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

Return flights

04 Mar - 23 Mar	Vueling Airlines
11 Mar - 23 Mar	Vueling Airlines
04 Mar - 18 Mar	Vueling Airlines
04 Mar - 19 Mar	Vueling Airlines
05 Mar - 19 Mar	Vueling Airlines
05 Mar - 18 Mar	Vueling Airlines
11 Mar - 17 Mar	Air Europa
03 Mar - 18 Mar	easyJet
09 Mar - 30 Mar	easyJet
16 Mar - 24 Mar	easyJet
30 Mar - 13 Apr	easyJet
19 Mar - 15 Apr	Vueling Airlines
19 Mar - 30 Apr	Vueling Airlines
19 Mar - 08 Apr	Vueling Airlines
23 Mar - 21 Apr	Vueling Airlines
23 Mar - 28 Apr	Vueling Airlines
30 Mar - 15 Apr	easyJet
29 Mar - 26 Apr	easyJet
05 Mar - 10 Apr	Vueling Airlines
16 Mar - 06 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 $1038

Return flights