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 7h 50m. Delta provides one of the quickest options available for as low as $309. There are 2019 mi between Washington, D.C. Dulles Intl Airport and Boise. 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. Dulles Intl Airport to Boise round-trip?

Flying on Alaska Airlines is currently your cheapest option to Boise, with prices starting at $230. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $237 and $314, respectively. Users have found that Alaska Airlines is 48% 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?

$161 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Frontier, with prices starting from $191 and $199, respectively.

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $398). 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 day to fly from Washington, D.C. Dulles Intl Airport to Boise?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Boise flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Boise?

Before booking your flight from Washington, D.C. Dulles Intl Airport to Boise check out the most popular airlines for this route: Alaska Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Boise. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Boise?

To save up to 105% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Dulles Intl Airport to Boise from $229 1-2 weeks out and tickets from $435 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Boise?

Flights from Washington, D.C. Dulles Intl Airport to Boise lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Boise in April, with the cheapest ticket starting at $212.

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.

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.

$146+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Boise

Q: How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Boise flights typically cost between $369 and $470 in March. The cheapest round-trip price found within the last 3 days was $213 on Delta (Mar 3-Mar 4).

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Cheap flight deals from Dulles Intl to Boise

Round-trip from	$213 (Delta)
One-way from	$146 (KAYAK)
Popular in	December
Cheapest in	May
Average price	$370

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. 20% potential increase in price ($114 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($18 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 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 September 15, 2025.

Thu 12/46:00 amIAD - BOI

1 stop8h 34mAmerican Airlines

Sat 1/101:43 pmBOI - IAD

1 stop6h 35mAmerican Airlines

Deal found 9/12

$218

Tue 10/77:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Tue 10/147:05 pmBOI - IAD

1 stop8h 31mUnited Airlines

Deal found 9/14

$297

Thu 12/45:45 pmIAD - BOI

1 stop7h 25mSouthwest

Tue 12/911:45 amBOI - IAD

1 stop8h 25mSouthwest

Deal found 9/13

$309

Thu 12/42:06 pmIAD - BOI

2 stops11h 33mAmerican Airlines

Tue 12/91:17 pmBOI - IAD

1 stop7h 42mAmerican Airlines

Deal found 9/14

$314

Mon 11/107:43 amIAD - BOI

1 stop9h 29mHawaiian Airlines

Mon 11/106:05 pmBOI - IAD

1 stop10h 18mHawaiian Airlines

Deal found 9/13

$315

Sat 10/117:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Sat 10/182:39 pmBOI - IAD

1 stop6h 43mUnited Airlines

Deal found 9/13

$338

Mon 10/205:42 pmIAD - BOI

1 stop19h 52mAlaska Airlines

Fri 10/245:38 pmBOI - IAD

1 stop11h 55mAlaska Airlines

Deal found 9/12

$344

Sat 10/116:25 amIAD - BOI

1 stop10h 11mAlaska Airlines

Sat 10/181:35 pmBOI - IAD

1 stop8h 48mAlaska Airlines

Deal found 9/13

$347

Mon 11/106:04 amIAD - BOI

1 stop8h 31mAmerican Airlines

Fri 11/141:25 pmBOI - IAD

1 stop7h 08mAmerican Airlines

Deal found 9/13

$350

Best flights from Dulles Intl to Boise
Discover carefully curated flight deals from Dulles Intl to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Tue 3/37:00 amIAD - BOI

1 stop8h 07mDelta

Wed 3/410:38 amBOI - IAD

2 stops10h 57mDelta

Deal found 9/12

$218

Tue 10/77:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Tue 10/147:05 pmBOI - IAD

