Cheapest return flights from London to Buenos Aires in May from $1142

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

Return flights

07 May - 17 May Ryanair
11 May - 20 May Ryanair
07 May - 13 May Ryanair
06 May - 22 May Ryanair
16 May - 22 May Ryanair
06 May - 10 May Ryanair
14 May - 31 May Ryanair
15 May - 25 May Ryanair
01 May - 16 Jun Ryanair
06 May - 13 May Ryanair
16 May - 20 May Ryanair
30 May - 13 Jun Ryanair
29 May - 13 Jun Turkish Airlines
23 May - 25 Jun Ryanair
31 May - 10 Jun Ryanair
30 May - 06 Jun Ryanair
31 May - 09 Jun Ryanair
23 May - 06 Jun Ryanair

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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