How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Flight times from Idaho to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Boise and flying into Baltimore (one of the most popular routes), then the duration is 5h 57m on average. Another popular route from Idaho to Washington, D.C. Dulles Intl Airport is flying from Hailey to Baltimore, which will take roughly 6h 52m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Idaho according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

How many flights depart from Idaho to Washington, D.C. Dulles Intl Airport on average per week?

As of August 2025, there are 6 flights per week flying from Idaho to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

What is the cheapest airline that flies from Idaho to Washington, D.C. Dulles Intl?

Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Idaho to Washington, D.C. Dulles Intl

How many operators does momondo search for flights from Idaho to Washington, D.C. Dulles Intl Airport?

The number of operators available for flights from Idaho to Washington, D.C. Dulles Intl Airport is 4 as of August 2025.

How old do you have to be to fly from Idaho to Washington, D.C. Dulles Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C. Dulles Intl Airport.

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

The required travel and health documents for your Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$99 Cheap Flights from Idaho to Washington, D.C. Dulles Intl Airport in 2025

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Find the cheapest flights from Idaho to Washington, D.C.

Round-trip

One-way

Last minute

Cheap round-trip flights

5:30 am - 3:00 pmGEG-IAD

6h 30m1 stop

5:05 pm - 9:00 pmIAD-GEG

6h 55m1 stop

$198Southwest

Find Deal

sáb., sep. 6 - sáb., sep. 13

8:46 pm - 7:33 amBOI-IAD

8h 47m1 stop

9:00 am - 5:18 pmIAD-BOI

10h 18m1 stop

$210Hawaiian Airlines

Find Deal

sáb., sep. 13 - mié., sep. 17

7:45 pm - 6:01 amBOI-IAD

8h 16m1 stop

7:35 am - 4:06 pmIAD-BOI

10h 31m1 stop

$211Delta

Find Deal

jue., oct. 2 - mié., oct. 15

6:00 am - 4:47 pmGEG-IAD

7h 47m1 stop

6:25 am - 11:45 amIAD-GEG

8h 20m1 stop

$211American Airlines

Find Deal

sáb., sep. 20 - sáb., sep. 27

7:45 pm - 11:18 amBOI-IAD

13h 33m2 stops

7:35 am - 4:06 pmIAD-BOI

10h 31m1 stop

$216Delta

Find Deal

jue., oct. 2 - mié., oct. 15

1:35 pm - 12:23 amBOI-IAD

8h 48m1 stop

7:43 am - 4:17 pmIAD-BOI

10h 34m1 stop

$242Alaska Airlines

Find Deal

mié., oct. 22 - mié., oct. 29

8:18 pm - 4:52 pmBOI-IAD

18h 34m1 stop

6:09 pm - 12:08 amIAD-BOI

7h 59m1 stop

$253Alaska Airlines

Find Deal

mar., sep. 16 - vie., sep. 19

2:45 pm - 12:44 amBOI-IAD

7h 59m1 stop

7:00 am - 1:30 pmIAD-BOI

8h 30m1 stop

$265United Airlines

Find Deal

lun., ago. 25 - dom., sep. 7

2:13 pm - 12:30 amBOI-IAD

8h 17m1 stop

6:35 am - 11:31 amIAD-BOI

6h 56m1 stop

$272United Airlines

Find Deal

mar., sep. 2 - jue., sep. 4

7:44 am - 4:50 pmJAC-IAD

7h 06m1 stop

6:25 am - 2:37 pmIAD-JAC

10h 12m1 stop

$289American Airlines

Find Deal

jue., sep. 25 - lun., sep. 29

Hawaiian Airlines flights from Idaho to Washington, D.C. Dulles Intl Airport

Our best Hawaiian Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

Hawaiian Airlines

Sep 13

BOI8:46 pmBoise Air Term. Gowen Fld

8h 47m

1 stop

IAD7:33 amWashington, D.C. Dulles Intl

Sep 17

IAD9:00 amWashington, D.C. Dulles Intl

10h 18m

1 stop

BOI5:18 pmBoise Air Term. Gowen Fld

$210

Find similar

Hawaiian Airlines

Sep 9

GEG8:51 pmSpokane

7h 42m

1 stop

IAD7:33 amWashington, D.C. Dulles Intl

Sep 11

IAD6:09 pmWashington, D.C. Dulles Intl

9h 10m

1 stop

GEG12:19 amSpokane

$218

Find similar

Hawaiian Airlines

Sep 18

BOI7:17 pmBoise Air Term. Gowen Fld

10h 16m

1 stop

IAD7:33 amWashington, D.C. Dulles Intl

Sep 24

IAD7:00 amWashington, D.C. Dulles Intl

8h 48m

1 stop

BOI1:48 pmBoise Air Term. Gowen Fld

$226

Find similar

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

Our best Delta deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

Delta

Oct 2

BOI7:45 pmBoise Air Term. Gowen Fld

8h 16m

1 stop

IAD6:01 amWashington, D.C. Dulles Intl

Oct 15

IAD7:35 amWashington, D.C. Dulles Intl

10h 31m

1 stop

BOI4:06 pmBoise Air Term. Gowen Fld

$211

Find similar

Delta

Oct 2

BOI7:45 pmBoise Air Term. Gowen Fld

13h 33m

2 stops

IAD11:18 amWashington, D.C. Dulles Intl

Oct 15

IAD7:35 amWashington, D.C. Dulles Intl

10h 31m

1 stop

BOI4:06 pmBoise Air Term. Gowen Fld

$216

Find similar

Delta

Oct 29

BOI9:00 amBoise Air Term. Gowen Fld

12h 30m

2 stops

IAD11:30 pmWashington, D.C. Dulles Intl

Nov 1

IAD9:00 amWashington, D.C. Dulles Intl

12h 07m

2 stops

BOI7:07 pmBoise Air Term. Gowen Fld

$221

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

sáb. 9/6

5:30 am-3:00 pm

1 stop6h 30m

Washington, D.C. Dulles Intl

sáb. 9/13

5:05 pm-9:00 pm

1 stop6h 55m

$198

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

sáb. 9/13

8:46 pm-7:33 am

1 stop8h 47m

Washington, D.C. Dulles Intl

mié. 9/17

9:00 am-5:18 pm

1 stop10h 18m

$210

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

jue. 10/2

7:45 pm-6:01 am

1 stop8h 16m

Washington, D.C. Dulles Intl

mié. 10/15

7:35 am-4:06 pm

1 stop10h 31m

$211

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

sáb. 9/20

6:00 am-4:47 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

sáb. 9/27

6:25 am-11:45 am

1 stop8h 20m

$211

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

jue. 10/2

7:45 pm-11:18 am

2 stops13h 33m

Washington, D.C. Dulles Intl

mié. 10/15

7:35 am-4:06 pm

1 stop10h 31m

$216

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

mié. 10/22

1:35 pm-12:23 am

