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

Return flights

31 Dec - 24 Jan	Austrian Airlines
10 Dec - 16 Jan	British Airways
30 Dec - 24 Jan	British Airways
29 Dec - 24 Jan	Austrian Airlines
28 Dec - 17 Jan	Austrian Airlines
14 Dec - 08 Jan	SWISS
07 Dec - 21 Dec	SWISS
15 Dec - 09 Jan	SWISS
15 Dec - 08 Jan	SWISS
15 Dec - 10 Jan	Icelandair
16 Dec - 10 Jan	Icelandair
01 Dec - 27 Dec	Austrian Airlines
05 Dec - 27 Dec	SWISS
02 Dec - 27 Dec	British Airways
15 Dec - 26 Dec	SWISS
17 Dec - 31 Dec	Spirit Airlines
26 Dec - 30 Dec	Austrian Airlines
16 Dec - 27 Dec	British Airways
23 Dec - 29 Dec	LOT
22 Dec - 26 Dec	Icelandair

Also check the deals for one-way flights from Newark to Bucharest 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 Bucharest in December from 359€

Return flights