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

According to our current data, Spirit Airlines ($254), Hawaiian Airlines ($284), and Alaska Airlines ($287) offers the cheapest pricing from Boise to Washington, D.C.. You may be able to fly from Boise to Washington, D.C. for 42% less than the average price by searching for these airlines.

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

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $97. Spirit Airlines flights start at $127 while deals on Alaska Airlines start at $142 one-way.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

While some choose either Boise Air Term. Gowen Fld - Baltimore/Washington or Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National, Boise Air Term. Gowen Fld - Washington, D.C. Dulles Intl is the most popular route from Boise to Washington, D.C..

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

Consider Alaska Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Boise to Washington, D.C..

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

Flights from Boise to Washington, D.C. are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C..

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

Travelers have found it’s best to book a flight 14 days in advance to save up to 154% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 14 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Boise to Washington, D.C. 1-2 weeks in advance for as low as $210, or $1,051 for flights within the next 24 hours.

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

The best pricing can be found in the month of February. Prices to Washington, D.C. from Boise average $439. You can even find prices in February for less than $439, as users have found deals to Washington, D.C. from as low as $300. The month of March appears to be one of the more expensive times to travel to Washington, D.C. from Boise. Flying in the targeted month can save you up to 31%.

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

Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Washington, D.C.. On average, Air Term. Gowen Fld has 0 outbound flights to 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.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Boise to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$97+ Flights from Boise to Washington, D.C.

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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”

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Washington, D.C. are usually found in February or August, booked 13 days in advance, depart on a Saturday or Monday and return on a Wednesday

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

Round-trip from	$254 (Cheapflightsfares)
One-way from	$97 (Priceline)
Popular in	March
Cheapest in	February
Average price	$502

From Boise Air Term. Gowen Fld to Washington, D.C. (WAS)

Search Deals

One-way flight from Boise Air Term. Gowen Fld to Washington, D.C. (WAS)

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High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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

Cheapest flights from Boise to Washington, D.C.
Explore the most affordable flight options available from Boise to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Thu 8/146:06 pmBOI - BWI

