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

Return flights

25 Jun - 29 Jun	Iberia
23 Jun - 30 Jun	Iberia
12 Jun - 19 Jun	TAP
10 Jun - 17 Jun	TAP
02 Jun - 07 Jun	TAP
04 Jun - 08 Jun	TAP
12 Jun - 15 Jun	TAP
10 Jun - 14 Jun	TAP
05 Jun - 12 Jun	TAP
07 Jun - 14 Jun	TAP
27 Jun - 11 Jul	TAP
26 Jun - 03 Jul	Iberia

Also check the deals for one-way flights from London to Porto in June.

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 June from 175€

Return flights