Cheapest one-way flights from London to Buenos Aires in December from $640

Best time to book flights for London (LTN) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest one-way flights from London (LTN) to Buenos Aires (AEP) in December 2025 (see full year).

One-Way flights

08 Dec easyJet
12 Dec easyJet
04 Dec easyJet
23 Dec easyJet
01 Dec easyJet
27 Dec easyJet
09 Dec easyJet
15 Dec easyJet
22 Dec easyJet
14 Dec easyJet

Also check the deals for return flights from London to Buenos Aires in December.

Skyscanner

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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