Cheapest return flights from London to Sofia in September from 32€

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

Return flights

23 Sep - 08 Oct Ryanair direct
23 Sep - 14 Oct Ryanair direct
23 Sep - 06 Oct Ryanair direct
23 Sep - 12 Oct Ryanair direct
23 Sep - 11 Oct Ryanair direct
25 Sep - 08 Oct Ryanair direct
25 Sep - 14 Oct Ryanair direct
25 Sep - 06 Oct Ryanair direct
25 Sep - 12 Oct Ryanair direct
25 Sep - 11 Oct Ryanair direct
03 Sep - 18 Sep Ryanair direct
23 Sep - 24 Sep Ryanair direct
03 Sep - 24 Sep Ryanair direct
15 Sep - 18 Sep Ryanair direct
10 Sep - 18 Sep Ryanair direct
02 Sep - 18 Sep Ryanair direct
15 Sep - 24 Sep Ryanair direct
10 Sep - 24 Sep Ryanair direct
16 Sep - 18 Sep Ryanair direct
11 Sep - 18 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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Feel free to contact us with any feedback or request another flight research.