HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

$65+ Cheap flights from Idaho to District of Columbia

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to District of Columbia 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.

Find flight deals from Idaho to District of Columbia

Cheapest flights from Idaho to District of Columbia
Explore the most affordable flight options available from Idaho to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2025.

This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:08 pmGEG - DCA
1 stop6h 51mFrontier
Wed 12/106:00 pmDCA - GEG
1 stop20h 13mFrontier
Deal found 10/29$131
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:03 pmGEG - DCA
1 stop6h 56mFrontier
Sat 11/156:00 pmDCA - GEG
1 stop20h 08mFrontier
Deal found 10/29$140
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/712:44 pmBOI - DCA
1 stop22h 22mFrontier
Wed 12/106:00 pmDCA - BOI
1 stop19h 49mFrontier
Deal found 10/30$143
This KAYAK deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:51 amGEG - DCA
1 stop7h 17mAlaska Airlines
Mon 12/85:00 pmDCA - GEG
1 stop9h 14mAlaska Airlines
Deal found 10/30$284
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:17 pmBOI - DCA
2 stops22h 42mMultiple Airlines
Wed 12/101:00 pmDCA - BOI
1 stop24h 49mMultiple Airlines
Deal found 10/30$285
This Alaska Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:30 amGEG - IAD
1 stop9h 04mAlaska Airlines
Thu 12/47:34 amIAD - GEG
1 stop8h 05mAlaska Airlines
Deal found 10/31$304
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:10 pmGEG - IAD
1 stop8h 15mDelta
Thu 12/47:15 amIAD - GEG
1 stop8h 15mDelta
Deal found 10/29$305
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:10 pmGEG - IAD
1 stop8h 44mDelta
Mon 11/246:03 amIAD - GEG
1 stop10h 11mDelta
Deal found 10/29$328
This Alaska Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:47 pmGEG - DCA
1 stop22h 12mAlaska Airlines
Sun 12/78:00 amDCA - GEG
1 stop18h 14mAlaska Airlines
Deal found 10/30$333
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:17 pmGEG - IAD
2 stops10h 54mDelta
Sun 12/77:15 amIAD - GEG
1 stop10h 40mDelta
Deal found 10/30$336
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/202:09 pmGEG - DCA
1 stop6h 22mDelta
Mon 11/244:56 pmDCA - GEG
1 stop8h 54mDelta
Deal found 10/29$337
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/211:16 pmGEG - DCA
1 stop7h 25mDelta
Mon 11/244:56 pmDCA - GEG
1 stop8h 54mDelta
Deal found 10/29$349

Cheap flight deals from Idaho to District of Columbia

Keep the following information in mind while searching for Idaho to District of Columbia flight deals. Data was last updated October 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$131
(Frontier)

One-way from

$65
(Frontier)

Popular in

March

Cheapest in

August

Average price

$373
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
Search Deals
From Idaho to District of Columbia
Search Deals
One-way flight from Idaho to District of Columbia
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 31, 2025.
Use the filters below to find and compare flights from Idaho to District of Columbia that are best for you.

