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

Return flights

22 Apr - 28 Apr	Luxair
17 Apr - 20 Apr	Luxair
17 Apr - 21 Apr	Luxair
17 Apr - 24 Apr	Luxair
27 Apr - 04 May	Luxair
16 Apr - 18 Apr	Luxair
24 Apr - 27 Apr	Luxair
15 Apr - 17 Apr	Luxair
21 Apr - 27 Apr	Luxair
23 Apr - 29 Apr	Luxair
22 Apr - 25 Apr	Luxair
30 Apr - 05 May	SWISS
30 Apr - 04 May	Luxair
28 Apr - 05 May	Luxair
30 Apr - 02 May	Luxair
26 Apr - 05 May	Luxair
29 Apr - 02 May	Luxair
29 Apr - 03 May	Luxair

Also check the deals for one-way flights from London to Porto 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 Porto in April from 233€

Return flights