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

Return flights

12 Apr - 16 Apr	Iberia
19 Apr - 21 Apr	Iberia
06 Apr - 08 Apr	Iberia
19 Apr - 22 Apr	Iberia
13 Apr - 16 Apr	Iberia
07 Apr - 09 Apr	Iberia
13 Apr - 15 Apr	Iberia
07 Apr - 13 Apr	Iberia
28 Apr - 01 May	Iberia
20 Apr - 20 May	Iberia
20 Apr - 19 May	Iberia
14 Apr - 21 Apr	Iberia
15 Apr - 20 Apr	Luxair
24 Apr - 01 May	Iberia
23 Apr - 01 May	Iberia
29 Apr - 05 May	Iberia
14 Apr - 04 May	Iberia
30 Apr - 04 May	Iberia
29 Apr - 03 May	Luxair
27 Apr - 04 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 208€

Return flights