What are the cheapest airlines to fly from Washington, D.C. to Idaho one-way?

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $106. Hawaiian Airlines flights start at $140 while deals on Frontier start at $147 one-way.

What are the most popular routes from Washington, D.C. to Idaho?

When deciding which route to take from Washington, D.C. to Idaho consider Washington, D.C. Dulles Intl - Jackson Hole, Washington, D.C. Reagan-National - Jackson Hole or Baltimore/Washington - Jackson Hole as they are the most popular.

What are the most popular airlines that fly from Washington, D.C. to Idaho?

Alaska Airlines, Delta and United Airlines are the most popular airlines when flying from Washington, D.C. to Idaho.

How far in advance should I book a flight from Washington, D.C. to Idaho?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 46 days in advance, which can save you up to 55% on flights from Washington, D.C. to Idaho compared to booking the week you need them. Waiting 46 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $398. For sooner than that we have options available in the next 3 days from $398.

What is the cheapest month to fly from Washington, D.C. to Idaho?

Our data shows that February tends to be the cheapest month to fly to Idaho from Washington, D.C.. Users have commonly found prices around $489 for the month, but tickets can be as low as $184. Due to multiple factors, prepare for potentially higher prices in December.

Can I find deals for flights from Washington, D.C. to Idaho that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Idaho?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Idaho.

Can I find deals for business class flights from Washington, D.C. to Idaho?

Yes. Cheapflights offers flight deals from Washington, D.C. to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$106+ Flights from Washington, D.C. to Idaho

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington, D.C. to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington, D.C. to Idaho

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$242 (Alaska Airlines)
One-way from	$106 (Mytrip)
Popular in	December
Cheapest in	February
Average price	$558

Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.

Search Deals

From Washington, D.C. (WAS) to Idaho

Search Deals

One-way flight from Washington, D.C. (WAS) to Idaho

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from Washington, D.C. to Idaho

Cheapest flights from Washington, D.C. to Idaho
Explore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

mié. 4/236:30 amIAD - BOI

1 stop9h 17mAlaska Airlines

lun. 4/281:00 pmBOI - IAD

1 stop9h 23mAlaska Airlines

Deal found 3/27

$242

jue. 4/247:06 amBWI - BOI

1 stop10h 39mAlaska Airlines

dom. 4/272:41 pmBOI - BWI

1 stop13h 05mAlaska Airlines

Deal found 3/28

$263

mié. 4/237:25 amIAD - BOI

1 stop10h 35mDelta

dom. 4/278:00 pmBOI - IAD

1 stop8h 20mDelta

Deal found 3/27

$264

mar. 4/225:50 amBWI - BOI

1 stop9h 30mDelta

sáb. 4/263:30 pmBOI - BWI

1 stop6h 29mDelta

Deal found 3/27

$264

mié. 4/235:10 pmDCA - BOI

1 stop8h 59mDelta

dom. 4/2711:30 pmBOI - DCA

1 stop7h 36mDelta

Deal found 3/27

$264

vie. 4/182:12 pmIAD - BOI

2 stops11h 22mAmerican Airlines

sáb. 4/261:23 pmBOI - IAD

1 stop7h 19mAmerican Airlines

Deal found 3/27

$271

mié. 5/287:05 pmBWI - GEG

1 stop7h 49mAlaska Airlines

mar. 6/39:30 amGEG - BWI

1 stop17h 59mAlaska Airlines

Deal found 3/26

$296

lun. 5/55:10 pmDCA - GEG

1 stop9h 09mAlaska Airlines

sáb. 5/177:00 amGEG - DCA

1 stop11h 05mAlaska Airlines

Deal found 3/27

$296

mar. 4/297:13 pmIAD - GEG

1 stop7h 46mAlaska Airlines

mié. 5/148:40 pmGEG - IAD

1 stop8h 03mAlaska Airlines

Deal found 3/27

$296

sáb. 6/76:15 amBWI - GEG

1 stop9h 31mDelta

mié. 6/117:05 pmGEG - BWI

1 stop7h 43mDelta

Deal found 3/26

$297

dom. 8/34:40 pmDCA - GEG

1 stop10h 39mDelta

jue. 8/711:55 amGEG - DCA

1 stop8h 33mDelta

Deal found 3/28

$297

vie. 5/26:52 pmIAD - GEG

1 stop8h 04mDelta

mar. 5/207:00 amGEG - IAD

1 stop8h 03mDelta

Deal found 3/27

$297

Best flights from Washington, D.C. to Idaho
Discover carefully curated flight deals from Washington, D.C. to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated marzo 28, 2025.

