$90 Cheap Flights from Boise (BOI) to Washington (DCA)

View $90 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)

Cheap Flights from Boise to Washington (BOI-DCA)

Prices were available within the past 7 days and start at $90 for one-way flights and $206 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 30 - Sat, Nov 15
BOI
Boise
DCA
Washington
$206 Roundtrip, found 12 hours ago
$206
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Boise to Washington, returning Sat, Nov 15, priced at $206 found 12 hours ago
Frontier Airlines
Thu, Oct 30 - Sat, Nov 1
BOI
Boise
DCA
Washington
$232 Roundtrip, found 2 days ago
$232
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Boise to Washington, returning Sat, Nov 1, priced at $232 found 2 days ago
Delta
Tue, Dec 16 - Wed, Dec 17
BOI
Boise
DCA
Washington
$255 Roundtrip, found 4 hours ago
$255
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Dec 16 from Boise to Washington, returning Wed, Dec 17, priced at $255 found 4 hours ago
Frontier Airlines
Fri, Dec 5 - Wed, Dec 10
BOI
Boise
DCA
Washington
$256 Roundtrip, found 2 days ago
$256
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 5 from Boise to Washington, returning Wed, Dec 10, priced at $256 found 2 days ago
Frontier Airlines
Thu, Oct 30 - Thu, Nov 27
BOI
Boise
DCA
Washington
$257 Roundtrip, found 3 days ago
$257
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Boise to Washington, returning Thu, Nov 27, priced at $257 found 3 days ago
Frontier Airlines
Thu, Oct 30 - Mon, Nov 24
BOI
Boise
DCA
Washington
$267 Roundtrip, found 3 days ago
$267
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Boise to Washington, returning Mon, Nov 24, priced at $267 found 3 days ago
Southwest Airlines
Thu, Jan 22 - Mon, Jan 26
BOI
Boise
DCA
Washington
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Thu, Jan 22 from Boise to Washington, returning Mon, Jan 26, priced at $269 found 3 days ago
Delta
Sat, Feb 7 - Fri, Feb 27
BOI
Boise
DCA
Washington
$270 Roundtrip, found 1 day ago
$270
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Feb 7 from Boise to Washington, returning Fri, Feb 27, priced at $270 found 1 day ago
American Airlines
Thu, Dec 4 - Wed, Dec 10
BOI
Boise
DCA
Washington
$272 Roundtrip, found 5 hours ago
$272
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Dec 4 from Boise to Washington, returning Wed, Dec 10, priced at $272 found 5 hours ago
United
Sat, Feb 14 - Tue, Feb 17
BOI
Boise
DCA
Washington
$281 Roundtrip, found 5 days ago
$281
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 14 from Boise to Washington, returning Tue, Feb 17, priced at $281 found 5 days ago

Find the cheapest month to fly from Boise (BOI) to Washington (DCA)

September is typically the cheapest month to fly

From $200 - $482 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $422
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $422
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $443
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $443

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA) cost?
Lock in a cheap one-way flight from $90 or cheap return flight from $206 from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)?
October is the most affordable month to fly from BOI to DCA. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BOI to DCA flight.
How many flights per day from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)?
There are no daily nonstop flights available from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BOI to DCA?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)?
To avoid potential delays on the Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your departure to book your flight from BOI to DCA often results in higher prices. While it's possible to find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of landing a bargain.
Is it cheaper to book a BOI to DCA flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOI to DCA flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Ronald Reagan Washington National Airport (DCA)?
In most cases, you can modify or cancel your BOI to DCA flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further details, head to our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$206
Distance
2042 mi

Book with confidence

Boise to Washington Flights

The cheapest times to fly from Boise to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Washington are during the month of October. You can find some of the cheapest flights from Boise to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Washington

Sunday is one of the best days to book for cheap flights from Boise to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Washington Flights

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*Available to One Key members.