This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25-9. Fares are subject to change and may not be available on all flights or dates of travel.
— OPO
11 Oct — 18 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Flights to Porto in 2026
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights to Porto
Explore the most affordable flight options available to Porto. Find the lowest fares based on data from user searches, with prices last updated on 11 September 2026.
Thu 5-1123:30 -
1 stop40h 20m
Thu 12-1112:05 -
1 stop21h 30m
Deal found 10-9HK$5,003
Mon 12-1023:05 -
1 stop19h 20m
Wed 21-1006:00 -
1 stop26h 20m
Deal found 6-9HK$5,112
Sun 27-1223:30 -
1 stop27h 00m
Thu 7-119:20 -
1 stop38h 15m
Deal found 9-9HK$5,207
Tue 29-1223:30 -
1 stop27h 00m
Thu 7-119:20 -
1 stop38h 15m
Deal found 9-9HK$5,254
Thu 22-1023:25 -
1 stop23h 20m
Thu 29-1006:00 -
1 stop26h 30m
Deal found 7-9HK$5,269
Mon 19-1017:45 -
2 stops25h 45m
Tue 27-1006:55 -
2 stops21h 05m
Deal found 7-9HK$5,324
Wed 14-1023:05 -
1 stop26h 25m
Wed 21-1006:00 -
1 stop26h 20m
Deal found 9-9HK$5,387
Thu 22-1023:05 -
2 stops27h 05m
Thu 29-1010:00 -
2 stops23h 35m
Deal found 7-9HK$5,536
Sat 26-1222:45 -
1 stop19h 50m
Sun 10-116:10 -
1 stop16h 10m
Deal found 9-9HK$5,583
Sat 26-1222:45 -
1 stop19h 50m
Fri 8-111:30 -
1 stop23h 15m
Deal found 9-9HK$5,591
Best flights to Porto
Discover carefully curated flight deals to Porto that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.
Mon 19-1023:05 -
1 stop19h 20m
Tue 27-1012:35 -
1 stop19h 55m
Deal found 7-9HK$5,112
Thu 5-1123:30 -
1 stop40h 20m
Thu 12-1110:00 -
2 stops23h 35m
Deal found 10-9HK$5,269
Mon 28-1219:35 -
2 stops31h 45m
Tue 12-111:35 -
2 stops36h 55m
Deal found 9-9HK$5,928
Wed 9-1209:45 -
1 stop37h 40m
Tue 29-1210:55 -
1 stop37h 10m
Deal found 10-9HK$7,198
Mon 12-1023:05 -
1 stop19h 20m
Wed 21-1006:00 -
1 stop26h 20m
Deal found 6-9HK$5,112
Thu 22-1023:05 -
2 stops27h 05m
Thu 29-1010:00 -
2 stops23h 35m
Deal found 7-9HK$5,536
Tue 23-219:35 -
2 stops23h 15m
Thu 25-211:35 -
2 stops36h 55m
Deal found 10-9HK$7,222
Tue 22-923:05 -
1 stop19h 20m
Tue 29-914:35 -
2 stops19h 00m
Deal found 9-9HK$6,673
Thu 22-1020:15 -
3 stops26h 15m
Thu 29-1005:00 -
3 stops23h 05m
Deal found 7-9HK$7,136
Last-minute flights to Porto
Discover last-minute flight deals to Porto. Data last updated 11 September 2026 and is based on user searches.
Mon 12-1023:05 -
1 stop19h 20m
Wed 21-1006:00 -
1 stop26h 20m
Deal found 6-9HK$5,112
Wed 14-1023:05 -
1 stop26h 25m
Wed 21-1006:00 -
1 stop26h 20m
Deal found 9-9HK$5,387
Wed 14-1023:05 -
2 stops21h 40m
Wed 21-1008:40 -
1 stop24h 55m
Deal found 9-9HK$5,857
Mon 19-1017:45 -
2 stops25h 45m
Tue 27-1006:55 -
2 stops21h 05m
Deal found 7-9HK$5,324
Thu 22-1023:25 -
1 stop23h 20m
Thu 29-1006:00 -
1 stop26h 30m
Deal found 7-9HK$5,269
Thu 22-1023:05 -
2 stops27h 05m
Thu 29-1010:00 -
2 stops23h 35m
Deal found 7-9HK$5,536
Sat 24-1000:10 -
1 stop19h 05m
Sun 1-1106:00 -
1 stop26h 30m
Deal found 10-9HK$5,936
One-way flights to Porto
Search for one-way flight options to Porto. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.
Fri 25-907:40 -
3 stops46h 50m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-9HK$4,062
Tue 5-112:55 -
3 stops50h 45m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 10-9HK$4,595
Tue 5-123:30 -
1 stop27h 00m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 10-9HK$6,336
Fri 25-923:05 -
1 stop26h 25m
Wed 31-1200:00 -
Nonstop0h 00m
Deal found 8-9HK$13,416
Find flight deals to Porto
Find the latest flights to Porto in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 7,457,451 searches and data was last updated on 11 September 2026.
Locate flights to Porto that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 7,457,451 searches and data was last updated on 11 September 2026.
Use the filters below to find and compare flights to Porto that are best for you.
