Cheapest return flights from London to Buenos Aires in March from $1148

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

Return flights

25 Mar - 03 Apr LATAM Airlines Group
03 Mar - 15 Mar Air Canada
09 Mar - 24 Mar LATAM Airlines Group
15 Mar - 29 Mar LATAM Airlines Group
09 Mar - 30 Mar LATAM Airlines Group
09 Mar - 15 Mar LATAM Airlines Group
01 Mar - 08 Mar LATAM Airlines Group
14 Mar - 26 Mar LATAM Airlines Group
13 Mar - 27 Mar LATAM Airlines Group
01 Mar - 25 Mar LATAM Airlines Group
02 Mar - 16 Mar LATAM Airlines Group
20 Mar - 04 Apr LATAM Airlines Group
21 Mar - 05 Apr LATAM Airlines Group
30 Mar - 13 Apr LATAM Airlines Group
26 Mar - 04 Apr LATAM Airlines Group
26 Mar - 05 Apr LATAM Airlines Group
26 Mar - 06 Apr LATAM Airlines Group
26 Mar - 07 Apr LATAM Airlines Group
26 Mar - 08 Apr LATAM Airlines Group
28 Mar - 05 Apr LATAM Airlines Group

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

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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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