6, 2025.
Use the filters below to find and compare flights from Boise to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 12/3

8:26 pm-4:36 pm

1 stop18h 10m

Washington, D.C. Dulles Intl

Wed 12/10

7:34 am-3:26 pm

1 stop9h 52m

$282

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 12/3

11:44 am-11:27 pm

1 stop9h 43m

Washington, D.C. Dulles Intl

Wed 12/10

7:15 am-4:02 pm

1 stop10h 47m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 12/12

1:54 pm-11:27 pm

1 stop7h 33m

Washington, D.C. Dulles Intl

Mon 12/15

12:30 pm-12:04 am

2 stops13h 34m

$292

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 12/12

7:45 pm-10:26 am

2 stops12h 41m

Washington, D.C. Dulles Intl

Mon 12/15

11:06 am-10:16 pm

2 stops13h 10m

$298

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 12/10

12:19 pm-4:36 pm

1 stop26h 17m

Washington, D.C. Dulles Intl

Fri 12/12

6:30 pm-3:26 pm

1 stop22h 56m

$305

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 1/16

1:45 pm-11:10 pm

1 stop7h 25m

Washington, D.C. Dulles Intl

Tue 1/20

7:05 am-6:28 pm

2 stops13h 23m

$311

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 12/12

5:59 pm-6:06 am

1 stop10h 07m

Washington, D.C. Dulles Intl

Mon 12/15

7:34 am-10:34 am

1 stop29h 00m

$344

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 12/3

1:25 pm-10:59 pm

1 stop7h 34m

Washington, D.C. Dulles Intl

Fri 12/5

2:16 pm-10:23 pm

2 stops10h 07m

$361

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 4/21

12:29 pm-9:05 pm

1 stop6h 36m

Washington, D.C. Dulles Intl

Sun 4/26

5:15 pm-11:05 pm

1 stop7h 50m

$420

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 12/19

5:00 am-3:34 pm

1 stop8h 34m

Washington, D.C. Dulles Intl

Wed 12/24

5:20 pm-10:40 pm

1 stop7h 20m

$459

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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. Dulles Intl Airport

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. Dulles Intl Airport?

In general, February is the cheapest month to fly from Boise to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $318. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $365.

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

Our data shows that Saturday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $482. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Washington, D.C. Dulles Intl Airport for around $648.

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

Flying to Washington, D.C. Dulles Intl Airport from Boise in the evening is the least expensive time of day to depart. momondo users have found prices as low as $466 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $537 on average. Flights to Washington, D.C. Dulles Intl Airport from Boise in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

As of November 2025, prices for Boise to Washington, D.C. Dulles Intl Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Boise to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport (BOI to IAD) flight deals and tips

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

Direct flights

None
There are no direct flights from Boise to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Boise to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Boise Air Term. Gowen Fld to Washington, D.C. Dulles Intl by plane?

    A flight from Boise Air Term. Gowen Fld to Washington, D.C. Dulles Intl will travel around 2017.8 mi. In terms of flight time, this usually takes a little over 6h 36m.

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

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

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

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

    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. Dulles Intl Airport.

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

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Boise to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Boise to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $141Free CancellationRating
8.0
11,241 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,003 reviews
Search United Airlines flights
DeltaPriceFrom $290Free CancellationRating
7.9
8,001 reviews
Search Delta flights
SouthwestPriceFrom $389Free CancellationRating
8.0
4,240 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
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie

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?

momondo does allow users to show only those flights to Washington, D.C. from Boise which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Boise and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Boise to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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