How long is the flight from Washington, D.C. to Idaho?

Flight times from Washington, D.C. to Idaho vary, but if you’re flying out of Washington, D.C. and flying into Boise (one of the most popular routes), then the duration is 6h 59m on average. Another popular route from Washington, D.C. to Idaho is flying from Baltimore to Boise, which will take roughly 7h 31m. Keep in mind that layovers or delays could extend your travel time.

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

As of February 2025, 1 flights take off from Washington, D.C. and land in Idaho each week. The most common flight departure day for this route is Sat, with 100% of weekly flights taking off on this day.

What airlines fly to Idaho?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Idaho from Washington, D.C. according to our data. Delta is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 6 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

Delta, American Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Idaho

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

Prices for flights from Washington, D.C. to Idaho were last updated today.

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

The number of operators available for flights from Washington, D.C. to Idaho is 6 as of February 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents you'll need for your trip to Idaho 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 Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$142 Discover Cheap Flights from Washington, D.C. to Idaho in 2025

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

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One-way

Last minute

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.

5:45 am - 12:32 pmBWI-BOI

8h 47m1 stop

1:31 pm - 5:25 amBOI-BWI

13h 54m1 stop

$181Spirit Airlines

Find Deal

Wed, Mar 5 - Wed, Mar 26

5:45 am - 12:32 pmBWI-BOI

8h 47m1 stop

1:31 pm - 5:25 amBOI-BWI

13h 54m1 stop

$183Spirit Airlines

Find Deal

Wed, Mar 5 - Wed, Mar 26

6:09 am - 2:05 pmIAD-BOI

9h 56m1 stop

11:30 pm - 9:19 amBOI-IAD

7h 49m1 stop

$231Delta

Find Deal

Wed, Apr 2 - Sun, Apr 6

6:03 am - 12:46 pmBWI-BOI

8h 43m1 stop

1:23 pm - 10:36 pmBOI-BWI

7h 13m1 stop

$231American Airlines

Find Deal

Tue, Apr 1 - Tue, Apr 8

5:00 am - 12:46 pmDCA-BOI

9h 46m1 stop

1:23 pm - 12:55 amBOI-DCA

9h 32m1 stop

$231American Airlines

Find Deal

Tue, Apr 1 - Tue, Apr 8

6:00 am - 5:04 pmIAD-BOI

13h 04m2 stops

11:30 pm - 9:19 amBOI-IAD

7h 49m1 stop

$236Delta

Find Deal

Wed, Apr 2 - Sun, Apr 6

6:20 am - 12:10 pmDCA-BOI

7h 50m1 stop

10:55 am - 9:30 pmBOI-DCA

8h 35m1 stop

$262United Airlines

Find Deal

Wed, Apr 9 - Sat, Apr 12

4:07 pm - 8:50 pmBWI-GEG

7h 43m1 stop

6:00 am - 5:30 pmGEG-BWI

8h 30m1 stop

$297United Airlines

Find Deal

Tue, Apr 29 - Tue, May 6

6:40 pm - 10:55 pmIAD-GEG

7h 15m1 stop

12:55 pm - 10:35 pmGEG-IAD

6h 40m1 stop

$297Southwest

Find Deal

Tue, Apr 29 - Tue, May 6

2:00 pm - 10:45 pmDCA-BOI

10h 45m2 stops

8:40 am - 8:55 pmBOI-DCA

10h 15m2 stops

$311Southwest

Find Deal

Tue, Apr 1 - Tue, Apr 8

Spirit Airlines flights from Washington, D.C. to Idaho

Our best Spirit Airlines deals on Washington, D.C. to Idaho flight tickets

Spirit Airlines

Mar 5

BWI5:45 amBaltimore/Washington

8h 47m

1 stop

BOI12:32 pmBoise Air Term. Gowen Fld

Mar 26

BOI1:31 pmBoise Air Term. Gowen Fld

13h 54m

1 stop

BWI5:25 amBaltimore/Washington

$181

Find similar

Spirit Airlines

Mar 5

BWI5:45 amBaltimore/Washington

8h 47m

1 stop

BOI12:32 pmBoise Air Term. Gowen Fld

Mar 26

BOI1:31 pmBoise Air Term. Gowen Fld

13h 54m

1 stop

BWI5:25 amBaltimore/Washington

$183

Find similar

Spirit Airlines

Mar 5

BWI5:45 amBaltimore/Washington

8h 47m

1 stop

BOI12:32 pmBoise Air Term. Gowen Fld

Mar 19

BOI1:31 pmBoise Air Term. Gowen Fld

13h 54m

1 stop

BWI5:25 amBaltimore/Washington

$206

Find similar

Delta flights from Washington, D.C. to Idaho

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

Delta

Apr 2

IAD6:09 amWashington, D.C. Dulles Intl

9h 56m

