Cheapest return flights from London to Sofia in September from $203

Best time to book flights for London (LGW) to Sofia (SOF) flights at AirHint

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

Return flights

17 Sep - 23 Sep Vueling Airlines
06 Sep - 13 Sep Vueling Airlines
09 Sep - 13 Sep easyJet
10 Sep - 13 Sep easyJet
10 Sep - 15 Sep easyJet
03 Sep - 07 Sep Vueling Airlines
15 Sep - 19 Sep Vueling Airlines
06 Sep - 12 Sep Vueling Airlines
08 Sep - 12 Sep easyJet
01 Sep - 06 Sep easyJet

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

Skyscanner

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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