HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$90+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BOI
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Boise with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Washington, D.C. to Boise Air Term. Gowen Fld are usually found in February or August, booked 48 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap 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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(FlightHub)

One-way from

$104
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$351
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. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find 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 febrero 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/236:51 amBWI - BOI
1 stop8h 48mSpirit Airlines
mié. 4/302:34 pmBOI - BWI
1 stop13h 12mSpirit Airlines
Deal found 2/19$181
This Delta deal was found by Cheapflights users on 2/19. 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.
sáb. 4/57:43 amIAD - BOI
1 stop10h 17mDelta
lun. 4/77:15 pmBOI - IAD
1 stop8h 53mDelta
Deal found 2/19$231
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 4/16:00 amBWI - BOI
1 stop8h 46mDelta
mié. 4/163:25 pmBOI - BWI
1 stop6h 34mDelta
Deal found 2/20$231
This American Airlines deal was found by Cheapflights users on 2/19. 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.
sáb. 4/56:30 amDCA - BOI
1 stop8h 03mAmerican Airlines
sáb. 4/121:23 pmBOI - DCA
1 stop9h 32mAmerican Airlines
Deal found 2/19$231
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
lun. 4/77:00 amIAD - BOI
1 stop8h 52mHawaiian Airlines
lun. 4/146:40 pmBOI - IAD
1 stop9h 00mHawaiian Airlines
Deal found 2/19$239
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 4/18:00 amDCA - BOI
1 stop10h 20mHawaiian Airlines
mié. 4/169:00 amBOI - DCA
1 stop10h 55mHawaiian Airlines
Deal found 2/20$265
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/13:40 pmIAD - BOI
1 stop9h 50mSouthwest
mié. 4/168:40 amBOI - IAD
2 stops11h 55mSouthwest
Deal found 2/20$271
This American Airlines deal was found by Cheapflights users on 2/19. 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.
sáb. 4/56:15 amBWI - BOI
1 stop8h 18mAmerican Airlines
sáb. 4/121:23 pmBOI - BWI
1 stop7h 13mAmerican Airlines
Deal found 2/19$279
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/710:42 amBWI - BOI
2 stops36h 57mMultiple Airlines
lun. 4/142:34 pmBOI - BWI
3 stops31h 41mMultiple Airlines
Deal found 2/19$285
This American Airlines deal was found by Cheapflights users on 2/19. 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.
mié. 4/26:18 amIAD - BOI
1 stop8h 28mAmerican Airlines
dom. 4/61:23 pmBOI - IAD
1 stop7h 19mAmerican Airlines
Deal found 2/19$295
This United Airlines deal was found by Cheapflights users on 2/19. 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.
sáb. 4/58:30 amIAD - BOI
1 stop7h 02mUnited Airlines
lun. 4/77:00 pmBOI - IAD
1 stop8h 15mUnited Airlines
Deal found 2/19$298
This Delta deal was found by Cheapflights users on 2/19. 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.
sáb. 4/56:00 amDCA - BOI
2 stops10h 05mDelta
lun. 4/73:00 pmBOI - DCA
1 stop6h 51mDelta
Deal found 2/19$300

Find flights from Washington, D.C. to Boise within your budget

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 febrero 20, 2025.

Fly from

Washington, D.C.

Fly to

Boise

Route

Depart

Return

Price

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mié. 4/23

6:51 am-1:39 pm

1 stop8h 48m

Boise Air Term. Gowen Fld

mié. 4/30

2:34 pm-5:46 am

1 stop13h 12m

$181

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

sáb. 4/5

7:43 am-4:00 pm

1 stop10h 17m

Boise Air Term. Gowen Fld

lun. 4/7

7:15 pm-6:08 am

1 stop8h 53m

$231

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

sáb. 4/5

6:30 am-12:33 pm

1 stop8h 03m

Boise Air Term. Gowen Fld

sáb. 4/12

1:23 pm-12:55 am

1 stop9h 32m

$231

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

mar. 4/1

6:00 am-12:46 pm

1 stop8h 46m

Boise Air Term. Gowen Fld

mié. 4/16

3:25 pm-11:59 pm

1 stop6h 34m

$231

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

lun. 4/7

7:00 am-1:52 pm

1 stop8h 52m

Boise Air Term. Gowen Fld

lun. 4/14

6:40 pm-5:40 am

1 stop9h 00m

$239

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 4/1

8:00 am-4:20 pm

1 stop10h 20m

Boise Air Term. Gowen Fld

mié. 4/16

9:00 am-9:55 pm

1 stop10h 55m

$265

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mar. 4/1

3:40 pm-11:30 pm

1 stop9h 50m

Boise Air Term. Gowen Fld

mié. 4/16

8:40 am-10:35 pm

2 stops11h 55m

$271

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

sáb. 4/5

6:15 am-12:33 pm

1 stop8h 18m

Boise Air Term. Gowen Fld

sáb. 4/12

1:23 pm-10:36 pm

1 stop7h 13m

$279

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

lun. 4/7

10:42 am-9:39 pm

2 stops36h 57m

Boise Air Term. Gowen Fld

lun. 4/14

2:34 pm-12:15 am

3 stops31h 41m

$285

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 4/2

6:18 am-12:46 pm

1 stop8h 28m

Boise Air Term. Gowen Fld

dom. 4/6

1:23 pm-10:42 pm

1 stop7h 19m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 37 results
1
2
3
4

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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.

Travel insights for flights from Washington, D.C. to Boise

Get recent, data-driven insights about flights from Washington, D.C. to Boise including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Boise. Price data was last updated on February 14, 2025.

Booking 48 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.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Boise (average of $314). Flying from Washington, D.C. to Boise in June is currently the most expensive (average of $436). 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 WAS to BOI?

Find hourly flight availability from Washington, D.C. to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

It’s typically best to fly out from Washington, D.C. to Boise at noon. Doing so could potentially save you 30% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to Boise?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Boise. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Boise flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 febrero 20, 2025.
To help decide which airline to fly from Washington, D.C. to Boise, see what other customers have to say about Southwest, Alaska Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 6 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • What are the cheapest airlines flying from Washington, D.C. to Boise round-trip?

    Spirit Airlines, at $181, was found to be the cheapest airline from Washington, D.C. to Boise.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Spirit Airlines is 63% 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 Spirit Airlines. According to our data, you can fly for as low as $104. Users have also found prices from $116 and $150 on American Airlines and Alaska Airlines, 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, October is the cheapest month in which you can book a flight from Washington, D.C. to Boise (average of $314). Flying from Washington, D.C. to Boise in June is currently the most expensive (average of $436). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Nampa
McCall
Meridian
Caldwell
Ontario

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Washington, D.C. to Boise

Discover the top 6 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$229Average$328FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$274Average$568FlexibilityNo cancel feeOn-time63%
DeltaCheapest$310Average$474FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$336Average$706FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$340Average$578FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$407Average$593FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.