What are the cheapest airlines to fly from District of Columbia to Idaho one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $98. Hawaiian Airlines flights start at $148 while deals on Alaska Airlines start at $148 one-way.

How far in advance should I book a flight from District of Columbia to Idaho?

To save up to 87% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from District of Columbia to Idaho from $350 1-2 weeks out and tickets from $398 for flights departing within the next 72 hours.

What is the cheapest month to fly from District of Columbia to Idaho?

April is one of the best times of the year to fly to Idaho from District of Columbia. Prices for April average $461 per person but you can even find prices for as low as $212. The most expensive prices can be found in the month of December. Opting for a April flight can save you 54% on your journey compared to booking in December

Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?

Yes. In addition to deals on District of Columbia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from District of Columbia to Idaho?

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

Can I find deals for business class flights from District of Columbia to Idaho?

Yes. Cheapflights offers flight deals from District of Columbia 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.

$98+ Flights from District of Columbia to Idaho

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Cheap flight deals from District of Columbia to Idaho

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$228 (Booking.com)
One-way from	$98 (Cheapflightsfares)
Popular in	December
Cheapest in	April
Average price	$300

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 District of Columbia to Idaho

Search Deals

One-way flight from District of Columbia to Idaho

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($76 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from District of Columbia to Idaho

Cheapest flights from District of Columbia to Idaho
Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

jue. 5/157:00 amDCA - BOI

1 stop8h 37mFrontier

dom. 5/182:27 pmBOI - DCA

1 stop19h 40mFrontier

Deal found 4/22

$228

jue. 9/185:00 pmIAD - BOI

1 stop8h 42mAlaska Airlines

sáb. 9/277:00 amBOI - IAD

1 stop10h 07mAlaska Airlines

Deal found 4/22

$277

jue. 8/145:02 pmDCA - GEG

1 stop9h 57mHawaiian Airlines

mar. 8/197:00 amGEG - DCA

1 stop10h 59mHawaiian Airlines

Deal found 4/22

$296

mié. 8/139:00 amIAD - GEG

1 stop10h 06mHawaiian Airlines

mié. 8/207:00 amGEG - IAD

1 stop9h 07mHawaiian Airlines

Deal found 4/22

$296

vie. 8/154:40 pmDCA - GEG

1 stop9h 02mDelta

lun. 8/1810:59 pmGEG - DCA

1 stop7h 14mDelta

Deal found 4/22

$297

dom. 8/106:00 amIAD - GEG

1 stop8h 28mDelta

mar. 8/1912:40 pmGEG - IAD

1 stop7h 35mDelta

Deal found 4/22

$297

mié. 5/218:30 amIAD - BOI

1 stop9h 51mUnited Airlines

mié. 5/282:38 pmBOI - IAD

1 stop6h 12mUnited Airlines

Deal found 4/22

$301

jue. 7/176:00 amDCA - BOI

1 stop8h 31mDelta

mar. 7/2211:30 pmBOI - DCA

1 stop7h 43mDelta

Deal found 4/22

$301

mar. 6/106:00 amIAD - BOI

2 stops9h 53mDelta

sáb. 6/141:00 pmBOI - IAD

1 stop8h 43mDelta

Deal found 4/22

$306

jue. 6/57:00 amDCA - GEG

1 stop7h 03mFrontier

jue. 6/1211:58 amGEG - DCA

1 stop7h 01mFrontier

Deal found 4/22

$321

jue. 9/49:00 amIAD - GEG

1 stop9h 50mAlaska Airlines

lun. 9/88:48 pmGEG - IAD

1 stop7h 44mAlaska Airlines

Deal found 4/22

$323

mié. 7/98:10 amIAD - BOI

1 stop10h 54mHawaiian Airlines

sáb. 7/198:46 pmBOI - IAD

1 stop8h 41mHawaiian Airlines

Deal found 4/22

$329

Best flights from District of Columbia to Idaho
Discover carefully curated flight deals from District of Columbia to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 22, 2025.

