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District of Columbia

$91+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 12/295:00 amIDA - IAD
1 stop8h 34mUnited Airlines
Thu 1/14:00 pmIAD - IDA
1 stop7h 14mUnited Airlines
Deal found 12/15$481
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/311:35 pmBOI - DCA
1 stop8h 24mAmerican Airlines
Sun 1/41:07 pmDCA - BOI
1 stop10h 58mAmerican Airlines
Deal found 12/17$537
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/3112:20 pmBOI - IAD
1 stop7h 01mUnited Airlines
Sun 1/46:20 amIAD - BOI
1 stop9h 16mUnited Airlines
Deal found 12/17$600
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/3110:45 amIDA - IAD
1 stop8h 40mUnited Airlines
Fri 1/1610:20 pmIAD - IDA
2 stops17h 10mUnited Airlines
Deal found 12/18$615
This Delta deal was found by Cheapflights users on 12/15. 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 12/231:00 pmBOI - IAD
1 stop8h 18mDelta
Tue 1/202:15 pmIAD - BOI
1 stop8h 40mDelta
Deal found 12/15$620
This Delta deal was found by Cheapflights users on 12/17. 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 12/317:30 amBOI - DCA
2 stops13h 20mDelta
Sun 1/47:15 pmDCA - BOI
1 stop6h 38mDelta
Deal found 12/17$635
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Wed 12/311:16 pmIDA - IAD
2 stops17h 26mAmerican Airlines
Fri 1/167:01 amIAD - IDA
2 stops17h 35mAmerican Airlines
Deal found 12/18$648
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/312:18 pmBOI - IAD
2 stops16h 24mAmerican Airlines
Sun 1/46:05 amIAD - BOI
1 stop8h 32mAmerican Airlines
Deal found 12/16$666
This Delta deal was found by Cheapflights users on 12/16. 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 12/221:55 pmJAC - DCA
1 stop6h 06mDelta
Wed 12/246:00 amDCA - JAC
1 stop9h 21mDelta
Deal found 12/16$672
This Delta deal was found by Cheapflights users on 12/16. 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 12/181:17 pmIDA - DCA
2 stops8h 20mDelta
Thu 1/15:11 pmDCA - IDA
1 stop7h 41mDelta
Deal found 12/16$676
This Delta deal was found by Cheapflights users on 12/16. 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 12/2212:50 pmJAC - IAD
2 stops8h 18mDelta
Wed 12/247:05 amIAD - JAC
1 stop6h 50mDelta
Deal found 12/16$677
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/186:40 amIDA - DCA
1 stop6h 19mUnited Airlines
Thu 1/14:17 pmDCA - IDA
1 stop6h 57mUnited Airlines
Deal found 12/17$681

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$203
(Expedia)

One-way from

$91
(Frontier)

Popular in

January

Cheapest in

August

Average price

$584
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. 26% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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 2/19

12:22 pm-12:04 pm

1 stop20h 42m

Washington, D.C. Reagan-National

Wed 2/25

8:00 am-11:27 am

1 stop30h 27m

$263

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Mon 1/12

2:40 pm-11:22 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Wed 1/21

6:00 am-12:58 pm

1 stop8h 58m

$280

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Thu 1/15

11:22 am-9:59 pm

1 stop7h 37m

Washington, D.C. Reagan-National

Sun 1/18

8:00 am-6:21 pm

2 stops13h 21m

$285

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-4:00 pm

1 stop11h 00m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 1/13

6:23 am-4:26 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Tue 1/20

6:04 pm-10:52 am

1 stop18h 48m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 3/4

10:41 am-11:10 pm

1 stop10h 29m

Washington, D.C. Dulles Intl

Sun 3/8

7:00 am-1:06 pm

1 stop8h 06m

$287

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Fri 1/9

5:45 am-4:26 pm

1 stop7h 41m

Washington, D.C. Dulles Intl

Tue 1/13

6:04 pm-9:25 pm

1 stop30h 21m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Mon 1/12

1:40 pm-11:10 pm

1 stop7h 30m

Washington, D.C. Dulles Intl

Wed 1/21

7:30 am-4:17 pm

1 stop10h 47m

$287

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Fri 2/6

9:05 am-4:26 pm

1 stop28h 21m

Washington, D.C. Dulles Intl

Mon 2/9

6:04 pm-12:44 pm

1 stop21h 40m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 3/4

10:41 am-11:10 pm

1 stop10h 29m

Washington, D.C. Dulles Intl

Wed 3/11

7:00 am-4:00 pm

1 stop11h 00m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 $367). 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 December 18, 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 December 18, 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
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,479 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,250 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,054 reviews
Alaska Airlines
8.0
Very good
11,479 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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, United Airlines, and Delta fly from Idaho to District of Columbia in about 6h 42m. The time it takes to get you to your destination can typically vary by up to 14h. Idaho and District of Columbia are separated by a distance of 1745 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 Alaska Airlines, with prices starting from $104 and $140, 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 $367). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$381FlexibilityNo cancel feeOn-time75%
DeltaCheapest$249Average$435FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$300Average$544FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$300Average$540FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$351Average$478FlexibilityNo cancel feeOn-time63%

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