1 stop9h 09mSpirit Airlines

Mon 8/186:30 amBWI - BOI

1 stop12h 41mSpirit Airlines

Deal found 7/3

$254

Thu 8/216:06 pmBOI - BWI

1 stop9h 09mMultiple Airlines

Thu 8/286:29 pmBWI - BOI

1 stop19h 09mMultiple Airlines

Deal found 7/2

$275

Wed 8/278:46 pmBOI - IAD

1 stop8h 46mHawaiian Airlines

Sun 8/317:00 amIAD - BOI

1 stop10h 00mHawaiian Airlines

Deal found 7/1

$284

Wed 8/278:10 amBOI - DCA

1 stop10h 49mHawaiian Airlines

Sun 8/318:00 amDCA - BOI

1 stop9h 00mHawaiian Airlines

Deal found 7/1

$284

Wed 8/275:45 pmBOI - BWI

1 stop9h 48mAlaska Airlines

Sun 8/317:00 amBWI - BOI

1 stop8h 48mAlaska Airlines

Deal found 7/3

$287

Wed 8/2712:45 pmBOI - IAD

1 stop8h 47mDelta

Sun 8/313:26 pmIAD - BOI

2 stops9h 14mDelta

Deal found 7/1

$290

Wed 8/271:30 pmBOI - DCA

1 stop7h 16mDelta

Sun 8/316:00 amDCA - BOI

2 stops10h 01mDelta

Deal found 7/1

$290

Wed 10/291:27 pmBOI - BWI

1 stop8h 21mAmerican Airlines

Sat 11/18:05 amBWI - BOI

2 stops13h 32mAmerican Airlines

Deal found 7/2

$292

Wed 8/2710:00 amBOI - DCA

1 stop9h 44mMultiple Airlines

Sun 8/317:00 amDCA - BOI

1 stop6h 38mMultiple Airlines

Deal found 7/2

$293

Tue 9/308:45 amBOI - DCA

2 stops9h 55mSouthwest

Tue 10/73:30 pmDCA - BOI

2 stops9h 50mSouthwest

Deal found 7/1

$295

Wed 10/295:40 amBOI - BWI

2 stops11h 07mDelta

Sat 11/18:10 amBWI - BOI

2 stops12h 59mDelta

Deal found 7/1

$297

Sat 11/11:33 pmBOI - DCA

1 stop9h 26mAmerican Airlines

Wed 11/56:59 amDCA - BOI

1 stop8h 34mAmerican Airlines

Deal found 7/3

$301

Best flights from Boise to Washington, D.C.
Discover carefully curated flight deals from Boise to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Thu 8/146:06 pmBOI - BWI

1 stop9h 09mSpirit Airlines

Mon 8/186:30 amBWI - BOI

1 stop12h 41mSpirit Airlines

Deal found 7/3

$254

Thu 8/216:06 pmBOI - BWI

1 stop9h 09mMultiple Airlines

Thu 8/286:29 pmBWI - BOI

1 stop19h 09mMultiple Airlines

Deal found 7/2

$275

Wed 8/278:46 pmBOI - IAD

1 stop8h 46mHawaiian Airlines

Sun 8/317:00 amIAD - BOI

1 stop10h 00mHawaiian Airlines

Deal found 7/1

$284

Wed 8/275:45 pmBOI - BWI

1 stop9h 48mAlaska Airlines

Sun 8/317:00 amBWI - BOI

1 stop8h 48mAlaska Airlines

Deal found 7/3

$287

Wed 8/2712:45 pmBOI - IAD

1 stop8h 47mDelta

Sun 8/313:26 pmIAD - BOI

2 stops9h 14mDelta

Deal found 7/1

$290

Tue 9/308:45 amBOI - DCA

2 stops9h 55mSouthwest

Tue 10/73:30 pmDCA - BOI

2 stops9h 50mSouthwest

Deal found 7/1

$295

Tue 8/126:35 amBOI - BWI

2 stops9h 28mAmerican Airlines

Tue 8/197:58 amBWI - BOI

2 stops10h 47mAmerican Airlines

Deal found 7/1

$297

Thu 7/1012:36 pmBOI - DCA

1 stop7h 21mFrontier

Sat 7/266:00 pmDCA - BOI

1 stop19h 46mFrontier

Deal found 7/2

$308

Tue 11/112:11 pmBOI - IAD

1 stop8h 04mUnited Airlines

Thu 11/138:25 amIAD - BOI

1 stop7h 00mUnited Airlines

Deal found 6/30

$309

Thu 7/105:44 pmBOI - BWI

1 stop15h 45mSun Country Air

Thu 7/2412:25 pmBWI - BOI

1 stop6h 37mSun Country Air

Deal found 7/2

$385

Wed 8/278:10 amBOI - DCA

1 stop10h 49mHawaiian Airlines

Sun 8/318:00 amDCA - BOI

1 stop9h 00mHawaiian Airlines

Deal found 7/1

$284

Wed 8/271:30 pmBOI - DCA

1 stop7h 16mDelta

Sun 8/316:00 amDCA - BOI

2 stops10h 01mDelta

Deal found 7/1

$290

Last-minute flights from Boise to Washington, D.C.
Discover last-minute flight deals from Boise to Washington, D.C.. Data last updated July 3, 2025 and is based on user searches.

