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

Return flights

12 Mar - 16 Mar	Air Europa
08 Mar - 22 Mar	easyJet
11 Mar - 24 Mar	Vueling Airlines
04 Mar - 18 Mar	Vueling Airlines
20 Mar - 23 Mar	Vueling Airlines
11 Mar - 23 Mar	Vueling Airlines
11 Mar - 25 Mar	Vueling Airlines
09 Mar - 23 Mar	Vueling Airlines
04 Mar - 11 Mar	Vueling Airlines
05 Mar - 17 Mar	Vueling Airlines
20 Mar - 10 Apr	Vueling Airlines
30 Mar - 18 Apr	Vueling Airlines
08 Mar - 09 Apr	Vueling Airlines
08 Mar - 08 Apr	Vueling Airlines
14 Mar - 11 Apr	Vueling Airlines
19 Mar - 11 Apr	Vueling Airlines
28 Mar - 11 Apr	Vueling Airlines
26 Mar - 12 Apr	Vueling Airlines
20 Mar - 04 Apr	Vueling Airlines
27 Mar - 15 Apr	Vueling Airlines

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 $1090

Return flights