1 stop

BOI2:05 pmBoise Air Term. Gowen Fld

Apr 6

BOI11:30 pmBoise Air Term. Gowen Fld

7h 49m

1 stop

IAD9:19 amWashington, D.C. Dulles Intl

$231

Find similar

Delta

Apr 2

IAD6:00 amWashington, D.C. Dulles Intl

13h 04m

2 stops

BOI5:04 pmBoise Air Term. Gowen Fld

Apr 6

BOI11:30 pmBoise Air Term. Gowen Fld

7h 49m

1 stop

IAD9:19 amWashington, D.C. Dulles Intl

$236

Find similar

Delta

Apr 23

IAD12:11 pmWashington, D.C. Dulles Intl

13h 58m

2 stops

BOI12:09 amBoise Air Term. Gowen Fld

Apr 29

BOI1:00 pmBoise Air Term. Gowen Fld

9h 25m

2 stops

IAD12:25 amWashington, D.C. Dulles Intl

$241

Find similar

How to get the cheapest flight ticket from Washington, D.C. to Idaho

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 Idaho?

In general, February is the cheapest month to fly from Washington, D.C. to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $351. If you don’t want to visit Idaho in February, then you should wait until August to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $411.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $434. On the other hand, Monday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $711.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Washington, D.C. to Idaho at noon for as low as $431. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $671 per ticket.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from Washington, D.C. when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $519 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Washington, D.C. for as low as $378 on momondo.

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

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

Best Price Found	$142
Fastest flight time	6h 20m
Direct flights	None
Airports in Idaho	4 airports

The best one-way flight to Idaho from Washington, D.C. in the past 72 hours is $142. The best round-trip flight deal from Washington, D.C. to Idaho found on momondo in the last 72 hours is $181.

The fastest flight from Washington, D.C. to Idaho takes 6h 20m

There are no direct flights from Washington, D.C. to Idaho. Popular non-direct routes for this connection are Baltimore/Washington Airport - Spokane Airport, Washington, D.C. Reagan-National Airport - Spokane Airport and Washington, D.C. Dulles Intl Airport - Spokane Airport.

There are 4 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC)

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When did momondo last update prices for flights from Washington, D.C. to Idaho?
Prices for flights from Washington, D.C. to Idaho were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Idaho?
The number of operators available for flights from Washington, D.C. to Idaho is 6 as of February 2025.
How old do you have to be to fly from Washington, D.C. to Idaho?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho 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 Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. to Idaho

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $229	Free Cancellation	Rating 6.3 8,006 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $274	Free Cancellation	Rating 8.1 4,385 reviews	Search Southwest flights
Delta	PriceFrom $310	Free Cancellation	Rating 8.0 8,203 reviews	Search Delta flights
American Airlines	PriceFrom $334	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $336	Free Cancellation	Rating 7.4 8,754 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $340	Free Cancellation	Rating 8.0 9,706 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Idaho from Washington, D.C. 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 Idaho quick and easy, saving you time and money.

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

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

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

Once all potential Washington, D.C. to Idaho 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 Washington, D.C. to Idaho right now. Can momondo alert me if prices change?

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