AirHint found the following cheapest return flights from London (LCY) to Lisbon (LIS) in April 2026 (see full year).

Return flights

21 Apr - 23 Apr	SWISS
24 Apr - 27 Apr	Luxair
07 Apr - 14 Apr	SWISS
28 Apr - 13 May	SWISS
14 Apr - 17 Apr	SWISS
24 Apr - 26 Apr	Luxair
30 Apr - 04 May	Luxair
17 Apr - 19 Apr	Luxair
06 Apr - 14 Apr	SWISS
13 Apr - 16 Apr	Lufthansa
12 Apr - 16 Apr	SWISS
29 Apr - 07 May	Lufthansa
09 Apr - 14 Apr	Lufthansa
27 Apr - 01 May	SWISS
30 Apr - 05 May	KLM
25 Apr - 01 May	SWISS
27 Apr - 02 May	SWISS
25 Apr - 10 May	SWISS

Also check the deals for one-way flights from London to Lisbon 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 Lisbon in April from $301

Return flights