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Cheap flights from Sydney to Porto from $747

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 2/9. 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
16:40 - 06:50SYD  Sydney Kingsford Smith-OPO Porto
48h 10m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Multiple Airlines Logo
14:35 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
28h 55m2 stops Barcelona-El Prat Abu Dhabi Zayed Intl
$1,704Multiple Airlines
Fri, 9 Oct - Fri, 20 Nov
Multiple Airlines Logo
16:40 - 23:40SYD  Sydney Kingsford Smith-OPO Porto
41h 00m2 stops Abu Dhabi Zayed Intl London Heathrow
Multiple Airlines Logo
12:00 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
55h 30m2 stops Geneva Geneve-Cointrin Abu Dhabi Zayed Intl
$1,750Multiple Airlines
Sun, 11 Oct - Tue, 3 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
11:35 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
31h 55m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,771Etihad Airways
Tue, 17 Nov - Sat, 21 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
11:35 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
31h 55m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,777Etihad Airways
Tue, 17 Nov - Sat, 21 Nov
Multiple Airlines Logo
22:05 - 09:40SYD  Sydney Kingsford Smith-OPO Porto
45h 35m2 stops Kuala Lumpur Intl Istanbul
Multiple Airlines Logo
21:55 - 20:20OPO  Porto-SYD Sydney Kingsford Smith
35h 25m3 stops Barcelona-El Prat London Gatwick Guangzhou Baiyun
$1,967Multiple Airlines
Sun, 11 Oct - Tue, 3 Nov
Turkish Airlines Logo
22:05 - 09:40SYD  Sydney Kingsford Smith-OPO Porto
45h 35m2 stops Kuala Lumpur Intl Istanbul
Turkish Airlines Logo
10:55 - 19:35OPO  Porto-SYD Sydney Kingsford Smith
45h 40m1 stop Istanbul
$2,089Turkish Airlines
Sun, 11 Oct - Tue, 3 Nov
Turkish Airlines Logo
10:00 - 09:45SYD  Sydney Kingsford Smith-OPO Porto
56h 45m2 stops Bangkok Suvarnabhumi Istanbul
Turkish Airlines Logo
16:40 - 19:10OPO  Porto-SYD Sydney Kingsford Smith
41h 30m2 stops Istanbul Kuala Lumpur Intl
$2,281Turkish Airlines
Fri, 4 Sep - Wed, 16 Sep
KLM Logo
12:40 - 10:40SYD  Sydney Kingsford Smith-OPO Porto
32h 00m3 stops Jakarta Soekarno-Hatta Intl Kuala Lumpur Intl Amsterdam Schiphol
KLM Logo
16:10 - 08:10OPO  Porto-SYD Sydney Kingsford Smith
29h 00m3 stops Amsterdam Schiphol Singapore Changi Denpasar Bali Ngurah Rai
$2,564KLM
Sun, 11 Oct - Tue, 3 Nov
KLM Logo
11:10 - 15:30SYD  Sydney Kingsford Smith-OPO Porto
38h 20m3 stops Denpasar Bali Ngurah Rai Singapore Changi Amsterdam Schiphol
KLM Logo
16:10 - 08:10OPO  Porto-SYD Sydney Kingsford Smith
29h 00m3 stops Amsterdam Schiphol Singapore Changi Denpasar Bali Ngurah Rai
$3,438KLM
Fri, 9 Oct - Fri, 20 Nov
United Airlines Logo
09:30 - 09:45SYD  Sydney Kingsford Smith-OPO Porto
57h 15m2 stops Los Angeles Los Angeles Newark
United Airlines Logo
12:35 - 07:00OPO  Porto-SYD Sydney Kingsford Smith
33h 25m2 stops Newark Los Angeles Los Angeles
$3,919United Airlines
Sat, 19 Sep - Sat, 26 Sep

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Etihad Airways flights from Sydney to Porto

