We have prepared for you the list of the cheapest deals for Ryanair flight from Lille (LIL) to Porto (OPO) by the month of departure.

Cheapest flights for September 2025

Departure date	Cheapest price
22 Sep 2025	25 €	Book Now
29 Sep 2025	31 €	Book Now
15 Sep 2025	37 €	Book Now
19 Sep 2025	41 €	Book Now
26 Sep 2025	53 €	Book Now

Cheapest flights for October 2025

Departure date	Cheapest price
06 Oct 2025	30 €	Book Now
13 Oct 2025	30 €	Book Now
29 Oct 2025	30 €	Book Now
31 Oct 2025	30 €	Book Now
27 Oct 2025	40 €	Book Now

Cheapest flights for November 2025

Departure date	Cheapest price
17 Nov 2025	30 €	Book Now
21 Nov 2025	30 €	Book Now
24 Nov 2025	30 €	Book Now
10 Nov 2025	35 €	Book Now
28 Nov 2025	36 €	Book Now

Cheapest flights for December 2025

Departure date	Cheapest price
05 Dec 2025	33 €	Book Now
15 Dec 2025	45 €	Book Now
12 Dec 2025	67 €	Book Now
08 Dec 2025	73 €	Book Now
01 Dec 2025	73 €	Book Now

Cheapest flights for January 2026

Departure date	Cheapest price
30 Jan 2026	50 €	Book Now
23 Jan 2026	50 €	Book Now
19 Jan 2026	58 €	Book Now
16 Jan 2026	58 €	Book Now
12 Jan 2026	58 €	Book Now

Cheapest flights for February 2026

Departure date	Cheapest price
02 Feb 2026	58 €	Book Now
06 Feb 2026	63 €	Book Now
13 Feb 2026	67 €	Book Now
09 Feb 2026	76 €	Book Now
23 Feb 2026	82 €	Book Now

Cheapest flights for March 2026

Departure date	Cheapest price
13 Mar 2026	50 €	Book Now
06 Mar 2026	50 €	Book Now
23 Mar 2026	51 €	Book Now
16 Mar 2026	51 €	Book Now
20 Mar 2026	54 €	Book Now

The deals are updated by AirHint regularly. Please keep in mind that the price may go up as tickets are purchased by other travellers. Only the cheapest one-way flights are offered. Book fast to secure these cheap Ryanair prices.

Ryanair deals from Lille to all destinations

Ryanair deals from Porto to all destinations

Cheapest Ryanair flights Lille to Porto from 25€