mié. 4/236:30 amIAD - BOI

1 stop9h 17mAlaska Airlines

lun. 4/281:00 pmBOI - IAD

1 stop9h 23mAlaska Airlines

Deal found 3/27

$242

mié. 4/237:25 amIAD - BOI

1 stop10h 35mDelta

dom. 4/278:00 pmBOI - IAD

1 stop8h 20mDelta

Deal found 3/27

$264

vie. 4/182:12 pmIAD - BOI

2 stops11h 22mAmerican Airlines

sáb. 4/261:23 pmBOI - IAD

1 stop7h 19mAmerican Airlines

Deal found 3/27

$271

lun. 5/55:38 pmDCA - GEG

1 stop9h 21mHawaiian Airlines

sáb. 5/177:00 amGEG - DCA

1 stop11h 05mHawaiian Airlines

Deal found 3/26

$296

sáb. 5/105:35 pmIAD - BOI

1 stop7h 17mUnited Airlines

sáb. 5/172:00 pmBOI - IAD

1 stop9h 09mUnited Airlines

Deal found 3/27

$301

jue. 6/57:00 amDCA - BOI

1 stop6h 47mFrontier

dom. 6/812:36 pmBOI - DCA

1 stop21h 24mFrontier

Deal found 3/26

$308

jue. 4/246:10 amBWI - GEG

2 stops17h 13mMultiple Airlines

jue. 5/19:35 amGEG - BWI

1 stop17h 11mMultiple Airlines

Deal found 3/27

$337

sáb. 6/72:10 pmBWI - BOI

2 stops11h 35mSouthwest

lun. 6/91:55 pmBOI - BWI

1 stop13h 05mSouthwest

Deal found 3/27

$354

mié. 4/96:31 pmBWI - BOI

3 stops44h 26mSpirit Airlines

lun. 4/141:52 pmBOI - BWI

2 stops26h 01mSpirit Airlines

Deal found 3/27

$424

jue. 4/247:06 amBWI - BOI

1 stop10h 39mAlaska Airlines

dom. 4/272:41 pmBOI - BWI

1 stop13h 05mAlaska Airlines

Deal found 3/28

$263

mar. 4/225:50 amBWI - BOI

1 stop9h 30mDelta

sáb. 4/263:30 pmBOI - BWI

1 stop6h 29mDelta

Deal found 3/27

$264

mié. 4/235:10 pmDCA - BOI

1 stop8h 59mDelta

dom. 4/2711:30 pmBOI - DCA

1 stop7h 36mDelta

Deal found 3/27

$264

Last-minute flights from Washington, D.C. to Idaho
Discover last-minute flight deals from Washington, D.C. to Idaho. Data last updated marzo 28, 2025 and is based on user searches.