1 stop8h 31mUnited Airlines

Deal found 9/14

$297

Fri 2/206:32 amIAD - BOI

1 stop7h 50mAmerican Airlines

Tue 2/241:48 pmBOI - IAD

1 stop6h 24mAmerican Airlines

Deal found 9/13

$309

Thu 12/45:45 pmIAD - BOI

1 stop7h 25mSouthwest

Tue 12/911:45 amBOI - IAD

1 stop8h 25mSouthwest

Deal found 9/13

$309

Thu 2/197:00 amIAD - BOI

1 stop8h 45mAlaska Airlines

Mon 2/235:00 pmBOI - IAD

1 stop10h 55mAlaska Airlines

Deal found 9/13

$320

Tue 3/37:00 amIAD - BOI

1 stop8h 45mHawaiian Airlines

Wed 3/47:00 amBOI - IAD

1 stop8h 25mHawaiian Airlines

Deal found 9/14

$320

Fri 2/206:15 amIAD - BOI

1 stop9h 54mDelta

Tue 2/2411:45 amBOI - IAD

2 stops9h 50mDelta

Deal found 9/14

$314

Fri 2/206:55 pmIAD - BOI

1 stop16h 31mAlaska Airlines

Mon 2/237:20 pmBOI - IAD

1 stop8h 35mAlaska Airlines

Deal found 9/14

$320

Thu 1/226:30 amIAD - BOI

1 stop8h 04mAmerican Airlines

Mon 1/265:22 pmBOI - IAD

2 stops13h 19mAmerican Airlines

Deal found 9/15

$326

Last-minute flights from Dulles Intl to Boise
Discover last-minute flight deals from Dulles Intl to Boise. Data last updated September 15, 2025 and is based on user searches.

Tue 10/77:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Tue 10/147:05 pmBOI - IAD

1 stop8h 31mUnited Airlines

Deal found 9/14

$297

Tue 10/76:25 amIAD - BOI

1 stop10h 11mAlaska Airlines

Tue 10/145:38 pmBOI - IAD

2 stops21h 04mAlaska Airlines

Deal found 9/14

$375

Sat 10/117:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Sat 10/182:39 pmBOI - IAD

1 stop6h 43mUnited Airlines

Deal found 9/13

$338

Sat 10/116:25 amIAD - BOI

1 stop10h 11mAlaska Airlines

Sat 10/181:35 pmBOI - IAD

1 stop8h 48mAlaska Airlines

Deal found 9/13

$347

Thu 10/168:02 pmIAD - BOI

2 stops17h 41mFrontier

Fri 10/2412:28 pmBOI - IAD

2 stops21h 31mFrontier

Deal found 9/15

$365

Thu 10/167:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Fri 10/247:05 pmBOI - IAD

1 stop8h 31mUnited Airlines

Deal found 9/15

$399

Fri 10/177:41 pmIAD - BOI

1 stop17h 28mAlaska Airlines

Mon 10/208:26 pmBOI - IAD

1 stop9h 07mAlaska Airlines

Deal found 9/14

$351

Mon 10/205:42 pmIAD - BOI

1 stop19h 52mAlaska Airlines

Fri 10/245:38 pmBOI - IAD

1 stop11h 55mAlaska Airlines

Deal found 9/12

$344

Fri 10/315:40 pmIAD - BOI

1 stop19h 53mAlaska Airlines

Sun 11/27:45 pmBOI - IAD

1 stop19h 28mAlaska Airlines

Deal found 9/13

$355

Fri 10/317:35 amIAD - BOI

1 stop10h 32mDelta

Sun 11/22:00 pmBOI - IAD

1 stop8h 40mDelta

Deal found 9/13

$356

One-way flights from Dulles Intl to Boise
Search for one-way flight options from Dulles Intl to Boise. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Thu 10/236:25 amIAD - BOI

