What airlines fly to District of Columbia?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to District of Columbia from Idaho according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

How long is the flight from Idaho to District of Columbia?

On average, it takes 6h 13m to fly from Idaho to District of Columbia if you fly out of Twin Falls (the most popular airport in Idaho) and into Washington, D.C. Dulles Intl Airport (the most popular airport in District of Columbia). If you’re flying out of Idaho Falls and into Washington, D.C. Dulles Intl Airport, then the flight time is around 6h 18m.

What is the cheapest airline that flies from Idaho to District of Columbia?

Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from Idaho to District of Columbia

When did momondo last update prices for flights from Idaho to District of Columbia?

Prices for flights from Idaho to District of Columbia are updated daily.

How many operators does momondo search for flights from Idaho to District of Columbia?

The number of operators available for flights from Idaho to District of Columbia is 5 as of October 2025.

How old do you have to be to fly from Idaho to District of Columbia?

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 Idaho to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The required travel and health documents for your District of Columbia 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 District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$105 Cheap Flights from Idaho to District of Columbia in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Idaho to District of Columbia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:33 pm - 9:59 pmBOI-DCA

7h 26m1 stop

1:00 pm - 11:48 amDCA-BOI

24h 48m1 stop

$217Frontier

Find Deal

Thu, Oct 30 - Wed, Nov 5

12:59 pm - 12:05 pmBOI-DCA

21h 06m1 stop

7:00 am - 12:04 pmDCA-BOI

31h 04m1 stop

$225Frontier

Find Deal

Thu, Dec 4 - Wed, Dec 10

10:45 am - 9:21 pmJAC-IAD

8h 36m1 stop

8:25 am - 1:17 pmIAD-JAC

6h 52m1 stop

$280United Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 12

1:06 pm - 11:00 pmJAC-DCA

7h 54m1 stop

6:30 am - 12:16 pmDCA-JAC

7h 46m1 stop

$280American Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 12

1:06 pm - 11:00 pmJAC-DCA

7h 54m1 stop

5:00 am - 12:16 pmDCA-JAC

9h 16m2 stops

$285American Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 12

1:00 pm - 11:33 pmJAC-IAD

8h 33m1 stop

10:05 am - 9:29 pmIAD-JAC

13h 24m2 stops

$289Delta

Find Deal

Wed, Nov 5 - Wed, Nov 12

7:30 am - 6:59 pmJAC-DCA

9h 29m2 stops

12:39 pm - 9:29 pmDCA-JAC

10h 50m2 stops

$294Delta

Find Deal

Wed, Nov 5 - Wed, Nov 12

6:15 am - 3:41 pmBOI-IAD

7h 26m1 stop

3:59 pm - 9:36 pmIAD-BOI

7h 37m1 stop

$317United Airlines

Find Deal

Wed, Nov 12 - Tue, Nov 18

6:10 am - 10:00 pmBOI-IAD

13h 50m2 stops

5:45 pm - 11:10 pmIAD-BOI

7h 25m1 stop

$389Southwest

Find Deal

Thu, Dec 4 - Thu, Dec 11

6:00 am - 3:15 pmBOI-IAD

7h 15m1 stop

5:05 am - 3:25 pmIAD-BOI

12h 20m2 stops

$395Southwest

Find Deal

Sat, Dec 6 - Fri, Dec 12

Alaska Airlines flights from Idaho to District of Columbia

Our best Alaska Airlines deals on Idaho to District of Columbia flight tickets

Alaska Airlines

Nov 27

GEG5:30 amSpokane

9h 04m

1 stop

IAD5:34 pmWashington, D.C. Dulles Intl

Jan 10

IAD6:04 pmWashington, D.C. Dulles Intl

8h 00m

1 stop

GEG11:04 pmSpokane

$298

Find similar

Alaska Airlines

Nov 7

GEG7:39 pmSpokane

18h 01m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

Nov 14

IAD6:13 pmWashington, D.C. Dulles Intl

18h 22m

1 stop

GEG9:35 amSpokane

$306

Find similar

Alaska Airlines

Nov 27

GEG5:30 amSpokane

9h 04m

1 stop

IAD5:34 pmWashington, D.C. Dulles Intl

Jan 12

IAD6:04 pmWashington, D.C. Dulles Intl

8h 00m

1 stop

GEG11:04 pmSpokane

$315

Find similar

Southwest flights from Idaho to District of Columbia

Our best Southwest deals on Idaho to District of Columbia flight tickets

Southwest

Dec 4

BOI6:10 amBoise Air Term. Gowen Fld

13h 50m

2 stops

IAD10:00 pmWashington, D.C. Dulles Intl

Dec 11

IAD5:45 pmWashington, D.C. Dulles Intl

7h 25m

1 stop

BOI11:10 pmBoise Air Term. Gowen Fld

$389

Find similar

Southwest

Dec 6

BOI6:00 amBoise Air Term. Gowen Fld

7h 15m

1 stop

IAD3:15 pmWashington, D.C. Dulles Intl

Dec 12

IAD5:05 amWashington, D.C. Dulles Intl

12h 20m

2 stops

BOI3:25 pmBoise Air Term. Gowen Fld

$395

Find similar

Southwest

Jan 12

GEG7:05 amSpokane

11h 50m

2 stops

IAD9:55 pmWashington, D.C. Dulles Intl

Jan 19

IAD5:30 amWashington, D.C. Dulles Intl

7h 20m

1 stop

GEG9:50 amSpokane

$406

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 10/30

12:33 pm-9:59 pm

1 stop7h 26m

Washington, D.C. Reagan-National

Wed 11/5

1:00 pm-11:48 am

1 stop24h 48m

$217

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 12/4

12:59 pm-12:05 pm

1 stop21h 06m

Washington, D.C. Reagan-National

Wed 12/10

7:00 am-12:04 pm

1 stop31h 04m

$225

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Wed 11/5

10:45 am-9:21 pm

1 stop8h 36m

Washington, D.C. Dulles Intl

Wed 11/12

8:25 am-1:17 pm

1 stop6h 52m

$280

JacksonWashington, D.C.

