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

Return flights

03 Dec - 17 Dec	British Airways
01 Dec - 07 Dec	British Airways
01 Dec - 28 Jan	British Airways
01 Dec - 29 Jan	British Airways
02 Dec - 16 Dec	British Airways
05 Dec - 11 Dec	British Airways
29 Dec - 19 Jan	British Airways
03 Dec - 22 Jan	British Airways
31 Dec - 21 Jan	British Airways
04 Dec - 22 Jan	KLM
30 Dec - 30 Jan	British Airways
30 Dec - 27 Jan	British Airways
09 Dec - 28 Dec	Lufthansa
05 Dec - 19 Dec	Ryanair
08 Dec - 22 Jan	Lufthansa
07 Dec - 14 Jan	Air France
06 Dec - 11 Dec	British Airways
11 Dec - 17 Dec	Ryanair
01 Dec - 23 Dec	Emirates
26 Dec - 28 Dec	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 500€

Return flights