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

Return flights

06 Dec - 14 Dec	Wizz Air UK
04 Dec - 07 Dec	Wizz Air UK
13 Dec - 17 Dec	Wizz Air UK
13 Dec - 11 Jan	Wizz Air UK
10 Dec - 14 Dec	Wizz Air UK
04 Dec - 06 Dec	Wizz Air UK
04 Dec - 11 Dec	Wizz Air UK
13 Dec - 19 Dec	Wizz Air UK
13 Dec - 14 Dec	Wizz Air UK
13 Dec - 14 Jan	Wizz Air UK
04 Dec - 08 Dec	Wizz Air UK
10 Dec - 13 Dec	Wizz Air UK
13 Dec - 10 Jan	Wizz Air UK
14 Dec - 08 Jan	easyJet
17 Dec - 09 Jan	Wizz Air UK
13 Dec - 04 Jan	Wizz Air UK
16 Dec - 04 Jan	Wizz Air UK
30 Dec - 26 Jan	easyJet
15 Dec - 11 Jan	easyJet
25 Dec - 16 Jan	easyJet

Also check the deals for one-way flights from London 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 London to Bucharest in December from 84€

Return flights