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

Return flights

05 Mar - 16 Mar	Air Europa
02 Mar - 17 Mar	Air Europa
06 Mar - 16 Mar	Air Europa
05 Mar - 18 Mar	Air Europa
06 Mar - 15 Mar	Air Europa
04 Mar - 14 Mar	Air Europa
11 Mar - 18 Mar	Vueling Airlines
12 Mar - 19 Mar	easyJet
05 Mar - 27 Mar	easyJet
09 Mar - 15 Mar	easyJet
31 Mar - 14 Apr	Vueling Airlines
24 Mar - 09 Apr	Air Europa
17 Mar - 01 Apr	LATAM Airlines Group
19 Mar - 06 Apr	easyJet
30 Mar - 08 Apr	Air Europa
09 Mar - 07 Apr	easyJet
20 Mar - 11 Apr	Air Europa
20 Mar - 05 Apr	Air Europa
22 Mar - 06 Apr	Vueling Airlines
30 Mar - 10 Apr	easyJet

Also check the deals for one-way flights from London to Buenos Aires 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 London to Buenos Aires in March from 867€

Return flights