Cheapest return flights from London to Sofia in September from 73€

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

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

Return flights

26 Sep - 10 Oct Ryanair direct
26 Sep - 03 Oct Ryanair direct
26 Sep - 09 Oct Ryanair direct
26 Sep - 02 Oct Ryanair direct
26 Sep - 14 Oct Ryanair direct
22 Sep - 10 Oct Ryanair direct
22 Sep - 03 Oct Ryanair direct
22 Sep - 09 Oct Ryanair direct
22 Sep - 02 Oct Ryanair direct
11 Sep - 02 Oct Ryanair direct
26 Sep - 30 Sep Ryanair direct
22 Sep - 25 Sep Ryanair direct
22 Sep - 30 Sep Ryanair direct
11 Sep - 25 Sep Ryanair direct
11 Sep - 30 Sep Ryanair direct
12 Sep - 25 Sep Ryanair direct
12 Sep - 30 Sep Ryanair direct
15 Sep - 25 Sep Ryanair direct
15 Sep - 30 Sep Ryanair direct
16 Sep - 25 Sep Ryanair direct

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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