The cheapest times to fly from DCA to LSC are

  • January 15th to February 11th (except the week of January 22nd)
  • March 19th to April 29th (except the week of March 26th)
  • May 14th to June 10th (except the week of May 21st)
  • August 6th to December 9th (except the weeks of September 3rd and September 17th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DCA to LSC is mid November. Prices can be as high as $1955 for Friday flights during mid December, or as low as $1041 for Tuesday flights around mid November.


When to Fly to La Serena

Flying from Washington, DC (DCA) to La Serena (LSC) will usually cost between $1051 to $1600 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid November with an average ticket price of $1056. Due to high demand the most expensive time to fly is mid December, with an average price of $1649. Planning your trip to low-cost times can easily save you $593 on economy flights and even more on first-class flights. Generally, any price below $1199 can be considered a good price for a round-trip DCA to LSC flight.

See below for a graph of average weekly prices for the DCA to LSC route. All prices are for round-trip tickets in USD.

DCA to LSC Flight Prices

Compared to other flights, the DCA to LSC flight is slightly more expensive than the average and costs about as much as the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to LSC, and Monday the cheapest day to fly back into DCA. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $173 (14%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1171. Return trip prices are from the LSC to DCA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DCA to LSC can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 34 minutes may not be realistic.


Flight Hacking DCA to LSC

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DCA to LSC — but Champion Traveler does!

Hack #1: Santiago (DCA > SCL > LSC)

  • Price for both tickets: $1077
  • Average savings: $122 (10.2%)

See DCA to SCL flights


Flight Questions Answered

Still have questions about flying from DCA to LSC? We’ve got answers.

Which airlines fly this route?

You can find 4 major airlines flying this route most often: Air Canada, American, Delta, LATAM, and potentially more during busy seasons.

How far away is it from La Florida Airport to Ronald Reagan Washington National Airport?

The distance between the two airports is roughly 4765 miles or 7669 kilometers.

How long does it take to fly from DCA to LSC?

The real-world flight time for a nonstop DCA to LSC flight is about 9 hour 34 minutes.

How many flights go between Washington, DC and La Serena?

It depends on the day of the week and the date, but a typical day might have around 14 available flights from DCA to LSC.


Airport Location Info


Departing Airport

Origination code DCA
Origination airport name Ronald Reagan Washington National Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77

Return Airport

Destination code LSC
Destination airport name La Florida Airport
City La Serena
Country Chile
Latitude -29.9
Longitude -71.2


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.