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

Return flights

01 Dec - 07 Dec	Turkish Airlines
02 Dec - 14 Dec	United
29 Dec - 26 Jan	Lufthansa
26 Dec - 26 Jan	Air India
08 Dec - 30 Dec	Emirates
10 Dec - 02 Jan	Ethiopian Airlines
22 Dec - 01 Jan	Air India
13 Dec - 20 Dec	Turkish Airlines
23 Dec - 28 Dec	Air India
26 Dec - 02 Jan	Ethiopian Airlines
26 Dec - 11 Jan	Air India
11 Dec - 30 Dec	Ethiopian Airlines
16 Dec - 08 Jan	Ethiopian Airlines
19 Dec - 09 Jan	Ethiopian Airlines
24 Dec - 31 Dec	Lufthansa
27 Dec - 03 Jan	Air Canada
18 Dec - 31 Dec	Air India
24 Dec - 01 Jan	Ethiopian Airlines
18 Dec - 30 Dec	Ethiopian Airlines
19 Dec - 31 Dec	Air India

Also check the deals for one-way flights from Newark 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 Newark to Bangkok in December from $1065

Return flights