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Cheap flights from Portugal to Sydney from $703

LIS — SYD
29 Nov — 6 Dec1
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

Tue 10/1120:15 -
2 stops54h 20m
Sat 14/1121:30 -
1 stop44h 25m
Deal found 25/10$1,537
Fri 25/1207:10 -
2 stops37h 55m
Wed 20/110:30 -
2 stops35h 15m
Deal found 29/10$1,792
Thu 26/1121:55 -
2 stops34h 25m
Sat 12/1221:10 -
2 stops46h 00m
Deal found 30/10$1,838
Mon 21/1221:55 -
2 stops34h 25m
Sun 17/122:10 -
2 stops45h 00m
Deal found 29/10$1,843
Sun 1/1123:30 -
2 stops49h 40m
Tue 17/1121:30 -
1 stop44h 25m
Deal found 27/10$1,870
Thu 5/1106:00 -
3 stops38h 10m
Thu 19/1121:35 -
2 stops28h 35m
Deal found 28/10$1,914
Mon 7/1208:45 -
2 stops35h 05m
Mon 21/1221:10 -
2 stops45h 30m
Deal found 29/10$1,988
Sat 5/1221:55 -
2 stops45h 55m
Mon 21/1221:10 -
2 stops45h 30m
Deal found 28/10$2,002
Tue 1/1221:55 -
2 stops45h 55m
Sat 12/1221:10 -
2 stops46h 00m
Deal found 30/10$2,063
Sat 12/1221:55 -
2 stops34h 25m
Mon 28/1221:10 -
2 stops33h 10m
Deal found 30/10$2,088
Thu 19/1119:05 -
2 stops35h 40m
Mon 23/1121:30 -
2 stops47h 50m
Deal found 26/10$2,118
Thu 10/1211:35 -
2 stops33h 30m
Fri 25/1221:30 -
2 stops32h 15m
Deal found 26/10$2,120

Find flight deals from Portugal to Sydney

Round-trip from

$1,537

One-way from

$703

Popular in

April

Cheapest in

February

Average price

$2,368
Etihad Airways
  • Etihad Airways
  • 10/11-14/11
  • 3 total stops
  • 98h 45m total
  • Portugal to Sydney
Search Deals
19/11-31/12
  • 19/11-31/12
  • 2 total stops
  • 50h 30m total
  • Portugal to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($167 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
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

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Mon 1/3

17:15-18:50

2 stops38h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$773

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Sun 28/3

23:05-20:20

2 stops35h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$804

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Wed 9/12

19:35-18:50

3 stops36h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$820

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Thu 26/11

10:35-10:00

3 stops36h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$912

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Thu 31/12

19:10-15:50

2 stops33h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$940

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Fri 20/11

16:10-12:10

2 stops33h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$985

PortoSydney

OPO Porto - SYD Sydney Kingsford Smith

OPOSYD

Porto

Tue 29/12

18:00-13:40

3 stops56h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,102

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Fri 25/12

06:00-06:30

2 stops37h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,340

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Wed 9/12

08:15-06:30

1 stop35h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,389
Fastest return journey

LisbonSydney

LIS Lisbon Humberto Delgado - SYD Sydney Kingsford Smith

LISSYD

Lisbon Humberto Delgado

Thu 19/11

08:15-17:45

1 stop22h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,475

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 51 resultsSorted by cheapest first
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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

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, February is the cheapest month in which you can book a flight from Portugal to Sydney (average of $2,218). Flying from Portugal to Sydney in April is currently the most expensive (average of $3,144). 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 15 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

Read reviews from past customers who have flown with 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.
Etihad Airways
7.3
Good
1,549 reviews
Check prices

Overall

7.3

Crew

7.8

Comfort

7.3

Boarding

7.6

Food

7.1

Entertainment

7.2

Reviews

1 / 20
2.0
Mediocre

Humera,Oct 2026

KHI - AUH

Not sure why, but somehow, my daughter’s ticket was bought such that it did not allow any checked baggage’s. This is quite ironic because this is an international flight is not going from Sister city to another Sister city it is going from one continent to a very different continent. How is it assumed that a person will not have any luggage.? I never even knew that international flights could have such a policy where there are tickets that would not have checked luggage included seriously?! At the counter when we learned this the amount of money they were asking for to check the bags was $260 each bag. For two bags that’s slightly more than what I paid for the return ticket. They could have charged $100 or $125 for each bag just like when the bag is over weight. This is extremely ridiculous., very disappointed, especially when the crew at the airport was not even cooperative in coming up with some solution. My daughter had told myself flight and is now flying back via Qatar Airways. Extremely disappointed with Etihad airways.
Etihad Airways
7.3
Good
1,549 reviews
Etihad Airways
7.3
Good
1,549 reviews
Check prices

Overall

7.3

Crew

7.8

Comfort

7.3

Boarding

7.6

Food

7.1

Entertainment

7.2

Reviews

1 / 20
2.0
Mediocre

Humera,Oct 2026

KHI - AUH

Not sure why, but somehow, my daughter’s ticket was bought such that it did not allow any checked baggage’s. This is quite ironic because this is an international flight is not going from Sister city to another Sister city it is going from one continent to a very different continent. How is it assumed that a person will not have any luggage.? I never even knew that international flights could have such a policy where there are tickets that would not have checked luggage included seriously?! At the counter when we learned this the amount of money they were asking for to check the bags was $260 each bag. For two bags that’s slightly more than what I paid for the return ticket. They could have charged $100 or $125 for each bag just like when the bag is over weight. This is extremely ridiculous., very disappointed, especially when the crew at the airport was not even cooperative in coming up with some solution. My daughter had told myself flight and is now flying back via Qatar Airways. Extremely disappointed with Etihad airways.

Related info for your journey

  • 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 33h 15m. There are 18163 km between Portugal and Sydney. This flight may include one or multiple stops.

  • 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, February is the cheapest month in which you can book a flight from Portugal to Sydney (average of $2,218). Flying from Portugal to Sydney in April is currently the most expensive (average of $3,144). 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
Cronulla
Lithgow
Terrigal
Katoomba
Randwick
Leura
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Portugal to Sydney

AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$2,138Average$2,586FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

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

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