sáb. 4/56:30 amIAD - JAC

1 stop7h 00mUnited Airlines

vie. 4/112:21 pmJAC - IAD

1 stop6h 53mUnited Airlines

Deal found 3/27

$636

sáb. 4/56:20 amDCA - JAC

1 stop7h 10mUnited Airlines

vie. 4/117:00 amJAC - DCA

1 stop6h 01mUnited Airlines

Deal found 3/27

$636

sáb. 4/510:59 pmDCA - JAC

2 stops15h 14mAmerican Airlines

vie. 4/1112:53 pmJAC - DCA

1 stop8h 07mAmerican Airlines

Deal found 3/27

$750

sáb. 4/56:15 amBWI - JAC

1 stop7h 15mUnited Airlines

vie. 4/112:21 pmJAC - BWI

1 stop7h 09mUnited Airlines

Deal found 3/27

$756

sáb. 4/57:15 amBWI - JAC

1 stop7h 06mDelta

vie. 4/111:25 pmJAC - BWI

2 stops9h 10mDelta

Deal found 3/27

$761

sáb. 4/57:35 amIAD - JAC

1 stop6h 46mDelta

vie. 4/111:25 pmJAC - IAD

2 stops9h 03mDelta

Deal found 3/27

$782

lun. 4/76:30 amBWI - BOI

1 stop8h 06mSpirit Airlines

vie. 4/111:52 pmBOI - BWI

1 stop13h 54mSpirit Airlines

Deal found 3/27

$508

lun. 4/77:00 amIAD - BOI

2 stops11h 02mAlaska Airlines

vie. 4/116:37 amBOI - IAD

1 stop9h 22mAlaska Airlines

Deal found 3/27

$630

lun. 4/76:15 amBWI - BOI

2 stops12h 33mAmerican Airlines

vie. 4/111:23 pmBOI - BWI

1 stop7h 13mAmerican Airlines

Deal found 3/27

$675

lun. 4/76:22 pmIAD - GEG

1 stop8h 37mHawaiian Airlines

lun. 4/146:04 pmGEG - IAD

1 stop8h 36mHawaiian Airlines

Deal found 3/27

$721

lun. 4/77:31 amIAD - GEG

2 stops16h 30mAlaska Airlines

lun. 4/147:00 amGEG - IAD

1 stop7h 59mAlaska Airlines

Deal found 3/27

$739

lun. 4/72:12 pmIAD - BOI

2 stops11h 22mAmerican Airlines

vie. 4/115:18 pmBOI - IAD

2 stops13h 20mAmerican Airlines

Deal found 3/27

$747

One-way flights from Washington, D.C. to Idaho
Search for one-way flight options from Washington, D.C. to Idaho. Find affordable one-way fares based on user searches. Data last updated marzo 28, 2025.

