Cheapest return flights from Lille to Porto in September from $134

Best time to book flights for Lille (LIL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Lille (LIL) to Porto (OPO) in September 2025 (see full year).

Return flights

29 Sep - 20 Oct Ryanair direct
08 Sep - 29 Sep Ryanair direct
26 Sep - 06 Oct Ryanair direct
29 Sep - 06 Oct Ryanair direct
08 Sep - 19 Sep Ryanair direct
19 Sep - 06 Oct Ryanair direct
15 Sep - 06 Oct Ryanair direct
26 Sep - 03 Oct Ryanair direct
26 Sep - 29 Sep Ryanair direct
29 Sep - 03 Oct Ryanair direct
19 Sep - 03 Oct Ryanair direct
19 Sep - 29 Sep Ryanair direct
15 Sep - 03 Oct Ryanair direct
15 Sep - 29 Sep Ryanair direct
08 Sep - 12 Sep Ryanair direct
15 Sep - 19 Sep Ryanair direct
05 Sep - 19 Sep Ryanair direct
08 Sep - 15 Sep Ryanair direct
05 Sep - 08 Sep Ryanair direct

Also check the deals for one-way flights from Lille 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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