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

Compare Cagliari to Porto flight deals

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

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Flight deals from Cagliari to Porto

Looking for a cheap last-minute deal or the best return flight from Cagliari Airport to Porto Airport? If you want to travel next month, return fares start from £96. Find the lowest prices on one-way and return tickets right here.

Porto.£26 per passenger.Departing Wed, 21 Oct.One-way flight with Ryanair.Outbound direct flight with Ryanair departs from Cagliari on Wed, 21 Oct, arriving in Porto.Price includes taxes and charges.From £26, select.

Porto.£44 per passenger.Departing Wed, 30 Sep.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Cagliari on Wed, 30 Sep, arriving in Porto.Price includes taxes and charges.From £44, select.

Porto.£48 per passenger.Departing Mon, 1 Feb.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 1 Feb, arriving in Porto.Price includes taxes and charges.From £48, select.

Porto.£48 per passenger.Departing Mon, 2 Nov.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 2 Nov, arriving in Porto.Price includes taxes and charges.From £48, select.

Porto.£54 per passenger.Departing Mon, 14 Dec.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 14 Dec, arriving in Porto.Price includes taxes and charges.From £54, select.

Porto.£54 per passenger.Departing Mon, 25 Jan.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 25 Jan, arriving in Porto.Price includes taxes and charges.From £54, select.

Porto.£55 per passenger.Departing Fri, 19 Mar.One-way flight with easyJet.Outbound indirect flight with easyJet, departs from Cagliari on Fri, 19 Mar, arriving in Porto.Price includes taxes and charges.From £55, select.

Porto.£58 per passenger.Departing Wed, 5 Aug.One-way flight with Ryanair.Outbound direct flight with Ryanair departs from Cagliari on Wed, 5 Aug, arriving in Porto.Price includes taxes and charges.From £58, select.

Porto.£63 per passenger.Departing Tue, 1 Sep.One-way flight with Ryanair.Outbound direct flight with Ryanair departs from Cagliari on Tue, 1 Sep, arriving in Porto.Price includes taxes and charges.From £63, select.

Porto.£65 per passenger.Departing Wed, 29 Jul.One-way flight with Ryanair.Outbound direct flight with Ryanair departs from Cagliari on Wed, 29 Jul, arriving in Porto.Price includes taxes and charges.From £65, select.

Porto.£71 per passenger.Departing Mon, 31 May.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Mon, 31 May, arriving in Porto.Price includes taxes and charges.From £71, select.

Porto.£85 per passenger.Departing Sat, 24 Apr.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from Cagliari on Sat, 24 Apr, arriving in Porto.Price includes taxes and charges.From £85, select.

Porto.£114 per passenger.Departing Wed, 30 Jun.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Cagliari on Wed, 30 Jun, arriving in Porto.Price includes taxes and charges.From £114, select.

Porto.£153 per passenger.Departing Mon, 12 Jul.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Cagliari on Mon, 12 Jul, arriving in Porto.Price includes taxes and charges.From £153, select.

Find the cheapest month to fly from Cagliari to Porto from £26 one-way

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

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Direct flights from Cagliari to Porto

Cagliari to Porto: Alternative routes

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

Cagliari to Porto: Flight information

The things to know before you go.

Cheapest flight found	£26
Cheapest month to fly	October
Average flight time	2 hrs, 45 mins
Most popular airline	Ryanair
Average flights per week	3

Finding cheap flights from Cagliari to Porto: Frequently asked questions

How much are return flights from Cagliari to Porto?

The best price we found for a return flight from Cagliari to Porto is £59. 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.

How long does it take to fly from Cagliari to Porto?

2 hours and 45 minutes is the average flight time from Cagliari to Porto.

Which airlines fly direct from Cagliari to Porto?

Ryanair flies direct from Cagliari to Porto.

How many flights are there a week from Cagliari to Porto?

