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

Return flights

14 Jul - 17 Jul	SWISS
01 Jul - 05 Jul	SWISS
04 Jul - 14 Jul	SWISS
01 Jul - 05 Jul	British Airways	direct
03 Jul - 13 Jul	British Airways	direct
26 Jul - 29 Jul	Air Serbia
14 Jul - 19 Jul	SWISS
02 Jul - 12 Jul	LOT
15 Jul - 31 Jul	LOT
28 Jul - 30 Jul	Lufthansa
30 Jul - 05 Aug	Lufthansa
26 Jul - 02 Aug	Air Serbia
29 Jul - 01 Aug	Lufthansa
30 Jul - 01 Aug	Lufthansa
26 Jul - 04 Aug	Air Serbia
30 Jul - 02 Aug	Lufthansa
31 Jul - 29 Aug	LOT
25 Jul - 22 Aug	Lufthansa
18 Jul - 16 Aug	Lufthansa
31 Jul - 02 Aug	LOT

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

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 Sofia in July from 169€

Return flights