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Boise

$146+ Cheap flights from Dulles Intl (IAD) 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOI
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to Boise
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This United Airlines deal was found by Cheapflights users on 10/15. 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.
Wed 11/198:25 amIAD - BOI
1 stop7h 00mUnited Airlines
Wed 12/32:20 pmBOI - IAD
1 stop8h 36mUnited Airlines
Deal found 10/15$317
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:43 amIAD - BOI
1 stop9h 29mAlaska Airlines
Wed 11/197:01 amBOI - IAD
1 stop8h 12mAlaska Airlines
Deal found 10/15$318
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/124:10 pmIAD - BOI
1 stop9h 18mUnited Airlines
Wed 11/1912:45 pmBOI - IAD
1 stop6h 38mUnited Airlines
Deal found 10/14$319
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 11/115:40 pmIAD - BOI
1 stop19h 53mAlaska Airlines
Tue 11/186:05 pmBOI - IAD
1 stop10h 18mAlaska Airlines
Deal found 10/14$320
This Delta deal was found by Cheapflights users on 10/15. 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.
Wed 11/56:18 amIAD - BOI
1 stop9h 44mDelta
Sat 11/83:00 pmBOI - IAD
1 stop6h 39mDelta
Deal found 10/15$321
This American Airlines deal was found by Cheapflights users on 10/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:16 pmIAD - BOI
2 stops10h 16mAmerican Airlines
Wed 12/36:44 amBOI - IAD
1 stop7h 30mAmerican Airlines
Deal found 10/15$322
This Delta deal was found by Cheapflights users on 10/15. 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.
Wed 11/125:03 pmIAD - BOI
2 stops9h 06mDelta
Wed 11/191:50 pmBOI - IAD
1 stop9h 04mDelta
Deal found 10/15$324
This Delta deal was found by Cheapflights users on 10/16. 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 12/47:15 amIAD - BOI
1 stop10h 47mDelta
Sun 12/711:44 amBOI - IAD
1 stop9h 43mDelta
Deal found 10/16$327
This Delta deal was found by Cheapflights users on 10/14. 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 11/115:03 pmIAD - BOI
2 stops9h 32mDelta
Tue 11/189:00 amBOI - IAD
2 stops12h 03mDelta
Deal found 10/14$331
This Delta deal was found by Cheapflights users on 10/14. 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 12/47:15 amIAD - BOI
1 stop10h 47mDelta
Sat 1/1010:38 amBOI - IAD
1 stop10h 38mDelta
Deal found 10/14$336

Cheap flight deals from Dulles Intl to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$301
(Delta)

One-way from

$146
(Delta)

Popular in

December

Cheapest in

May

Average price

$492
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Boise Air Term. Gowen Fld flights.
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From Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 October 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

Fly from

Dulles Intl

Fly to

Boise

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 11/5

6:18 am-2:02 pm

1 stop9h 44m

Boise Air Term. Gowen Fld

Sat 11/8

11:12 am-11:00 pm

2 stops9h 48m

$326

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 11/12

7:10 am-12:00 pm

1 stop6h 50m

Boise Air Term. Gowen Fld

Sat 11/15

11:10 am-11:03 pm

2 stops9h 53m

$326

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 12/4

7:15 am-4:02 pm

1 stop10h 47m

Boise Air Term. Gowen Fld

Sun 12/7

11:44 am-11:27 pm

1 stop9h 43m

$327

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 12/4

7:15 am-4:02 pm

1 stop10h 47m

Boise Air Term. Gowen Fld

Thu 12/11

1:54 pm-11:27 pm

1 stop7h 33m

$327

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Mon 11/10

5:40 pm-11:33 am

1 stop19h 53m

Boise Air Term. Gowen Fld

Thu 11/13

6:05 pm-6:23 am

1 stop10h 18m

$350

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 11/5

7:43 am-6:02 pm

1 stop12h 19m

Boise Air Term. Gowen Fld

Fri 11/7

6:05 pm-4:40 pm

1 stop20h 35m

$352

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 11/5

6:18 am-2:02 pm

1 stop9h 44m

Boise Air Term. Gowen Fld

Thu 11/6

2:00 pm-12:40 am

1 stop8h 40m

$366

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 11/7

5:40 pm-11:42 am

2 stops20h 02m

Boise Air Term. Gowen Fld

Mon 11/10

7:01 am-5:13 pm

1 stop8h 12m

$368

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Sun 11/23

6:30 am-1:44 pm

1 stop9h 14m

Boise Air Term. Gowen Fld

Sun 11/23

7:00 pm-6:55 am

1 stop9h 55m

$391

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 10/31

12:27 pm-7:07 pm

2 stops8h 40m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 19 results
1
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Compare providers for flights from Dulles Intl 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 Dulles Intl to Boise in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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. Dulles Intl Airport-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. Dulles Intl Airport-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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 Dulles Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl 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. Dulles Intl Airport to Boise

What is the cheapest time of day to fly from IAD to BOI?

Find hourly flight availability from Dulles Intl 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 October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Boise at noon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the evening.

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 October 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,103 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,103 reviews
Alaska Airlines
8.0
Very good
11,103 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,103 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,978 reviews
Alaska Airlines
8.0
Very good
11,103 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,982 reviews
Alaska Airlines
8.0
Very good
11,103 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C. Dulles Intl. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. Dulles Intl per day from 4 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. Dulles Intl Airport to Boise?

    A quick flight from Washington, D.C. Dulles Intl Airport to Boise can take about 9h 44m. Delta provides one of the quickest options available for as low as $326. There are 2019 mi between Washington, D.C. Dulles Intl Airport and Boise.

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

    Flying on Alaska Airlines is currently your cheapest option to Boise, with prices starting at $182. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $237 and $278, respectively. Users have found that Alaska Airlines is 59% cheaper than the other options available to this destination.

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

    $146 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 $158 and $158, respectively.

  • Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Boise?

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

  • Can I find deals for business class flights from Dulles Intl to Boise?

    Yes. Cheapflights offers flight deals from Dulles Intl 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.

See more FAQs

Traveling to a place near Boise?

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

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Top 4 airlines flying from Dulles Intl to Boise

Discover the top 4 airlines that operate flights from Dulles Intl 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$182Average$527FlexibilityNo cancel feeOn-time75%
DeltaCheapest$237Average$370FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$548FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$429Average$549FlexibilityNo cancel feeOn-time63%

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