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

Return flights

20 Apr - 27 Apr	Iberia
18 Apr - 21 Apr	Vueling Airlines
15 Apr - 16 Apr	Vueling Airlines
15 Apr - 28 Apr	Vueling Airlines
09 Apr - 13 Apr	Vueling Airlines
15 Apr - 20 Apr	TAP
18 Apr - 27 Apr	TAP
21 Apr - 27 Apr	TAP
26 Apr - 30 Apr	TAP
13 Apr - 23 Apr	TAP
30 Apr - 05 May	TAP
30 Apr - 03 May	TAP
30 Apr - 10 May	TAP
15 Apr - 05 May	Vueling Airlines
21 Apr - 06 May	Vueling Airlines
22 Apr - 05 May	Vueling Airlines
22 Apr - 06 May	Vueling Airlines
18 Apr - 05 May	Vueling Airlines
18 Apr - 06 May	Vueling Airlines
28 Apr - 01 May	Iberia

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 $190

Return flights