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

Return flights

07 Dec - 21 Dec	Air France
02 Dec - 16 Dec	Air France
03 Dec - 17 Dec	Air France
01 Dec - 17 Dec	Air France
08 Dec - 18 Dec	KLM
06 Dec - 21 Dec	Air France
06 Dec - 20 Dec	Air France
01 Dec - 11 Dec	Air France
02 Dec - 18 Dec	Air France
01 Dec - 14 Dec	Air France
31 Dec - 21 Jan	Air France
30 Dec - 20 Jan	KLM
05 Dec - 30 Jan	KLM
01 Dec - 07 Jan	British Airways
24 Dec - 27 Jan	Air France
29 Dec - 20 Jan	Etihad Airways
23 Dec - 20 Jan	Air France
30 Dec - 30 Jan	KLM
28 Dec - 17 Jan	Etihad Airways
30 Dec - 13 Jan	KLM

Also check the deals for one-way flights from Newcastle 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 Newcastle to Bangkok in December from $840

Return flights