AirHint found the following cheapest return flights from London (LHR) to Buenos Aires (EZE) in October 2025 (see full year).

Return flights

22 Oct - 31 Oct	Avianca
22 Oct - 29 Oct	Avianca
22 Oct - 05 Nov	Avianca
13 Oct - 26 Oct	Avianca
27 Oct - 12 Nov	United
08 Oct - 18 Oct	Avianca
08 Oct - 17 Oct	Avianca
15 Oct - 02 Nov	Avianca
13 Oct - 03 Nov	Avianca
29 Oct - 10 Nov	Avianca
24 Oct - 02 Nov	Avianca
24 Oct - 03 Nov	Avianca
09 Oct - 19 Oct	Avianca
10 Oct - 19 Oct	Avianca
10 Oct - 20 Oct	Avianca
22 Oct - 01 Nov	Avianca
23 Oct - 02 Nov	Avianca
29 Oct - 12 Nov	United
20 Oct - 27 Oct	United
09 Oct - 18 Oct	American Airlines

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

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 October from $893

Return flights