Cheap Flights from Hong Kong Intl (HKG) to Porto (OPO)

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Flight deals from Hong Kong Intl to Porto

Looking for a cheap last-minute deal or the best round-trip flight from Hong Kong Intl to Porto? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Hong Kong Intl to Porto

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

Hong Kong Intl to Porto: Alternative routes

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

Hong Kong to Porto: Flight information

The things to know before you go.
Cheapest flight found$329
Cheapest month to flyOctober

Finding cheap flights from Hong Kong Intl to Porto: Frequently asked questions

The best price we found for a round-trip flight from Hong Kong Intl to Porto is $607. 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 Hong Kong Intl to Porto. But we found flights with one or more stops from $607.
There are no flights flying from Hong Kong Intl to Porto, as of June 2025.
The cheapest month to fly from Hong Kong Intl to Porto is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hong Kong Intl Airport to Porto Airport on Thursday, October 30, 2025.
No airlines currently offer direct flights between Hong Kong Intl 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, SWISS offers the cheapest flight tickets to Porto.

Traveling from Hong Kong International Airport (HKG) to Porto Airport (OPO): what you need to know

  • Porto is eight hours behind Hong Kong and observes the UTC+0 timezone.

  • To ensure you catch your HKG to OPO flight, allow plenty of time to check in and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general rule.

  • Flying during a peak month such as April? School holidays and other high seasons can mean longer queues at airport checkpoints. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Consider adding a stopover when booking your ticket from Hong Kong International Airport to Porto Airport. Just uncheck 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Here's where you can stop between HKG and OPO:

    • Charles de Gaulle Airport

    • Barcelona-El Prat Airport

    • Adolfo Suarez Madrid-Barajas Airport

How to find the cheapest flights from Hong Kong International Airport (HKG) to Porto Airport (OPO)

  • The lowest price we've seen for a one-way Hong Kong International Airport to Porto Airport flight is $329. A return fare right now is $607. Depending on the availability when you book, these fares could change.

  • Don't leave everything to the last moment. You're more likely to get cheap tickets from HKG to OPO if you book early. Airlines often have some great early bird rates.

  • Finding cheap flights from Hong Kong International Airport to Porto Airport is easier if you can be flexible with your dates. Use the 'Whole month' tool to see the lowest fares across each month and score a great deal.

  • Getting your hands on cheap flights from HKG to OPO is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Hong Kong International Airport to Porto Airport.

Handy information about Hong Kong International Airport (HKG)

  • HKG is located at 1 Cheong Hong Rd.

  • When it comes to the on-time performance of Hong Kong International Airport, data shows 73.04% of flights meet their scheduled arrival time.

  • Hong Kong International Airport is around 20 miles from central Hong Kong. If you're catching a cab, ride-sharing or driving from the center, it'll take 30 minutes or so to arrive, depending on the traffic.

  • Expect a journey time of roughly 45 minutes when using public transport.

  • Get your trip off to a relaxed start by staying near HKG. Whether you've booked an early flight from Hong Kong International Airport to Porto Airport or just don't want to be rushed, these stays have you covered:

Arriving at Porto Airport (OPO)

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a Hong Kong International Airport to Porto Airport flight. Stay at one of these accommodation options near OPO instead:

  • Travel at your own pace with a Porto Airport rental car. Book your wheels from Klass Wagen, Goldcar or Drive & Go and chase adventure across Porto and beyond.

  • To get the best deal, book your vehicle from Porto Airport about three weeks before your trip.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to the center of Porto has a drive time of around 20 minutes. It's approximately 10 miles away.

  • It takes roughly 50 minutes to get there by public transport.

When to fly to Porto Airport (OPO)

  • August is the busiest month for flights from Hong Kong International Airport to Porto Airport. To skip the crowds, travel to Porto in January.

  • The warmest month in Porto is August, with temperatures ranging between 57ºF and 90ºF. Lock in your flights from Hong Kong International Airport to Porto Airport in this month if this is the type of weather you enjoy.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from HKG to OPO in January. Temperatures average between 37ºF and 57ºF then.

Explore more of Portugal

  • You've visited Porto, now it's time to discover more of Portugal. Travel around 170 miles south to Lisbon to tick off its top attractions. From Torre de Belem Garden to Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle, you'll have a full itinerary ahead.

  • If you're ready to explore another side of Portugal, consider Amadora, roughly 170 miles south of Porto. Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge are key reasons to visit.

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