1 stop8h 48m

Washington, D.C. Dulles Intl

mié. 10/29

7:43 am-4:17 pm

1 stop10h 34m

$242

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

mar. 9/16

8:18 pm-4:52 pm

1 stop18h 34m

Washington, D.C. Dulles Intl

vie. 9/19

6:09 pm-12:08 am

1 stop7h 59m

$253

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

lun. 8/25

2:45 pm-12:44 am

1 stop7h 59m

Washington, D.C. Dulles Intl

dom. 9/7

7:00 am-1:30 pm

1 stop8h 30m

$265

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

mar. 9/2

2:13 pm-12:30 am

1 stop8h 17m

Washington, D.C. Dulles Intl

jue. 9/4

6:35 am-11:31 am

1 stop6h 56m

$272

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

jue. 9/25

7:44 am-4:50 pm

1 stop7h 06m

Washington, D.C. Dulles Intl

lun. 9/29

6:25 am-2:37 pm

1 stop10h 12m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho 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

Prices

Airlines

Other information

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Idaho 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 $316. 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 Idaho 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 Idaho 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 Idaho in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Idaho to Washington, D.C. Dulles Intl Airport flight deals and tips

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

Best Price Found	$99
Fastest flight time	6h 00m
Direct flights	None

The best one-way flight to Washington, D.C. Dulles Intl Airport from Idaho in the past 72 hours is $99. The best round-trip flight deal from Idaho to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $198.

The fastest flight from Idaho to Washington, D.C. Dulles Intl Airport takes 6h 00m

There are no direct flights from Idaho to Washington, D.C. Dulles Intl Airport. Popular non-direct routes for this connection are Boise Air Term. Gowen Fld Airport - Washington, D.C. Dulles Intl Airport, Jackson Hole Airport - Washington, D.C. Dulles Intl Airport and Spokane Airport - Washington, D.C. Dulles Intl Airport.

Search flight deals

When did momondo last update prices for flights from Idaho to Washington, D.C. Dulles Intl Airport?
Prices for flights from Idaho to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Idaho to Washington, D.C. Dulles Intl Airport?
The number of operators available for flights from Idaho to Washington, D.C. Dulles Intl Airport is 4 as of August 2025.
How old do you have to be to fly from Idaho to Washington, D.C. Dulles Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The required travel and health documents for your Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $141	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $300	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Delta	PriceFrom $300	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights
Southwest	PriceFrom $346	Free Cancellation	Rating 8.0 4,247 reviews	Search Southwest flights

Alexandria

Gettysburg

Arlington

National Harbor

Winchester

Woodbridge

Laurel

Silver Spring

Tysons

Waldorf

Fredericksburg

Harpers Ferry

Colonial Beach

Manassas

Rockville

Towson

Gaithersburg

Fairfax

Reston

Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Washington, D.C.?

Finding the right flight to Washington, D.C. from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Idaho to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

Yes momondo offers price alerts on flights to Washington, D.C. from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Idaho to Washington, D.C. from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Washington, D.C. departing on 9/20. 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 Idaho to Washington, D.C.

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Hawaiian Airlines flights from Idaho to Washington, D.C. Dulles Intl Airport

Our best Hawaiian Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

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

Our best Delta deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to Washington, D.C. Dulles Intl Airport that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Idaho 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?

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

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

What is the cheapest airline that flies from Idaho to Washington, D.C. Dulles Intl?

Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Idaho to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

How many flights depart from Idaho to Washington, D.C. Dulles Intl Airport on average per week?

As of August 2025, there are 6 flights per week flying from Idaho to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Cheap Idaho to Washington, D.C. Dulles Intl Airport flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Idaho to Washington, D.C. Dulles Intl Airport?

How many operators does momondo search for flights from Idaho to Washington, D.C. Dulles Intl Airport?

How old do you have to be to fly from Idaho to Washington, D.C. Dulles Intl Airport?

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

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

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Dulles Intl Airport with momondo

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Washington, D.C.?

Can I find flights from Idaho to Washington, D.C. with flexible booking policies on momondo?

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

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

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington, D.C.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo