Cheapest return flights from London to Buenos Aires in December from 978€

AirHint found the following cheapest return flights from London (LGW) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

01 Dec - 11 Dec Air Europa
07 Dec - 17 Dec Air Europa
04 Dec - 11 Dec Vueling Airlines
01 Dec - 15 Dec Air Europa
01 Dec - 17 Dec Air Europa
05 Dec - 14 Dec Air Europa
06 Dec - 13 Dec Vueling Airlines
02 Dec - 10 Dec Vueling Airlines
04 Dec - 21 Dec Vueling Airlines
08 Dec - 15 Dec easyJet
11 Dec - 24 Jan Wizz Air UK
01 Dec - 31 Jan easyJet
13 Dec - 24 Jan Wizz Air UK
05 Dec - 18 Jan TAP
15 Dec - 22 Jan easyJet
29 Dec - 19 Jan TAP
31 Dec - 21 Jan Vueling Airlines
29 Dec - 17 Jan TAP
29 Dec - 15 Jan TAP
09 Dec - 13 Jan Air Europa

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

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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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