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

Return flights

09 Mar - 26 Mar	Air Canada
02 Mar - 16 Mar	Air Canada
09 Mar - 16 Mar	Air Canada
05 Mar - 24 Mar	Air Canada
04 Mar - 23 Mar	Air Canada
18 Mar - 23 Mar	Air Canada
02 Mar - 23 Mar	Air Canada
18 Mar - 27 Mar	Air Canada
14 Mar - 26 Mar	Air Canada
10 Mar - 20 Mar	Air Canada
03 Mar - 15 Apr	Air Canada
10 Mar - 10 Apr	Iberia
31 Mar - 14 Apr	Air France
28 Mar - 11 Apr	KLM
28 Mar - 10 Apr	Delta
27 Mar - 17 Apr	British Airways
27 Mar - 13 Apr	British Airways

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from London to Buenos Aires in March from $946

Return flights