Cheap Flights from Cairns (CNS) to Porto (OPO)

Compare Cairns 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 Cairns to Porto

Looking for a cheap last-minute deal or the best return flight from Cairns to Porto? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Cairns to Porto

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

Cairns to Porto: Alternative routes

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

Cairns to Porto: Flight information

The things to know before you go.
Cheapest flight found$2,187
Cheapest month to flyNovember

Finding cheap flights from Cairns to Porto: Frequently asked questions

The best price we found for a return flight from Cairns to Porto is $2,187. 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.
Currently, there are no airlines that fly direct from Cairns to Porto. But we found flights with one or more stops from $2,187.
As of July 2025, there are no flights flying from Cairns to Porto.
The cheapest month to fly from Cairns to Porto is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Cairns Airport to Porto Airport on Wednesday, 5 November 2025.
No airlines currently offer direct flights between Cairns Airport and Porto Airport. Most routes have one or more stops.
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.
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.
Currently, Singapore Airlines offers the cheapest flight tickets to Porto.

Travelling from Cairns Airport (CNS) to Porto Airport (OPO): what you need to know

  • Porto is ten hours behind Cairns and follows the UTC+0 timezone.

  • Your CNS to OPO flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • During popular months such as July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a high season in general.

How to find the cheapest flights from Cairns Airport (CNS) to Porto Airport (OPO)

  • The cheapest price we've seen for a one-way Cairns Airport to Porto Airport flight is $1,230. A return fare is currently $2,187. Depending on the availability and when you book, these fares could change.

  • It's usually best to book in advance if you want to find cheap tickets from CNS to OPO. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • The 'Whole month' search function shows you the cheapest flights from Cairns Airport to Porto Airport across the entire month. It's a good way to snap up a bargain if your plans aren't set in stone.

  • You don't need to check back in every day to see if fares have gone down when you create a Price Alert. We'll update you as soon as there's a new deal on cheap flights from CNS to OPO.

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

Handy information about Cairns Airport (CNS)

  • Of all flights departing from Cairns Airport, 71.55% land on time at their destination.

  • To reach Cairns Airport from central Cairns, it'll take around 10 minutes by car. Of course, this depends on traffic. It's approximately 6 kilometres from the airport to the city centre.

  • Expect a journey time of about 1 hour 25 minutes when using public transport.

  • Need a handy hotel close to CNS? If you've booked an early flight from Cairns Airport to Porto Airport, these accommodation options will have you sleeping moments from your departure lounge:

Arriving at Porto Airport (OPO)

  • Consider booking a hotel close to OPO if you're on a late Cairns Airport to Porto Airport flight. Settle into one of these accommodation options and skip the long transfer after landing:

  • Grab a Porto Airport rental car and discover Porto and beyond with your own set of wheels. Klass Wagen, Goldcar and Drive & Go are well-known companies you can book with here.

  • To get the best deal, reserve your ride from Porto Airport about three weeks before you travel.

Getting from Porto Airport (OPO) to central Porto

  • From Porto Airport, Porto is approximately 16 kilometres away. It takes around 20 minutes to reach the centre driving.

  • Travelling on public transport will take you around 50 minutes.

When to fly to Porto Airport (OPO)

  • It's time to choose your trip dates for your flight from Cairns Airport to Porto Airport. August is the busiest month to head to Porto. If you'd like a more laid-back vibe, go in January.

  • Lock in your flight from Cairns Airport to Porto Airport for August if you want to go to Porto during its warmest month. Expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from CNS to OPO in January. Temperatures average between 3ºC (37ºF) and 14ºC (57ºF) then.

Explore more of Portugal

  • You've done Porto, now it's time to discover more of Portugal. Journey about 274 kilometres south to Lisbon to check off its leading sights. From Torre de Belem Garden to Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle, there's plenty to keep you busy.

  • If you're eager to discover another side of Portugal, head for Amadora, roughly 274 kilometres south of Porto. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are among the biggest draws.

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