AirHint found the following cheapest return flights from London (LON) to Sofia (SOF) in July 2025 (see full year).

Return flights

08 Jul - 17 Jul	Ryanair
08 Jul - 14 Jul	Ryanair
09 Jul - 30 Jul	Pegasus Airlines
08 Jul - 22 Jul	Ryanair
08 Jul - 16 Jul	Ryanair
03 Jul - 11 Jul	Pegasus Airlines
06 Jul - 23 Jul	Pegasus Airlines
09 Jul - 19 Jul	Pegasus Airlines
10 Jul - 24 Jul	Pegasus Airlines
09 Jul - 12 Jul	Pegasus Airlines
29 Jul - 02 Aug	Ryanair
21 Jul - 01 Aug	Jet2
31 Jul - 02 Aug	Wizz Air UK
29 Jul - 01 Aug	Ryanair
30 Jul - 02 Aug	Ryanair
21 Jul - 02 Aug	Jet2
28 Jul - 02 Aug	Ryanair
29 Jul - 07 Aug	Ryanair
30 Jul - 01 Aug	Wizz Air
28 Jul - 04 Aug	Ryanair

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 103€

Return flights