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

Return flights

13 Jul - 20 Jul	Ryanair
13 Jul - 19 Jul	Ryanair
13 Jul - 18 Jul	Ryanair
16 Jul - 26 Jul	Ryanair
08 Jul - 16 Jul	Ryanair
16 Jul - 20 Jul	Ryanair
13 Jul - 24 Jul	Ryanair
13 Jul - 08 Aug	Ryanair
10 Jul - 17 Jul	Ryanair
13 Jul - 16 Jul	Ryanair
16 Jul - 21 Jul	Ryanair
30 Jul - 01 Aug	Ryanair
16 Jul - 03 Aug	Ryanair
30 Jul - 07 Aug	Ryanair
30 Jul - 06 Aug	Ryanair
30 Jul - 03 Aug	Ryanair
30 Jul - 04 Aug	Ryanair
31 Jul - 05 Aug	Ryanair
31 Jul - 06 Aug	Ryanair
31 Jul - 07 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 140€

Return flights