1 stop10h 11mAlaska Airlines

Deal found 9/14

$146

Mon 10/207:00 amIAD - BOI

1 stop8h 30mUnited Airlines

Deal found 9/15

$161

Thu 10/166:25 amIAD - BOI

1 stop10h 11mHawaiian Airlines

Deal found 9/15

$191

Thu 10/161:07 pmIAD - BOI

2 stops24h 36mFrontier

Deal found 9/15

$199

Thu 10/161:07 pmIAD - BOI

3 stops24h 36mMultiple Airlines

Deal found 9/15

$200

Thu 10/210:17 amIAD - BOI

3 stops36h 14mMultiple Airlines

Deal found 9/15

$205

Wed 11/267:15 amIAD - BOI

1 stop10h 50mDelta

Deal found 9/13

$222

Mon 12/297:05 amIAD - BOI

1 stop9h 55mDelta

Deal found 9/14

$230

Tue 12/301:57 pmIAD - BOI

2 stops11h 02mAmerican Airlines

Deal found 9/14

$235

Tue 12/306:05 amIAD - BOI

1 stop8h 32mAlaska Airlines

Deal found 9/14

$238

Sun 9/2810:09 pmIAD - BOI

3 stops24h 22mMultiple Airlines

Deal found 9/14

$254

Thu 10/231:45 pmIAD - BOI

2 stops12h 55mSouthwest

Deal found 9/14

$255

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 3/3

7:00 am-1:07 pm

1 stop8h 07m

Boise Air Term. Gowen Fld

Wed 3/4

10:38 am-11:35 pm

2 stops10h 57m

$218

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 10/7

7:00 am-1:30 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

Tue 10/14

7:05 pm-5:36 am

1 stop8h 31m

$297

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 2/20

6:32 am-12:22 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

Tue 2/24

1:48 pm-10:12 pm

1 stop6h 24m

$309

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 12/4

5:45 pm-11:10 pm

1 stop7h 25m

Boise Air Term. Gowen Fld

Tue 12/9

11:45 am-10:10 pm

1 stop8h 25m

$309

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 2/20

6:15 am-2:09 pm

1 stop9h 54m

Boise Air Term. Gowen Fld

Tue 2/24

11:45 am-11:35 pm

2 stops9h 50m

$314

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 2/19

7:00 am-1:45 pm

1 stop8h 45m

Boise Air Term. Gowen Fld

Mon 2/23

5:00 pm-5:55 am

1 stop10h 55m

$320

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 3/3

7:00 am-1:45 pm

1 stop8h 45m

Boise Air Term. Gowen Fld

Wed 3/4

7:00 am-5:25 pm

1 stop8h 25m

$320

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 2/20

6:55 pm-9:26 am

1 stop16h 31m

Boise Air Term. Gowen Fld

Mon 2/23

7:20 pm-5:55 am

1 stop8h 35m

$320

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 1/22

6:30 am-12:34 pm

1 stop8h 04m

Boise Air Term. Gowen Fld

Mon 1/26

5:22 pm-8:41 am

2 stops13h 19m

$326

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Mon 10/20

7:00 am-1:30 pm

1 stop8h 30m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results

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?

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 36% on your trip compared to booking a flight in the evening.

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

Reviews of airlines servicing Boise

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

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Southwest

8.0

Very good

4,242 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Delta

8.0

Very good

7,954 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

United Airlines

7.4

Good

8,929 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

6.0

Good

Hannah,Aug 2025

SFO - SAN

Related info for your journey

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 7h 50m. Delta provides one of the quickest options available for as low as $309. There are 2019 mi between Washington, D.C. Dulles Intl Airport and Boise. 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. Dulles Intl Airport to Boise round-trip?
Flying on Alaska Airlines is currently your cheapest option to Boise, with prices starting at $230. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $237 and $314, respectively. Users have found that Alaska Airlines is 48% 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?
$161 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Frontier, with prices starting from $191 and $199, 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.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $398). 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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Meridian

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Caldwell

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Other flights to Boise

Top 4 airlines flying from Dulles Intl to Boise

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$230	Average$527	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$237	Average$444	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$314	Average$546	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$389	Average$537	FlexibilityNo cancel fee	On-time63%

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$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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Boise with Cheapflights

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Cheap flight deals from Dulles Intl to Boise

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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to BoiseExplore 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 September 15, 2025.

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 September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

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.

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?

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

Reviews of airlines servicing Boise

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.

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?

How long is the flight from Washington, D.C. Dulles Intl Airport to Boise?

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

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

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

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

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

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

Traveling to a place near Boise?

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Alternative routes for Dulles Intl to Boise

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Top 4 airlines flying from Dulles Intl to Boise

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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 September 15, 2025.