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Cheap flights from Sydney to Porto from $928

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — OPO
6 May — 13 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 6 April 2026.

Mon 18/515:40
SYD
-
OPO
2 stops31h 35m
Multiple Airlines
Mon 25/518:15
OPO
-
SYD
2 stops26h 55m
Multiple Airlines
Deal found 3/4$1,483
Tue 28/719:40
SYD
-
OPO
2 stops32h 40m
Multiple Airlines
Sun 30/807:35
OPO
-
SYD
2 stops46h 15m
Multiple Airlines
Deal found 6/4$1,571
Tue 28/719:40
SYD
-
OPO
2 stops32h 40m
Multiple Airlines
Thu 27/807:35
OPO
-
SYD
2 stops46h 15m
Multiple Airlines
Deal found 6/4$1,606
Tue 28/719:40
SYD
-
OPO
2 stops32h 40m
Multiple Airlines
Tue 8/907:35
OPO
-
SYD
2 stops46h 15m
Multiple Airlines
Deal found 3/4$1,641
Wed 20/515:40
SYD
-
OPO
2 stops28h 55m
Multiple Airlines
Wed 27/514:15
OPO
-
SYD
2 stops30h 55m
Multiple Airlines
Deal found 5/4$1,691
Sun 17/515:40
SYD
-
OPO
2 stops36h 40m
Etihad Airways
Sun 24/511:35
OPO
-
SYD
2 stops33h 35m
Etihad Airways
Deal found 4/4$1,710
Sun 17/515:40
SYD
-
OPO
2 stops31h 40m
Multiple Airlines
Sun 24/506:15
OPO
-
SYD
2 stops25h 35m
Multiple Airlines
Deal found 2/4$1,713
Thu 21/520:50
SYD
-
OPO
2 stops43h 00m
Etihad Airways
Thu 28/520:10
OPO
-
SYD
2 stops35h 40m
Etihad Airways
Deal found 6/4$1,723
Thu 4/611:40
SYD
-
OPO
2 stops31h 00m
Turkish Airlines
Tue 16/616:50
OPO
-
SYD
2 stops31h 50m
Turkish Airlines
Deal found 3/4$1,729
Tue 5/515:40
SYD
-
OPO
2 stops36h 40m
Etihad Airways
Thu 28/520:10
OPO
-
SYD
2 stops35h 40m
Etihad Airways
Deal found 2/4$1,732
Mon 27/719:45
SYD
-
OPO
2 stops34h 35m
Multiple Airlines
Thu 27/822:00
OPO
-
SYD
2 stops55h 50m
Multiple Airlines
Deal found 6/4$1,745

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 6 April 2026.

Round-trip from

$1,483

One-way from

$928

Popular in

December

Cheapest in

January

Average price

$2,512
18/5-25/5
  • 18/5-25/5
  • 4 total stops
  • 58h 30m total
  • Sydney to Porto
Search Deals
16/6
  • 16/6
  • 3 total stops
  • 38h 25m total
  • Sydney to Porto
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($254 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($129 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 6 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

Sun 10/5

15:40-06:50

2 stops48h 10m

Porto

Tue 12/5

11:35-16:50

2 stops44h 15m

$1,862

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 30/5

20:50-06:50

2 stops43h 00m

Porto

Mon 13/7

05:05-16:50

2 stops26h 45m

$1,953

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Fri 24/7

21:30-06:50

2 stops42h 20m

Porto

Thu 27/8

16:05-16:50

2 stops39h 45m

$2,069
Fastest return journey

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 15/6

15:40-15:15

2 stops32h 35m

Porto

Fri 18/9

16:05-06:10

2 stops29h 05m

$2,072

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 15/6

15:40-19:20

2 stops36h 40m

Porto

Thu 17/9

11:35-16:50

2 stops44h 15m

$2,072

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 25/7

21:30-19:20

2 stops54h 50m

Porto

Thu 27/8

16:05-16:50

2 stops39h 45m

$2,072

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 28/7

07:20-15:40

3 stops41h 20m

Porto

Tue 25/8

16:50-09:40

2 stops31h 50m

$2,255

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 4/6

07:20-09:40

3 stops35h 20m

Porto

Tue 16/6

16:50-09:40

2 stops31h 50m

$2,265

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 28/7

07:20-15:40

3 stops41h 20m

Porto

Tue 8/9

16:50-19:10

2 stops41h 20m

$2,445
Cheapest one-way

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sun 26/4

15:40-06:50

2 stops48h 10m

$989

Flights are sorted by cheapest return flights first.

Deals found on 6/4

Showing 1-10 of 14 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?

Use this chart to determine the optimal time to book a return flight from Sydney to Porto. Price data was last updated on 3 April 2026.

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 28 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 6 April 2026.
Get a feel of what it's like to fly with KLM,Qatar Airways, andEtihad 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
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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
7.7
Good
1,490 reviews
KLM
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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
3,730 reviews
KLM
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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
1,428 reviews
KLM
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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
7.3
Good
4,296 reviews
KLM
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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
7,893 reviews
KLM
7.7
Good
1,490 reviews
Check prices

Crew

8.4

Overall

7.7

Comfort

7.6

Entertainment

7.1

Food

7.3

Boarding

7.8

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 Etihad Airways. Our recent data shows that you can find tickets from as low as $1,381 on this airline. Additional options worth looking into are Japan Airlines and Turkish Airlines, starting at $1,543 and $1,671 round-trip. You may be able to fly from Sydney to Porto for 32% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Sydney to Porto one-way?

    The cheapest airline one-way is Etihad Airways, with whom users have recently found tickets for as low as $894. However, be on the lookout for offers from Turkish Airlines and Lufthansa, as they are both options that can get you from Sydney to Porto for a low price.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 6 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 6 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$1,221Average$1,650FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Etihad AirwaysCheapest$1,381Average$1,897FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Turkish AirlinesCheapest$1,671Average$1,946FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest$1,690Average$2,191FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$1,969Average$2,513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest$2,138Average$2,679FlexibilityNo cancel feeOn-time77%
Search Air France flights
Qatar AirwaysCheapest$2,180Average$2,448FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
KLMCheapest$2,348Average$2,916FlexibilityNo 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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