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

Return flights

24 Sep - 28 Sep	easyJet	direct
15 Sep - 22 Sep	easyJet	direct
15 Sep - 21 Sep	TUI	direct
17 Sep - 21 Sep	easyJet	direct
11 Sep - 15 Sep	easyJet	direct
03 Sep - 10 Sep	Jet2
23 Sep - 28 Sep	easyJet
19 Sep - 21 Sep	Ryanair
28 Sep - 05 Oct	easyJet	direct
14 Sep - 21 Sep	TUI
14 Sep - 21 Sep	easyJet	direct
30 Sep - 05 Oct	Ryanair
20 Sep - 11 Oct	SKY express
20 Sep - 04 Oct	SKY express
27 Sep - 11 Oct	SKY express
27 Sep - 18 Oct	SKY express
25 Sep - 11 Oct	SKY express
25 Sep - 04 Oct	SKY express
18 Sep - 04 Oct	SKY express

Also check the deals for one-way flights from Zakynthos 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 Zakynthos to London in September from 140€

Return flights