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

According to our current data, Hawaiian Airlines ($284), American Airlines ($285), and United 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 35% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $142. Hawaiian Airlines flights start at $142 while deals on Delta start at $143 one-way.

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

While some choose either Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National or Boise Air Term. Gowen Fld - Baltimore/Washington, 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 $440. You can even find prices in February for less than $440, 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.

$142+ 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”

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

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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 April, 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	$284 (Hawaiian Airlines)
One-way from	$142 (Alaska Airlines)
Popular in	March
Cheapest in	February
Average price	$406

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

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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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 June 12, 2025.

Wed 8/277:17 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Sun 8/319:00 amIAD - BOI

1 stop10h 18mHawaiian Airlines

Deal found 6/11

$284

Wed 10/157:21 amBOI - DCA

1 stop11h 08mHawaiian Airlines

Wed 10/228:00 amDCA - BOI

1 stop8h 35mHawaiian Airlines

Deal found 6/10

$284

Wed 10/157:30 amBOI - IAD

1 stop6h 37mAmerican Airlines

Wed 10/226:45 amIAD - BOI

1 stop7h 49mAmerican Airlines

Deal found 6/11

$285

Wed 8/271:07 pmBOI - DCA

1 stop8h 43mAmerican Airlines

Sun 8/317:00 amDCA - BOI

1 stop7h 19mAmerican Airlines

Deal found 6/11

$285

Wed 10/291:41 pmBOI - BWI

1 stop6h 51mAmerican Airlines

Tue 11/46:30 amBWI - BOI

1 stop8h 03mAmerican Airlines

Deal found 6/10

$287

Wed 8/2712:45 pmBOI - IAD

1 stop8h 47mDelta

Sun 8/316:00 amIAD - BOI

2 stops10h 01mDelta

Deal found 6/10

$290

Wed 8/271:30 pmBOI - DCA

1 stop8h 16mDelta

Sun 8/318:59 amDCA - BOI

2 stops9h 58mDelta

Deal found 6/10

$290

Wed 8/2712:45 pmBOI - BWI

1 stop9h 11mDelta

Sun 8/316:00 amBWI - BOI

2 stops10h 01mDelta

Deal found 6/10

$292

Thu 8/217:07 amBOI - DCA

1 stop12h 52mAlaska Airlines

Mon 8/258:00 amDCA - BOI

1 stop9h 00mAlaska Airlines

Deal found 6/10

$296

Thu 8/215:45 pmBOI - BWI

1 stop9h 48mAlaska Airlines

Mon 8/257:00 amBWI - BOI

1 stop10h 00mAlaska Airlines

Deal found 6/10

$296

Thu 10/3012:35 pmBOI - IAD

1 stop6h 48mUnited Airlines

Mon 11/36:48 amIAD - BOI

1 stop8h 42mUnited Airlines

Deal found 6/10

$297

Thu 10/3012:35 pmBOI - DCA

1 stop6h 20mUnited Airlines

Mon 11/34:07 pmDCA - BOI

1 stop7h 09mUnited Airlines

Deal found 6/10

$297

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 June 12, 2025.

Wed 8/277:17 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Sun 8/319:00 amIAD - BOI