Fly from
Route
Departure
Return
Price
Cheapest return flight
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Fri 25-9
07:40-23:30
3 stops46h 50m
Porto
Wed 31-12
00:00-07:00
Nonstop0h 00m
HK$4,062
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Tue 5-1
12:55-07:40
3 stops50h 45m
Porto
Wed 31-12
00:00-07:00
Nonstop0h 00m
HK$4,595
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Mon 19-10
23:05-11:25
1 stop19h 20m
Porto
Tue 27-10
12:35-16:30
1 stop19h 55m
HK$5,112
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Mon 12-10
23:05-11:25
1 stop19h 20m
Porto
Wed 21-10
06:00-15:20
1 stop26h 20m
HK$5,112
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Thu 5-11
23:30-07:50
1 stop40h 20m
Porto
Thu 12-11
10:00-17:35
2 stops23h 35m
HK$5,269
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Thu 22-10
23:05-19:10
2 stops27h 05m
Porto
Thu 29-10
10:00-17:35
2 stops23h 35m
HK$5,536
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Mon 28-12
19:35-19:20
2 stops31h 45m
Porto
Tue 12-1
11:35-08:30
2 stops36h 55m
HK$5,928
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Tue 22-9
23:05-11:25
1 stop19h 20m
Porto
Tue 29-9
14:35-16:35
2 stops19h 00m
HK$6,673
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Thu 22-10
20:15-15:30
3 stops26h 15m
Porto
Thu 29-10
05:00-12:05
3 stops23h 05m
HK$7,136
Hong KongPorto
HKG Hong Kong Intl - OPO Porto
HKGOPO
Hong Kong Intl
Wed 9-12
09:45-15:25
1 stop37h 40m
Porto
Tue 29-12
10:55-08:05
1 stop37h 10m
HK$7,198
Flights are sorted by cheapest return flights first.
Deals found on 8-9
Showing 1-10 of 12 resultsSorted by cheapest first
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Best time to book a flight to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto with our price prediction graph.
HKG-OPO
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight to Porto
Rainfall in Porto by month
Plan your trip to Porto by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto ranges from 18.0 - 195.0 mm per month. December is typically the wettest month, when rainfall can reach 195.0 mm. July is typically the driest time to visit Porto when rainfall is around 18.0 mm.
Temperature in Porto by month
Plan your trip to Porto by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).
How long is the flight to Porto?
On average, a flight from Hong Kong to Porto takes 23 hours 15 minutes. Flights to Porto from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.
Porto is warmest in July and August when the temperature is around 35 or 40 degrees. Summer also has low humidity, cooling breezes, and little rain. Mid-September is the beginning of the rainy season, and the amount of rainfall peaks in December which has an average rainfall of 45cm (18 inches). The rain continues into May, although it eases off in March. Winters are mild.
The public transport system in Porto is cheap and easy, but many tourists enjoy walking or biking, especially in the old section of town, where the sights are close together. Don’t worry about getting lost in the narrow streets, just ask a resident to point you in the right direction. Buses, trams and the metro will get you around the city quickly, and the funiculars can take you from the Ribeira to the city’s centre. Local trains can take you to the outer edges of the city and to the beaches. Avoid travelling during rush hour, as public transport can get very crowded. Look for discount or multiple-trip tickets such as the Passe Turistico, bulhete diario (day pass) and the rechargeable Andante Card to save money. You can hail, call or pick up a taxi from a stand 24 hours a day.
Driving can be very difficult, thanks to heavy traffic and a maze of one-way streets. With all the transport system options in Porto, renting a car isn’t worth the hassle.
Porto is the capital of Port, the country’s most famous wine region. A visit to the Port lodges in Vila Nova da Gaia, where the wines are aged, is a must. Vila Nova da Gaialies opposite Oporto, across the river Douro. The city is also known for the “Barcos Rabelos”, the flat-bottomed boats that used to ship the Port from the vineyards. The boats take part in a thrilling race (in June each year), part of the Festival de Sao Joao do Porto (feast of St. John).
The funicular railway that runs up the hill from the riverside to the Praca da Batalha is a great way to see the city.
Porto’s historic center is a Unesco World Heritage site. The Praca da Ribeira is a popular meeting place. Ribeira’s Quay is the original port. The area is charming with cobbled streets, brightly painted houses, small shops, cafes and restaurants. A walk along the Ribeira Quay leads to the Dom Luis Bridge, which links Porto with Vila Nova da Gaia. The bridge was built in the 1880s by Teophile Seyrig, a Belgian engineer who studied with Eiffel. The bridge with its iron structure owes much to the Eiffel Tower.
Porto Cathedral was started in the 13th century, added to at the end of the 14th (Gothic cloister) and 16th centuries (Chapel of St. Vincent) and the main chapel was added in the 17th century. In 1736, Nicolau Nasoni, the baroque Italian architect added the north facade. The cathedral is located on the hill above the grand Sao Bento train station. The views from the cathedral of the old quarter are beautiful.
The Sao Francisco Church is one of Porto’s last remaining medieval buildings, and the only Gothic church in the city.
When is the best time to fly to Porto?
Peak season:
Summer is the most popular time to visit Porto and the beaches in the surrounding areas.
Off season:
If you do not mind rain, pack the wet gear and come in winter. The weather is on the cool side of mild, and, when the rain eases off in March, everything is in bloom.
What airport do you fly into for flights to Porto?
For a flight to Porto, you will be flying into Porto. Porto (OPO) is just 10.9 km from the centre of the city.
Can I find cheaper flights to Porto if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Porto on Cheapflights that require 1 or 2 stops for potential cost savings.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights to Porto?
Cheapflights helps you search for flights to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets to Porto?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Porto.
Can Cheapflights find flights to Porto with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights to Porto flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights to Porto become cheaper?
Not ready to book yet? You can track prices for flights to Porto on Cheapflights with our Price Alerts feature and get notified when better prices are available.
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