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

Return flights

29 Dec - 09 Jan	United
15 Dec - 12 Jan	SWISS
05 Dec - 14 Dec	SWISS
16 Dec - 23 Dec	Austrian Airlines
17 Dec - 01 Jan	Austrian Airlines
22 Dec - 16 Jan	Austrian Airlines
17 Dec - 22 Dec	Austrian Airlines
22 Dec - 07 Jan	Austrian Airlines
16 Dec - 30 Dec	British Airways
13 Dec - 03 Jan	SWISS
19 Dec - 10 Jan	Austrian Airlines
17 Dec - 03 Jan	Austrian Airlines
19 Dec - 29 Dec	Austrian Airlines
19 Dec - 05 Jan	Austrian Airlines
19 Dec - 02 Jan	Scandinavian Airlines

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.

Book a cheap hotel in Bucharest

Cheap car rent in Bucharest

Cheapest return flights from Newark to Bucharest in December from $406

Return flights