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Cheap flights from Portugal to Sydney from $777

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SYD
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portugal to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Portugal to Sydney
Explore the most affordable flight options available from Portugal to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 June 2026.

Tue 11/806:15
OPO
-
SYD
2 stops28h 10m
Multiple Airlines
Tue 18/821:45
SYD
-
OPO
2 stops33h 55m
Multiple Airlines
Deal found 26/6$1,486
Tue 22/908:35
LIS
-
SYD
3 stops39h 15m
Multiple Airlines
Tue 6/1021:35
SYD
-
LIS
1 stop43h 50m
Multiple Airlines
Deal found 25/6$1,821
Fri 30/1011:25
LIS
-
SYD
2 stops32h 10m
Multiple Airlines
Sun 1/1116:35
SYD
-
LIS
1 stop25h 20m
Multiple Airlines
Deal found 26/6$1,925
Fri 20/1116:05
LIS
-
SYD
2 stops40h 10m
Multiple Airlines
Sat 6/220:45
SYD
-
LIS
2 stops30h 45m
Multiple Airlines
Deal found 26/6$1,937
Fri 27/1111:25
LIS
-
SYD
2 stops32h 10m
Multiple Airlines
Fri 5/221:30
SYD
-
LIS
1 stop44h 25m
Multiple Airlines
Deal found 24/6$1,979
Mon 21/915:15
OPO
-
SYD
2 stops43h 05m
Multiple Airlines
Tue 6/1022:05
SYD
-
OPO
2 stops27h 35m
Multiple Airlines
Deal found 29/6$2,027
Sun 5/706:10
LIS
-
SYD
2 stops25h 40m
Multiple Airlines
Tue 21/713:00
SYD
-
LIS
2 stops41h 55m
Multiple Airlines
Deal found 27/6$2,035
Sun 5/708:55
LIS
-
SYD
1 stop36h 15m
Multiple Airlines
Sat 18/708:35
SYD
-
LIS
2 stops47h 45m
Multiple Airlines
Deal found 25/6$2,048
Fri 3/722:00
OPO
-
SYD
2 stops53h 35m
Multiple Airlines
Sun 19/711:00
SYD
-
OPO
2 stops43h 20m
Multiple Airlines
Deal found 28/6$2,050
Thu 12/1110:55
LIS
-
SYD
2 stops35h 40m
Air Canada
Mon 16/1111:20
SYD
-
LIS
2 stops33h 00m
Air Canada
Deal found 24/6$2,059
Tue 15/916:05
LIS
-
SYD
2 stops42h 00m
Multiple Airlines
Tue 22/922:15
SYD
-
LIS
2 stops34h 05m
Multiple Airlines
Deal found 25/6$2,067
Fri 20/1112:40
OPO
-
SYD
2 stops34h 20m
Multiple Airlines
Fri 5/216:35
SYD
-
OPO
2 stops30h 20m
Multiple Airlines
Deal found 24/6$2,096

Find flight deals from Portugal to Sydney

Keep the following information in mind while searching for Portugal to Sydney flight deals. Data was last updated 29 June 2026.

Round-trip from

$1,486

One-way from

$777

Popular in

April

Cheapest in

September

Average price

$2,504
11/8-18/8
  • 11/8-18/8
  • 4 total stops
  • 62h 05m total
  • Portugal to Sydney
Search Deals
13/9
  • 13/9
  • 3 total stops
  • 51h 55m total
  • Portugal to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($230 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($80 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portugal to Sydney 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 29 June 2026.
Use the filters below to find and compare flights from Portugal to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 21/9

15:15-19:20

2 stops43h 05m

Sydney Kingsford Smith

Tue 6/10

22:05-15:40

2 stops27h 35m

$2,027

PortoSydney

OPO - SYD

OPOSYD

Porto

Fri 20/11

12:40-10:00

2 stops34h 20m

Sydney Kingsford Smith

Fri 5/2

16:35-11:55

2 stops30h 20m

$2,096

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 4/11

16:40-06:50

2 stops27h 10m

Sydney Kingsford Smith

Sun 8/11

15:50-16:00

2 stops35h 10m

$2,314

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sun 1/11

16:10-10:50

3 stops31h 40m

Sydney Kingsford Smith

Thu 26/11

11:40-15:25

2 stops38h 45m

$2,328

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sat 31/10

12:20-09:20

2 stops34h 00m

Sydney Kingsford Smith

Sat 20/2

09:20-10:20

2 stops36h 00m

$2,406

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 24/8

16:05-06:10

2 stops29h 05m

Sydney Kingsford Smith

Sun 6/9

07:35-09:40

3 stops35h 05m

$2,456

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 28/9

16:50-09:35

2 stops31h 45m

Sydney Kingsford Smith

Wed 28/10

07:15-15:25

3 stops43h 10m

$2,464

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sat 31/10

06:00-06:15

3 stops37h 15m

Sydney Kingsford Smith

Sat 28/11

21:30-15:10

2 stops28h 40m

$2,543

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 17/8

16:20-06:10

2 stops28h 50m

Sydney Kingsford Smith

Mon 24/8

20:50-23:50

2 stops36h 00m

$2,550

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sat 31/10

06:00-06:15

3 stops37h 15m

Sydney Kingsford Smith

Sat 20/2

07:15-10:35

3 stops38h 20m

$2,579

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 30 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Portugal to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Portugal 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 Portugal to Sydney

What is the cheapest month to book a flight from Portugal to Sydney?

Currently, March is the cheapest month in which you can book a flight from Portugal to Sydney (average of $893). Flying from Portugal to Sydney in January is currently the most expensive (average of $2,041). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Portugal to Sydney?

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portugal to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 29 June 2026.
Read reviews from past customers who have flown with Air France and Etihad Airways from Portugal to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,615 reviews
Check prices

Food

7.0

Boarding

7.5

Overall

7.5

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Rakesh,Mar 2026

SLC - AMS

The flight was on Delta. Delta was super efficient.. Overall good flight.
Air France
7.5
Good
1,615 reviews
Air France
7.5
Good
1,615 reviews
Check prices

Food

7.0

Boarding

7.5

Overall

7.5

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Rakesh,Mar 2026

SLC - AMS

The flight was on Delta. Delta was super efficient.. Overall good flight.
Etihad Airways
7.3
Good
1,469 reviews
Air France
7.5
Good
1,615 reviews
Check prices

Food

7.0

Boarding

7.5

Overall

7.5

Comfort

7.4

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Rakesh,Mar 2026

SLC - AMS

The flight was on Delta. Delta was super efficient.. Overall good flight.

Related info for your journey

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

  • What airport do you fly into for flights to Sydney from Portugal?

    For a flight from Portugal to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city.

  • How long is the flight from Portugal to Sydney?

    Departing from Portugal to Sydney will take you 27h 10m. There are 18057 km between Portugal and Sydney. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $971 on Etihad Airways. Other airlines that offer cheap prices include Qatar Airways from $1,194 and Turkish Airlines from $1,555 one-way.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Portugal to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Portugal to Sydney (average of $893). Flying from Portugal to Sydney in January is currently the most expensive (average of $2,041). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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.

Top 2 airlines flying from Portugal to Sydney

Discover the top 2 airlines that operate flights from Portugal to Sydney. 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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,997Average$2,419FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest$2,220Average$2,300FlexibilityNo cancel feeOn-time77%
Search Air France 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 Portugal to Sydney?

Cheapflights helps you search for flights from Portugal to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Portugal to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Portugal to Sydney with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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