jue. 5/157:00 amDCA - BOI

1 stop8h 37mFrontier

dom. 5/182:27 pmBOI - DCA

1 stop19h 40mFrontier

Deal found 4/22

$228

jue. 8/145:02 pmDCA - GEG

1 stop9h 57mHawaiian Airlines

mar. 8/197:00 amGEG - DCA

1 stop10h 59mHawaiian Airlines

Deal found 4/22

$296

mar. 7/83:55 pmDCA - GEG

1 stop9h 01mDelta

mar. 7/2210:59 pmGEG - DCA

1 stop7h 14mDelta

Deal found 4/22

$297

mar. 5/136:30 amIAD - BOI

1 stop9h 17mAlaska Airlines

lun. 5/197:06 pmBOI - IAD

1 stop10h 30mAlaska Airlines

Deal found 4/21

$300

mar. 5/208:20 amIAD - BOI

1 stop7h 17mUnited Airlines

mar. 5/277:07 pmBOI - IAD

1 stop8h 01mUnited Airlines

Deal found 4/22

$317

dom. 7/66:27 amIAD - BOI

1 stop10h 14mAmerican Airlines

sáb. 7/127:00 amBOI - IAD

1 stop8h 38mAmerican Airlines

Deal found 4/21

$330

dom. 7/206:00 amIAD - GEG

1 stop13h 11mMultiple Airlines

jue. 7/247:44 pmGEG - IAD

1 stop8h 43mMultiple Airlines

Deal found 4/21

$332

mié. 8/1312:45 pmDCA - GEG

2 stops9h 45mSouthwest

mié. 8/205:45 amGEG - DCA

2 stops9h 30mSouthwest

Deal found 4/21

$381

mar. 7/88:10 amIAD - GEG

1 stop10h 57mHawaiian Airlines

mar. 7/221:23 pmGEG - IAD

1 stop7h 36mHawaiian Airlines

Deal found 4/21

$296

sáb. 7/126:15 amIAD - GEG

1 stop6h 45mDelta

lun. 7/1411:55 amGEG - IAD

1 stop8h 34mDelta

Deal found 4/20

$297

jue. 5/227:00 amDCA - GEG

1 stop7h 04mFrontier

dom. 5/2511:49 amGEG - DCA

1 stop7h 10mFrontier

Deal found 4/21

$310

mar. 5/66:30 amIAD - GEG

1 stop9h 01mAlaska Airlines

mar. 5/207:10 amGEG - IAD

1 stop30h 04mAlaska Airlines

Deal found 4/21

$316

Last-minute flights from District of Columbia to Idaho
Discover last-minute flight deals from District of Columbia to Idaho. Data last updated abril 22, 2025 and is based on user searches.

mié. 4/308:30 amIAD - BOI

1 stop9h 51mUnited Airlines

sáb. 5/32:43 pmBOI - IAD

1 stop6h 29mUnited Airlines

Deal found 4/22

$624

mié. 4/304:15 pmDCA - BOI

1 stop8h 48mUnited Airlines

sáb. 5/312:05 pmBOI - DCA

1 stop6h 54mUnited Airlines

Deal found 4/22

$629

mié. 4/306:00 amIAD - BOI

2 stops10h 35mDelta

sáb. 5/37:15 pmBOI - IAD

1 stop9h 05mDelta

Deal found 4/21

$634

mié. 4/304:50 pmDCA - BOI

1 stop8h 57mDelta

sáb. 5/35:30 amBOI - DCA

2 stops10h 50mDelta

Deal found 4/22

$634

mié. 4/304:25 pmDCA - BOI

2 stops9h 30mSouthwest

sáb. 5/310:35 amBOI - DCA

2 stops9h 10mSouthwest

Deal found 4/22

$639

mié. 4/306:40 pmIAD - BOI

1 stop6h 50mSouthwest

sáb. 5/36:45 amBOI - IAD

2 stops14h 30mSouthwest

Deal found 4/22

$640

mié. 4/307:35 amIAD - JAC

1 stop6h 44mDelta

lun. 5/51:23 pmJAC - IAD

1 stop8h 08mDelta

Deal found 4/20

$645

mié. 4/304:15 pmDCA - JAC

1 stop6h 37mUnited Airlines

lun. 5/57:00 amJAC - DCA

1 stop6h 02mUnited Airlines

Deal found 4/20

$645

mié. 4/305:00 amDCA - JAC

2 stops9h 13mAmerican Airlines

lun. 5/512:46 pmJAC - DCA

1 stop8h 18mAmerican Airlines

Deal found 4/20

$650

mié. 4/308:59 amDCA - JAC

2 stops11h 59mDelta

jue. 5/17:05 amJAC - DCA

1 stop6h 55mDelta

Deal found 4/21

$716

jue. 5/15:38 pmIAD - BOI

1 stop21h 04mAlaska Airlines

lun. 5/58:59 pmBOI - IAD

1 stop8h 44mAlaska Airlines

Deal found 4/21

$596

jue. 5/110:00 amIAD - BOI

1 stop10h 01mHawaiian Airlines

lun. 5/58:59 pmBOI - IAD

1 stop8h 44mHawaiian Airlines

Deal found 4/21

$739

One-way flights from District of Columbia to Idaho
Search for one-way flight options from District of Columbia to Idaho. Find affordable one-way fares based on user searches. Data last updated abril 22, 2025.

