Cheapest return LHR–AEP flights, May

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

Return flights

16 May - 27 May Avianca
13 May - 26 May Avianca
13 May - 27 May Avianca
19 May - 27 May Avianca
21 May - 28 May Avianca
18 May - 02 Jun Avianca
21 May - 06 Jun Avianca
19 May - 02 Jun Avianca
21 May - 26 May Avianca
18 May - 27 May Avianca
19 May - 26 May Avianca
08 May - 27 May Avianca
09 May - 27 May Avianca
25 May - 06 Jun Avianca
31 May - 25 Jun Avianca
13 May - 01 Jun Lufthansa
21 May - 05 Jun Air France
27 May - 13 Jun Vueling Airlines
18 May - 15 Jun LATAM Airlines Group
08 May - 09 Jun Vueling Airlines

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

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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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