AirHint found the following cheapest return flights from Buenos Aires (AEP) to London (LHR) in March 2026 (see full year).

Return flights

26 Mar - 10 Apr	Aerolineas Argentinas
31 Mar - 06 Apr	Aerolineas Argentinas
26 Mar - 11 Apr	Aerolineas Argentinas
07 Mar - 21 Mar	Aerolineas Argentinas
27 Mar - 10 Apr	Aerolineas Argentinas
03 Mar - 24 Mar	Avianca
03 Mar - 10 Mar	LATAM Airlines Group
20 Mar - 17 Apr	Sky Airline
26 Mar - 09 Apr	LATAM Airlines Group
26 Mar - 18 Apr	LATAM Airlines Group
06 Mar - 17 Mar	Air Canada
16 Mar - 29 Mar	Air Canada
27 Mar - 14 Apr	Air Canada
27 Mar - 11 Apr	LATAM Airlines Group
18 Mar - 31 Mar	Air Canada
18 Mar - 07 Apr	Air Canada
03 Mar - 16 Mar	Avianca
16 Mar - 23 Mar	Avianca
03 Mar - 18 Mar	Avianca
02 Mar - 16 Mar	Avianca

Also check the deals for one-way flights from Buenos Aires to London in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Buenos Aires to London in March from 967€

Return flights