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$112+ Cheap flights from Washington, D.C. (WAS) to Boise (BOI)

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BOI
Sep 7 — Sep 141
Mon 9/7
Mon 9/14
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Boise

Cheapest flights from Washington, D.C. to Boise
Explore the most affordable flight options available from Washington, D.C. to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.

This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am -
1 stop7h 29m
Thu 9/312:24 pm -
1 stop7h 35m
Deal found 8/6$204
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am -
1 stop7h 29m
Tue 9/11:24 pm -
1 stop21h 27m
Deal found 8/6$224
This Frontier deal was found by Cheapflights users on 8/5. 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 9/106:00 am -
1 stop9h 55m
Mon 9/142:50 pm -
1 stop13h 30m
Deal found 8/5$242
This CheapOair deal was found by Cheapflights users on 8/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 pm -
1 stop20h 29m
Thu 8/2012:24 pm -
1 stop22h 27m
Deal found 8/7$254
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Fri 9/186:00 am -
1 stop9h 55m
Mon 9/212:50 pm -
1 stop13h 30m
Deal found 8/2$269
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Fri 9/186:00 am -
1 stop9h 55m
Sun 9/202:50 pm -
1 stop13h 30m
Deal found 8/2$273
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am -
1 stop7h 29m
Wed 9/96:00 am -
1 stop8h 00m
Deal found 8/3$277
This Expedia deal was found by Cheapflights users on 8/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:59 am -
1 stop11h 21m
Tue 9/81:24 pm -
1 stop20h 47m
Deal found 8/6$279
This Frontier deal was found by Cheapflights users on 8/5. 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 9/176:00 am -
1 stop9h 55m
Mon 9/212:50 pm -
1 stop13h 30m
Deal found 8/5$282
This Expedia deal was found by Cheapflights users on 8/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
1 stop9h 55m
Fri 9/182:50 pm -
1 stop13h 30m
Deal found 8/4$289
This Expedia deal was found by Cheapflights users on 8/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop9h 55m
Tue 9/152:16 pm -
1 stop7h 43m
Deal found 8/7$293
This Expedia deal was found by Cheapflights users on 8/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am -
1 stop10h 24m
Mon 9/212:50 pm -
1 stop13h 30m
Deal found 8/4$298

Find flight deals from Washington, D.C. to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(Expedia)

One-way from

$112
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$400
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
Search Deals
From Washington, D.C. (WAS) to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Washington, D.C. (WAS) to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Boise 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 August 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Tue 9/22

6:15 am-11:26 am

1 stop7h 11m

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-11:25 pm

1 stop6h 41m

$303

BaltimoreBoise

BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld

BWIBOI

Baltimore/Washington

Wed 9/2

6:05 am-1:42 pm

1 stop9h 37m

Boise Air Term. Gowen Fld

Mon 9/7

11:10 pm-9:16 am

1 stop8h 06m

$303

BaltimoreBoise

BWI Baltimore/Washington - BOI Boise Air Term. Gowen Fld

BWIBOI

Baltimore/Washington

Thu 9/24

7:15 pm-11:59 pm

1 stop6h 44m

Boise Air Term. Gowen Fld

Mon 9/28

11:10 pm-9:16 am

1 stop8h 06m

$303

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 9/1

4:20 pm-10:40 pm

1 stop8h 20m

Boise Air Term. Gowen Fld

Sun 9/6

6:30 am-3:03 pm

1 stop6h 33m

$303

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 8/25

4:50 pm-11:10 pm

2 stops8h 20m

Boise Air Term. Gowen Fld

Tue 9/1

6:00 am-6:00 pm

2 stops10h 00m

$313

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Sun 9/6

6:00 am-1:42 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Sun 9/20

11:10 pm-9:09 am

1 stop7h 59m

$327

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Wed 10/28

7:23 am-12:35 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Sun 11/1

8:25 am-8:03 pm

1 stop9h 38m

$327

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Thu 11/19

7:30 am-12:33 pm

1 stop7h 03m

Boise Air Term. Gowen Fld

Sun 11/22

11:35 pm-9:11 am

1 stop7h 36m

$327

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Fri 10/16

6:59 pm-11:59 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Mon 10/19

11:10 pm-9:19 am

1 stop8h 09m

$327

Washington, D.C.Boise

IAD Washington, D.C. Dulles Intl - BOI Boise Air Term. Gowen Fld

IADBOI

Washington, D.C. Dulles Intl

Fri 11/6

7:23 am-12:35 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Tue 11/10

1:13 pm-11:37 pm

1 stop8h 24m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/4

Showing 1-10 of 54 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Boise in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Washington, D.C. 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 Washington, D.C. to Boise

What is the cheapest month to book a flight from Washington, D.C. to Boise?

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Boise (average of $372). Flying from Washington, D.C. to Boise in March is currently the most expensive (average of $630). 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.

How much does it cost to fly round-trip from Washington, D.C. to Boise?

Airfare is below average for this route at the moment.
Washington, D.C. to Boise flights typically cost between $304 and $465 in September.
The cheapest round-trip price found within the last 5 days was $204 on Frontier (Sep 1-Sep 3).

How far ahead should I book a flight from Washington, D.C. to Boise?

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Boise. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated August 8, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Washington, D.C. to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,217 reviews
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Alaska Airlines
7.9
Good
12,776 reviews
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,499 reviews
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,082 reviews
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,877 reviews
Southwest
8.0
Very good
4,217 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boise from Washington, D.C.?

    Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C.. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. per day from 5 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Washington, D.C. to Boise?

    Airlines like United Airlines, Southwest, and Delta fly from Washington, D.C. to Boise in about 7h 11m. The time it takes to get you to your destination can typically vary by up to 44m. Washington, D.C. and Boise 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 flying from Washington, D.C. to Boise round-trip?

    Delta, at $202, was found to be the cheapest airline from Washington, D.C. to Boise.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Users have found that Delta is 54% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. to Boise one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $111. Users have also found prices from $121 and $121 on Southwest and Delta, respectively.

  • What are the most popular routes from Washington, D.C. to Boise?

    Most travelers choose Washington, D.C. Dulles Intl - Boise Air Term. Gowen Fld, Baltimore/Washington - Boise Air Term. Gowen Fld or Washington, D.C. Reagan-National - Boise Air Term. Gowen Fld when deciding on the best route from Washington, D.C. to Boise.

  • Can I find deals for flights from Washington, D.C. to Boise that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Boise.

  • Can I find deals for business class flights from Washington, D.C. to Boise?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Boise 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 Washington, D.C. to Boise?

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Boise (average of $372). Flying from Washington, D.C. to Boise in March is currently the most expensive (average of $630). 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

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell

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Top 5 airlines flying from Washington, D.C. to Boise

Discover the top 5 airlines that operate flights from Washington, D.C. to Boise. 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 August 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$179Average$353FlexibilityNo cancel feeOn-time75%
DeltaCheapest$202Average$420FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$221Average$555FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$262Average$578FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$342Average$506FlexibilityNo cancel feeOn-time63%

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