AirHint found the following cheapest return flights from London (LHR) to Santorini (Thira) (JTR) in April 2026 (see full year).

Return flights

18 Apr - 25 Apr	Lufthansa
12 Apr - 17 Apr	British Airways	direct
16 Apr - 23 Apr	British Airways	direct
27 Apr - 03 May	British Airways	direct
16 Apr - 20 Apr	British Airways	direct
17 Apr - 20 Apr	British Airways	direct
21 Apr - 09 May	Aegean Airlines
07 Apr - 13 Apr	Aegean Airlines
14 Apr - 22 Apr	Aegean Airlines
01 Apr - 04 Apr	Aegean Airlines
04 Apr - 07 Apr	Aegean Airlines
01 Apr - 06 Apr	Aegean Airlines

Also check the deals for one-way flights from London to Santorini (Thira) in April.

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 London to Santorini (Thira) in April from $234

Return flights