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Cheap flights from Boise to Washington, D.C. from $119

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 4/29. 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

Enter your travel dates to find the best prices.
Delta Logo
1:51 pm - 11:10 pm
BOI
-
IAD
7h 19m
1 stop
Delta Logo
7:00 am - 4:00 pm
IAD
-
BOI
11h 00m
1 stop
$237Delta
Sat, Mar 7 - Sat, Mar 14
Delta Logo
10:35 am - 12:27 am
BOI
-
IAD
11h 52m
2 stops
Delta Logo
7:00 am - 4:00 pm
IAD
-
BOI
11h 00m
1 stop
$242Delta
Tue, Mar 10 - Sat, Mar 14
Delta Logo
1:52 pm - 11:55 pm
BOI
-
IAD
8h 03m
1 stop
Delta Logo
7:00 am - 1:11 pm
IAD
-
BOI
8h 11m
1 stop
$251Delta
Sat, Apr 25 - Tue, Apr 28
Delta Logo
1:45 pm - 11:49 pm
BOI
-
IAD
8h 04m
1 stop
Delta Logo
6:00 am - 4:00 pm
IAD
-
BOI
12h 00m
2 stops
$256Delta
Wed, Apr 1 - Tue, Apr 7
Alaska Airlines Logo
6:28 am - 5:20 pm
BOI
-
IAD
8h 52m
1 stop
Alaska Airlines Logo
7:05 am - 2:58 pm
IAD
-
BOI
9h 53m
1 stop
$257Alaska Airlines
Tue, Mar 10 - Sat, Mar 14
Delta Logo
5:30 am - 6:33 pm
BOI
-
IAD
11h 03m
2 stops
Delta Logo
7:00 am - 4:00 pm
IAD
-
BOI
11h 00m
1 stop
$262Delta
Tue, Mar 10 - Sat, Mar 14
Delta Logo
2:25 pm - 11:41 pm
BOI
-
IAD
7h 16m
1 stop
Delta Logo
6:00 am - 1:19 pm
IAD
-
BOI
9h 19m
1 stop
$274Delta
Tue, May 19 - Tue, May 26
United Airlines Logo
6:30 am - 3:45 pm
BOI
-
IAD
7h 15m
1 stop
United Airlines Logo
3:15 pm - 10:45 pm
IAD
-
BOI
9h 30m
1 stop
$283United Airlines
Sat, May 9 - Tue, May 19
Delta Logo
1:43 pm - 12:25 am
BOI
-
IAD
8h 42m
1 stop
Delta Logo
7:00 am - 4:00 pm
IAD
-
BOI
11h 00m
1 stop
$293Delta
Sat, Mar 7 - Sat, Mar 14
Delta Logo
5:30 am - 6:33 pm
BOI
-
IAD
11h 03m
2 stops
Delta Logo
7:00 am - 4:00 pm
IAD
-
BOI
11h 00m
1 stop
$295Delta
Tue, Mar 10 - Sat, Mar 14

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

Our best United Airlines deals on Boise to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
May 9
BOI6:30 amBoise Air Term. Gowen Fld
7h 15m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
May 19
IAD3:15 pmWashington, D.C. Dulles Intl
9h 30m
1 stop
BOI10:45 pmBoise Air Term. Gowen Fld
$283
United Airlines
Mar 2
BOI6:55 pmBoise Air Term. Gowen Fld
8h 32m
1 stop
IAD5:27 amWashington, D.C. Dulles Intl
Mar 3
IAD2:12 pmWashington, D.C. Dulles Intl
9h 20m
1 stop
BOI9:32 pmBoise Air Term. Gowen Fld
$310
United Airlines
Mar 5
BOI5:00 amBoise Air Term. Gowen Fld
6h 06m
1 stop
IAD1:06 pmWashington, D.C. Dulles Intl
Mar 12
IAD4:10 pmWashington, D.C. Dulles Intl
9h 47m
1 stop
BOI11:57 pmBoise Air Term. Gowen Fld
$363

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

Our best Southwest deals on Boise to Washington, D.C. Dulles Intl Airport flight tickets
Southwest
Mar 2
BOI5:30 amBoise Air Term. Gowen Fld
9h 30m
2 stops
IAD5:00 pmWashington, D.C. Dulles Intl
Mar 3
IAD5:30 pmWashington, D.C. Dulles Intl
7h 40m
1 stop
BOI11:10 pmBoise Air Term. Gowen Fld
$370
Southwest
Feb 21
BOI1:45 pmBoise Air Term. Gowen Fld
6h 00m
1 stop
IAD9:45 pmWashington, D.C. Dulles Intl
Feb 25
IAD5:30 pmWashington, D.C. Dulles Intl
7h 40m
1 stop
BOI11:10 pmBoise Air Term. Gowen Fld
$625
Southwest
Feb 21
BOI6:20 amBoise Air Term. Gowen Fld
13h 25m
2 stops
IAD9:45 pmWashington, D.C. Dulles Intl
Feb 25
IAD9:05 amWashington, D.C. Dulles Intl
10h 10m
2 stops
BOI5:15 pmBoise Air Term. Gowen Fld
$641

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 February 8, 2026.
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

Sat 3/7

1:51 pm-11:10 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$237

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

10:35 am-12:27 am

2 stops11h 52m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$242

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 4/25

1:52 pm-11:55 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Tue 4/28

7:00 am-1:11 pm

1 stop8h 11m

$251

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 4/1

1:45 pm-11:49 pm

1 stop8h 04m

Washington, D.C. Dulles Intl

Tue 4/7

6:00 am-4:00 pm

2 stops12h 00m

$256

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

6:28 am-5:20 pm

1 stop8h 52m

Washington, D.C. Dulles Intl

Sat 3/14

7:05 am-2:58 pm

1 stop9h 53m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

5:30 am-6:33 pm

2 stops11h 03m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$262

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 5/19

2:25 pm-11:41 pm

1 stop7h 16m

Washington, D.C. Dulles Intl

Tue 5/26

6:00 am-1:19 pm

1 stop9h 19m

$274

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 5/9

6:30 am-3:45 pm

1 stop7h 15m

Washington, D.C. Dulles Intl

Tue 5/19

3:15 pm-10:45 pm

1 stop9h 30m

$283

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 3/7

1:43 pm-12:25 am

1 stop8h 42m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$293

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

5:30 am-6:33 pm

2 stops11h 03m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$295

Flights are sorted by cheapest round-trip flights 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. 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, May 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 $341. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $368.

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

As of February 2026, prices for Boise to Washington, D.C. Dulles Intl Airport flights are approximately 12% more expensive 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

Fastest flight time

6h 00m

Direct flights

None
The fastest flight from Boise to Washington, D.C. Dulles Intl Airport takes 6h 00m
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 00m.

  • 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
11,865 reviews
Search Alaska Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.9
8,174 reviews
Search Delta flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
9,259 reviews
Search United Airlines flights
SouthwestPriceFrom $389Free CancellationRating
8.0
4,281 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
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
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?

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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