Our best Etihad Airways deals on Sydney to Porto flight tickets
Etihad Airways
17 Nov
SYD21:30Sydney Kingsford Smith
52h 45m
2 stops
OPO15:15Porto
21 Nov
OPO11:35Porto
31h 55m
2 stops
SYD06:30Sydney Kingsford Smith
$1,771
Etihad Airways
17 Nov
SYD21:30Sydney Kingsford Smith
52h 45m
2 stops
OPO15:15Porto
21 Nov
OPO11:35Porto
31h 55m
2 stops
SYD06:30Sydney Kingsford Smith
$1,777
Etihad Airways
17 Nov
SYD21:30Sydney Kingsford Smith
52h 45m
2 stops
OPO15:15Porto
21 Nov
OPO11:35Porto
31h 55m
2 stops
SYD06:30Sydney Kingsford Smith
$1,778

Emirates flights from Sydney to Porto

Our best Emirates deals on Sydney to Porto flight tickets
Emirates
16 Sept
SYD20:45Sydney Kingsford Smith
36h 55m
2 stops
OPO00:40Porto
23 Sept
OPO18:00Porto
27h 05m
2 stops
SYD06:05Sydney Kingsford Smith
$3,247
Emirates
21 Sept
SYD06:00Sydney Kingsford Smith
46h 00m
2 stops
OPO19:00Porto
28 Sept
OPO16:00Porto
53h 05m
2 stops
SYD06:05Sydney Kingsford Smith
$3,260
Emirates
20 Sept
SYD20:10Sydney Kingsford Smith
35h 50m
2 stops
OPO23:00Porto
27 Sept
OPO18:00Porto
51h 05m
2 stops
SYD06:05Sydney Kingsford Smith
$3,265

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 7 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

Fri 9/10

16:40-06:50

2 stops48h 10m

Porto

Fri 20/11

14:35-06:30

2 stops28h 55m

$1,704

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 11/10

16:40-23:40

2 stops41h 00m

Porto

Tue 3/11

12:00-06:30

2 stops55h 30m

$1,750

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 17/11

21:30-15:15

2 stops52h 45m

Porto

Sat 21/11

11:35-06:30

2 stops31h 55m

$1,771

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 17/11

21:30-15:15

2 stops52h 45m

Porto

Sat 21/11

11:35-06:30

2 stops31h 55m

$1,777

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 11/10

22:05-09:40

2 stops45h 35m

Porto

Tue 3/11

21:55-20:20

3 stops35h 25m

$1,967

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 11/10

22:05-09:40

2 stops45h 35m

Porto

Tue 3/11

10:55-19:35

1 stop45h 40m

$2,089

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 4/9

10:00-09:45

2 stops56h 45m

Porto

Wed 16/9

16:40-19:10

2 stops41h 30m

$2,281
Fastest return journey

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 11/10

12:40-10:40

3 stops32h 00m

Porto

Tue 3/11

16:10-08:10

3 stops29h 00m

$2,564

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 9/10

11:10-15:30

3 stops38h 20m

Porto

Fri 20/11

16:10-08:10

3 stops29h 00m

$3,438

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 19/9

09:30-09:45

2 stops57h 15m

Porto

Sat 26/9

12:35-07:00

2 stops33h 25m

$3,919

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 $2,392 to $2,870.
The lowest price recently found on this route was $1,704.

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 $1,491.

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?

As of August 2026, prices for Sydney to Porto flights are approximately 34% cheaper when compared to flights at the same time last year.

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

35h 00m

Direct flights

None
The fastest flight from Sydney to Porto takes 35h 00m
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 35h 00m, 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 $1,200Free cancellationRating
8.3
1,893 reviews
Search Japan Airlines flights
Etihad AirwaysPriceFrom $1,371Free cancellationRating
7.3
1,498 reviews
Search Etihad Airways flights
Qatar AirwaysPriceFrom $1,675Free cancellationRating
7.4
3,739 reviews
Search Qatar Airways flights
Turkish AirlinesPriceFrom $1,690Free cancellationRating
7.4
4,475 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $1,905Free cancellationRating
7.4
10,085 reviews
Search United Airlines flights
LufthansaPriceFrom $1,934Free cancellationRating
6.8
8,177 reviews
Search Lufthansa flights
Air FrancePriceFrom $1,962Free cancellationRating
7.5
1,637 reviews
Search Air France flights
KLMPriceFrom $2,250Free cancellationRating
7.8
1,553 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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