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

Return flights

12 Mar - 17 Mar	ITA Airways
10 Mar - 18 Mar	SWISS
09 Mar - 18 Mar	ITA Airways
09 Mar - 15 Mar	ITA Airways
09 Mar - 16 Mar	ITA Airways
04 Mar - 11 Mar	British Airways
18 Mar - 31 Mar	Lufthansa
09 Mar - 19 Mar	Lufthansa
16 Mar - 19 Mar	Lufthansa
16 Mar - 25 Mar	Lufthansa
23 Mar - 28 Apr	ITA Airways
30 Mar - 26 Apr	ITA Airways
16 Mar - 06 Apr	Lufthansa
23 Mar - 18 Apr	ITA Airways
16 Mar - 03 Apr	ITA Airways
17 Mar - 01 Apr	SWISS
30 Mar - 16 Apr	ITA Airways
31 Mar - 16 Apr	ITA Airways
30 Mar - 17 Apr	ITA Airways
15 Mar - 06 Apr	Lufthansa

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 870€

Return flights