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

Cheapest flights for March 2026

Departure date	Cheapest price
31 Mar 2026	30 €	Book Now

Cheapest flights for April 2026

Departure date	Cheapest price
01 Apr 2026	25 €	Book Now
17 Apr 2026	25 €	Book Now
10 Apr 2026	28 €	Book Now
15 Apr 2026	53 €	Book Now
24 Apr 2026	53 €	Book Now

Cheapest flights for May 2026

Departure date	Cheapest price
13 May 2026	82 €	Book Now
27 May 2026	85 €	Book Now
06 May 2026	93 €	Book Now
08 May 2026	94 €	Book Now
12 May 2026	102 €	Book Now

Cheapest flights for June 2026

Departure date	Cheapest price
17 Jun 2026	105 €	Book Now
12 Jun 2026	107 €	Book Now
24 Jun 2026	111 €	Book Now
26 Jun 2026	121 €	Book Now
16 Jun 2026	124 €	Book Now

Cheapest flights for July 2026

Departure date	Cheapest price
17 Jul 2026	98 €	Book Now
22 Jul 2026	111 €	Book Now
15 Jul 2026	111 €	Book Now
08 Jul 2026	119 €	Book Now
10 Jul 2026	121 €	Book Now

Cheapest flights for August 2026

Departure date	Cheapest price
07 Aug 2026	146 €	Book Now
12 Aug 2026	160 €	Book Now
26 Aug 2026	160 €	Book Now
05 Aug 2026	161 €	Book Now
14 Aug 2026	161 €	Book Now

Cheapest flights for September 2026

Departure date	Cheapest price
25 Sep 2026	58 €	Book Now
23 Sep 2026	63 €	Book Now
22 Sep 2026	75 €	Book Now
18 Sep 2026	76 €	Book Now
29 Sep 2026	82 €	Book Now

Cheapest flights for October 2026

Departure date	Cheapest price
09 Oct 2026	50 €	Book Now
06 Oct 2026	58 €	Book Now
07 Oct 2026	58 €	Book Now
02 Oct 2026	64 €	Book Now
16 Oct 2026	67 €	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 Porto to all destinations

Ryanair deals from Cagliari to all destinations

Cheapest Ryanair flights Porto to Cagliari from 25€