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

Return flights

19 May - 09 Jun	British Airways
12 May - 02 Jun	British Airways
26 May - 04 Jun	British Airways
11 May - 22 May	Avianca
11 May - 23 May	Avianca
06 May - 13 May	Avianca
13 May - 20 May	Avianca
11 May - 19 May	Avianca
06 May - 18 May	Avianca
10 May - 20 May	Avianca
14 May - 17 May	Avianca
15 May - 07 Jun	Turkish Airlines
01 May - 01 Jun	British Airways
12 May - 21 May	Turkish Airlines
28 May - 07 Jun	British Airways
04 May - 09 May	Turkish Airlines
28 May - 06 Jun	Turkish Airlines
30 May - 13 Jun	British Airways
23 May - 06 Jun	Avianca
21 May - 01 Jun	KLM

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

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from London to Buenos Aires in May from 767€

Return flights