Cheapest return flights from London to Sofia in September from $44

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

Return flights

29 Sep - 08 Oct Ryanair direct
29 Sep - 14 Oct Ryanair direct
29 Sep - 10 Oct Ryanair direct
30 Sep - 21 Oct Ryanair direct
30 Sep - 08 Oct Ryanair direct
25 Sep - 08 Oct Ryanair direct
30 Sep - 14 Oct Ryanair direct
25 Sep - 14 Oct Ryanair direct
29 Sep - 16 Oct Ryanair direct
29 Sep - 09 Oct Ryanair direct
29 Sep - 30 Sep Ryanair
24 Sep - 30 Sep Ryanair
27 Sep - 30 Sep Ryanair
30 Sep - 30 Sep Ryanair
24 Sep - 27 Sep Ryanair
26 Sep - 30 Sep Ryanair
25 Sep - 30 Sep Ryanair
24 Sep - 26 Sep Ryanair
25 Sep - 27 Sep Ryanair
24 Sep - 25 Sep Ryanair

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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