How long does it take to fly to Washington, D.C. Reagan-National Airport?

Flight times from Idaho to Washington, D.C. Reagan-National Airport vary, but if you’re flying out of Idaho Falls and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 6h 35m on average. Another popular route from Idaho to Washington, D.C. Reagan-National Airport is flying from Hailey to Washington, D.C. Dulles Intl Airport, which will take roughly 6h 44m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Washington, D.C. Reagan-National Airport?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Idaho according to our data. Delta is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to Washington, D.C. Reagan-National?

American Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Idaho to Washington, D.C. Reagan-National

How many operators does momondo search for flights from Idaho to Washington, D.C. Reagan-National Airport?

There are 5 operators available for flights from Idaho to Washington, D.C. Reagan-National Airport as of April 2026.

How old do you have to be to fly from Idaho to Washington, D.C. Reagan-National Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$105 Cheap Flights from Idaho to Washington, D.C. Reagan-National Airport in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:25 pm - 9:58 pm

BOI

DCA

6h 33m

1 stop

7:00 am - 12:30 pm

DCA

BOI

7h 30m

1 stop

$160Frontier

Thu, May 21 - Sun, May 24

1:25 pm - 9:58 pm

BOI

DCA

6h 33m

1 stop

7:00 am - 12:30 pm

DCA

BOI

7h 30m

1 stop

$185Frontier

Thu, May 21 - Sun, May 24

12:33 pm - 12:59 pm

GEG

DCA

21h 26m

1 stop

7:00 am - 11:38 am

DCA

GEG

7h 38m

1 stop

$192Frontier

Fri, May 22 - Fri, May 29

6:00 am - 3:40 pm

BOI

DCA

7h 40m

1 stop

5:00 pm - 11:56 pm

DCA

BOI

8h 56m

1 stop

$263Delta

Tue, Sep 22 - Tue, Sep 29

3:11 pm - 11:59 pm

BOI

DCA

6h 48m

1 stop

7:35 am - 2:16 pm

DCA

BOI

8h 41m

1 stop

$264American Airlines

Tue, Jun 30 - Tue, Jul 28

6:00 am - 3:40 pm

BOI

DCA

7h 40m

1 stop

3:05 pm - 11:29 pm

DCA

BOI

10h 24m

2 stops

$268Delta

Tue, Sep 22 - Tue, Sep 29

12:10 pm - 11:58 pm

BOI

DCA

9h 48m

1 stop

7:29 am - 1:12 pm

DCA

BOI

7h 43m

1 stop

$272American Airlines

Tue, Sep 22 - Tue, Sep 29

7:01 am - 9:00 pm

GEG

DCA

10h 59m

1 stop

7:00 am - 11:38 am

DCA

GEG

7h 38m

1 stop

$300Multiple Airlines

Wed, Jun 3 - Mon, Jun 8

10:20 am - 9:59 pm

SUN

DCA

9h 39m

1 stop

5:04 pm - 9:38 am

DCA

SUN

18h 34m

1 stop

$419Alaska Airlines

Tue, Oct 6 - Tue, Oct 20

4:03 pm - 4:00 pm

IDA

DCA

21h 57m

1 stop

8:00 am - 3:26 pm

DCA

IDA

9h 26m

1 stop

$530Alaska Airlines

Tue, Jun 2 - Mon, Jun 8

American Airlines flights from Idaho to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets

