Cheapest one-way flights from Londonderry to Porto in September from $259

AirHint found the following cheapest one-way flights from Londonderry (LDY) to Porto (OPO) in September 2025 (see full year).

One-Way flights

27 Sep Loganair

Also check the deals for return flights from Londonderry to Porto in September.

Skyscanner

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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