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District of Columbia

$111+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 2/246:28 am
BOI
-
IAD
1 stop8h 52m
Alaska Airlines
Tue 3/37:05 am
IAD
-
BOI
1 stop10h 03m
Alaska Airlines
Deal found 1/26$257
This Delta deal was found by Cheapflights users on 1/28. 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 2/1811:22 am
GEG
-
IAD
1 stop8h 48m
Delta
Wed 2/257:30 am
IAD
-
GEG
1 stop10h 28m
Delta
Deal found 1/28$257
This Delta deal was found by Cheapflights users on 1/28. 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.
Sat 4/253:23 pm
BOI
-
DCA
1 stop6h 20m
Delta
Tue 4/284:39 pm
DCA
-
BOI
1 stop9h 38m
Delta
Deal found 1/28$257
This Delta deal was found by Cheapflights users on 1/28. 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 2/1812:48 pm
GEG
-
DCA
1 stop7h 44m
Delta
Wed 2/254:44 pm
DCA
-
GEG
1 stop10h 20m
Delta
Deal found 1/28$257
This Delta deal was found by Cheapflights users on 1/27. 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 3/1010:35 am
BOI
-
IAD
2 stops11h 06m
Delta
Sat 3/147:00 am
IAD
-
BOI
1 stop8h 05m
Delta
Deal found 1/27$262
This Delta deal was found by Cheapflights users on 1/26. 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 2/248:50 am
BOI
-
IAD
2 stops13h 05m
Delta
Tue 3/36:00 am
IAD
-
BOI
2 stops9h 58m
Delta
Deal found 1/26$268
This Delta deal was found by Cheapflights users on 1/26. 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 3/35:00 am
GEG
-
IAD
2 stops11h 09m
Delta
Wed 3/46:00 am
IAD
-
GEG
2 stops9h 35m
Delta
Deal found 1/26$268
This Delta deal was found by Cheapflights users on 1/27. 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 2/2510:45 am
BOI
-
DCA
2 stops9h 15m
Delta
Wed 3/46:05 am
DCA
-
BOI
2 stops9h 54m
Delta
Deal found 1/27$268
This Delta deal was found by Cheapflights users on 1/26. 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 3/35:00 am
GEG
-
DCA
2 stops10h 59m
Delta
Wed 3/46:05 am
DCA
-
GEG
2 stops9h 30m
Delta
Deal found 1/26$268
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 3/177:02 am
GEG
-
IAD
1 stop10h 47m
United Airlines
Tue 3/244:00 pm
IAD
-
GEG
1 stop8h 18m
United Airlines
Deal found 1/28$285
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 3/51:27 pm
SUN
-
DCA
1 stop8h 23m
American Airlines
Sun 3/86:50 am
DCA
-
SUN
1 stop8h 09m
American Airlines
Deal found 1/27$289
This American Airlines deal was found by Cheapflights users on 1/28. 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 3/176:00 am
GEG
-
IAD
2 stops11h 29m
American Airlines
Tue 3/245:00 am
IAD
-
GEG
2 stops9h 44m
American Airlines
Deal found 1/28$290

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Alaska Airlines)

One-way from

$111
(Frontier)

Popular in

January

Cheapest in

August

Average price

$1,006
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. 28% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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 - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 3/7

1:51 pm-11:10 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-1:05 pm

1 stop8h 05m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 2/24

6:28 am-5:20 pm

1 stop8h 52m

Washington, D.C. Dulles Intl

Tue 3/3

7:05 am-3:08 pm

1 stop10h 03m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 2/25

5:00 am-1:05 pm

1 stop6h 05m

Washington, D.C. Dulles Intl

Wed 3/4

2:36 pm-11:38 pm

1 stop11h 02m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 3/10

1:40 pm-12:27 am

1 stop8h 47m

Washington, D.C. Dulles Intl

Sat 3/14

7:00 am-4:00 pm

1 stop11h 00m

$257

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 2/25

5:00 am-3:44 pm

1 stop7h 44m

Washington, D.C. Dulles Intl

Wed 3/4

12:35 pm-9:07 pm

1 stop11h 32m

$257

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 2/18

11:22 am-11:10 pm

1 stop8h 48m

Washington, D.C. Dulles Intl

Wed 2/25

7:30 am-2:58 pm

1 stop10h 28m

$257

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 2/18

12:48 pm-11:32 pm

1 stop7h 44m

Washington, D.C. Reagan-National

Wed 2/25

4:44 pm-12:04 am

1 stop10h 20m

$257

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 2/24

12:59 pm-11:46 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Tue 3/3

2:17 pm-11:05 pm

2 stops10h 48m

$262

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 2/25

10:45 am-11:55 pm

2 stops11h 10m

Washington, D.C. Dulles Intl

Wed 3/4

7:00 am-1:59 pm

1 stop8h 59m

$262

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Tue 4/21

9:45 am-12:42 am

2 stops11h 57m

Washington, D.C. Dulles Intl

Tue 5/5

6:00 am-1:03 pm

1 stop10h 03m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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, 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 $369). 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.

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 January 29, 2026.
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
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 Delta, Alaska Airlines, and United Airlines fly from Idaho to District of Columbia in about 6h 05m. The time it takes to get you to your destination can typically vary by up to 2h 47m. Idaho and District of Columbia are separated by a distance of 2019 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?

    $100 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $104 and $130, 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 $369). 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

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$346FlexibilityNo cancel feeOn-time75%
DeltaCheapest$194Average$453FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$573FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$563FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$340Average$486FlexibilityNo cancel feeOn-time63%

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