AirHint found the following cheapest one-way flights from London (STN) to Keffallinia (EFL) in July 2025 (see full year).

One-Way flights

09 Jul	Ryanair	direct
23 Jul	Ryanair	direct
30 Jul	Ryanair	direct
13 Jul	TUI	direct
14 Jul	Jet2	direct
10 Jul	TUI	direct
17 Jul	TUI	direct
22 Jul	Ryanair
29 Jul	easyJet
12 Jul	Jet2	direct

Also check the deals for return flights from London to Keffallinia in July.

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 one-way flights from London to Keffallinia in July from $48

One-Way flights