Earn point on your loyalty program!arrow arc left

Cheap flights from Washington (DCA) to Buenos Aires (AEP)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)

How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Washington to Buenos Aires in July , August 2026

30 Jul - 01 Sep $ 1,339.00
DCA
Washington
JetBlue Airways
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
JetBlue Airways
3 STOPS
DCA
Washington
Pick dates
30 Jul - 29 Aug $ 1,425.00
DCA
Washington
LATAM Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
DCA
Washington
Pick dates
31 Jul - 06 Aug $ 2,954.00
DCA
Washington
LATAM Airlines
2 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to Buenos Aires

30 Jul - 01 Aug $ 1,525.00
DCA
Washington
LATAM Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
3 STOPS
DCA
Washington
Pick dates
30 Jul - 01 Aug $ 1,567.00
DCA
Washington
LATAM Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
DCA
Washington
Pick dates
28 Jul - 01 Aug $ 1,623.00
DCA
Washington
LATAM Airlines
3 STOPS
AEP
Buenos Aires
AEP
Buenos Aires
LATAM Airlines
2 STOPS
DCA
Washington
Pick dates

One-way flights to Buenos Aires from Washington

6:59 AM - 9:45 AM
Aerolineas Argentinas
3 Stops
26h 41m
DCA - AEP
$ 843
Kiwi
Pick dates
12:27 PM - 9:45 AM
Aerolineas Argentinas
3 Stops
21h 13m
DCA - AEP
$ 976
Kiwi
Pick dates
4:00 PM - 7:25 AM
LATAM Airlines
2 Stops
17h 30m
DCA - AEP
$ 2,099
Kiwi
Pick dates

How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Washington (DCA) to Buenos Aires (AEP)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.