JAC - DCA

JACDCA

Jackson Hole

Wed 11/5

1:06 pm-11:00 pm

1 stop7h 54m

Washington, D.C. Reagan-National

Wed 11/12

6:30 am-12:16 pm

1 stop7h 46m

$280

JacksonWashington, D.C.

JAC - DCA

JACDCA

Jackson Hole

Wed 11/5

1:06 pm-11:00 pm

1 stop7h 54m

Washington, D.C. Reagan-National

Wed 11/12

5:00 am-12:16 pm

2 stops9h 16m

$285

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Wed 11/5

1:00 pm-11:33 pm

1 stop8h 33m

Washington, D.C. Dulles Intl

Wed 11/12

10:05 am-9:29 pm

2 stops13h 24m

$289

JacksonWashington, D.C.

JAC - DCA

JACDCA

Jackson Hole

Wed 11/5

7:30 am-6:59 pm

2 stops9h 29m

Washington, D.C. Reagan-National

Wed 11/12

12:39 pm-9:29 pm

2 stops10h 50m

$294

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 11/12

6:15 am-3:41 pm

1 stop7h 26m

Washington, D.C. Dulles Intl

Tue 11/18

3:59 pm-9:36 pm

1 stop7h 37m

$317

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 12/4

6:10 am-10:00 pm

2 stops13h 50m

Washington, D.C. Dulles Intl

Thu 12/11

5:45 pm-11:10 pm

1 stop7h 25m

$389

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 12/6

6:00 am-3:15 pm

1 stop7h 15m

Washington, D.C. Dulles Intl

Fri 12/12

5:05 am-3:25 pm

2 stops12h 20m

$395

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 District of Columbia

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 District of Columbia?

In general, August is the cheapest month to fly from Idaho to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $293. If you don’t want to visit District of Columbia in August, then you should wait until February to fly from Idaho, when ticket prices are also cheap, with an average price of $361.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Saturday when prices can be found for as low as $436. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $551.

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

Flying to District of Columbia from Idaho in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $433 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly at noon, with an average ticket price of $547. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Idaho to District of Columbia flights?

You could potentially save up to 54% on your flight if you consider stops on a Idaho to District of Columbia flight.

Cheap Idaho to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to District of Columbia

Direct flights	None

There are no direct flights from Idaho to District of Columbia. There are no popular flight routes from Idaho to District of Columbia.

Search flight deals

When did momondo last update prices for flights from Idaho to District of Columbia?
Prices for flights from Idaho to District of Columbia are updated daily.
How many operators does momondo search for flights from Idaho to District of Columbia?
The number of operators available for flights from Idaho to District of Columbia is 5 as of October 2025.
How old do you have to be to fly from Idaho to District of Columbia?
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 Idaho to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The required travel and health documents for your District of Columbia 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 District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to District of Columbia

Compare and see reviews for airlines that fly from Idaho to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $141	Free Cancellation	Rating 8.0 11,050 reviews	Search Alaska Airlines flights
Delta	PriceFrom $249	Free Cancellation	Rating 7.9 7,969 reviews	Search Delta flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 8,968 reviews	Search United Airlines flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.2 11,043 reviews	Search American Airlines flights
Southwest	PriceFrom $351	Free Cancellation	Rating 8.0 4,237 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to District of Columbia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to District of Columbia. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho to District of Columbia with flexible booking policies on momondo?

All flight searches from Idaho to District of Columbia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho to District of Columbia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to District of Columbia from Idaho.

I’m not ready to book a flight from Idaho to District of Columbia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to District of Columbia 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.

An easier way to manage your District of Columbia 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 11/8

Sat 11/15

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to District of Columbia

Cheap flights from Idaho to District of Columbia 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 District of Columbia departing on 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Idaho to District of Columbia

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Alaska Airlines flights from Idaho to District of Columbia

Our best Alaska Airlines deals on Idaho to District of Columbia flight tickets

Southwest flights from Idaho to District of Columbia

Our best Southwest deals on Idaho to District of Columbia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to District of Columbia that are best for you.

See travel insights to District of Columbia from

How to get the cheapest flight ticket from Idaho to District of Columbia

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 District of Columbia?

What is the cheapest day to depart on your flight to District of Columbia?

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

Can stopping save me money on Idaho to District of Columbia flights?

You could potentially save up to 54% on your flight if you consider stops on a Idaho to District of Columbia flight.

What is the cheapest airline that flies from Idaho to District of Columbia?

Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from Idaho to District of Columbia

What airlines fly to District of Columbia?

How long is the flight from Idaho to District of Columbia?

Cheap Idaho to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to District of Columbia

Direct flights

When did momondo last update prices for flights from Idaho to District of Columbia?

How many operators does momondo search for flights from Idaho to District of Columbia?

How old do you have to be to fly from Idaho to District of Columbia?

What documentation or ID do you need to fly to District of Columbia?

Best airlines flying from Idaho to District of Columbia

Compare and see reviews for airlines that fly from Idaho to District of Columbia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to District of Columbia?

Can I find flights from Idaho to District of Columbia with flexible booking policies on momondo?

How can momondo help me find flights from Idaho to District of Columbia?

I’m not ready to book a flight from Idaho to District of Columbia right now. Can momondo alert me if prices change?

An easier way to manage your District of Columbia 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 District of Columbia

Popular cities in District of Columbia

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