jue. 5/297:00 amDCA - BOI

1 stop6h 51mFrontier

Deal found 4/22

$98

mar. 8/128:00 amDCA - GEG

1 stop9h 40mHawaiian Airlines

Deal found 4/22

$148

mar. 8/129:00 amIAD - GEG

1 stop10h 06mAlaska Airlines

Deal found 4/22

$148

sáb. 7/263:28 pmDCA - GEG

1 stop10h 49mAmerican Airlines

Deal found 4/22

$149

mar. 7/227:30 amIAD - GEG

1 stop10h 12mDelta

Deal found 4/22

$149

jue. 5/296:30 amIAD - BOI

1 stop10h 36mAlaska Airlines

Deal found 4/22

$150

dom. 6/296:20 amIAD - BOI

1 stop9h 33mDelta

Deal found 4/22

$151

mar. 7/155:00 amDCA - BOI

1 stop7h 54mAmerican Airlines

Deal found 4/21

$151

sáb. 7/266:00 amDCA - GEG

2 stops10h 17mDelta

Deal found 4/22

$154

jue. 5/295:10 pmDCA - BOI

2 stops9h 12mDelta

Deal found 4/22

$156

jue. 6/266:15 amIAD - BOI

1 stop13h 53mSun Country Air

Deal found 4/22

$188

dom. 7/273:00 pmIAD - JAC

1 stop7h 29mDelta

Deal found 4/22

$198

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

jue. 5/15

7:00 am-1:37 pm

1 stop8h 37m

Boise Air Term. Gowen Fld

dom. 5/18

2:27 pm-12:07 pm

1 stop19h 40m

$228

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

jue. 9/18

5:00 pm-11:42 pm

1 stop8h 42m

Boise Air Term. Gowen Fld

sáb. 9/27

7:00 am-7:07 pm

1 stop10h 07m

$277

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

jue. 8/14

5:02 pm-11:59 pm

1 stop9h 57m

Spokane

mar. 8/19

7:00 am-8:59 pm

1 stop10h 59m

$296

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mié. 8/13

9:00 am-4:06 pm

1 stop10h 06m

Spokane

mié. 8/20

7:00 am-7:07 pm

1 stop9h 07m

$296

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

vie. 8/15

4:40 pm-10:42 pm

1 stop9h 02m

Spokane

lun. 8/18

10:59 pm-9:13 am

1 stop7h 14m

$297

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

dom. 8/10

6:00 am-11:28 am

1 stop8h 28m

Spokane

mar. 8/19

12:40 pm-11:15 pm

1 stop7h 35m

$297

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 5/21

8:30 am-4:21 pm

1 stop9h 51m

Boise Air Term. Gowen Fld

mié. 5/28

2:38 pm-10:50 pm

1 stop6h 12m

$301

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

jue. 7/17

6:00 am-12:31 pm

1 stop8h 31m

Boise Air Term. Gowen Fld

mar. 7/22

11:30 pm-9:13 am

1 stop7h 43m

$301

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 6/10

6:00 am-1:53 pm

2 stops9h 53m

Boise Air Term. Gowen Fld

sáb. 6/14

1:00 pm-11:43 pm

1 stop8h 43m

$306

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

jue. 6/5

7:00 am-11:03 am

1 stop7h 03m

Spokane

jue. 6/12

11:58 am-9:59 pm

1 stop7h 01m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 60 results

...

Best time to book a flight from District of Columbia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from District of Columbia 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 District of Columbia to Idaho

What is the cheapest month to book a flight from District of Columbia to Idaho?

Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $314). Flying from District of Columbia to Idaho in June is currently the most expensive (average of $419). 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 DC to ID?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Idaho as you normally would.

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

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from District of Columbia to Idaho to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,911 reviews

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Hawaiian Airlines

7.9

Good

2,392 reviews

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,683 reviews

Alaska Airlines

8.0

Very good

9,911 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

What are the cheapest airlines to fly from District of Columbia to Idaho one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $98. Hawaiian Airlines flights start at $148 while deals on Alaska Airlines start at $148 one-way.
Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?
Yes. In addition to deals on District of Columbia to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Idaho?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Idaho.
Can I find deals for business class flights from District of Columbia to Idaho?
Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Idaho?
Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho (average of $314). Flying from District of Columbia to Idaho in June is currently the most expensive (average of $419). 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 District of Columbia to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$180	Average$294	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$230	Average$514	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$274	Average$568	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$274	Average$527	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$298	Average$654	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$334	Average$611	FlexibilityNo cancel fee	On-time71%

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$98+ Cheap flights from District of Columbia 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia 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 District of Columbia to Idaho

Keep the following information in mind while searching for District of Columbia to Idaho flight deals. Data was last updated abril 22, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from District of Columbia to Idaho

Cheapest flights from District of Columbia to IdahoExplore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from District of Columbia to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Idaho

What is the cheapest month to book a flight from District of Columbia to Idaho?

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

Find hourly flight availability from District of Columbia 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 abril 22, 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 abril 22, 2025.

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from District of Columbia to Idaho to help guide your decision. You can also see how each airline compares 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 District of Columbia 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 District of Columbia to Idaho one-way?

Can I find deals for flights from District of Columbia to Idaho that include hotel bookings?

How can I find direct flights from District of Columbia to Idaho?

Can I find deals for business class flights from District of Columbia to Idaho?

What is the cheapest month to book a flight from District of Columbia 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 District of Columbia to Idaho

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

Top 6 airlines flying from District of Columbia to Idaho

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Cheapest flights from District of Columbia to Idaho
Explore the most affordable flight options available from District of Columbia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.