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

Return flights

10 Apr - 12 Apr	Iberia
30 Apr - 07 May	TAP
29 Apr - 05 May	TAP
21 Apr - 28 Apr	TAP
23 Apr - 26 Apr	TAP
17 Apr - 21 Apr	TAP
30 Apr - 03 May	TAP
12 Apr - 15 Apr	TAP
11 Apr - 25 Apr	Iberia
27 Apr - 27 Apr	TAP
11 Apr - 19 Apr	Iberia
09 Apr - 12 Apr	Iberia
02 Apr - 07 Apr	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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from London to Porto in April from 176€

Return flights