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Cheap Flights from Porto (OPO) to Cagliari (CAG)

Compare Porto to Cagliari flight deals

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 to Cagliari? Find the lowest prices on one-way and return tickets right here.
Cagliari.$118 per passenger.Departing Thu, 23 Oct, returning Thu, 30 Oct.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Porto on Thu, 23 Oct, arriving in Cagliari.Inbound direct flight with Ryanair departs from Cagliari on Thu, 30 Oct, arriving in Porto.Price includes taxes and charges.From $118, select.
Cagliari.$180 per passenger.Departing Thu, 23 Oct, returning Sat, 8 Nov.Return flight with Ryanair and Vueling Airlines.Outbound indirect flight with Ryanair, departs from Porto on Thu, 23 Oct, arriving in Cagliari.Inbound indirect flight with Vueling Airlines, departs from Cagliari on Sat, 8 Nov, arriving in Porto.Price includes taxes and charges.From $180, select.
Cagliari.$191 per passenger.Departing Tue, 23 Sep, returning Sun, 12 Oct.Return flight with Ryanair and Vueling Airlines.Outbound indirect flight with Ryanair, departs from Porto on Tue, 23 Sep, arriving in Cagliari.Inbound indirect flight with Vueling Airlines, departs from Cagliari on Sun, 12 Oct, arriving in Porto.Price includes taxes and charges.From $191, select.
Cagliari.$225 per passenger.Departing Tue, 23 Sep, returning Thu, 2 Oct.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Porto on Tue, 23 Sep, arriving in Cagliari.Inbound direct flight with Ryanair departs from Cagliari on Thu, 2 Oct, arriving in Porto.Price includes taxes and charges.From $225, select.
Cagliari.$233 per passenger.Departing Tue, 23 Sep, returning Tue, 30 Sep.Return flight with Ryanair and Vueling Airlines.Outbound indirect flight with Ryanair, departs from Porto on Tue, 23 Sep, arriving in Cagliari.Inbound indirect flight with Vueling Airlines, departs from Cagliari on Tue, 30 Sep, arriving in Porto.Price includes taxes and charges.From $233, select.
Cagliari.$235 per passenger.Departing Sat, 17 Jan, returning Wed, 21 Jan.Return flight with Ryanair.Outbound indirect flight with Ryanair, departs from Porto on Sat, 17 Jan, arriving in Cagliari.Inbound indirect flight with Ryanair, departs from Cagliari on Wed, 21 Jan, arriving in Porto.Price includes taxes and charges.From $235, select.
Cagliari.$244 per passenger.Departing Tue, 23 Sep, returning Tue, 30 Sep.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Porto on Tue, 23 Sep, arriving in Cagliari.Inbound direct flight with Ryanair departs from Cagliari on Tue, 30 Sep, arriving in Porto.Price includes taxes and charges.From $244, select.
Cagliari.$247 per passenger.Departing Thu, 4 Dec, returning Mon, 8 Dec.Return flight with Ryanair and Vueling Airlines.Outbound indirect flight with Ryanair, departs from Porto on Thu, 4 Dec, arriving in Cagliari.Inbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 8 Dec, arriving in Porto.Price includes taxes and charges.From $247, select.

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.
Jul
from $381
Aug
from $388
Sep
from $233
Oct
from $118
Nov
from $248
Dec
from $247
Jan
from $235
Feb
from $481
Mar
from $393
Apr
Find prices
May
from $446
Jun
from $302

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 found$118
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 $118. 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 2025, 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 Thursday, 23 October 2025.
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 Elmas Airport (CAG): what you need to know

  • Around 2 hours 30 minutes is how long you'll be travelling on a direct flight from Porto Airport to Cagliari Elmas Airport.

  • Cagliari's timezone is UTC+1, which makes Cagliari one hour ahead of Porto.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Get to the airport on time to catch your OPO to CAG flight.

  • During popular months such as August, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're flying during a peak period in general.

  • Flying into Cagliari (and then seeing more of Italy!) is easy with Ryanair. This popular airline offers direct flights from Porto Airport to Cagliari Elmas Airport.

  • The airline that passengers book most often on this route is Ryanair.

  • Consider adding a stopover when booking your ticket from Porto Airport to Cagliari Elmas Airport. Just uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between OPO and CAG:

    • Barcelona-El Prat Airport

    • Turin Airport

    • Adolfo Suarez Madrid-Barajas Airport

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

  • The lowest price we've found for a one-way Porto Airport to Cagliari Elmas Airport flight is $54. A round-trip plane ticket is currently $118. Depending on the availability when you book, these fares may change.

  • Get cheap tickets from OPO to CAG by booking at least six months ahead. Based on our research, that's the sweet spot for finding the biggest deals.

  • May is the cheapest month for flights from Porto Airport to Cagliari Elmas Airport. If you prefer to travel during a different time of year, the 'Whole month' tool will give you the lowest airfares for every month.

  • Picking up cheap flights from OPO to CAG is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Tailor your trip with filters. Choose your departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Porto Airport to Cagliari Elmas Airport.

Handy information about Porto Airport (OPO)

  • Of the departures from Porto Airport, 74.49% land on time at their destination.

  • To reach Porto Airport from central Porto, it takes about 20 minutes if you're travelling by car. Of course, this depends on traffic conditions. It's approximately 16 kilometres from the airport to the city centre.

  • You can expect a trip time of roughly 50 minutes on public transport.

  • Get your journey off to a stress-free start by staying near OPO. Whether you're taking an early flight from Porto Airport to Cagliari Elmas Airport or want to avoid feeling rushed, these hotels have you covered:

Arriving at Cagliari Elmas Airport (CAG)

  • If you're coming in on a late Porto Airport to Cagliari Elmas Airport flight, nothing tops the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and snoozing shortly after at one of these accommodation options near CAG:

  • Grab a Cagliari Elmas Airport rental car and discover Cagliari and beyond with your own wheels. Surprice, RentSmart24 and Galdieri Rent are top providers to choose from here.

  • Reserving your vehicle from Cagliari Elmas Airport about one week in advance can help you get the lowest rate.

Getting from Cagliari Elmas Airport (CAG) to central Cagliari

  • Cagliari Elmas Airport to central Cagliari has a drive time of about 15 minutes. It's approximately 11 kilometres away.

  • It takes around 50 minutes to get there using public transport.

When to fly to Cagliari Elmas Airport (CAG)

  • July is the most popular month for flights from Porto Airport to Cagliari Elmas Airport. To avoid the crowds, head to Cagliari in February.

  • The warmest month in Cagliari is July, with the temperature ranging between 19ºC (66ºF) and 35ºC (95ºF). Lock in your flights from Porto Airport to Cagliari Elmas Airport in this month if you like this kind of weather.

  • Look for cheap tickets from OPO to CAG in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 16ºC (61ºF) on average.

Explore more of Italy

  • Cagliari is easy to fall in love with, but there are so many other parts of Italy you should also see. Around 418 kilometres north-east of Cagliari, a visit to Rome will keep you on the go. Start with leading attractions like Colosseum, World’s smallest country Vatican City tour - City of Rome Capital, Italy (Self-Guided free walking tour) by FreeGuides.com and Trevi Fountain.

  • Around 467 kilometres north-east of Cagliari, Naples is another essential stop in Italy. Get a taste of what this destination has to offer at National Archaeological Museum, Castel dell'Ovo and Royal Palace of Naples.

Plan the rest of your trip from Porto to Cagliari

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.