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

Return flights

09 Mar - 16 Mar	Iberia For Level
09 Mar - 19 Mar	Iberia For Level
09 Mar - 17 Mar	Iberia For Level
22 Mar - 16 Apr	Air Canada
14 Mar - 28 Mar	Air Canada
06 Mar - 27 Mar	Air Canada
09 Mar - 12 Mar	Iberia For Level
27 Mar - 13 Apr	Air Canada
10 Mar - 19 Mar	Iberia For Level
07 Mar - 15 Mar	Iberia For Level
02 Mar - 12 Mar	Iberia For Level
06 Mar - 21 Mar	Air Canada
27 Mar - 09 Apr	Air Canada
26 Mar - 11 Apr	Air Canada
25 Mar - 15 Apr	Lufthansa
23 Mar - 28 Apr	KLM
30 Mar - 13 Apr	Air France
23 Mar - 05 Apr	Delta
30 Mar - 12 Apr	Delta
24 Mar - 12 Apr	Delta

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 $1034

Return flights