Find Cheap Flights from Boise to Washington, D.C. (BOI - WAS)

Flights overview

Useful information for finding cheap flights from Boise to Washington, D.C. and booking your next trip

Cheapest round-trip flights	$227	Delta 1 stop 9 hr Thu, Apr 23 — Wed, Apr 29	The cheapest round-trip flight from Boise to Washington, D.C. is currently $227
Cheapest one-way flight	$100	Frontier 1 stop 9 hr Thu, Apr 16	The cheapest one-way flight from Boise to Washington, D.C. is currently $100
Last-minute weekend getaway	$592	Frontier 1 stop 8 hr Thu, Mar 12 — Mon, Mar 16	The cheapest last-minute weekend getaway from Boise to Washington, D.C. is currently $592
Cheapest business class flights	$1,079	United 1 stop 9 hr Sat, Apr 25 — Sat, May 2	The cheapest business class round-trip flight from Boise to Washington, D.C. is currently $1,079

Fastest flight	5 hr 50 min	The fastest flight with stops from Boise to Washington, D.C. takes 5 hr 50 min
Nonstop flights	None	There are no direct flights on this route.

When is the cheapest time to fly?

The cheapest month to fly from Boise to Washington, D.C. is typically September. The most expensive month to fly is typically July.

September Cheapest	Typical prices: $220–415
July Most expensive	Typical prices: $300–455

Popular airlines from Boise to Washington, D.C.

Southwest

from $271

Typical price: $345–690

1211 weekly connecting flights

BOI - BWI, DCA, IAD Every day
United

from $271

Typical price: $305–670

930 weekly connecting flights

BOI - BWI, DCA, IAD Every day
Delta

from $227

Typical price: $300–740

866 weekly connecting flights

BOI - BWI, DCA, IAD Every day
American

from $271

Typical price: $345–720

275 weekly connecting flights

BOI - BWI, DCA, IAD Every day
Alaska

from $227

Typical price: $325–760

133 weekly connecting flights

BOI - BWI, DCA, IAD Every day
Frontier

from $200

Typical price: $215–490

16 weekly connecting flights

BOI - BWI, DCA, IAD Every Thu, Sun

Popular airports near Boise

Boise Airport (BOI)

Boise United States 16 min 3 mi
Friedman Memorial Airport (SUN) (SUN)

Sun Valley United States 2 hr 16 min 96 mi
Magic Valley Regional Airport (TWF)

Twin Falls United States 2 hr 9 min 116 mi
Pocatello Regional Airport (PIH)

Pocatello United States 3 hr 16 min 188 mi

Popular airports near Washington, D.C.

Ronald Reagan Washington National Airport (DCA)

Washington United States 17 min 4 mi
Dulles International Airport (IAD)

Washington United States 54 min 22 mi
Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI)

Baltimore United States 47 min 27 mi
Philadelphia International Airport (PHL)

Philadelphia United States 2 hr 18 min 116 mi

Frequently asked questions about flying from Boise to Washington, D.C.

The cheapest flights from Boise to Washington, D.C. are usually in September. Typical ticket prices in September range from $220 to $415.

The cheapest round-trip flight from Boise to Washington, D.C. recently found on Google Flights was with Delta from $227. The cheapest one-way flight was with Frontier from $100.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Boise to Washington, D.C. is $271, flying from Apr 25 to May 2.
The cheapest United flight from Boise to Washington, D.C. is $271, flying from Apr 18 to Apr 25.
The cheapest Delta flight from Boise to Washington, D.C. is $227, flying from Apr 23 to Apr 29.
The cheapest American flight from Boise to Washington, D.C. is $271, flying from Apr 18 to Apr 25.
The cheapest Alaska flight from Boise to Washington, D.C. is $227, flying from Apr 25 to May 2.
The cheapest Frontier flight from Boise to Washington, D.C. is $200, flying from Apr 12 to Apr 18.

The cheapest round-trip flight from Boise to Washington, D.C. starts at $227 from Thu, Apr 23 to Wed, Apr 29. The cheapest one-way flight starts at $100 and departs on Thu, Apr 16.

5 hr 50 min is the shortest flight time from Boise to Washington, D.C..

Mid-Mar–Jun is Washington DC's busiest time, with many people timing their visits to coincide with cherry blossom season (late Mar–mid Apr). Washington DC’s conference centers and hotels also bustle while Congress is in session (Sep–Nov and mid-Jan–Jun). Jul–Aug tend to be hot and humid, while snowfall can vary widely in winter. The city’s most popular events are the annual Cherry Blossom Festival in spring, the 4th of July celebration in summer, and the lighting of the National Christmas Tree in winter.

It's easy to use Google Flights to find the cheapest days to fly from Boise to Washington, D.C..
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Boise to Washington, D.C. really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Boise to Washington, D.C..

In terms of flights, Southwest is the most popular. Southwest offers 1,211 connecting flights per week. Southwest flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

Other popular airlines flying from Boise to Washington, D.C. are:

United offers 930 connecting flights per week. United flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
Delta offers 866 connecting flights per week. Delta flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
American offers 275 connecting flights per week. American flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
Alaska offers 133 connecting flights per week. Alaska flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .
Frontier offers 16 connecting flights per week. Frontier flies from Boise Airport (BOI) to Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) .

The number of connecting flights refers to distinct flights with at least one stop between Boise and Washington, D.C..

The cheapest round-trip flight from Boise to Washington, D.C. recently found on Google Flights was with Delta from $227. The cheapest one-way flight was with Frontier from $100.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Boise to Washington, D.C. is $271, flying from Apr 25 to May 2.
The cheapest United flight from Boise to Washington, D.C. is $271, flying from Apr 18 to Apr 25.
The cheapest Delta flight from Boise to Washington, D.C. is $227, flying from Apr 23 to Apr 29.
The cheapest American flight from Boise to Washington, D.C. is $271, flying from Apr 18 to Apr 25.
The cheapest Alaska flight from Boise to Washington, D.C. is $227, flying from Apr 25 to May 2.
The cheapest Frontier flight from Boise to Washington, D.C. is $200, flying from Apr 12 to Apr 18.

No airline flies direct from Boise to Washington, D.C..

There are 1211 Southwest connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 930 United connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 866 Delta connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 275 American connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 133 Alaska connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 16 Frontier connecting flights from Boise to Washington, D.C. per week. Flights are available on Thursday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Boise and Washington, D.C. at price $592 is offered by Frontier from Thu, Mar 12 to Mon, Mar 16.

No airline flies direct from Boise to Washington, D.C..

There are 1211 Southwest connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 930 United connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 866 Delta connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 275 American connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 133 Alaska connecting flights from Boise to Washington, D.C. per week. Flights are available every day.
There are 16 Frontier connecting flights from Boise to Washington, D.C. per week. Flights are available on Thursday and Sunday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are no direct flights from Boise to Washington, D.C..

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Boise to Washington, D.C., just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Boise and Washington, D.C. start at $1,079 from Sat, Apr 25 to Sat, May 2 with United.

The cheapest economy class round-trip flights between Boise and Washington, D.C. start at $227 from Thu, Apr 23 to Wed, Apr 29.

To book business class trips from Boise to Washington, D.C., look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Boise and Washington, D.C. starts at $592 from Thu, Mar 12 to Mon, Mar 16 with Frontier.

The cheapest last-minute deal between Boise and Washington, D.C. at price $592 is offered by Frontier from Thu, Mar 12 to Mon, Mar 16.

To find last-minute flight deals from Boise to Washington, D.C., start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.