$671+ Cheap flights from District of Columbia 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LSC
Jan 17 — Jan 241
1 adult, Economy
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Best flights from District of Columbia to La SerenaDiscover carefully curated flight deals from District of Columbia to La Serena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
Discover carefully curated flight deals from District of Columbia to La Serena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.
This LATAM Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 3/1711:00 amDCA - LSC
2 stops24h 06mLATAM Airlines
Wed 3/183:49 pmLSC - DCA
2 stops26h 11mLATAM Airlines
Deal found 12/14![LATAM Airlines logo]()
$671
Find flight deals from District of Columbia to La Serena
Keep the following information in mind while searching for District of Columbia to La Serena flight deals. Data was last updated December 18, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $671 (LATAM Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from District of Columbia to La Serena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from District of Columbia to La Serena that are best for you.
Fly from
District of Columbia
Fly to
La Serena
Route
Depart
Return
Price
Washington, D.C.La Serena
DCA - LSC
DCALSC
Washington, D.C. Reagan-National
Tue 3/17
11:00 am-12:06 pm
2 stops24h 06m
La Serena La Florida
Wed 3/18
3:49 pm-5:00 pm
2 stops26h 11m
$671
Best time to book a flight from District of Columbia to La Serena
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Estimated round-trip price
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