jue. 4/249:39 pmBWI - BOI

1 stop17h 18mSpirit Airlines

Deal found 3/27

$106

lun. 5/125:38 pmDCA - GEG

1 stop8h 26mHawaiian Airlines

Deal found 3/27

$140

dom. 5/117:00 amIAD - GEG

1 stop9h 33mHawaiian Airlines

Deal found 3/27

$140

jue. 5/297:00 amDCA - BOI

1 stop6h 51mFrontier

Deal found 3/27

$147

jue. 4/247:25 amIAD - BOI

1 stop8h 15mDelta

Deal found 3/27

$149

sáb. 4/197:05 amBWI - GEG

1 stop8h 02mDelta

Deal found 3/27

$149

jue. 5/293:29 pmBWI - BOI

1 stop8h 31mAmerican Airlines

Deal found 3/27

$149

sáb. 4/197:30 amDCA - GEG

1 stop8h 35mDelta

Deal found 3/27

$149

sáb. 4/197:25 amIAD - GEG

1 stop10h 29mDelta

Deal found 3/27

$149

mar. 8/128:10 amIAD - BOI

1 stop10h 54mHawaiian Airlines

Deal found 3/27

$150

mar. 8/125:43 pmDCA - BOI

1 stop8h 11mHawaiian Airlines

Deal found 3/27

$150

mié. 6/258:15 amIAD - BOI

1 stop9h 44mUnited Airlines

Deal found 3/27

$151

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 4/23

6:30 am-1:47 pm

1 stop9h 17m

Boise Air Term. Gowen Fld

lun. 4/28

1:00 pm-12:23 am

1 stop9h 23m

$242

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

jue. 4/24

7:06 am-3:45 pm

1 stop10h 39m

Boise Air Term. Gowen Fld

dom. 4/27

2:41 pm-5:46 am

1 stop13h 05m

$263

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 4/23

7:25 am-4:00 pm

1 stop10h 35m

Boise Air Term. Gowen Fld

dom. 4/27

8:00 pm-6:20 am

1 stop8h 20m

$264

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 4/22

5:50 am-1:20 pm

1 stop9h 30m

Boise Air Term. Gowen Fld

sáb. 4/26

3:30 pm-11:59 pm

1 stop6h 29m

$264

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mié. 4/23

5:10 pm-12:09 am

1 stop8h 59m

Boise Air Term. Gowen Fld

dom. 4/27

11:30 pm-9:06 am

1 stop7h 36m

$264

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

vie. 4/18

2:12 pm-11:34 pm

2 stops11h 22m

Boise Air Term. Gowen Fld

sáb. 4/26

1:23 pm-10:42 pm

1 stop7h 19m

$271

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

mié. 5/28

7:05 pm-11:54 pm

1 stop7h 49m

Spokane

mar. 6/3

9:30 am-6:29 am

1 stop17h 59m

$296

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

lun. 5/5

5:10 pm-11:19 pm

1 stop9h 09m

Spokane

sáb. 5/17

7:00 am-9:05 pm

1 stop11h 05m

$296

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mar. 4/29

7:13 pm-11:59 pm

1 stop7h 46m

Spokane

mié. 5/14

8:40 pm-7:43 am

1 stop8h 03m

$296

BaltimoreSpokane

BWI - GEG

BWIGEG

Baltimore/Washington

sáb. 6/7

6:15 am-12:46 pm

1 stop9h 31m

Spokane

mié. 6/11

7:05 pm-5:48 am

1 stop7h 43m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 60 results

...

Best time to book a flight from Washington, D.C. to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Idaho

What is the cheapest month to book a flight from Washington, D.C. to Idaho?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Idaho (average of $314). Flying from Washington, D.C. to Idaho in June is currently the most expensive (average of $421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to ID?

When flying from Washington, D.C. to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Idaho by month

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

To help decide which airline to fly from Washington, D.C. to Idaho, see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,798 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,896 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines

7.9

Good

2,336 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. to Idaho one-way?
To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $106. Hawaiian Airlines flights start at $140 while deals on Frontier start at $147 one-way.
What are the most popular routes from Washington, D.C. to Idaho?
When deciding which route to take from Washington, D.C. to Idaho consider Washington, D.C. Dulles Intl - Jackson Hole, Washington, D.C. Reagan-National - Jackson Hole or Baltimore/Washington - Jackson Hole as they are the most popular.
Can I find deals for flights from Washington, D.C. to Idaho that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Idaho?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Idaho.
Can I find deals for business class flights from Washington, D.C. to Idaho?
Yes. Cheapflights offers flight deals from Washington, D.C. to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Idaho?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Idaho (average of $314). Flying from Washington, D.C. to Idaho in June is currently the most expensive (average of $421). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Washington, D.C. to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$180	Average$295	FlexibilityNo cancel fee	On-time65%
Alaska Airlines	Cheapest$230	Average$578	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$230	Average$498	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$274	Average$562	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$298	Average$689	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$334	Average$649	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$106+ Cheap flights from Washington, D.C. (WAS) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Idaho with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to Idaho

Keep the following information in mind while searching for Washington, D.C. to Idaho flight deals. Data was last updated marzo 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to Idaho

Cheapest flights from Washington, D.C. to IdahoExplore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

Explore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Idaho

What is the cheapest month to book a flight from Washington, D.C. to Idaho?

What is the cheapest time of day to fly from WAS to ID?

Find hourly flight availability from Washington, D.C. to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 28, 2025.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated marzo 28, 2025.

To help decide which airline to fly from Washington, D.C. to Idaho, see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Washington, D.C. to Idaho one-way?

What are the most popular routes from Washington, D.C. to Idaho?

Can I find deals for flights from Washington, D.C. to Idaho that include hotel bookings?

How can I find direct flights from Washington, D.C. to Idaho?

Can I find deals for business class flights from Washington, D.C. to Idaho?

What is the cheapest month to book a flight from Washington, D.C. to Idaho?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Washington, D.C. to Idaho

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to Idaho
Explore the most affordable flight options available from Washington, D.C. to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 28, 2025.