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

Return flights

05 Dec - 14 Dec	Oman Air
05 Dec - 08 Dec	Oman Air
07 Dec - 14 Dec	Oman Air
01 Dec - 14 Dec	Oman Air
07 Dec - 19 Dec	Oman Air
07 Dec - 21 Dec	Oman Air
03 Dec - 28 Dec	Austrian Airlines
10 Dec - 22 Dec	Air China
02 Dec - 14 Dec	Air China
03 Dec - 14 Dec	Air China
10 Dec - 30 Jan	Kuwait Airways
27 Dec - 18 Jan	Wizz Air Malta
16 Dec - 19 Jan	Etihad Airways
15 Dec - 29 Jan	Etihad Airways
27 Dec - 16 Jan	Wizz Air Malta
27 Dec - 17 Jan	Wizz Air Malta
29 Dec - 29 Jan	Etihad Airways
29 Dec - 26 Jan	Etihad Airways
07 Dec - 08 Jan	Oman Air
15 Dec - 16 Jan	Etihad Airways

Also check the deals for one-way flights from Rome 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 Rome to Bangkok in December from 421€

Return flights