Wed 7/98:46 pmBOI - IAD

1 stop8h 41mAlaska Airlines

Sat 7/266:30 amIAD - BOI

1 stop10h 34mAlaska Airlines

Deal found 7/2

$624

Thu 7/1012:36 pmBOI - DCA

1 stop7h 21mFrontier

Sun 7/277:00 amDCA - BOI

1 stop6h 46mFrontier

Deal found 7/2

$301

Thu 7/1012:36 pmBOI - BWI

1 stop25h 55mFrontier

Sat 7/265:26 pmBWI - BOI

1 stop20h 20mFrontier

Deal found 7/2

$331

Thu 7/105:44 pmBOI - BWI

1 stop15h 45mSun Country Air

Thu 7/2412:25 pmBWI - BOI

1 stop6h 37mSun Country Air

Deal found 7/2

$385

Thu 7/105:44 pmBOI - IAD

2 stops22h 19mMultiple Airlines

Thu 7/176:05 amIAD - BOI

1 stop12h 27mMultiple Airlines

Deal found 7/3

$539

Fri 7/117:48 pmBOI - BWI

1 stop8h 17mMultiple Airlines

Sat 7/265:26 pmBWI - BOI

1 stop20h 20mMultiple Airlines

Deal found 7/2

$420

Fri 7/117:48 pmBOI - BWI

1 stop8h 17mSpirit Airlines

Sun 7/276:15 pmBWI - BOI

1 stop26h 37mSpirit Airlines

Deal found 7/2

$554

Sat 7/127:00 amBOI - IAD

1 stop8h 38mAmerican Airlines

Fri 7/256:27 amIAD - BOI

1 stop10h 14mAmerican Airlines

Deal found 7/2

$570

Sat 7/126:49 amBOI - DCA

1 stop7h 25mAmerican Airlines

Fri 7/255:00 amDCA - BOI

1 stop7h 54mAmerican Airlines

Deal found 7/2

$570

Sat 7/125:00 amBOI - BWI

1 stop8h 14mUnited Airlines

Thu 7/248:55 amBWI - BOI

1 stop9h 45mUnited Airlines

Deal found 7/2

$602

Sat 7/1210:50 amBOI - BWI

2 stops10h 00mSouthwest

Fri 7/252:40 pmBWI - BOI

1 stop10h 40mSouthwest

Deal found 7/2

$621

Sun 7/135:44 pmBOI - IAD

1 stop15h 59mSun Country Air

Sun 7/2712:40 pmIAD - BOI

1 stop7h 16mSun Country Air

Deal found 7/2

$445

One-way flights from Boise to Washington, D.C.
Search for one-way flight options from Boise to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Thu 7/1712:36 pmBOI - DCA

