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

As of April 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 Wed, with 100% of weekly flights taking off on this day.

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

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

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 46% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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 39m on average. Another popular route from Washington, D.C. to Idaho is flying from Baltimore to Boise, which will take roughly 6h 50m. Keep in mind that layovers or delays could extend your travel time.

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 5 as of April 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.

$108 Cheap Flights from Washington, D.C. to Idaho in 2025

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

Round-trip

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.

1:00 pm - 1:37 pmDCA-BOI

26h 37m1 stop

2:27 pm - 9:59 pmBOI-DCA

29h 32m1 stop

$218Frontier

Find Deal

Wed, May 14 - Sun, May 18

7:00 am - 11:04 amDCA-GEG

7h 04m1 stop

11:48 am - 12:00 pmGEG-DCA

21h 12m1 stop

$219Frontier

Find Deal

Thu, May 29 - Thu, Jun 5

8:00 am - 12:45 pmDCA-GEG

7h 45m1 stop

7:00 am - 9:05 pmGEG-DCA

11h 05m1 stop

$271Alaska Airlines

Find Deal

Tue, Jun 3 - Tue, Jun 10

5:14 pm - 11:47 pmIAD-GEG

9h 33m1 stop

7:26 pm - 7:36 amGEG-IAD

9h 10m1 stop

$271Alaska Airlines

Find Deal

Tue, Jun 3 - Wed, Jun 11

6:15 am - 11:31 amBWI-BOI

7h 16m1 stop

7:00 am - 3:14 pmBOI-BWI

6h 14m1 stop

$287United Airlines

Find Deal

Sat, Sep 20 - Sat, Sep 27

5:30 pm - 10:41 pmBWI-BOI

7h 11m1 stop

5:00 am - 5:19 pmBOI-BWI

10h 19m2 stops

$292United Airlines

Find Deal

Sat, Sep 20 - Sat, Sep 27

7:18 pm - 11:12 pmBWI-GEG

6h 54m1 stop

11:41 am - 11:59 pmGEG-BWI

9h 18m1 stop

$297Delta

Find Deal

Tue, Jul 8 - Tue, Jul 15

7:50 am - 1:17 pmDCA-GEG

8h 27m1 stop

11:41 am - 11:34 pmGEG-DCA

8h 53m1 stop

$297Delta

Find Deal

Tue, Jul 8 - Thu, Jul 24

11:05 am - 10:10 pmBWI-BOI

13h 05m2 stops

6:05 pm - 5:00 amBOI-BWI

8h 55m2 stops

$341Southwest

Find Deal

Sat, Aug 23 - Wed, Aug 27

2:40 pm - 11:20 pmBWI-BOI

10h 40m1 stop

6:05 pm - 5:10 amBOI-BWI

9h 05m1 stop

$342Southwest

Find Deal

Fri, Aug 1 - Tue, Aug 5

Delta flights from Washington, D.C. to Idaho

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

Delta

Jul 8

BWI7:18 pmBaltimore/Washington

6h 54m

1 stop

GEG11:12 pmSpokane

Jul 15

GEG11:41 amSpokane

9h 18m

1 stop

BWI11:59 pmBaltimore/Washington

$297

Find similar

Delta

Jul 9

DCA6:10 amWashington, D.C. Reagan-National

6h 40m

1 stop

BOI10:50 amBoise Air Term. Gowen Fld

Jul 19

BOI1:52 pmBoise Air Term. Gowen Fld

7h 50m

1 stop

DCA11:42 pmWashington, D.C. Reagan-National

$301

Find similar

Delta

Jul 9

BWI5:26 pmBaltimore/Washington

8h 46m

2 stops

GEG11:12 pmSpokane

Jul 16

GEG7:05 pmSpokane

7h 55m

1 stop

BWI6:00 amBaltimore/Washington

$302

Find similar

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

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

Alaska Airlines

Jun 3

DCA8:00 amWashington, D.C. Reagan-National

7h 45m

1 stop

GEG12:45 pmSpokane

Jun 10

GEG7:00 amSpokane

11h 05m

1 stop

DCA9:05 pmWashington, D.C. Reagan-National

$271

Find similar

Alaska Airlines

Jun 2

IAD6:30 amWashington, D.C. Dulles Intl

9h 15m

1 stop

GEG12:45 pmSpokane

Jun 10

GEG5:25 pmSpokane

9h 30m

1 stop

IAD5:55 amWashington, D.C. Dulles Intl

$275

Find similar

Alaska Airlines

Jun 2

IAD6:30 amWashington, D.C. Dulles Intl

7h 23m

1 stop

GEG10:53 amSpokane

Jun 9

GEG1:40 pmSpokane

7h 19m

1 stop

IAD11:59 pmWashington, D.C. Dulles Intl

$279

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, April 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 $304. If you don’t want to visit Idaho in April, then you should wait until February to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $346.

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 20 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $504 when searching 20 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 $337 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	$108
Fastest flight time	6h 05m
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 $108. The best round-trip flight deal from Washington, D.C. to Idaho found on momondo in the last 72 hours is $218.

The fastest flight from Washington, D.C. to Idaho takes 6h 05m

There are no direct flights from Washington, D.C. to Idaho. Popular non-direct routes for this connection are Baltimore/Washington Airport - Boise Air Term. Gowen Fld Airport, Washington, D.C. Reagan-National Airport - Spokane Airport and Washington, D.C. Reagan-National Airport - Boise Air Term. Gowen Fld 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 5 as of April 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
Alaska Airlines	PriceFrom $230	Free Cancellation	Rating 8.0 9,968 reviews	Search Alaska Airlines flights
Delta	PriceFrom $230	Free Cancellation	Rating 8.0 7,934 reviews	Search Delta flights
Southwest	PriceFrom $274	Free Cancellation	Rating 8.0 4,294 reviews	Search Southwest flights
United Airlines	PriceFrom $298	Free Cancellation	Rating 7.4 8,696 reviews	Search United Airlines flights
American Airlines	PriceFrom $334	Free Cancellation	Rating 7.2 10,000 reviews	Search American 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.