$628 Cheap Flights from Seattle (BFI) to Washington (DCA)

View $628 flight on Wed, Aug 6, 2025Opens in a new window

Popular airlines from Seattle, WA (BFI-Boeing Field) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Seattle to Washington (BFI-DCA)

Prices were available within the past 7 days and start at $628 for one-way flights and $1,366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Excursions LLC
Fri, Aug 1 - Wed, Aug 6
BFI
Seattle
DCA
Washington
$1,366 Roundtrip, found 2 days ago
$1,366
Roundtrip
found 2 days ago
Select Air Excursions LLC flight, departing Fri, Aug 1 from Seattle to Washington, returning Wed, Aug 6, priced at $1,366 found 2 days ago
Air Excursions LLC
Fri, Aug 1 - Wed, Aug 6
BFI
Seattle
DCA
Washington
$1,474 Roundtrip, found 2 days ago
$1,474
Roundtrip
found 2 days ago
Select Air Excursions LLC flight, departing Fri, Aug 1 from Seattle to Washington, returning Wed, Aug 6, priced at $1,474 found 2 days ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,712 Roundtrip, found 23 hours ago
$1,712
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,712 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,735 Roundtrip, found 23 hours ago
$1,735
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,735 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,745 Roundtrip, found 23 hours ago
$1,745
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,745 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,826 Roundtrip, found 23 hours ago
$1,826
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,826 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,830 Roundtrip, found 23 hours ago
$1,830
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,830 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,835 Roundtrip, found 23 hours ago
$1,835
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,835 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,853 Roundtrip, found 23 hours ago
$1,853
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,853 found 23 hours ago
Air Excursions LLC
Mon, Aug 4 - Tue, Aug 5
BFI
Seattle
DCA
Washington
$1,858 Roundtrip, found 23 hours ago
$1,858
Roundtrip
found 23 hours ago
Select Air Excursions LLC flight, departing Mon, Aug 4 from Seattle to Washington, returning Tue, Aug 5, priced at $1,858 found 23 hours ago
Flights from Seattle (BFI) to Washington (DCA)
Origin airport
Boeing Field
Destination airport
Ronald Reagan Washington National
Roundtrip price
$1,366
Distance
2322 mi

Seattle to Washington Flights

The cheapest times to fly from Seattle 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 Seattle to Washington are during the month of August. You can find some of the cheapest flights from Seattle to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Washington

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $628 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 Seattle 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 Seattle 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.

 

Frequently asked questions

How much does a flight from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA) cost?
Discover the latest flight deals from BFI to DCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BFI to DCA?
The cheapest flights from BFI to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA)?
You can't fly direct from Seattle, WA (BFI-Boeing Field) to Ronald Reagan Washington National Airport (DCA). However, you can easily reach Washington without any layovers by departing from Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from BFI to DCA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BFI to DCA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA)?
You'll have to take a flight with a layover if you're traveling from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from BFI to DCA?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA)?
To reach Ronald Reagan Washington National Airport (DCA) without delays, opt for a flight that leaves Boeing Field Airport (BFI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until right before your break to book a flight from BFI to DCA often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a BFI to DCA flight and hotel package?
You'll generally save money by securing a BFI to DCA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Ronald Reagan Washington National Airport (DCA)?
Typically, you can cancel or modify your BFI to DCA flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.