$495 Cheap Flights from Porto (OPO) to Hong Kong (HKG)

View $495 flight on Wed, Nov 12, 2025Opens in a new window

Popular airlines from Porto Airport (OPO) to Hong Kong International Airport (HKG)

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

Prices were available within the past 7 days and start at $495 for one-way flights and $766 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$766 Roundtrip, found 2 days ago
$766
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $766 found 2 days ago
Swiss International Air Lines
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$791 Roundtrip, found 2 days ago
$791
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $791 found 2 days ago
Swiss International Air Lines
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$815 Roundtrip, found 2 days ago
$815
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $815 found 2 days ago
Lufthansa
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$824 Roundtrip, found 2 days ago
$824
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $824 found 2 days ago
British Airways
Tue, Nov 25 - Wed, Dec 10
OPO
Porto
HKG
Hong Kong SAR
$838 Roundtrip, found 2 days ago
$838
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Porto to Hong Kong SAR, returning Wed, Dec 10, priced at $838 found 2 days ago
Etihad Airways
Wed, Nov 26 - Tue, Dec 9
OPO
Porto
HKG
Hong Kong SAR
$848 Roundtrip, found 2 days ago
$848
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Nov 26 from Porto to Hong Kong SAR, returning Tue, Dec 9, priced at $848 found 2 days ago
Lufthansa
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$850 Roundtrip, found 2 days ago
$850
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $850 found 2 days ago
Lufthansa
Fri, Nov 28 - Sun, Dec 7
OPO
Porto
HKG
Hong Kong SAR
$850 Roundtrip, found 2 days ago
$850
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Fri, Nov 28 from Porto to Hong Kong SAR, returning Sun, Dec 7, priced at $850 found 2 days ago
Etihad Airways
Wed, Nov 26 - Thu, Dec 4
OPO
Porto
HKG
Hong Kong SAR
$862 Roundtrip, found 2 days ago
$862
Roundtrip
found 2 days ago
Select Etihad Airways flight, departing Wed, Nov 26 from Porto to Hong Kong SAR, returning Thu, Dec 4, priced at $862 found 2 days ago
KLM
Thu, Nov 6 - Wed, Nov 26
OPO
Porto
HKG
Hong Kong SAR
$950 Roundtrip, found 3 days ago
$950
Roundtrip
found 3 days ago
Select KLM flight, departing Thu, Nov 6 from Porto to Hong Kong SAR, returning Wed, Nov 26, priced at $950 found 3 days ago

Alternative airports near Chek Lap Kok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hong Kong Intl. HKG. Cheapest option available. Flights from $1,312
HKG
Hong Kong Intl.
Cheapest
Flights from $1,312

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG) cost?
Grab a cheap one-way flight from $495 or cheap return flight from $766 from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG)?
Planning your trip for November is a great way to save, as it's the cheapest month for flights between OPO and HKG. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG)?
To find the cheapest airline flying from OPO to HKG, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG)?
Nonstop flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from OPO to HKG?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG)?
To avoid possible delays on the Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG) last-minute?
Booking your ticket from OPO to HKG just before your journey is typically more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an OPO to HKG flight and hotel package?
Compared with arranging flights and hotels separately, booking an OPO to HKG flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the hassle out of travel planning. Simply secure your flights and choose from our wide range of stays, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Hong Kong Intl. Airport (HKG)?
If you reserved your OPO to HKG flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Hong Kong Intl.
Airlines serving
Air France, Etihad Airways, Finnair, Iberia, KLM, Lufthansa, Qatar Airways, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Roundtrip price
$765
Distance
6712 mi

Book with confidence

Book with confidence

Porto to Hong Kong Flights

The cheapest times to fly from Porto to Hong Kong

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Porto to Hong Kong are during the month of November. You can find some of the cheapest flights from Porto to Hong Kong with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Hong Kong

Sunday is one of the best days to book for cheap flights from Porto to Hong Kong: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Porto to Hong Kong

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Porto to Hong Kong in 2025. You can also book with separate airlines for your outbound and return journeys, from $495 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Porto to Hong Kong flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Porto to Hong Kong airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Porto to Hong Kong Flights
*Available to One Key members.