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District of Columbia

$89+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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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 April 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$296
(Hawaiian Airlines)

One-way from

$89
(Frontier)

Popular in

March

Cheapest in

February

Average price

$374
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.
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From Idaho to District of Columbia
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One-way flight from Idaho to District of Columbia
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 22, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 8/128:54 amBOI - DCA
1 stop10h 05mAlaska Airlines
Tue 8/198:00 amDCA - BOI
1 stop9h 04mAlaska Airlines
Deal found 4/21$275
This Hawaiian Airlines deal was found by Cheapflights users on 4/22. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/215:25 pmGEG - IAD
1 stop9h 30mHawaiian Airlines
Sun 5/256:30 amIAD - GEG
1 stop9h 15mHawaiian Airlines
Deal found 4/22$296
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 5/2411:33 amGEG - DCA
1 stop7h 26mAlaska Airlines
Wed 5/289:59 amDCA - GEG
1 stop16h 48mAlaska Airlines
Deal found 4/22$296
This Delta deal was found by Cheapflights users on 4/22. 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 6/62:10 pmGEG - IAD
1 stop6h 24mDelta
Mon 6/97:40 amIAD - GEG
1 stop10h 05mDelta
Deal found 4/22$297
This Delta deal was found by Cheapflights users on 4/21. 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.
Tue 5/132:10 pmGEG - DCA
1 stop6h 16mDelta
Tue 5/205:15 pmDCA - GEG
1 stop9h 23mDelta
Deal found 4/21$297
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 8/126:51 pmBOI - IAD
1 stop19h 34mAlaska Airlines
Sat 8/166:30 amIAD - BOI
1 stop10h 34mAlaska Airlines
Deal found 4/21$300
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:41 pmBOI - IAD
1 stop6h 49mAmerican Airlines
Fri 9/197:09 amIAD - BOI
1 stop7h 25mAmerican Airlines
Deal found 4/22$301
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 8/1111:30 pmBOI - DCA
1 stop9h 27mDelta
Mon 8/185:15 pmDCA - BOI
1 stop8h 57mDelta
Deal found 4/21$301
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:10 pmBOI - IAD
1 stop8h 13mUnited Airlines
Sat 5/245:36 pmIAD - BOI
1 stop7h 21mUnited Airlines
Deal found 4/21$307
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/47:00 amGEG - DCA
1 stop8h 02mUnited Airlines
Wed 6/117:00 amDCA - GEG
1 stop10h 47mUnited Airlines
Deal found 4/22$310
This Hawaiian Airlines deal was found by Cheapflights users on 4/21. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:12 pmBOI - IAD
1 stop10h 15mHawaiian Airlines
Thu 8/76:30 amIAD - BOI
1 stop10h 34mHawaiian Airlines
Deal found 4/21$329
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/131:15 pmBOI - DCA
1 stop7h 00mAmerican Airlines
Sun 6/157:00 amDCA - BOI
1 stop7h 44mAmerican Airlines
Deal found 4/22$330

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 April 22, 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

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 8/12

8:54 am-8:59 pm

1 stop10h 05m

Washington, D.C. Reagan-National

Tue 8/19

8:00 am-3:04 pm

1 stop9h 04m

$275

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 5/21

5:25 pm-5:55 am

1 stop9h 30m

Washington, D.C. Dulles Intl

Sun 5/25

6:30 am-12:45 pm

1 stop9h 15m

$296

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Sat 5/24

11:33 am-9:59 pm

1 stop7h 26m

Washington, D.C. Reagan-National

Wed 5/28

9:59 am-11:47 pm

1 stop16h 48m

$296

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Fri 6/6

2:10 pm-11:34 pm

1 stop6h 24m

Washington, D.C. Dulles Intl

Mon 6/9

7:40 am-2:45 pm

1 stop10h 05m

$297

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Tue 5/13

2:10 pm-11:26 pm

1 stop6h 16m

Washington, D.C. Reagan-National

Tue 5/20

5:15 pm-11:38 pm

1 stop9h 23m

$297

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 8/12

6:51 pm-4:25 pm

1 stop19h 34m

Washington, D.C. Dulles Intl

Sat 8/16

6:30 am-3:04 pm

1 stop10h 34m

$300

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 9/16

1:41 pm-10:30 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

Fri 9/19

7:09 am-12:34 pm

1 stop7h 25m

$301

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 8/11

11:30 pm-10:57 am

1 stop9h 27m

Washington, D.C. Reagan-National

Fri 8/15

4:40 pm-12:04 am

1 stop9h 24m

$301

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Mon 5/12

7:10 pm-5:23 am

1 stop8h 13m

Washington, D.C. Dulles Intl

Sat 5/24

5:36 pm-10:57 pm

1 stop7h 21m

$307

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 6/4

7:00 am-6:02 pm

1 stop8h 02m

Washington, D.C. Reagan-National

Wed 6/11

7:00 am-2:47 pm

1 stop10h 47m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 60 results
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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, August is the cheapest month in which you can book a flight from Idaho to District of Columbia (average of $309). Flying from Idaho to District of Columbia in June is currently the most expensive (average of $383). 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 April 22, 2025.

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

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 22, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Idaho to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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
9,906 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Overall

8.0

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

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.

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

    $89 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 Hawaiian Airlines, with prices starting from $135 and $148, 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, August is the cheapest month in which you can book a flight from Idaho to District of Columbia (average of $309). Flying from Idaho to District of Columbia in June is currently the most expensive (average of $383). 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.

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Alternative routes for Idaho to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$489FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$300Average$676FlexibilityNo cancel feeOn-time69%
DeltaCheapest$306Average$465FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$346Average$482FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$359Average$627FlexibilityNo cancel feeOn-time71%

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