$589 Cheap Flights from Sydney (SYD) to Porto (OPO)

View $589 flight on Thu, Feb 12, 2026Opens in a new window

Popular airlines from Sydney Airport (SYD) to Porto Airport (OPO)

Cheap Flights from Sydney to Porto (SYD-OPO)

Prices were available within the past 7 days and start at $589 for one-way flights and $1,183 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Fri, Oct 17 - Sun, Nov 2
SYD
Sydney
OPO
Porto
$1,183 Roundtrip, found 3 days ago
$1,183
Roundtrip
found 3 days ago
Select Etihad Airways flight, departing Fri, Oct 17 from Sydney to Porto, returning Sun, Nov 2, priced at $1,183 found 3 days ago
China Eastern Airlines
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,261 Roundtrip, found 3 days ago
$1,261
Roundtrip
found 3 days ago
Select China Eastern Airlines flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,261 found 3 days ago
Turkish Airlines
Fri, Oct 17 - Sun, Nov 2
SYD
Sydney
OPO
Porto
$1,290 Roundtrip, found 3 days ago
$1,290
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Fri, Oct 17 from Sydney to Porto, returning Sun, Nov 2, priced at $1,290 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,303 Roundtrip, found 3 days ago
$1,303
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,303 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,306 Roundtrip, found 3 days ago
$1,306
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,306 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,306 Roundtrip, found 3 days ago
$1,306
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,306 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,309 Roundtrip, found 3 days ago
$1,309
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,309 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,314 Roundtrip, found 3 days ago
$1,314
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,314 found 3 days ago
Qantas Airways
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,317 Roundtrip, found 3 days ago
$1,317
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,317 found 3 days ago
Lufthansa
Mon, Oct 20 - Mon, Oct 27
SYD
Sydney
OPO
Porto
$1,397 Roundtrip, found 3 days ago
$1,397
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Oct 20 from Sydney to Porto, returning Mon, Oct 27, priced at $1,397 found 3 days ago
Flights from Sydney (SYD) to Porto (OPO)
Origin airport
Kingsford Smith Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Roundtrip price
$1,182
Distance
11226 mi

Sydney to Porto Flights

The cheapest times to fly from Sydney to Porto

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 Sydney to Porto are during the month of October. You can find some of the cheapest flights from Sydney to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Porto

Sunday is one of the best days to book for cheap flights from Sydney to Porto: 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 Sydney to Porto

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 Sydney to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $589 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 Sydney to Porto 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 Sydney to Porto 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.

 

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Secure a cheap one-way flight from $589 or cheap return flight from $1,183 from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Flying in October may help you find better deals, as it's the cheapest month for flights between SYD and OPO. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SYD to OPO flight.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Nonstop flights from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SYD to OPO?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as 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 Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Opt for a flight from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour are on average 22% more likely to be canceled.**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 Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Waiting until just before your departure to book a flight from SYD to OPO generally means paying more. While you may find some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule for the best chance of scoring a bargain.
Is it cheaper to book a SYD to OPO flight and hotel package?
You can save money by securing a SYD to OPO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Dr. Francisco de Sa Carneiro Airport (OPO)?
If you reserved your SYD to OPO flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.