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Cheap flights from Sydney to Porto from $688

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Porto departing on 31/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:40 - 06:50SYD  Sydney Kingsford Smith-OPO Porto
44h 10m2 stops Beijing Capital Madrid Barajas
Multiple Airlines Logo
07:35 - 15:50OPO  Porto-SYD Sydney Kingsford Smith
46h 15m2 stops Madrid Barajas Beijing Capital
$1,512Multiple Airlines
Sat, 3 Oct - Sun, 18 Oct
Multiple Airlines Logo
12:00 - 12:35SYD  Sydney Kingsford Smith-OPO Porto
35h 35m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
12:00 - 10:00OPO  Porto-SYD Sydney Kingsford Smith
35h 00m3 stops Lisbon Humberto Delgado London Heathrow Shanghai Pu Dong
$1,673Multiple Airlines
Fri, 13 Nov - Sat, 28 Nov
Multiple Airlines Logo
12:00 - 22:00SYD  Sydney Kingsford Smith-OPO Porto
45h 00m3 stops Shanghai Pu Dong London Gatwick Lisbon Humberto Delgado
Multiple Airlines Logo
11:00 - 10:00OPO  Porto-SYD Sydney Kingsford Smith
36h 00m3 stops Lisbon Humberto Delgado London Heathrow Shanghai Pu Dong
$1,694Multiple Airlines
Fri, 13 Nov - Sat, 28 Nov
Etihad Airways Logo
21:30 - 19:20SYD  Sydney Kingsford Smith-OPO Porto
56h 50m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Etihad Airways Logo
07:35 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
35h 55m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,706Etihad Airways
Fri, 13 Nov - Sat, 28 Nov
Etihad Airways Logo
21:30 - 15:15SYD  Sydney Kingsford Smith-OPO Porto
52h 45m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Etihad Airways Logo
20:10 - 17:45OPO  Porto-SYD Sydney Kingsford Smith
58h 35m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,739Etihad Airways
Mon, 16 Nov - Mon, 30 Nov
Etihad Airways Logo
21:35 - 06:50SYD  Sydney Kingsford Smith-OPO Porto
43h 15m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Etihad Airways Logo
16:05 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
28h 25m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,776Etihad Airways
Thu, 8 Oct - Sat, 24 Oct
Turkish Airlines Logo
21:05 - 15:40SYD  Sydney Kingsford Smith-OPO Porto
27h 35m2 stops Kuala Lumpur Intl Istanbul
Turkish Airlines Logo
06:30 - 19:10OPO  Porto-SYD Sydney Kingsford Smith
27h 40m2 stops Istanbul Kuala Lumpur Intl
$2,219Turkish Airlines
Tue, 8 Sep - Mon, 14 Sep
Turkish Airlines Logo
10:00 - 15:40SYD  Sydney Kingsford Smith-OPO Porto
62h 40m2 stops Bangkok Suvarnabhumi Istanbul
Turkish Airlines Logo
06:30 - 19:10OPO  Porto-SYD Sydney Kingsford Smith
27h 40m2 stops Istanbul Kuala Lumpur Intl
$2,387Turkish Airlines
Tue, 8 Sep - Mon, 14 Sep
KLM Logo
10:10 - 10:55SYD  Sydney Kingsford Smith-OPO Porto
33h 45m3 stops Denpasar Bali Ngurah Rai Singapore Changi Amsterdam Schiphol
KLM Logo
16:20 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
29h 10m3 stops Amsterdam Schiphol Singapore Changi Denpasar Bali Ngurah Rai
$4,344KLM
Sat, 5 Sep - Mon, 28 Sep
KLM Logo
10:10 - 10:55SYD  Sydney Kingsford Smith-OPO Porto
33h 45m3 stops Denpasar Bali Ngurah Rai Singapore Changi Amsterdam Schiphol
KLM Logo
16:20 - 07:30OPO  Porto-SYD Sydney Kingsford Smith
29h 10m3 stops Amsterdam Schiphol Singapore Changi Denpasar Bali Ngurah Rai
$4,899KLM
Sat, 3 Oct - Sun, 18 Oct

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Etihad Airways flights from Sydney to Porto

Our best Etihad Airways deals on Sydney to Porto flight tickets
Etihad Airways
13 Nov
SYD21:30Sydney Kingsford Smith
56h 50m
2 stops
OPO19:20Porto
28 Nov
OPO07:35Porto
35h 55m
2 stops
SYD06:30Sydney Kingsford Smith
$1,706
Etihad Airways
16 Nov
SYD21:30Sydney Kingsford Smith
52h 45m
2 stops
OPO15:15Porto
30 Nov
OPO20:10Porto
58h 35m
2 stops
SYD17:45Sydney Kingsford Smith
$1,739
Etihad Airways
8 Oct
SYD21:35Sydney Kingsford Smith
43h 15m
2 stops
OPO06:50Porto
24 Oct
OPO16:05Porto
28h 25m
2 stops
SYD06:30Sydney Kingsford Smith
$1,776

