Cheapest one-way flights from London to Sofia in September from $85

AirHint found the following cheapest one-way flights from London (LHR) to Sofia (SOF) in September 2025 (see full year).

One-Way flights

12 Sep British Airways direct
11 Sep British Airways
08 Sep British Airways
15 Sep British Airways
01 Sep British Airways
21 Sep Brussels Airlines
30 Sep British Airways
22 Sep British Airways
09 Sep British Airways
07 Sep British Airways

Also check the deals for return 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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