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Cheap flights from Sydney to Porto from $704

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — OPO
26 Aug — 2 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 27 July 2026.

Wed 11/1116:50
SYD
-
OPO
2 stops48h 55m
Etihad Airways
Sun 15/1107:35
OPO
-
SYD
2 stops35h 55m
Etihad Airways
Deal found 24/7$1,795
Thu 24/920:50
SYD
-
OPO
2 stops43h 00m
Etihad Airways
Sat 24/1016:05
OPO
-
SYD
2 stops28h 25m
Etihad Airways
Deal found 27/7$1,870
Sat 15/811:00
SYD
-
OPO
2 stops45h 20m
Multiple Airlines
Thu 20/806:40
OPO
-
SYD
2 stops41h 20m
Multiple Airlines
Deal found 26/7$1,882
Thu 24/920:50
SYD
-
OPO
3 stops44h 10m
Multiple Airlines
Sat 24/1007:00
OPO
-
SYD
3 stops37h 30m
Multiple Airlines
Deal found 27/7$2,056
Fri 21/815:40
SYD
-
OPO
2 stops48h 10m
Etihad Airways
Fri 28/816:05
OPO
-
SYD
2 stops29h 05m
Etihad Airways
Deal found 24/7$2,065
Thu 30/719:40
SYD
-
OPO
2 stops34h 40m
Multiple Airlines
Wed 30/915:15
OPO
-
SYD
3 stops32h 05m
Multiple Airlines
Deal found 27/7$2,069
Tue 1/915:40
SYD
-
OPO
2 stops34h 35m
Multiple Airlines
Sun 20/920:10
OPO
-
SYD
2 stops35h 40m
Multiple Airlines
Deal found 25/7$2,075
Fri 24/715:40
SYD
-
OPO
2 stops48h 10m
Etihad Airways
Thu 27/820:10
OPO
-
SYD
2 stops49h 00m
Etihad Airways
Deal found 23/7$2,128
Mon 7/920:50
SYD
-
OPO
2 stops35h 00m
Multiple Airlines
Mon 14/911:20
OPO
-
SYD
2 stops33h 50m
Multiple Airlines
Deal found 23/7$2,134

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 27 July 2026.

Round-trip from

$1,870

One-way from

$704

Popular in

December

Cheapest in

February

Average price

$2,184
Etihad Airways
  • Etihad Airways
  • 24/9-24/10
  • 4 total stops
  • 71h 25m total
  • Sydney to Porto
Search Deals
17/8
  • 17/8
  • 3 total stops
  • 50h 55m total
  • Sydney to Porto
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($319 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($125 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 27 July 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 - OPO

SYDOPO

Sydney Kingsford Smith

Wed 11/11

16:50-06:45

2 stops48h 55m

Porto

Sun 15/11

07:35-06:30

2 stops35h 55m

$1,795

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 1/9

15:40-17:15

2 stops34h 35m

Porto

Sun 20/9

20:10-16:50

2 stops35h 40m

$2,075
Fastest return journey

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 7/9

20:50-22:50

2 stops35h 00m

Porto

Mon 14/9

11:20-06:10

2 stops33h 50m

$2,134

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 5/9

20:50-23:05

2 stops35h 15m

Porto

Sat 26/9

13:55-09:00

2 stops34h 05m

$2,291

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Wed 2/9

14:50-17:25

2 stops35h 35m

Porto

Fri 2/10

11:20-06:10

2 stops33h 50m

$2,638

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 8/9

06:00-19:00

2 stops46h 00m

Porto

Tue 15/9

10:00-17:30

2 stops46h 30m

$3,239
Cheapest one-way

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 17/8

20:30-23:20

2 stops35h 50m

$793

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 20/8

21:00-18:40

3 stops54h 40m

$827

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Wed 19/8

20:30-18:45

2 stops55h 15m

$957
Fastest single journey

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 6/8

21:05-15:45

1 stop27h 40m

$2,416

Flights are sorted by cheapest return flights first.

Deals found on 26/7

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
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 $2,410 and $2,914 in November.
The cheapest return price found within the last 5 days was $1,795 on Etihad Airways (11 Nov–15 Nov).

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 27 July 2026.
Get a feel of what it's like to fly with KLM,Air France, andTurkish Airlines 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
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

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
1,550 reviews
KLM
7.8
Good
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

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
1,627 reviews
KLM
7.8
Good
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

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
4,451 reviews
KLM
7.8
Good
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Qatar Airways
7.3
Good
3,743 reviews
KLM
7.8
Good
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

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
1,490 reviews
KLM
7.8
Good
1,550 reviews
Check prices

Food

7.3

Entertainment

7.2

Comfort

7.7

Boarding

7.8

Overall

7.8

Crew

8.4

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 48h 55m. 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 $1,209 on this airline. Additional options worth looking into are Etihad Airways and Qatar Airways, starting at $1,382 and $1,687 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 27 July 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 27 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,209Average$1,633FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Etihad AirwaysCheapest$1,382Average$1,794FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest$1,687Average$2,307FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Turkish AirlinesCheapest$1,703Average$1,943FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
United AirlinesCheapest$1,919Average$2,341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$1,949Average$2,564FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest$1,977Average$2,496FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest$2,267Average$2,778FlexibilityNo 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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