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Cheap flights from Sydney to Porto from $873

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — OPO
24 May — 31 May1
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 24 April 2026.

Sat 2/515:40
SYD
-
OPO
2 stops48h 10m
Etihad Airways
Tue 26/516:05
OPO
-
SYD
2 stops39h 45m
Etihad Airways
Deal found 20/4$1,871
Sat 2/515:40
SYD
-
OPO
2 stops48h 10m
Etihad Airways
Thu 28/520:10
OPO
-
SYD
2 stops35h 40m
Etihad Airways
Deal found 20/4$1,885
Fri 31/721:05
SYD
-
OPO
2 stops27h 35m
Turkish Airlines
Fri 11/910:40
OPO
-
SYD
2 stops38h 00m
Turkish Airlines
Deal found 23/4$1,896
Fri 1/515:40
SYD
-
OPO
2 stops27h 55m
Etihad Airways
Thu 14/511:35
OPO
-
SYD
2 stops44h 15m
Etihad Airways
Deal found 23/4$1,898
Sat 2/515:40
SYD
-
OPO
2 stops48h 10m
Etihad Airways
Sun 24/507:05
OPO
-
SYD
2 stops24h 45m
Etihad Airways
Deal found 20/4$1,899
Wed 7/1016:40
SYD
-
OPO
2 stops32h 35m
Etihad Airways
Wed 28/1020:10
OPO
-
SYD
2 stops34h 45m
Etihad Airways
Deal found 21/4$1,939
Thu 4/607:20
SYD
-
OPO
3 stops35h 20m
Multiple Airlines
Thu 11/611:00
OPO
-
SYD
2 stops38h 00m
Multiple Airlines
Deal found 19/4$1,948
Fri 17/715:40
SYD
-
OPO
2 stops36h 40m
Etihad Airways
Fri 28/816:05
OPO
-
SYD
2 stops29h 05m
Etihad Airways
Deal found 21/4$1,953
Sat 20/607:20
SYD
-
OPO
3 stops49h 10m
Multiple Airlines
Thu 25/606:10
OPO
-
SYD
2 stops42h 50m
Multiple Airlines
Deal found 19/4$1,960
Sun 2/813:05
SYD
-
OPO
2 stops35h 45m
Turkish Airlines
Mon 14/910:40
OPO
-
SYD
2 stops38h 00m
Turkish Airlines
Deal found 23/4$1,966

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 24 April 2026.

Round-trip from

$1,939

One-way from

$873

Popular in

December

Cheapest in

January

Average price

$2,432
Etihad Airways
  • Etihad Airways
  • 7/10-28/10
  • 4 total stops
  • 67h 20m total
  • Sydney to Porto
Search Deals
10/6
  • 10/6
  • 3 total stops
  • 43h 35m total
  • Sydney to Porto
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($241 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($121 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 24 April 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

Sat 2/5

15:40-06:50

2 stops48h 10m

Porto

Sun 24/5

07:05-16:50

2 stops24h 45m

$1,899

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Fri 17/7

15:40-19:20

2 stops36h 40m

Porto

Fri 28/8

16:05-06:10

2 stops29h 05m

$1,953

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 20/6

07:20-23:30

3 stops49h 10m

Porto

Thu 25/6

06:10-10:00

2 stops42h 50m

$1,976

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Wed 3/6

15:40-06:50

2 stops48h 10m

Porto

Sat 13/6

16:05-16:50

2 stops39h 45m

$2,015

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 8/6

07:20-09:40

3 stops35h 20m

Porto

Mon 15/6

06:30-10:00

2 stops42h 30m

$2,035

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 16/7

21:30-15:15

2 stops50h 45m

Porto

Fri 28/8

16:05-06:10

2 stops29h 05m

$2,102
Fastest return journey

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Wed 15/7

15:40-15:15

2 stops32h 35m

Porto

Fri 28/8

16:05-06:10

2 stops29h 05m

$2,144

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 14/7

15:40-06:50

2 stops48h 10m

Porto

Fri 28/8

16:05-06:10

2 stops29h 05m

$2,144

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sun 19/7

15:40-06:50

2 stops48h 10m

Porto

Fri 28/8

16:05-06:10

2 stops29h 05m

$2,144

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 2/5

15:40-06:50

2 stops48h 10m

Porto

Thu 28/5

06:00-07:20

3 stops40h 20m

$2,502

Flights are sorted by cheapest return flights first.

Deals found on 21/4

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 far ahead should I book a flight from Sydney to Porto?

The price you pay for your flight from Sydney to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 27 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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 24 April 2026.
Get a feel of what it's like to fly with KLM,Qatar Airways, 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
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,508 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Qatar Airways
7.4
Good
3,727 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Turkish Airlines
7.4
Good
4,325 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Etihad Airways
7.3
Good
1,434 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,946 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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 10m. 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 $1,182 on this airline. Additional options worth looking into are Etihad Airways and Turkish Airlines, starting at $1,342 and $1,618 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 24 April 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 24 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,182Average$1,597FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Etihad AirwaysCheapest$1,342Average$1,791FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest$1,618Average$1,889FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest$1,636Average$2,103FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$1,906Average$2,433FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest$2,069Average$2,593FlexibilityNo cancel feeOn-time77%
Search Air France flights
Qatar AirwaysCheapest$2,110Average$2,344FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
KLMCheapest$2,272Average$2,823FlexibilityNo 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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