1 stop7h 21mFrontier

Deal found 7/1

$97

Thu 8/216:06 pmBOI - BWI

1 stop9h 09mSpirit Airlines

Deal found 7/3

$127

Wed 11/126:05 pmBOI - IAD

1 stop10h 18mAlaska Airlines

Deal found 6/30

$142

Wed 10/15:45 pmBOI - BWI

1 stop9h 54mAlaska Airlines

Deal found 7/1

$143

Wed 11/127:21 amBOI - IAD

2 stops10h 10mAmerican Airlines

Deal found 6/30

$148

Sun 7/276:55 pmBOI - IAD

1 stop15h 36mSun Country Air

Deal found 7/1

$150

Thu 7/246:01 pmBOI - BWI

1 stop15h 28mSun Country Air

Deal found 7/1

$158

Tue 7/227:12 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Deal found 7/1

$159

Wed 7/2311:40 pmBOI - DCA

1 stop7h 29mDelta

Deal found 7/1

$160

Tue 7/2211:40 pmBOI - IAD

2 stops9h 52mDelta

Deal found 7/1

$165

Mon 8/187:15 pmBOI - IAD

1 stop7h 50mUnited Airlines

Deal found 7/2

$167

Mon 8/186:15 amBOI - DCA

2 stops9h 20mSouthwest

Deal found 7/2

$172

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 8/14

6:06 pm-5:15 am

1 stop9h 09m

Baltimore/Washington

Mon 8/18

6:30 am-5:11 pm

1 stop12h 41m

$254

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 8/21

6:06 pm-5:15 am

1 stop9h 09m

Baltimore/Washington

Thu 8/28

6:29 pm-11:38 am

1 stop19h 09m

$275

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 8/27

8:46 pm-7:32 am

1 stop8h 46m

Washington, D.C. Dulles Intl

Sun 8/31

7:00 am-3:00 pm

1 stop10h 00m

$284

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

8:10 am-8:59 pm

1 stop10h 49m

Washington, D.C. Reagan-National

Sun 8/31

8:00 am-3:00 pm

1 stop9h 00m

$284

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 8/27

5:45 pm-5:33 am

1 stop9h 48m

Baltimore/Washington

Sun 8/31

7:00 am-1:48 pm

1 stop8h 48m

$287

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 8/27

12:45 pm-11:32 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Sun 8/31

3:26 pm-10:40 pm

2 stops9h 14m

$290

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

1:30 pm-10:46 pm

1 stop7h 16m

Washington, D.C. Reagan-National

Sun 8/31

6:00 am-2:01 pm

2 stops10h 01m

$290

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 8/27

3:06 pm-11:47 pm

1 stop6h 41m

Baltimore/Washington

Sun 8/31

1:35 pm-10:40 pm

2 stops11h 05m

$292

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

10:00 am-9:44 pm

1 stop9h 44m

Washington, D.C. Reagan-National

Sun 8/31

7:00 am-11:38 am

1 stop6h 38m

$293

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 9/30

8:45 am-8:40 pm

2 stops9h 55m

Washington, D.C. Reagan-National

Tue 10/7

3:30 pm-11:20 pm

2 stops9h 50m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 45 results

...

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

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

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

The best time to book flights from Boise to Washington, D.C. is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $309). Flying from Boise to Washington, D.C. in July is currently the most expensive (average of $345). 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 BOI to WAS?

When flying from Boise to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 21% versus a flight at noon.

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

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

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

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boise to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,266 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,982 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,545 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,861 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly from for flights from Boise to Washington, D.C.?
Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Washington, D.C.. On average, Air Term. Gowen Fld has 0 outbound flights to 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.
What are the cheapest airlines flying from Boise to Washington, D.C. round-trip?
According to our current data, Spirit Airlines ($254), Hawaiian Airlines ($284), and Alaska Airlines ($287) offers the cheapest pricing from Boise to Washington, D.C.. You may be able to fly from Boise to Washington, D.C. for 42% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Boise to Washington, D.C. one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $97. Spirit Airlines flights start at $127 while deals on Alaska Airlines start at $142 one-way.
What are the most popular routes from Boise to Washington, D.C.?
While some choose either Boise Air Term. Gowen Fld - Baltimore/Washington or Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National, Boise Air Term. Gowen Fld - Washington, D.C. Dulles Intl is the most popular route from Boise to Washington, D.C..
Can I find deals for flights from Boise to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Boise to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boise to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Washington, D.C..
Can I find deals for business class flights from Boise to Washington, D.C.?
Yes. Cheapflights offers flight deals from Boise to Washington, D.C. 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 Boise to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Boise to Washington, D.C. (average of $309). Flying from Boise to Washington, D.C. in July is currently the most expensive (average of $345). 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

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

Easton

Towson

Waldorf

Laurel

Falls Church

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Springfield

National Harbor

Manassas

Dundalk

Bowie

Browse thousands of different options on Cheapflights for your next trip

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

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$141	Average$453	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$300	Average$481	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$300	Average$536	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$300	Average$452	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$346	Average$495	FlexibilityNo cancel fee	On-time63%

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$97+ Cheap flights from Boise (BOI) to Washington, D.C. (WAS)

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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Washington, D.C. are usually found in February or August, booked 13 days in advance, depart on a Saturday or Monday and return on a Wednesday

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

Cheapest flights from Boise to Washington, D.C.Explore the most affordable flight options available from Boise to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Boise to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Boise with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boise to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to Washington, D.C.. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from Boise to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

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

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

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boise to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated 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 Boise to Washington, D.C.. 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 from for flights from Boise to Washington, D.C.?

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

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

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

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

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

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

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

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Alternative routes for Boise to Washington, D.C.

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

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Cheapest flights from Boise to Washington, D.C.
Explore the most affordable flight options available from Boise to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.