AirHint found the following cheapest return flights from Thessaloniki (SKG) to London (LGW) in September 2025 (see full year).

Return flights

20 Sep - 23 Sep	Ryanair
17 Sep - 23 Sep	easyJet	direct
18 Sep - 23 Sep	easyJet	direct
11 Sep - 14 Sep	Ryanair
18 Sep - 24 Sep	easyJet
18 Sep - 24 Sep	easyJet	direct
17 Sep - 21 Sep	easyJet	direct
09 Sep - 11 Sep	easyJet	direct
24 Sep - 29 Sep	Ryanair
25 Sep - 01 Oct	Aegean Airlines
23 Sep - 30 Sep	easyJet
29 Sep - 03 Oct	Turkish Airlines
25 Sep - 01 Oct	easyJet	direct
29 Sep - 03 Oct	easyJet	direct
25 Sep - 15 Oct	SKY express
29 Sep - 15 Oct	SKY express
28 Sep - 15 Oct	SKY express
26 Sep - 15 Oct	SKY express
30 Sep - 15 Oct	SKY express
25 Sep - 07 Oct	SKY express

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

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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Cheapest return flights from Thessaloniki to London in September from $173

Return flights