Cheapest return flights from London to Sofia in September from 170€

AirHint found the following cheapest return flights from London (LHR) to Sofia (SOF) in September 2026 (see full year).

Return flights

19 Sep - 26 Sep LOT
24 Sep - 30 Sep LOT
25 Sep - 29 Sep LOT
27 Sep - 30 Sep LOT
14 Sep - 30 Sep LOT
26 Sep - 30 Sep LOT
22 Sep - 26 Sep LOT
26 Sep - 29 Sep LOT
10 Sep - 21 Sep LOT
18 Sep - 27 Sep LOT
29 Sep - 05 Oct LOT
30 Sep - 04 Oct LOT
30 Sep - 05 Oct LOT
28 Sep - 01 Oct LOT
30 Sep - 05 Oct British Airways direct
28 Sep - 05 Oct LOT
28 Sep - 05 Oct British Airways direct
30 Sep - 04 Oct British Airways direct

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

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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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