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

Return flights

16 Mar - 25 Mar	Lufthansa
23 Mar - 30 Mar	KLM
08 Mar - 18 Mar	Lufthansa
24 Mar - 07 Apr	KLM
02 Mar - 11 Mar	Iberia
04 Mar - 18 Mar	Iberia
14 Mar - 24 Mar	ITA Airways
10 Mar - 19 Mar	Lufthansa
04 Mar - 12 Mar	British Airways
23 Mar - 28 Apr	KLM
06 Mar - 18 Mar	SWISS
30 Mar - 13 Apr	KLM
08 Mar - 17 Mar	ITA Airways
28 Mar - 02 Apr	ITA Airways
25 Mar - 12 Apr	ITA Airways
13 Mar - 04 Apr	SWISS
20 Mar - 04 Apr	SWISS
30 Mar - 12 Apr	KLM
21 Mar - 09 Apr	KLM
28 Mar - 05 Apr	KLM

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.

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

Return flights