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Cheap flights from Boise to Washington, D.C. from $160

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 11/24. 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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Find the cheapest flights from Boise to Washington, D.C.

Cheap round-trip flights

Delta Logo
2:00 pm - 12:40 amBOI-IAD
8h 40m1 stop
Delta Logo
7:35 am - 4:06 pmIAD-BOI
10h 31m1 stop
$213Delta
Find Deal
Tue, Oct 7 - Tue, Oct 21
Alaska Airlines Logo
8:26 pm - 7:33 amBOI-IAD
9h 07m1 stop
Alaska Airlines Logo
6:25 am - 1:10 pmIAD-BOI
8h 45m1 stop
$246Alaska Airlines
Find Deal
Mon, Oct 6 - Wed, Oct 22
Delta Logo
2:00 pm - 12:40 amBOI-IAD
8h 40m1 stop
Delta Logo
6:00 am - 12:44 pmIAD-BOI
8h 44m1 stop
$266Delta
Find Deal
Thu, Nov 6 - Sun, Nov 9
Hawaiian Airlines Logo
6:28 am - 4:40 pmBOI-IAD
8h 12m1 stop
Hawaiian Airlines Logo
7:43 am - 4:17 pmIAD-BOI
10h 34m1 stop
$284Hawaiian Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
American Airlines Logo
1:33 pm - 10:51 pmBOI-IAD
7h 18m1 stop
American Airlines Logo
10:25 am - 10:22 pmIAD-BOI
13h 57m2 stops
$302American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
American Airlines Logo
1:35 pm - 10:51 pmBOI-IAD
7h 16m1 stop
American Airlines Logo
2:16 pm - 10:32 pmIAD-BOI
10h 16m2 stops
$303American Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Hawaiian Airlines Logo
6:05 pm - 6:23 amBOI-IAD
10h 18m1 stop
Hawaiian Airlines Logo
7:43 am - 3:12 pmIAD-BOI
9h 29m1 stop
$309Hawaiian Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1
United Airlines Logo
2:44 pm - 12:45 amBOI-IAD
8h 01m1 stop
United Airlines Logo
6:30 am - 11:39 amIAD-BOI
7h 09m1 stop
$321United Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
United Airlines Logo
7:05 pm - 5:36 amBOI-IAD
8h 31m1 stop
United Airlines Logo
6:30 am - 11:39 amIAD-BOI
7h 09m1 stop
$323United Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 22
Southwest Logo
8:05 am - 10:10 pmBOI-IAD
12h 05m2 stops
Southwest Logo
5:45 pm - 11:10 pmIAD-BOI
7h 25m1 stop
$354Southwest
Find Deal
Thu, Dec 11 - Tue, Dec 16

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
Oct 7
BOI2:00 pmBoise Air Term. Gowen Fld
8h 40m
1 stop
IAD12:40 amWashington, D.C. Dulles Intl
Oct 21
IAD7:35 amWashington, D.C. Dulles Intl
10h 31m
1 stop
BOI4:06 pmBoise Air Term. Gowen Fld
$213
Find similar
Delta
Nov 6
BOI2:00 pmBoise Air Term. Gowen Fld
8h 40m
1 stop
IAD12:40 amWashington, D.C. Dulles Intl
Nov 9
IAD6:00 amWashington, D.C. Dulles Intl
8h 44m
1 stop
BOI12:44 pmBoise Air Term. Gowen Fld
$266
Find similar
Delta
Nov 12
BOI5:35 amBoise Air Term. Gowen Fld
9h 29m
2 stops
IAD5:04 pmWashington, D.C. Dulles Intl
Nov 15
IAD12:36 pmWashington, D.C. Dulles Intl
8h 44m
2 stops
BOI7:20 pmBoise Air Term. Gowen Fld
$319
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
Oct 6
BOI8:26 pmBoise Air Term. Gowen Fld
9h 07m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
Oct 22
IAD6:25 amWashington, D.C. Dulles Intl
8h 45m
1 stop
BOI1:10 pmBoise Air Term. Gowen Fld
$246
Find similar
Alaska Airlines
Oct 21
BOI7:10 pmBoise Air Term. Gowen Fld
19h 32m
1 stop
IAD4:42 pmWashington, D.C. Dulles Intl
Oct 28
IAD5:40 pmWashington, D.C. Dulles Intl
19h 53m
1 stop
BOI11:33 amBoise Air Term. Gowen Fld
$297
Find similar
Alaska Airlines
Oct 6
BOI8:26 pmBoise Air Term. Gowen Fld
9h 07m
1 stop
IAD7:33 amWashington, D.C. Dulles Intl
Oct 21
IAD5:42 pmWashington, D.C. Dulles Intl
19h 52m
1 stop
BOI11:34 amBoise Air Term. Gowen Fld
$315
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 September 15, 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

Tue 10/7

2:00 pm-12:40 am

1 stop8h 40m

Washington, D.C. Dulles Intl

Tue 10/21

7:35 am-4:06 pm

1 stop10h 31m

$213

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Mon 10/6

8:26 pm-7:33 am

1 stop9h 07m

Washington, D.C. Dulles Intl

Wed 10/22

6:25 am-1:10 pm

1 stop8h 45m

$246

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 11/6

2:00 pm-12:40 am

1 stop8h 40m

Washington, D.C. Dulles Intl

Sun 11/9

6:00 am-12:44 pm

1 stop8h 44m

$266

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 10/28

6:28 am-4:40 pm

1 stop8h 12m

Washington, D.C. Dulles Intl

Tue 11/4

7:43 am-4:17 pm

1 stop10h 34m

$284

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 10/21

1:33 pm-10:51 pm

1 stop7h 18m

Washington, D.C. Dulles Intl

Tue 10/28

10:25 am-10:22 pm

2 stops13h 57m

$302

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 10/28

1:35 pm-10:51 pm

1 stop7h 16m

Washington, D.C. Dulles Intl

Tue 11/4

2:16 pm-10:32 pm

2 stops10h 16m

$303

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 10/29

6:05 pm-6:23 am

1 stop10h 18m

Washington, D.C. Dulles Intl

Sat 11/1

7:43 am-3:12 pm

1 stop9h 29m

$309

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 10/11

2:44 pm-12:45 am

1 stop8h 01m

Washington, D.C. Dulles Intl

Sat 10/18

6:30 am-11:39 am

1 stop7h 09m

$321

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 10/8

7:05 pm-5:36 am

1 stop8h 31m

Washington, D.C. Dulles Intl

Wed 10/22

6:30 am-11:39 am

1 stop7h 09m

$323

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 12/11

8:05 am-10:10 pm

2 stops12h 05m

Washington, D.C. Dulles Intl

Tue 12/16

5:45 pm-11:10 pm

1 stop7h 25m

$354

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, 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 September 2025, prices for Boise to Washington, D.C. Dulles Intl Airport flights are approximately 19% 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.
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  • 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 7h 16m.

  • 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
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $290Free CancellationRating
7.9
7,956 reviews
Search Delta flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights
SouthwestPriceFrom $346Free CancellationRating
8.0
4,245 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
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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