AirHint found the following cheapest return flights from London (LCY) to Budapest (BUD) in December 2025 (see full year).

Return flights

01 Dec - 31 Dec	KLM
01 Dec - 05 Dec	KLM
05 Dec - 09 Dec	SWISS
09 Dec - 12 Dec	SWISS
11 Dec - 15 Dec	SWISS
05 Dec - 08 Dec	SWISS
01 Dec - 04 Dec	KLM
10 Dec - 15 Dec	SWISS
02 Dec - 05 Dec	KLM
09 Dec - 11 Dec	SWISS
31 Dec - 01 Jan	SWISS
30 Dec - 05 Jan	KLM
22 Dec - 06 Jan	SWISS
26 Dec - 01 Jan	SWISS
29 Dec - 04 Jan	KLM
31 Dec - 04 Jan	KLM
22 Dec - 05 Jan	SWISS
31 Dec - 03 Jan	SWISS
30 Dec - 03 Jan	SWISS
26 Dec - 02 Jan	Lufthansa

Also check the deals for one-way flights from London to Budapest 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 Budapest

Cheap car rent in Budapest

Cheapest return flights from London to Budapest in December from 222€

Return flights