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

Return flights

15 Dec - 30 Jan	Aerolineas Argentinas
02 Dec - 23 Dec	Qatar Airways
27 Dec - 16 Jan	SWISS
23 Dec - 24 Jan	GOL Linhas Aéreas
23 Dec - 17 Jan	GOL Linhas Aéreas
01 Dec - 20 Dec	Qatar Airways
01 Dec - 24 Dec	Qatar Airways
23 Dec - 15 Jan	GOL Linhas Aéreas
01 Dec - 22 Dec	Qatar Airways
30 Dec - 22 Jan	Qatar Airways
23 Dec - 14 Jan	GOL Linhas Aéreas
23 Dec - 16 Jan	GOL Linhas Aéreas
22 Dec - 31 Jan	Qatar Airways
24 Dec - 17 Jan	Qatar Airways
19 Dec - 31 Dec	Qatar Airways

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

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 Buenos Aires to Bangkok in December from 2236€

Return flights