Cheapest return flights from London (LCY) to Buenos Aires (AEP), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
25 Dec 28 Jan Air Dolomiti
07 Dec 14 Dec SWISS
02 Dec 17 Dec SWISS
25 Dec 31 Jan Lufthansa
01 Dec 20 Jan KLM
01 Dec 07 Dec KLM
30 Dec 31 Jan Iberia
14 Dec 29 Dec KLM
09 Dec 30 Dec Iberia
02 Dec 29 Dec Air Dolomiti
28 Dec 28 Jan SWISS
07 Dec 03 Jan Iberia
11 Dec 22 Jan Iberia
03 Dec 19 Dec SWISS
01 Dec 16 Jan SWISS
06 Dec 10 Dec SWISS
04 Dec 03 Jan Iberia
03 Dec 31 Dec SWISS
28 Dec 05 Jan Iberia
14 Dec 23 Dec SWISS
Powered by

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

Book a cheap hotel in Buenos Aires

Cheap car rent in Aeroparque Jorge Newbery

Updated Jul 13, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.