$632 Cheap Flights from La Serena (LSC) to Washington (DCA)

View $632 flight on Thu, Feb 5, 2026Opens in a new window

Popular airlines from La Serena (LSC-La Florida) to Ronald Reagan Washington National Airport (DCA)

Cheap Flights from La Serena to Washington (LSC-DCA)

Prices were available within the past 7 days and start at $632 for one-way flights and $1,293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

SKY AIRLINE
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$1,293 Roundtrip, found 2 days ago
$1,293
Roundtrip
found 2 days ago
Select SKY AIRLINE flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $1,293 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,113 Roundtrip, found 2 days ago
$2,113
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,113 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,164 Roundtrip, found 2 days ago
$2,164
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,164 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,169 Roundtrip, found 2 days ago
$2,169
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,169 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,193 Roundtrip, found 2 days ago
$2,193
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,193 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,244 Roundtrip, found 2 days ago
$2,244
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,244 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,249 Roundtrip, found 2 days ago
$2,249
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,249 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$2,443 Roundtrip, found 2 days ago
$2,443
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $2,443 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$3,755 Roundtrip, found 2 days ago
$3,755
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $3,755 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$3,965 Roundtrip, found 2 days ago
$3,965
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $3,965 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$3,970 Roundtrip, found 2 days ago
$3,970
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $3,970 found 2 days ago
LATAM Airlines Group
Thu, Jan 1 - Thu, Feb 5
LSC
La Serena
DCA
Washington
$4,379 Roundtrip, found 2 days ago
$4,379
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Thu, Jan 1 from La Serena to Washington, returning Thu, Feb 5, priced at $4,379 found 2 days ago
Flights from La Serena (LSC) to Washington (DCA)
Origin airport
La Florida
Destination airport
Ronald Reagan Washington National
Roundtrip price
$1,293
Distance
4765 mi

La Serena to Washington Flights

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

 

The best time to book a flight from La Serena to Washington

Sunday is one of the best days to book for cheap flights from La Serena 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 La Serena 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 La Serena to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $632 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 La Serena 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 La Serena 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 La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA) cost?
Get a cheap one-way flight from $632 or cheap return flight from $1,293 from La Florida Airport (LSC) 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 offers on this route.
What is the cheapest month to fly from La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from LSC to DCA is January, when there's less demand. Off-peak months are generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from La Florida Airport (LSC) 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 LSC to DCA flight.
How many flights per day from La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA)?
Direct flights from La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LSC to DCA?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a number of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA)?
To avoid potential delays on the La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA) route, fly 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 La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your trip to book a flight from LSC to DCA often results in higher prices. While you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book a LSC to DCA flight and hotel package?
Opting for a LSC to DCA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from La Florida Airport (LSC) to Ronald Reagan Washington National Airport (DCA)?
If you booked your LSC to DCA flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Explore a world of travel with Expedia

*Available to One Key members.