69 € Cheap Flights from Porto to Cagliari

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Find the cheapest month or even day of the year to fly to Cagliari

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Flight deals from Porto to Cagliari

Looking for a cheap last-minute deal or the best return flight from Porto Airport to Cagliari Airport? If you want to travel next month, return fares start from 151 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Porto to Cagliari

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to Cagliari flights are currently cheapest in October.

Direct flights from Porto to Cagliari

Porto to Cagliari: Alternative routes

Compare routes from Porto to Cagliari below. You may find an airport to fly into that's cheaper, faster, or easier than Cagliari.

Porto to Cagliari: Flight information

The things to know before you go.
Cheapest flight found69 €
Cheapest month to flyOctober
Average flight time2 hrs, 30 mins
Most popular airlineRyanair
Average flights per week3

Finding cheap flights from Porto to Cagliari: Frequently asked questions

The best price we found for a return flight from Porto to Cagliari is 69 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 30 minutes is the average flight time from Porto to Cagliari.
Ryanair flies direct from Porto to Cagliari.
As of July 2026, there are 3 flights per week flying from Porto to Cagliari.
The cheapest month to fly from Porto to Cagliari is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to Cagliari Airport on Wednesday, 7 October 2026.
Yes – the average flight time is 2 hours and 30 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cagliari but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cagliari is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Ryanair offers the cheapest flight tickets to Cagliari.

Flying from Porto Airport (OPO) to Cagliari Airport (CAG): what you need to know

  • Around 2 hours 30 minutes is how long you can expect to be in the air on a direct flight from Porto Airport to Cagliari Airport.

  • The timezone in Cagliari is UTC+1, which is one hour ahead of Porto.

  • Your OPO to CAG flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Flying during a peak month like August? School holidays and other popular seasons can lead to longer queues and delays at airport checkpoints. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • Ryanair offers direct flights from Porto Airport to Cagliari Airport. Book with this popular carrier, then get ready to see the sights in Cagliari — and maybe even more of Italy if your schedule allows.

  • Ryanair is the top choice for travellers on this route.

  • The carrier with the most consistent on-time arrival rate for OPO to CAG flights is Ryanair.

  • If you want to explore another city along the way, simply deselect 'Direct flights only' when searching for your ticket from Porto Airport to Cagliari Airport. Here are the top stopovers between OPO and CAG:

    • Madrid Airport

    • Barcelona Airport

    • Turin Airport

How to find the cheapest flights from Porto Airport (OPO) to Cagliari Airport (CAG)

  • 39 € is currently the best price for a one-way Porto Airport to Cagliari Airport flight. A return flight starts from 69 €. These fares can change depending on demand.

  • It's often best to book as early as possible if you're looking for cheap tickets from OPO to CAG. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • Organise your trip for May. That's the cheapest month for flights from Porto Airport to Cagliari Airport. If you have flexibility with your dates, try out the 'Whole month' tool to find the cheapest price across every month.

  • Finding cheap flights from OPO to CAG couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

  • Lock in the right flight for you with the help of the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Porto Airport to Cagliari Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Porto Airport (OPO)

  • When it comes to Porto Airport's on-time performance, 75% of flights stick to their scheduled arrival time.

  • To reach Porto Airport from central Porto, it'll take around 20 minutes if you're travelling by car. Of course, this depends on traffic conditions. It's approximately 11 kilometres from the airport to the city centre.

  • The trip when using public transport takes roughly 30 minutes.

  • Get your travels off to a hassle-free start by staying near OPO. Whether you're taking an early flight from Porto Airport to Cagliari Airport or want to avoid feeling rushed, these hotels are the answer:

Arriving at Cagliari Airport (CAG)

When to fly to Cagliari Airport (CAG)

  • The quietest month for a flight from Porto Airport to Cagliari Airport is March, while August is the busiest. Pick the ideal time to go to Cagliari based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Porto Airport to Cagliari Airport for July if you'd like to go to Cagliari during its warmest month. You can expect temperatures of between 20ºC (68ºF) and 35ºC (95ºF).

  • If you want cooler conditions, look for a cheap ticket from OPO to CAG in February. Temperatures average between 4ºC (39ºF) and 16ºC (61ºF) then.

Explore more of Italy

  • Rome is just one of the many cities in Italy waiting to be explored once you've seen Cagliari. Around 418 kilometres away to the north-east, popular attractions include Vatican Museums, St. Peter's Basilica and Saint Peter's Square.

  • If you're ready to explore another well-known destination in Italy, consider Naples, roughly 467 kilometres north-east of Cagliari. Piazza del Plebiscito, Naples National Archaeological Museum and Gulf of Naples are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.