Fly from

Idaho

Fly to

District of Columbia

Route

Depart

Return

Price

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Thu 11/13

12:03 pm-4:56 pm

1 stop25h 53m

Washington, D.C. Reagan-National

Sat 11/15

6:00 pm-11:08 am

1 stop20h 08m

$141

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sun 12/7

12:44 pm-1:06 pm

1 stop22h 22m

Washington, D.C. Reagan-National

Wed 12/10

6:00 pm-11:49 am

1 stop19h 49m

$143

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 2/2

10:10 am-9:59 pm

2 stops33h 49m

Washington, D.C. Reagan-National

Sat 2/7

2:00 pm-11:59 am

1 stop23h 59m

$221

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Fri 12/5

5:51 am-4:08 pm

1 stop7h 17m

Washington, D.C. Reagan-National

Mon 12/8

5:00 pm-11:14 pm

1 stop9h 14m

$284

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 12/4

7:47 pm-4:36 pm

1 stop17h 49m

Washington, D.C. Dulles Intl

Wed 12/10

7:34 am-12:39 pm

1 stop8h 05m

$304

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 11/27

5:30 am-5:34 pm

1 stop9h 04m

Washington, D.C. Dulles Intl

Thu 12/4

7:34 am-9:28 pm

1 stop16h 54m

$304

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 12/3

1:10 pm-11:27 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Sun 12/7

7:15 am-12:29 pm

1 stop8h 14m

$305

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 11/27

1:10 pm-12:25 am

1 stop8h 15m

Washington, D.C. Dulles Intl

Thu 12/4

7:15 am-12:30 pm

1 stop8h 15m

$305

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Thu 3/5

1:10 pm-11:50 pm

1 stop8h 40m

Washington, D.C. Dulles Intl

Mon 3/9

7:15 am-12:17 pm

1 stop7h 02m

$311

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 1/15

12:24 pm-12:59 am

1 stop9h 35m

Washington, D.C. Dulles Intl

Mon 1/19

4:11 pm-9:22 pm

1 stop8h 11m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
1
2
3
...
6

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

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

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

Currently, April is the cheapest month in which you can book a flight from Idaho to District of Columbia (average of $141). Flying from Idaho to District of Columbia in December is currently the most expensive (average of $376). 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 ID to DC?

Find hourly flight availability from Idaho to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2025.

One of the essential ways to save on airfare from Idaho to District of Columbia is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Idaho to District of Columbia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Idaho to District of Columbia flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated October 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Idaho to District of Columbia. 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
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,226 reviews
Alaska Airlines
8.0
Very good
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,996 reviews
Alaska Airlines
8.0
Very good
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,994 reviews
Alaska Airlines
8.0
Very good
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,030 reviews
Alaska Airlines
8.0
Very good
11,226 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

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

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

    Airlines like Frontier, Alaska Airlines, and Delta fly from Idaho to District of Columbia in about 7h 17m. The time it takes to get you to your destination can typically vary by up to 18h 36m. Idaho and District of Columbia are separated by a distance of 2099 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $83 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $155 and $156, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to District of Columbia 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 Idaho to District of Columbia?

    Currently, April is the cheapest month in which you can book a flight from Idaho to District of Columbia (average of $141). Flying from Idaho to District of Columbia in December is currently the most expensive (average of $376). 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

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

Alternative routes for Idaho to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Fort Lauderdale flights
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Miami flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to John F Kennedy Intl flights
LaGuardia to Fort Lauderdale flights
Los Angeles to Newark flights
LaGuardia to Miami flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to Dallas/Fort Worth flights
Dallas/Fort Worth to LaGuardia flights
San Francisco to John F Kennedy Intl flights
O'Hare Intl to John F Kennedy Intl flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
San Francisco to Los Angeles flights
John F Kennedy Intl to West Palm Beach flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Newark flights
Los Angeles to San Francisco flights
Fort Lauderdale to Newark flights
Newark to Orlando flights
Seattle to Los Angeles flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Seattle flights
San Francisco to Newark flights
Hobby to LaGuardia flights
Newark to West Palm Beach flights
Atlanta to John F Kennedy Intl flights
Newark to Hobby flights
John F Kennedy Intl to Atlanta flights
LaGuardia to Hobby flights
Los Angeles to LaGuardia flights
LaGuardia to Orlando flights
Fort Lauderdale to John F Kennedy Intl flights
Hobby to John F Kennedy Intl flights
Newark to San Francisco flights
John F Kennedy Intl to Tampa flights
LaGuardia to Tampa flights
Newark to Las Vegas flights
Dulles Intl to Dallas/Fort Worth flights
San Francisco to Las Vegas flights
Los Angeles to Honolulu flights
San Francisco to Ontario flights

Top 5 airlines flying from Idaho to District of Columbia

Discover the top 5 airlines that operate flights from Idaho to District of Columbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$356FlexibilityNo cancel feeOn-time75%
DeltaCheapest$249Average$435FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$588FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$546FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$351Average$494FlexibilityNo cancel feeOn-time63%

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.
Site
Cookie settings©2025 Cheapflights