What is the cheapest airline that flies from Porto to Sydney Kingsford Smith?

Etihad Airways and Qatar Airways are the most popular carriers operating from Porto to Sydney Kingsford Smith

When did momondo last update prices for flights from Porto Airport to Sydney Kingsford Smith Airport?

Prices for flights from Porto Airport to Sydney Kingsford Smith Airport were last updated today.

How old do you have to be to fly from Porto Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$831 Cheap Flights from Porto to Sydney in 2026/27

Find the cheapest flights from Porto to Sydney

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:35 - 07:55OPO Porto-SYD Sydney Kingsford Smith

51h 20m2 stops London Gatwick Hong Kong Intl

16:20 - 16:45SYD Sydney Kingsford Smith-OPO Porto

35h 25m2 stops Singapore Changi London Heathrow

$1,618British Airways

Mon, 2 Nov - Sun, 22 Nov

10:55 - 19:25OPO Porto-SYD Sydney Kingsford Smith

69h 30m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

52h 50m2 stops Singapore Changi Istanbul

$1,620Turkish Airlines

Thu, 5 Nov - Thu, 19 Nov

16:25 - 19:25OPO Porto-SYD Sydney Kingsford Smith

40h 00m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

28h 50m2 stops Singapore Changi Istanbul

$1,621Turkish Airlines

Fri, 6 Nov - Thu, 19 Nov

10:55 - 19:25OPO Porto-SYD Sydney Kingsford Smith

69h 30m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

52h 50m2 stops Singapore Changi Istanbul

$1,622Turkish Airlines

Mon, 9 Nov - Sat, 21 Nov

16:25 - 19:25OPO Porto-SYD Sydney Kingsford Smith

40h 00m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

28h 50m2 stops Singapore Changi Istanbul

$1,625Turkish Airlines

Thu, 5 Nov - Thu, 19 Nov

16:25 - 19:25OPO Porto-SYD Sydney Kingsford Smith

64h 00m2 stops Istanbul Singapore Changi

21:35 - 09:55SYD Sydney Kingsford Smith-OPO Porto

47h 20m2 stops Singapore Changi Istanbul

$1,631Turkish Airlines

Mon, 1 Feb - Sun, 21 Feb

16:25 - 19:25OPO Porto-SYD Sydney Kingsford Smith

40h 00m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

28h 50m2 stops Singapore Changi Istanbul

$1,634Turkish Airlines

Thu, 5 Nov - Thu, 19 Nov

16:25 - 19:25OPO Porto-SYD Sydney Kingsford Smith

40h 00m2 stops Istanbul Singapore Changi

21:35 - 09:55SYD Sydney Kingsford Smith-OPO Porto

47h 20m2 stops Singapore Changi Istanbul

$1,638Turkish Airlines

Thu, 5 Nov - Thu, 19 Nov

16:10 - 19:25OPO Porto-SYD Sydney Kingsford Smith

40h 15m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

28h 50m2 stops Singapore Changi Istanbul

$1,639Turkish Airlines

Tue, 10 Nov - Tue, 17 Nov

10:55 - 19:25OPO Porto-SYD Sydney Kingsford Smith

45h 30m2 stops Istanbul Singapore Changi

21:35 - 15:25SYD Sydney Kingsford Smith-OPO Porto

28h 50m2 stops Singapore Changi Istanbul

$1,654Turkish Airlines

Tue, 12 Jan - Sun, 31 Jan

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British Airways flights from Porto to Sydney

