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

Return flights

29 Jul - 03 Aug	Jet2
29 Jul - 04 Aug	Jet2
29 Jul - 02 Aug	Jet2
29 Jul - 05 Aug	Jet2
29 Jul - 07 Aug	Jet2
29 Jul - 12 Aug	Jet2
31 Jul - 04 Aug	Jet2
30 Jul - 31 Jul	Jet2
31 Jul - 02 Aug	Jet2
31 Jul - 07 Aug	Jet2
29 Jul - 26 Aug	Jet2
28 Jul - 31 Jul	Jet2
28 Jul - 30 Jul	Jet2
30 Jul - 31 Jul	Ryanair	direct
29 Jul - 29 Jul	Ryanair
28 Jul - 28 Jul	Jet2
28 Jul - 31 Jul	Ryanair	direct
28 Jul - 30 Jul	Ryanair	direct

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 211€

Return flights