As of July 2026, there are 3 flights per week flying from Cagliari to Porto.

When is the cheapest time to fly from Cagliari to Porto?

The cheapest month to fly from Cagliari to Porto is usually October.

Which upcoming date is cheapest to fly from Cagliari Airport to Porto Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cagliari Airport to Porto Airport on Wednesday, 21 October 2026.

Can I get a direct flight from Cagliari Airport to Porto Airport?

Yes – the average flight time is 2 hours and 45 minutes.

How can I find the best flight deal to Porto?

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 Porto 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.

When is the best time to book flights to Porto?

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

Which is the cheapest airline to fly from Cagliari Airport to Porto with?

Currently, Ryanair offers the cheapest flight tickets to Porto.

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

Jump on a direct flight from Cagliari Airport to Porto Airport and you'll be travelling for an average of 2 hours 45 minutes.
Porto's timezone is UTC+0, which makes Porto one hour behind Cagliari.
For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your CAG to OPO flight.
Be prepared for bigger queues during popular months such as August. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.
Travelling to Porto (and then exploring more of Portugal!) is a cinch with Ryanair. This popular carrier has direct flights from Cagliari Airport to Porto Airport.
Most travellers choose to travel with Ryanair on this route.
The carrier with the best on-time arrival rate for CAG to OPO flights is Ryanair.
We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Cagliari Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to visit the city of your choice. Top stopovers between CAG and OPO include:
- Madrid Airport
- Barcelona Airport
- Paris Orly Airport

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

£26 is the lowest price for a one-way Cagliari Airport to Porto Airport flight. Return flights start at £59. These fares can change depending on availability and demand.
It's a good idea to book ahead of time if you're hoping to get cheap tickets from CAG to OPO. That's because flight prices are based on demand, which tends to increase closer to departure.
Organise your trip for May. That's the cheapest month for flights from Cagliari Airport to Porto Airport. If your travel dates are flexible, try out the 'Whole month' tool to find the lowest price across each month.
Save time searching for cheap flights from CAG to OPO by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Cagliari Airport to Porto Airport.

Handy information about Cagliari Airport (CAG)

85% of flights departing from Cagliari Airport arrive at their destination on schedule. With its dependable on-time performance, you're unlikely to be delayed when jetting out of CAG.
Central Cagliari to Cagliari Airport is approximately 6 kms (4 miles). Depending on traffic, it'll take about 10 minutes to get there if you're ride-sharing, catching a taxi or driving.
You can expect a trip time of about 20 minutes when using public transport.
Get your break off to a relaxed start by staying near CAG. Whether you have an early flight from Cagliari Airport to Porto Airport or just don't like being rushed, these stays are the answer:

Arriving at Porto Airport (OPO)

If you're coming in on a late Cagliari Airport to Porto Airport flight, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be tucked up in bed soon after at one of these accommodation options near OPO:
Begin your adventure by picking up a Porto Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or Drive & Go and experience the lesser-explored corners of Porto and beyond.
For the lowest price, reserve your vehicle from Porto Airport around three weeks before your trip.

When to fly to Porto Airport (OPO)

It's time to choose your travel dates for your flight from Cagliari Airport to Porto Airport. August is the most popular month to visit Porto. If you like a more low-key vibe, go in March.
The warmest month in Porto is August, with the temperature ranging between 14ºC and 32ºC. Book your flights from Cagliari Airport to Porto Airport in this month if this is the kind of weather you like.
Look for cheap tickets from CAG to OPO in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 3ºC and 14ºC on average.

Explore more of Portugal

You've visited Porto, now it's time to discover more of Portugal. Journey about 274 kms (170 miles) south to Lisbon to check off its top sights. From Pasteis de Belém to belém and Real Mosteiro de Santa Maria de Belém, you'll have a full itinerary ahead.
Amadora is another must-experience destination in Portugal and is around 274 kms (170 miles) south of Porto. No journey is complete without experiencing Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.