AirHint found the following cheapest return flights from London (LCY) to Sofia (SOF) in March 2026 (see full year).

Return flights

04 Mar - 17 Mar	SWISS
13 Mar - 16 Mar	Lufthansa
05 Mar - 09 Mar	Lufthansa
14 Mar - 23 Mar	SWISS
30 Mar - 03 Apr	SWISS
11 Mar - 15 Mar	SWISS
23 Mar - 27 Mar	Lufthansa
18 Mar - 22 Mar	SWISS
19 Mar - 22 Mar	SWISS
03 Mar - 08 Mar	SWISS
12 Mar - 15 Mar	SWISS
30 Mar - 06 Apr	SWISS
29 Mar - 03 Apr	ITA Airways
31 Mar - 05 Apr	ITA Airways
31 Mar - 04 Apr	KLM
30 Mar - 04 Apr	KLM

Also check the deals for one-way flights from London to Sofia in March.

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 Sofia

Cheap car rent in Sofia

Cheapest return flights from London to Sofia in March from 205€

Return flights