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$1,071+ Cheap flights from Washington, D.C. (WAS) to La Serena (LSC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LSC
Mar 10 — Mar 171
Tue 3/10
Tue 3/17
1 adult, Economy
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Cheap flight deals from Washington, D.C. to La Serena

Cheapest flights from Washington, D.C. to La Serena
Explore the most affordable flight options available from Washington, D.C. to La Serena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 8, 2026.

This LATAM Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:00 pm
DCA
-
LSC
2 stops27h 05m
LATAM Airlines
Wed 9/21:09 pm
LSC
-
DCA
2 stops24h 56m
LATAM Airlines
Deal found 2/7$1,071

Find flight deals from Washington, D.C. to La Serena

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to La Serena (LSC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars
Provider with most accurate pricing for Washington, D.C. (WAS)-La Serena La Florida flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-La Serena La Florida flights.
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  • Most accurate provider: When it comes to deals on Washington, D.C.-La Serena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-La Serena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-La Serena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-La Serena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-La Serena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to La Serena

Have a flexible travel schedule? Discover the best time to fly to La Serena from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to La Serena
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing La Serena

Get insights into the airlines that provide service to La Serena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to La Serena. Reviews last updated February 8, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to La Serena, such as LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,916 reviews

Food

6.7

Boarding

7.5

Crew

8.0

Overall

7.5

Comfort

7.3

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken
LATAM Airlines
7.5
Good
1,916 reviews
LATAM Airlines
7.5
Good
1,916 reviews

Food

6.7

Boarding

7.5

Crew

8.0

Overall

7.5

Comfort

7.3

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Jess,Jan 2026

GRU - MIA

sat on the tarmac for 4.5 hours with no explanation, climate control, honesty about the timeline or the situation, or even letting anyone off. The crew was passive-aggressive and sneaky, trying to skirt legal time limits requiring financial restitution for passengers, pretending the "flight had started" even though they didn't budge for another 40 minutes. One of the worst flights I've ever taken

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to La Serena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to La Serena from Washington, D.C.?

    La Serena La Florida (LSC), located 2.9 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to La Serena. 0 airlines have flights to La Florida from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to La Serena La Florida should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

  • Can I find deals for flights from Washington, D.C. to La Serena that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to La Serena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to La Serena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to La Serena.

  • Can I find deals for business class flights from Washington, D.C. to La Serena?

    Yes. Cheapflights offers flight deals from Washington, D.C. to La Serena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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