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

British Airways is the most popular carrier 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.

$826 Cheap Flights from Porto to Sydney in 2026

Find the cheapest flights from Porto to Sydney

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

12:40 - 10:00

OPO

SYD

34h 20m

2 stops

16:35 - 11:55

SYD

OPO

30h 20m

2 stops

$2,096Multiple Airlines

Fri, 20 Nov - Fri, 5 Feb

16:40 - 06:50

OPO

SYD

27h 10m

2 stops

15:50 - 16:00

SYD

OPO

35h 10m

2 stops

$2,314Qatar Airways

Wed, 4 Nov - Sun, 8 Nov

16:40 - 06:50

OPO

SYD

27h 10m

2 stops

15:50 - 16:00

SYD

OPO

35h 10m

2 stops

$2,317Qatar Airways

Wed, 4 Nov - Sun, 8 Nov

16:40 - 06:50

OPO

SYD

27h 10m

2 stops

15:50 - 16:00

SYD

OPO

35h 10m

2 stops

$2,324Qatar Airways

Wed, 4 Nov - Sun, 8 Nov

12:25 - 06:50

OPO

SYD

31h 25m

2 stops

15:50 - 16:00

SYD

OPO

35h 10m

2 stops

$2,337Qatar Airways

Wed, 4 Nov - Sun, 8 Nov

20:40 - 06:50

OPO

SYD

47h 10m

2 stops

15:50 - 07:40

SYD

OPO

50h 50m

2 stops

$2,340Qatar Airways

Wed, 4 Nov - Sun, 8 Nov

22:00 - 16:50

OPO

SYD

33h 50m

2 stops

07:35 - 09:40

SYD

OPO

59h 05m

3 stops

$2,375Multiple Airlines

Tue, 4 Aug - Sun, 30 Aug

21:30 - 16:50

OPO

SYD

34h 20m

2 stops

22:15 - 15:50

SYD

OPO

50h 35m

2 stops

$2,405Multiple Airlines

Tue, 4 Aug - Sun, 30 Aug

12:25 - 06:50

OPO

SYD

31h 25m

2 stops

15:50 - 11:45

SYD

OPO

30h 55m

2 stops

$2,431Multiple Airlines

Fri, 20 Nov - Sat, 6 Feb

10:40 - 19:10

OPO

SYD

47h 30m

2 stops

20:05 - 21:20

SYD

OPO

36h 15m

2 stops

$2,434Multiple Airlines

Mon, 28 Sep - Wed, 28 Oct

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KLM flights from Porto to Sydney

Our best KLM deals on Porto to Sydney flight tickets

KLM

1 Nov

OPO11:30Porto

33h 05m

2 stops

SYD07:35Sydney Kingsford Smith

8 Nov

SYD11:45Sydney Kingsford Smith

33h 45m

3 stops

OPO10:30Porto

$2,440

KLM

1 Nov

OPO11:30Porto

33h 05m

2 stops

SYD07:35Sydney Kingsford Smith

8 Nov

SYD12:10Sydney Kingsford Smith

34h 15m

2 stops

OPO11:25Porto

$2,444

KLM

20 Nov

OPO16:10Porto

28h 15m

3 stops

SYD07:25Sydney Kingsford Smith

5 Feb

SYD11:45Sydney Kingsford Smith

33h 45m

3 stops

OPO10:30Porto

$2,749

Air Canada flights from Porto to Sydney

Our best Air Canada deals on Porto to Sydney flight tickets

Air Canada

1 Nov

OPO08:30Porto

38h 05m

3 stops

SYD09:35Sydney Kingsford Smith

8 Nov

SYD11:20Sydney Kingsford Smith

41h 10m

3 stops

OPO17:30Porto

$2,599

Air Canada

4 Aug

OPO12:15Porto

34h 05m

3 stops

SYD07:20Sydney Kingsford Smith

30 Aug

SYD09:20Sydney Kingsford Smith

54h 40m

3 stops

OPO07:00Porto

$3,566

Air Canada

19 July

OPO03:00Porto

43h 20m

3 stops

SYD07:20Sydney Kingsford Smith

21 Aug

SYD09:20Sydney Kingsford Smith

35h 45m

3 stops

OPO12:05Porto

$4,103

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSydney

OPO - SYD

OPOSYD

Porto

Fri 20/11

12:40-10:00

2 stops34h 20m

Sydney Kingsford Smith

Fri 5/2

16:35-11:55

2 stops30h 20m

$2,096

Fastest return journey

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

16:40-06:50

2 stops27h 10m

Sydney Kingsford Smith

Sun 8/11

15:50-16:00

2 stops35h 10m

$2,314

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

16:40-06:50

2 stops27h 10m

Sydney Kingsford Smith

Sun 8/11

15:50-16:00

2 stops35h 10m

$2,317

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

16:40-06:50

2 stops27h 10m

Sydney Kingsford Smith

Sun 8/11

15:50-16:00

2 stops35h 10m

$2,324

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

12:25-06:50

2 stops31h 25m

Sydney Kingsford Smith

Sun 8/11

15:50-16:00

2 stops35h 10m

$2,337

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

20:40-06:50

2 stops47h 10m

Sydney Kingsford Smith

Sun 8/11

15:50-07:40

2 stops50h 50m

$2,340

PortoSydney

OPO - SYD

OPOSYD

Porto

Tue 4/8

22:00-16:50

2 stops33h 50m

Sydney Kingsford Smith

Sun 30/8

07:35-09:40

3 stops59h 05m

$2,375

PortoSydney

OPO - SYD

OPOSYD

Porto

Tue 4/8

21:30-16:50

2 stops34h 20m

Sydney Kingsford Smith

Sun 30/8

22:15-15:50

2 stops50h 35m

$2,405

PortoSydney

OPO - SYD

OPOSYD

Porto

Fri 20/11

12:25-06:50

2 stops31h 25m

Sydney Kingsford Smith

Sat 6/2

15:50-11:45

2 stops30h 55m

$2,431

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 28/9

10:40-19:10

2 stops47h 30m

Sydney Kingsford Smith

Wed 28/10

20:05-21:20

2 stops36h 15m

$2,434

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 April 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 April, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $2,037.

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

Fastest flight time	33h 50m
Direct flights	None

The fastest flight from Porto to Sydney takes 33h 50m

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

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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. 33h 50m 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.

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