1 stop10h 18mHawaiian Airlines

Deal found 6/11

$284

Wed 10/157:30 amBOI - IAD

1 stop6h 37mAmerican Airlines

Wed 10/226:45 amIAD - BOI

1 stop7h 49mAmerican Airlines

Deal found 6/11

$285

Wed 8/137:15 pmBOI - BWI

1 stop8h 13mUnited Airlines

Wed 8/207:00 amBWI - BOI

1 stop8h 30mUnited Airlines

Deal found 6/11

$287

Wed 8/2712:45 pmBOI - IAD

1 stop8h 47mDelta

Sun 8/316:00 amIAD - BOI

2 stops10h 01mDelta

Deal found 6/10

$290

Thu 8/217:07 amBOI - DCA

1 stop12h 52mAlaska Airlines

Mon 8/258:00 amDCA - BOI

1 stop9h 00mAlaska Airlines

Deal found 6/10

$296

Thu 10/305:30 amBOI - IAD

2 stops11h 30mSouthwest

Mon 11/37:50 pmIAD - BOI

1 stop6h 45mSouthwest

Deal found 6/10

$302

Thu 7/246:01 pmBOI - BWI

1 stop15h 28mSun Country Air

Sun 7/2712:25 pmBWI - BOI

1 stop7h 31mSun Country Air

Deal found 6/10

$315

Mon 7/147:48 pmBOI - BWI

2 stops31h 45mSpirit Airlines

Thu 7/172:50 pmBWI - BOI

2 stops30h 02mSpirit Airlines

Deal found 6/10

$328

Mon 7/147:48 pmBOI - BWI

2 stops31h 45mMultiple Airlines

Thu 7/172:50 pmBWI - BOI

2 stops32h 51mMultiple Airlines

Deal found 6/10

$330

Thu 7/2412:36 pmBOI - DCA

1 stop7h 21mFrontier

Sat 8/96:00 pmDCA - BOI

1 stop19h 46mFrontier

Deal found 6/10

$379

Wed 8/271:07 pmBOI - DCA

1 stop8h 43mAmerican Airlines

Sun 8/317:00 amDCA - BOI

1 stop7h 19mAmerican Airlines

Deal found 6/11

$285

Wed 8/271:30 pmBOI - DCA

1 stop8h 16mDelta

Sun 8/318:59 amDCA - BOI

2 stops9h 58mDelta

Deal found 6/10

$290

Last-minute flights from Boise to Washington, D.C.
Discover last-minute flight deals from Boise to Washington, D.C.. Data last updated June 12, 2025 and is based on user searches.

Tue 6/171:00 pmBOI - IAD

1 stop8h 59mAlaska Airlines

Wed 11/57:43 amIAD - BOI

1 stop10h 19mAlaska Airlines

Deal found 6/10

$526

Tue 6/171:00 pmBOI - IAD

1 stop8h 43mDelta

Sat 11/87:00 amIAD - BOI

1 stop8h 12mDelta

Deal found 6/10

$577

Tue 6/175:05 amBOI - BWI

1 stop7h 05mSouthwest

Wed 6/185:50 pmBWI - BOI

1 stop7h 50mSouthwest

Deal found 6/12

$727

Wed 6/1811:46 amBOI - IAD

1 stop8h 53mAmerican Airlines

Wed 11/55:03 amIAD - BOI

2 stops10h 30mAmerican Airlines

Deal found 6/10

$532

Wed 6/189:53 amBOI - DCA

1 stop10h 06mHawaiian Airlines

Wed 11/58:00 amDCA - BOI

1 stop10h 02mHawaiian Airlines

Deal found 6/10

$601

Thu 6/1912:36 pmBOI - DCA

1 stop26h 21mFrontier

Wed 11/51:00 pmDCA - BOI

1 stop24h 43mFrontier

Deal found 6/10

$457

Thu 6/198:26 pmBOI - IAD

1 stop12h 53mMultiple Airlines

Tue 6/248:10 amIAD - BOI

1 stop10h 54mMultiple Airlines

Deal found 6/9

$605

Thu 6/192:35 pmBOI - IAD

1 stop7h 59mUnited Airlines

Sat 11/86:30 amIAD - BOI

1 stop7h 09mUnited Airlines

Deal found 6/10

$632

Thu 6/197:07 pmBOI - BWI

1 stop10h 20mUnited Airlines

Tue 6/248:55 amBWI - BOI

1 stop9h 46mUnited Airlines

Deal found 6/10

$738

Thu 6/1912:15 pmBOI - IAD

2 stops9h 15mSouthwest

Tue 6/242:05 pmIAD - BOI

2 stops12h 35mSouthwest

Deal found 6/9

$742

Thu 6/1911:25 amBOI - DCA

1 stop8h 34mAlaska Airlines

Tue 6/249:59 amDCA - BOI

1 stop14h 55mAlaska Airlines

Deal found 6/10

$753

Fri 6/209:43 amBOI - BWI

1 stop18h 00mSpirit Airlines

Thu 6/266:00 amBWI - BOI

1 stop28h 48mSpirit Airlines

Deal found 6/10

$538

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 June 12, 2025.