Emirates flights from Sydney to Porto

Our best Emirates deals on Sydney to Porto flight tickets
Emirates
28 Sept
SYD20:10Sydney Kingsford Smith
37h 30m
2 stops
OPO00:40Porto
5 Oct
OPO16:00Porto
65h 05m
2 stops
SYD19:05Sydney Kingsford Smith
$3,250
Emirates
12 Sept
SYD14:45Sydney Kingsford Smith
37h 15m
3 stops
OPO19:00Porto
16 Sept
OPO10:00Porto
34h 10m
3 stops
SYD05:10Sydney Kingsford Smith
$3,302
Emirates
27 Sept
SYD20:45Sydney Kingsford Smith
36h 55m
2 stops
OPO00:40Porto
4 Oct
OPO18:00Porto
42h 30m
2 stops
SYD22:30Sydney Kingsford Smith
$3,339

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 15 August 2026.
Use the filters below to find and compare flights from Sydney to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 3/10

19:40-06:50

2 stops44h 10m

Porto

Sun 18/10

07:35-15:50

2 stops46h 15m

$1,512

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 13/11

12:00-12:35

2 stops35h 35m

Porto

Sat 28/11

12:00-10:00

3 stops35h 00m

$1,673

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 13/11

12:00-22:00

3 stops45h 00m

Porto

Sat 28/11

11:00-10:00

3 stops36h 00m

$1,694

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 13/11

21:30-19:20

2 stops56h 50m

Porto

Sat 28/11

07:35-06:30

2 stops35h 55m

$1,706

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Mon 16/11

21:30-15:15

2 stops52h 45m

Porto

Mon 30/11

20:10-17:45

2 stops58h 35m

$1,739

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Thu 8/10

21:35-06:50

2 stops43h 15m

Porto

Sat 24/10

16:05-06:30

2 stops28h 25m

$1,776
Fastest return journey

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 8/9

21:05-15:40

2 stops27h 35m

Porto

Mon 14/9

06:30-19:10

2 stops27h 40m

$2,219

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 8/9

10:00-15:40

2 stops62h 40m

Porto

Mon 14/9

06:30-19:10

2 stops27h 40m

$2,387

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 5/9

10:10-10:55

3 stops33h 45m

Porto

Mon 28/9

16:20-06:30

3 stops29h 10m

$4,344

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 3/10

10:10-10:55

3 stops33h 45m

Porto

Sun 18/10

16:20-07:30

3 stops29h 10m

$4,899

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Sydney to Porto

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

What is the typical price of a round-trip flight between Sydney and Porto?

Prices are currently low for flights on this route.

Typical prices usually range from $2,295 to $2,960.
The lowest price recently found on this route was $1,512.

What is the cheapest month to fly to Porto?

In general, November is the cheapest month to fly from Sydney to Porto. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Porto during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,484.

Can stopping save me money on Sydney to Porto flights?

You could potentially save up to 11% on your flight if you consider stops on a Sydney to Porto flight.

How have Sydney to Porto flight prices changed over time?

When to book flights from Sydney to Porto

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

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

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

Fastest flight time

27h 35m

Direct flights

None
The fastest flight from Sydney to Porto takes 27h 35m
There are no direct flights from Sydney to Porto. There are no popular flight routes from Sydney to Porto.
Search flight deals

Frequently asked questions about flying from Sydney to Porto

  • How far is Sydney Kingsford Smith to Porto by plane?

    Porto is 18054.7 km away from Sydney Kingsford Smith. Flights usually cover this in 27h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Sydney Kingsford Smith Airport to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Porto Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sydney to Porto?

Best airlines flying from Sydney to Porto

Compare and see reviews for airlines that fly from Sydney to Porto with momondo
Airline
Rating
Free cancellation
Price
Japan AirlinesPriceFrom $1,193Free cancellationRating
8.3
1,905 reviews
Search Japan Airlines flights
Etihad AirwaysPriceFrom $1,404Free cancellationRating
7.3
1,505 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $1,634Free cancellationRating
7.4
4,477 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,666Free cancellationRating
7.4
3,738 reviews
Search Qatar Airways flights
LufthansaPriceFrom $1,924Free cancellationRating
6.8
8,195 reviews
Search Lufthansa flights
KLMPriceFrom $2,233Free cancellationRating
7.8
1,559 reviews
Search KLM flights

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Aveiro
Vila Nova de Gaia
Braga
Viseu
Baiao

Why use momondo?

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

Finding the right flight to Porto from Sydney is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Sydney to Porto flights to just show those with flexible booking policies.

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

Once all potential Sydney to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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