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Cheap flights from Sydney to Porto from $651

SYD — OPO
11 Oct — 18 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Porto

Tue 13/1021:35 -
2 stops43h 15m
Fri 30/1005:00 -
2 stops25h 45m
Deal found 11/9$1,886
Thu 8/1022:05 -
2 stops27h 40m
Thu 29/1010:55 -
2 stops45h 30m
Deal found 10/9$1,933
Wed 18/1116:50 -
2 stops33h 25m
Sun 22/1107:35 -
2 stops35h 55m
Deal found 10/9$1,950
Thu 8/1021:35 -
2 stops43h 15m
Thu 29/1021:55 -
2 stops32h 50m
Deal found 8/9$1,974
Wed 7/1006:00 -
2 stops44h 10m
Wed 14/1014:05 -
2 stops43h 00m
Deal found 7/9$2,288

Find flight deals from Sydney to Porto

Round-trip from

$1,886

One-way from

$651

Popular in

December

Cheapest in

February

Average price

$2,480
Etihad Airways
  • Etihad Airways
  • 13/10-30/10
  • 4 total stops
  • 69h 00m total
  • Sydney to Porto
Search Deals
1/11-31/12
  • 1/11-31/12
  • 3 total stops
  • 33h 25m total
  • Sydney to Porto
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($96 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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

Wed 4/11

11:10-21:20

3 stops45h 10m

Porto

Wed 31/12

00:00-09:00

Nonstop0h 00m

$672

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Thu 5/11

21:25-13:00

2 stops50h 35m

Porto

Wed 31/12

00:00-09:00

Nonstop0h 00m

$730

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 3/11

21:00-08:10

3 stops46h 10m

Porto

Wed 31/12

00:00-09:00

Nonstop0h 00m

$765

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 6/11

12:00-12:35

2 stops35h 35m

Porto

Wed 31/12

00:00-09:00

Nonstop0h 00m

$815
Fastest return journey

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Mon 2/11

16:50-09:35

2 stops27h 45m

Porto

Wed 31/12

00:00-09:00

Nonstop0h 00m

$853

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 13/10

21:35-06:50

2 stops43h 15m

Porto

Fri 30/10

05:00-17:45

2 stops25h 45m

$1,886

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Thu 8/10

22:05-15:45

2 stops27h 40m

Porto

Thu 29/10

10:55-19:25

2 stops45h 30m

$1,933

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Wed 18/11

16:50-15:15

2 stops33h 25m

Porto

Sun 22/11

07:35-06:30

2 stops35h 55m

$1,950

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Wed 7/10

06:00-16:10

2 stops44h 10m

Porto

Wed 14/10

14:05-19:05

2 stops43h 00m

$2,288

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Thu 8/10

17:55-23:50

3 stops39h 55m

Porto

Thu 29/10

11:00-08:35

3 stops34h 35m

$2,299

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Sydney with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sydney to Porto

How much does it cost for a return flight from Sydney to Porto?

Airfare is below average for this route at the moment.

Sydney to Porto flights typically cost between $2,265 and $2,701 in October.
The cheapest return price found within the last 5 days was $1,886 on Etihad Airways (13 Oct–30 Oct).

Reviews of airlines servicing Porto

Get a feel of what it's like to fly with KLM,Air France, andQatar Airways from Sydney to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
KLM
7.8
Good
1,576 reviews
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
Air France
7.5
Good
1,651 reviews
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
Qatar Airways
7.4
Good
3,734 reviews
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
Turkish Airlines
7.4
Good
4,473 reviews
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy
Etihad Airways
7.3
Good
1,535 reviews
KLM
7.8
Good
1,576 reviews
Check prices

Food

7.3

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.2

Reviews

1 / 20
4.0
Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

  • How long is the flight from Sydney to Porto?

    Airlines like Etihad Airways and Turkish Airlines fly from Sydney to Porto in about 27h 40m. The time it takes to get you to your destination can typically vary by up to 15h 35m. Sydney and Porto are separated by a distance of 18057 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Sydney to Porto round-trip?

    Our cheapest airline available from Sydney to Porto is Etihad Airways. Our recent data shows that you can find tickets from as low as $1,523 on this airline. Additional options worth looking into are Turkish Airlines and Qatar Airways, starting at $1,608 and $1,640 round-trip. You may be able to fly from Sydney to Porto for 28% less than the average price by searching for these airlines.

  • Can I find deals for flights from Sydney to Porto that include hotel bookings?

    Yes. In addition to deals on Sydney to Porto flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Porto.

  • Can I find deals for business class flights from Sydney to Porto?

    Yes. Cheapflights offers flight deals from Sydney to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Viseu

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Fly from Sydney to Porto on these airlines

KLM flights from Sydney Kingsford Smith to Porto
Air France flights from Sydney Kingsford Smith to Porto

Top 6 airlines flying from Sydney to Porto

AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,523Average$1,790FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest$1,608Average$1,885FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest$1,640Average$2,243FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
LufthansaCheapest$1,894Average$2,492FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest$1,922Average$2,426FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest$2,198Average$2,806FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Sydney today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sydney to Porto?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sydney to Porto for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sydney to Porto with no change fees?

Certainly. Search results for flights to Porto from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Sydney to Porto become cheaper?

Yes! Start tracking prices for Sydney to Porto flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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