American Airlines

Sep 19

BOI1:18 pmBoise Air Term. Gowen Fld

7h 36m

1 stop

DCA10:54 pmWashington, D.C. Reagan-National

Sep 22

DCA7:29 amWashington, D.C. Reagan-National

7h 43m

1 stop

BOI1:12 pmBoise Air Term. Gowen Fld

$263

American Airlines

Jun 30

BOI3:11 pmBoise Air Term. Gowen Fld

6h 48m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

Jul 28

DCA7:35 amWashington, D.C. Reagan-National

8h 41m

1 stop

BOI2:16 pmBoise Air Term. Gowen Fld

$264

American Airlines

Sep 22

BOI12:10 pmBoise Air Term. Gowen Fld

9h 48m

1 stop

DCA11:58 pmWashington, D.C. Reagan-National

Sep 29

DCA7:29 amWashington, D.C. Reagan-National

7h 43m

1 stop

BOI1:12 pmBoise Air Term. Gowen Fld

$272

Delta flights from Idaho to Washington, D.C. Reagan-National Airport

Our best Delta deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets

Delta

Sep 22

BOI6:00 amBoise Air Term. Gowen Fld

7h 40m

1 stop

DCA3:40 pmWashington, D.C. Reagan-National

Sep 29

DCA3:05 pmWashington, D.C. Reagan-National

10h 24m

2 stops

BOI11:29 pmBoise Air Term. Gowen Fld

$268

Delta

May 16

GEG5:00 amSpokane

7h 30m

1 stop

DCA3:30 pmWashington, D.C. Reagan-National

May 23

DCA4:40 pmWashington, D.C. Reagan-National

10h 19m

1 stop

GEG11:59 pmSpokane

$273

Delta

May 23

GEG5:00 amSpokane

7h 30m

1 stop

DCA3:30 pmWashington, D.C. Reagan-National

May 26

DCA6:00 amWashington, D.C. Reagan-National

8h 17m

1 stop

GEG11:17 amSpokane

$275

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 5/21

1:25 pm-9:58 pm

1 stop6h 33m

Washington, D.C. Reagan-National

Sun 5/24

7:00 am-12:30 pm

1 stop7h 30m

$160

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 5/21

1:25 pm-9:58 pm

1 stop6h 33m

Washington, D.C. Reagan-National

Sun 5/24

7:00 am-12:30 pm

1 stop7h 30m

$185

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Fri 5/22

12:33 pm-12:59 pm

1 stop21h 26m

Washington, D.C. Reagan-National

Fri 5/29

7:00 am-11:38 am

1 stop7h 38m

$192

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 9/22

6:00 am-3:40 pm

1 stop7h 40m

Washington, D.C. Reagan-National

Tue 9/29

5:00 pm-11:56 pm

1 stop8h 56m

$263

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 6/30

3:11 pm-11:59 pm

1 stop6h 48m

Washington, D.C. Reagan-National

Tue 7/28

7:35 am-2:16 pm

1 stop8h 41m

$264

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 9/22

6:00 am-3:40 pm

1 stop7h 40m

Washington, D.C. Reagan-National

Tue 9/29

3:05 pm-11:29 pm

2 stops10h 24m

$268

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 9/22

12:10 pm-11:58 pm

1 stop9h 48m

Washington, D.C. Reagan-National

Tue 9/29

7:29 am-1:12 pm

1 stop7h 43m

$272

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 6/3

7:01 am-9:00 pm

1 stop10h 59m

Washington, D.C. Reagan-National

Mon 6/8

7:00 am-11:38 am

1 stop7h 38m

$300

HaileyWashington, D.C.

SUN - DCA

SUNDCA

Hailey Sun Valley-Friedman

Tue 10/6

10:20 am-9:59 pm

1 stop9h 39m

Washington, D.C. Reagan-National

Tue 10/20

5:04 pm-9:38 am

1 stop18h 34m

$419

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 6/2

4:03 pm-4:00 pm

1 stop21h 57m

Washington, D.C. Reagan-National

Mon 6/8

8:00 am-3:26 pm

1 stop9h 26m

$530

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. Reagan-National 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

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Other information

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of February is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Idaho, with most prices found around $380. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $410.

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $529 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Idaho for as low as $224 on momondo.

Can stopping save me money on Idaho to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 63% on your flight if you consider stops on a Idaho to Washington, D.C. Reagan-National Airport flight.

Cheap Idaho to Washington, D.C. Reagan-National Airport flight deals and tips

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

Fastest flight time	6h 22m
Direct flights	None

The fastest flight from Idaho to Washington, D.C. Reagan-National Airport takes 6h 22m

There are no direct flights from Idaho to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Idaho to Washington, D.C. Reagan-National Airport.

Search flight deals

Frequently asked questions about flying from Idaho to Washington, D.C. Reagan-National Airport

When did momondo last update prices for flights from Idaho to Washington, D.C. Reagan-National Airport?
Prices for flights from Idaho to Washington, D.C. Reagan-National Airport are updated daily.
How many operators does momondo search for flights from Idaho to Washington, D.C. Reagan-National Airport?
There are 5 operators available for flights from Idaho to Washington, D.C. Reagan-National Airport as of April 2026.
How old do you have to be to fly from Idaho to Washington, D.C. Reagan-National Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Reagan-National Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,405 reviews	Search Delta flights
Alaska Airlines	PriceFrom $300	Free Cancellation	Rating 7.9 12,233 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.1 11,574 reviews	Search American Airlines flights
United Airlines	PriceFrom $327	Free Cancellation	Rating 7.4 9,581 reviews	Search United Airlines flights
Southwest	PriceFrom $355	Free Cancellation	Rating 8.0 4,328 reviews	Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Fredericksburg

Silver Spring

Rockville

Manassas

Tysons

Linthicum Heights

Bethesda

Fairfax

Springfield

College Park

Why use momondo?

Why should I use momondo to find a flight deal from Idaho 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 Idaho.

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.?

Once all potential Idaho to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Idaho 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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Cheap flights from Idaho to Washington, D.C. from $105

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 5/21. 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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American Airlines flights from Idaho to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets

Delta flights from Idaho to Washington, D.C. Reagan-National Airport

Our best Delta deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets

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Use the filters below to find and compare flights from Idaho to Washington, D.C. Reagan-National 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. Reagan-National Airport

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

Can stopping save me money on Idaho to Washington, D.C. Reagan-National Airport flights?

What is the cheapest airline that flies from Idaho to Washington, D.C. Reagan-National?

What airlines fly to Washington, D.C. Reagan-National Airport?

How long does it take to fly to Washington, D.C. Reagan-National Airport?

Cheap Idaho to Washington, D.C. Reagan-National Airport flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Idaho to Washington, D.C. Reagan-National Airport

Best airlines flying from Idaho to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Reagan-National Airport with momondo

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

Why use momondo?

An easier way to manage your Washington, D.C. Reagan-National 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.

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