Our best British Airways deals on Porto to Sydney flight tickets

British Airways

2 Nov

OPO17:35Porto

51h 20m

2 stops

SYD07:55Sydney Kingsford Smith

22 Nov

SYD16:20Sydney Kingsford Smith

35h 25m

2 stops

OPO16:45Porto

$1,618

British Airways

30 Oct

OPO18:05Porto

49h 50m

2 stops

SYD06:55Sydney Kingsford Smith

25 Nov

SYD16:20Sydney Kingsford Smith

35h 30m

2 stops

OPO16:50Porto

$1,930

Turkish Airlines flights from Porto to Sydney

Our best Turkish Airlines deals on Porto to Sydney flight tickets

Turkish Airlines

5 Nov

OPO10:55Porto

69h 30m

2 stops

SYD19:25Sydney Kingsford Smith

19 Nov

SYD21:35Sydney Kingsford Smith

52h 50m

2 stops

OPO15:25Porto

$1,620

Turkish Airlines

6 Nov

OPO16:25Porto

40h 00m

2 stops

SYD19:25Sydney Kingsford Smith

19 Nov

SYD21:35Sydney Kingsford Smith

28h 50m

2 stops

OPO15:25Porto

$1,621

Turkish Airlines

9 Nov

OPO10:55Porto

69h 30m

2 stops

SYD19:25Sydney Kingsford Smith

21 Nov

SYD21:35Sydney Kingsford Smith

52h 50m

2 stops

OPO15:25Porto

$1,622

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Mon 2/11

17:35-07:55

2 stops51h 20m

Sydney Kingsford Smith

Sun 22/11

16:20-16:45

2 stops35h 25m

$1,618

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Thu 5/11

10:55-19:25

2 stops69h 30m

Sydney Kingsford Smith

Thu 19/11

21:35-15:25

2 stops52h 50m

$1,620

Fastest return journey

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Fri 6/11

16:25-19:25

2 stops40h 00m

Sydney Kingsford Smith

Thu 19/11

21:35-15:25

2 stops28h 50m

$1,621

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Mon 9/11

10:55-19:25

2 stops69h 30m

Sydney Kingsford Smith

Sat 21/11

21:35-15:25

2 stops52h 50m

$1,622

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Thu 5/11

16:25-19:25

2 stops40h 00m

Sydney Kingsford Smith

Thu 19/11

21:35-15:25

2 stops28h 50m

$1,625

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Mon 1/2

16:25-19:25

2 stops64h 00m

Sydney Kingsford Smith

Sun 21/2

21:35-09:55

2 stops47h 20m

$1,631

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Thu 5/11

16:25-19:25

2 stops40h 00m

Sydney Kingsford Smith

Thu 19/11

21:35-15:25

2 stops28h 50m

$1,634

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Thu 5/11

16:25-19:25

2 stops40h 00m

Sydney Kingsford Smith

Thu 19/11

21:35-09:55

2 stops47h 20m

$1,638

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Tue 10/11

16:10-19:25

2 stops40h 15m

Sydney Kingsford Smith

Tue 17/11

21:35-15:25

2 stops28h 50m

$1,639

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Tue 12/1

10:55-19:25

2 stops45h 30m

Sydney Kingsford Smith

Sun 31/1

21:35-15:25

2 stops28h 50m

$1,654

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Porto to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Sydney?

The month of June is, on average, the cheapest month to fly to Sydney from Porto, with most prices found around $0. If you aren’t able to travel to Sydney during the month of June, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $0.

When to book flights from Porto to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Porto to Sydney (OPO to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Sydney

Best price found	$831
Fastest flight time	35h 05m
Direct flights	None

The best one-way flight to Sydney from Porto in the past 72 hours is $831. The best return flight deal from Porto to Sydney found on momondo in the last 72 hours is $1,618.

The fastest flight from Porto to Sydney takes 35h 05m

There are no direct flights from Porto to Sydney. There are no popular flight routes from Porto to Sydney.

Search flight deals

Frequently asked questions about flying from Porto to Sydney

How far is Porto to Sydney Kingsford Smith by plane?
Porto and Sydney Kingsford Smith are 18054.7 km apart from one another. 35h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Porto Airport to Sydney Kingsford Smith Airport?
Prices for flights from Porto Airport to Sydney Kingsford Smith Airport were last updated today.
How old do you have to be to fly from Porto Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why should I use momondo to find a flight deal from Porto to Sydney?

It is quick and easy to find Porto to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Porto to Sydney with flexible booking policies on momondo?

All flight searches from Porto to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Porto to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Porto to Sydney.

I’m not ready to book a flight from Porto to Sydney right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Porto to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.