Cheapest return flights from Sofia to London in September from $76

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

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

Return flights

25 Sep - 08 Oct Ryanair direct
27 Sep - 08 Oct Ryanair direct
25 Sep - 02 Oct Ryanair direct
25 Sep - 07 Oct Ryanair direct
25 Sep - 03 Oct Ryanair direct
25 Sep - 04 Oct Ryanair direct
25 Sep - 10 Oct Ryanair direct
25 Sep - 14 Oct Ryanair direct
25 Sep - 09 Oct Ryanair direct
25 Sep - 11 Oct Ryanair direct
18 Sep - 24 Sep Ryanair direct
17 Sep - 24 Sep Ryanair direct
16 Sep - 24 Sep Ryanair direct
25 Sep - 26 Sep Ryanair direct
25 Sep - 27 Sep Ryanair direct
24 Sep - 24 Sep Ryanair direct
21 Sep - 24 Sep Ryanair direct
13 Sep - 16 Sep Ryanair direct
18 Sep - 23 Sep Ryanair direct
13 Sep - 24 Sep Ryanair direct

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