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District of Columbia

$125+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — IAD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$215
(Frontier)

One-way from

$125
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$427
From Idaho to District of Columbia
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One-way flight from Idaho to District of Columbia
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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:22 pmBOI - DCA
1 stop7h 37mFrontier
Thu 10/97:00 amDCA - BOI
1 stop6h 43mFrontier
Deal found 9/15$215
This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:03 pmGEG - DCA
1 stop6h 56mFrontier
Thu 10/237:00 amDCA - GEG
1 stop7h 08mFrontier
Deal found 9/17$219
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:22 pmBOI - DCA
1 stop7h 37mFrontier
Sun 9/287:00 amDCA - BOI
1 stop6h 37mFrontier
Deal found 9/15$236
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:03 pmGEG - DCA
1 stop21h 01mFrontier
Wed 10/298:00 amDCA - GEG
1 stop30h 08mFrontier
Deal found 9/17$240
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:22 pmBOI - DCA
1 stop7h 37mFrontier
Thu 10/97:00 amDCA - BOI
1 stop6h 43mFrontier
Deal found 9/15$244
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:33 pmBOI - DCA
1 stop7h 26mFrontier
Sat 11/156:00 pmDCA - BOI
1 stop19h 43mFrontier
Deal found 9/15$249
This Delta deal was found by Cheapflights users on 9/16. 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 11/31:00 pmJAC - IAD
1 stop8h 33mDelta
Tue 11/117:10 amIAD - JAC
1 stop6h 52mDelta
Deal found 9/16$267
This Delta deal was found by Cheapflights users on 9/16. 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 11/36:55 pmJAC - DCA
2 stops12h 15mDelta
Tue 11/1110:20 amDCA - JAC
2 stops13h 09mDelta
Deal found 9/16$277
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:22 pmBOI - DCA
1 stop7h 37mFrontier
Sun 10/127:00 amDCA - BOI
1 stop6h 43mFrontier
Deal found 9/15$280
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:03 pmGEG - DCA
1 stop25h 56mFrontier
Wed 10/221:00 pmDCA - GEG
1 stop25h 08mFrontier
Deal found 9/17$282
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:10 pmBOI - IAD
1 stop19h 32mAlaska Airlines
Tue 10/285:40 pmIAD - BOI
1 stop19h 53mAlaska Airlines
Deal found 9/16$296
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:43 amBOI - DCA
1 stop8h 16mHawaiian Airlines
Wed 11/58:00 amDCA - BOI
1 stop9h 12mHawaiian Airlines
Deal found 9/16$296

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 September 17, 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

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

6:00 am-1:25 pm

1 stop9h 25m

$267

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Mon 11/3

1:00 pm-11:33 pm

1 stop8h 33m

Washington, D.C. Dulles Intl

Tue 11/11

7:10 am-12:02 pm

1 stop6h 52m

$267

JacksonWashington, D.C.

JAC - DCA

JACDCA

Jackson Hole

Mon 11/3

6:55 pm-9:10 am

2 stops12h 15m

Washington, D.C. Reagan-National

Tue 11/11

10:20 am-9:29 pm

2 stops13h 09m

$277

HaileyWashington, D.C.

SUN - DCA

SUNDCA

Hailey Sun Valley-Friedman

Thu 2/26

1:30 pm-11:20 pm

1 stop7h 50m

Washington, D.C. Reagan-National

Tue 3/3

6:00 am-12:30 pm

1 stop8h 30m

$297

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Fri 10/31

5:25 am-12:40 am

1 stop17h 15m

Washington, D.C. Dulles Intl

Sun 11/2

7:35 am-8:16 pm

1 stop14h 41m

$297

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 10/7

2:00 pm-12:40 am

1 stop8h 40m

Washington, D.C. Dulles Intl

Tue 10/21

7:10 pm-11:54 pm

1 stop6h 44m

$297

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 11/6

2:00 pm-12:40 am

1 stop8h 40m

Washington, D.C. Dulles Intl

Sun 11/9

7:15 am-4:05 pm

1 stop10h 50m

$297

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 10/7

5:25 am-3:28 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Tue 10/21

6:00 am-12:29 pm

1 stop8h 29m

$297

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 10/7

5:25 am-3:28 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Wed 10/22

4:59 pm-12:08 am

1 stop9h 09m

$297

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 10/28

6:05 pm-6:23 am

1 stop10h 18m

Washington, D.C. Dulles Intl

Thu 11/6

7:43 am-4:17 pm

1 stop10h 34m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 $292). Flying from Idaho to District of Columbia in April is currently the most expensive (average of $337). 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 September 17, 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.

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 September 17, 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
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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, American Airlines, and Hawaiian Airlines fly from Idaho to District of Columbia in about 7h 50m. The time it takes to get you to your destination can typically vary by up to 2h 05m. Idaho and District of Columbia are separated by a distance of 1946 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?

    $125 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $148 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 $292). Flying from Idaho to District of Columbia in April is currently the most expensive (average of $337). 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

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$141Average$417FlexibilityNo cancel feeOn-time75%
DeltaCheapest$249Average$430FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$300Average$522FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$300Average$595FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$493FlexibilityNo cancel feeOn-time63%

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