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Cheap flights from Sydney to Porto from $760

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — OPO
9 Sep — 16 Sep1
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
Explore the most affordable flight options available from Sydney to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 August 2026.

Mon 21/911:00 -
2 stops45h 20m
Tue 13/1006:15 -
2 stops41h 45m
Deal found 7/8$1,692
Fri 9/1016:40 -
2 stops48h 10m
Fri 20/1114:35 -
2 stops28h 55m
Deal found 6/8$1,699
Wed 4/1116:50 -
2 stops33h 25m
Sun 8/1107:35 -
2 stops35h 55m
Deal found 6/8$1,794
Mon 21/920:30 -
2 stops35h 50m
Mon 12/1009:10 -
2 stops38h 50m
Deal found 8/8$1,923
Fri 28/820:30 -
2 stops35h 00m
Tue 1/906:15 -
2 stops41h 45m
Deal found 6/8$2,159
Sun 20/920:30 -
2 stops36h 10m
Sun 11/1008:55 -
2 stops39h 05m
Deal found 8/8$2,165
Sun 13/915:40 -
2 stops36h 40m
Wed 23/916:05 -
2 stops29h 05m
Deal found 8/8$2,181
Mon 14/920:50 -
2 stops55h 30m
Mon 21/920:10 -
2 stops59h 40m
Deal found 6/8$2,191
Sun 13/921:05 -
2 stops27h 45m
Wed 23/914:05 -
3 stops33h 15m
Deal found 8/8$2,213

Find flight deals from Sydney to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 August 2026.

Round-trip from

$1,692

One-way from

$760

Popular in

December

Cheapest in

February

Average price

$2,624
21/9-13/10
  • 21/9-13/10
  • 4 total stops
  • 87h 05m total
  • Sydney to Porto
Search Deals
2/10
  • 2/10
  • 3 total stops
  • 37h 15m total
  • Sydney to Porto
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($297 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($122 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights 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, Cheapflights users made 647,157 searches. Data last updated 10 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

$1,699

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Wed 4/11

16:50-15:15

2 stops33h 25m

Porto

Sun 8/11

07:35-06:30

2 stops35h 55m

$1,796

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 13/9

15:40-19:20

2 stops36h 40m

Porto

Wed 23/9

16:05-06:10

2 stops29h 05m

$2,181
Fastest return journey

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 13/9

21:05-15:50

2 stops27h 45m

Porto

Wed 23/9

14:05-08:20

3 stops33h 15m

$2,213

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Mon 14/9

07:35-09:40

3 stops35h 05m

Porto

Mon 21/9

16:50-20:30

2 stops42h 40m

$2,419

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sun 23/8

15:40-15:15

2 stops32h 35m

Porto

Mon 24/8

20:10-16:50

2 stops59h 40m

$2,785

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 28/8

15:40-16:00

2 stops33h 20m

Porto

Tue 1/9

20:10-06:10

2 stops49h 00m

$2,825

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 9/10

22:05-15:40

1 stop27h 35m

Porto

Fri 20/11

10:55-10:20

2 stops36h 25m

$3,015

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 28/8

21:05-09:45

2 stops45h 40m

Porto

Tue 1/9

10:40-19:10

2 stops47h 30m

$3,016

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Mon 21/9

06:00-19:00

2 stops46h 00m

Porto

Mon 28/9

16:00-06:05

2 stops53h 05m

$3,250

Flights are sorted by cheapest return flights first.

Deals found on 8/8

Showing 1-10 of 15 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 $2,400 and $2,862 in September.
The cheapest return price found within the last 5 days was $1,692 on Multiple Airlines (21 Sept–13 Oct).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated 10 August 2026.
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
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.8
Good
1,555 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.5
Good
1,640 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Qatar Airways
7.4
Good
3,740 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.4
Good
4,480 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Etihad Airways
7.3
Good
1,504 reviews
KLM
7.8
Good
1,555 reviews
Check prices

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sydney to Porto?

    Airlines like Etihad Airways fly from Sydney to Porto in about 33h 25m. The time it takes to get you to your destination can typically vary by up to . Sydney and Porto are separated by a distance of 18057 km.

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

    Our cheapest airline available from Sydney to Porto is Japan Airlines. Our recent data shows that you can find tickets from as low as $1,196 on this airline. Additional options worth looking into are Etihad Airways and Turkish Airlines, starting at $1,407 and $1,637 round-trip. You may be able to fly from Sydney to Porto for 40% 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

Choose from the following airlines for your flight from Sydney to Porto. Flights are based on user searches made on Cheapflights and were last updated on 10 August 2026.
KLM flights from Sydney Kingsford Smith to Porto
Air France flights from Sydney Kingsford Smith to Porto

Top 8 airlines flying from Sydney to Porto

Discover the top 8 airlines that operate flights from Sydney to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,196Average$1,599FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Etihad AirwaysCheapest$1,407Average$1,784FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest$1,637Average$1,921FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest$1,670Average$2,250FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
United AirlinesCheapest$1,899Average$2,316FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$1,928Average$2,537FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest$1,956Average$2,470FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest$2,243Average$2,698FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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