Wed 9/36:35 amBOI - IAD

1 stop8h 34mAlaska Airlines

Deal found 6/11

$142

Wed 9/36:35 amBOI - DCA

1 stop8h 14mHawaiian Airlines

Deal found 6/10

$142

Tue 7/111:40 pmBOI - DCA

1 stop7h 29mDelta

Deal found 6/10

$143

Wed 9/36:35 amBOI - BWI

1 stop9h 47mAlaska Airlines

Deal found 6/10

$143

Mon 6/3011:40 pmBOI - BWI

1 stop9h 12mDelta

Deal found 6/11

$144

Wed 9/36:05 pmBOI - BWI

2 stops8h 55mSouthwest

Deal found 6/10

$149

Wed 7/97:12 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Deal found 6/10

$159

Sun 9/79:49 pmBOI - BWI

1 stop24h 21mSpirit Airlines

Deal found 6/12

$159

Wed 7/97:45 pmBOI - IAD

1 stop8h 12mDelta

Deal found 6/12

$160

Sun 8/105:50 pmBOI - BWI

1 stop15h 33mSun Country Air

Deal found 6/10

$163

Tue 7/297:15 pmBOI - DCA

2 stops12h 42mUnited Airlines

Deal found 6/10

$165

Fri 8/2912:27 pmBOI - DCA

1 stop7h 32mFrontier

Deal found 6/12

$181

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

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 8/27

7:17 pm-7:32 am

1 stop10h 15m

Washington, D.C. Dulles Intl

Sun 8/31

9:00 am-5:18 pm

1 stop10h 18m

$284

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 10/15

7:30 am-4:07 pm

1 stop6h 37m

Washington, D.C. Dulles Intl

Wed 10/22

6:45 am-12:34 pm

1 stop7h 49m

$285

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

1:07 pm-11:50 pm

1 stop8h 43m

Washington, D.C. Reagan-National

Sun 8/31

7:00 am-12:19 pm

1 stop7h 19m

$285

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 8/13

7:15 pm-5:28 am

1 stop8h 13m

Baltimore/Washington

Wed 8/20

7:00 am-1:30 pm

1 stop8h 30m

$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

6:00 am-2:01 pm

2 stops10h 01m

$290

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

6:35 am-4:49 pm

1 stop8h 14m

Washington, D.C. Reagan-National

Mon 9/1

5:49 pm-11:59 pm

1 stop8h 10m

$290

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Wed 8/27

12:45 pm-11:56 pm

1 stop9h 11m

Baltimore/Washington

Sun 8/31

6:00 am-2:01 pm

2 stops10h 01m

$292

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 8/21

7:07 am-9:59 pm

1 stop12h 52m

Washington, D.C. Reagan-National

Mon 8/25

8:00 am-3:00 pm

1 stop9h 00m

$296

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Thu 8/21

5:45 pm-5:33 am

1 stop9h 48m

Baltimore/Washington

Mon 8/25

7:00 am-3:00 pm

1 stop10h 00m

$296

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 10/30

12:35 pm-9:23 pm

1 stop6h 48m

Washington, D.C. Dulles Intl

Mon 11/3

6:48 am-1:30 pm

1 stop8h 42m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 47 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 $241). Flying from Boise to Washington, D.C. in March is currently the most expensive (average of $290). 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.

Rainfall in Washington, D.C. by month

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.

Temperature in Washington, D.C. by month

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).

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to Washington, D.C. have to say. You can also see how each airline compares 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

4,287 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

7,950 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

7.9

Good

2,494 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

8,790 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, Hawaiian Airlines ($284), American Airlines ($285), and United 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 35% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $142. Hawaiian Airlines flights start at $142 while deals on Delta start at $143 one-way.
What are the most popular routes from Boise to Washington, D.C.?
While some choose either Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National or Boise Air Term. Gowen Fld - Baltimore/Washington, 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 $241). Flying from Boise to Washington, D.C. in March is currently the most expensive (average of $290). 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

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

Dundalk

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$478	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$300	Average$530	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$300	Average$452	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$346	Average$497	FlexibilityNo cancel fee	On-time63%

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$142+ 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 9/3. 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 April, 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 June 12, 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 June 12, 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 9, 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 June 12, 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.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to Washington, D.C. have to say. You can also see how each airline compares 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.?

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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 June 12, 2025.