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

Return flights

08 Mar - 31 Mar	Avianca
09 Mar - 19 Mar	Avianca
08 Mar - 18 Mar	Avianca
22 Mar - 31 Mar	Avianca
02 Mar - 17 Mar	Aerolíneas Argentinas
05 Mar - 12 Mar	Avianca
23 Mar - 11 Apr	Avianca
16 Mar - 31 Mar	Avianca
13 Mar - 01 Apr	Avianca
04 Mar - 14 Mar	Aerolíneas Argentinas
17 Mar - 25 Mar	Avianca
17 Mar - 30 Mar	Avianca
26 Mar - 16 Apr	Aerolíneas Argentinas
23 Mar - 07 Apr	Avianca
17 Mar - 02 Apr	Avianca
21 Mar - 11 Apr	Aerolíneas Argentinas
13 Mar - 03 Apr	Avianca
23 Mar - 03 Apr	Avianca
24 Mar - 03 Apr	Avianca
15 Mar - 02 Apr	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.

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Cheapest return flights from Buenos Aires to London in March from $932

Return flights