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Cheap flights from Portugal to Sydney from $742

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SYD
17 Apr — 24 Apr1
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 18 March 2026.

Tue 28/422:00
LIS
-
SYD
2 stops47h 10m
Multiple Airlines
Tue 19/515:40
SYD
-
LIS
2 stops40h 10m
Multiple Airlines
Deal found 16/3$1,803
Thu 9/422:40
LIS
-
SYD
2 stops33h 10m
Multiple Airlines
Wed 22/413:00
SYD
-
LIS
2 stops27h 25m
Multiple Airlines
Deal found 15/3$1,819
Wed 6/506:10
LIS
-
SYD
2 stops45h 25m
Multiple Airlines
Wed 27/521:05
SYD
-
LIS
2 stops27h 30m
Multiple Airlines
Deal found 16/3$1,842
Wed 29/415:00
LIS
-
SYD
2 stops30h 10m
Multiple Airlines
Wed 6/513:00
SYD
-
LIS
2 stops27h 25m
Multiple Airlines
Deal found 15/3$1,866
Mon 27/409:15
OPO
-
SYD
2 stops35h 55m
Multiple Airlines
Mon 4/515:40
SYD
-
OPO
2 stops30h 55m
Multiple Airlines
Deal found 13/3$1,874
Sat 2/512:45
OPO
-
SYD
2 stops32h 25m
Multiple Airlines
Fri 15/520:50
SYD
-
OPO
2 stops35h 10m
Multiple Airlines
Deal found 14/3$1,903
Mon 27/415:15
OPO
-
SYD
2 stops29h 55m
Multiple Airlines
Tue 19/511:00
SYD
-
OPO
2 stops33h 25m
Multiple Airlines
Deal found 16/3$1,924
Thu 30/412:00
OPO
-
SYD
3 stops35h 20m
Multiple Airlines
Thu 7/521:05
SYD
-
OPO
2 stops27h 40m
Multiple Airlines
Deal found 16/3$1,925
Sun 7/607:45
LIS
-
SYD
2 stops46h 05m
Air China
Sun 14/619:40
SYD
-
LIS
2 stops34h 55m
Air China
Deal found 15/3$1,929
Tue 28/420:20
LIS
-
SYD
2 stops35h 30m
Multiple Airlines
Tue 5/515:40
SYD
-
LIS
2 stops27h 35m
Multiple Airlines
Deal found 14/3$1,939
Wed 1/707:00
LIS
-
SYD
2 stops48h 50m
Multiple Airlines
Tue 4/815:40
SYD
-
LIS
2 stops40h 40m
Multiple Airlines
Deal found 14/3$1,946
Wed 3/607:00
LIS
-
SYD
2 stops38h 10m
Multiple Airlines
Tue 23/615:40
SYD
-
LIS
2 stops40h 40m
Multiple Airlines
Deal found 16/3$1,948

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 18 March 2026.

Round-trip from

$1,803

One-way from

$742

Popular in

December

Cheapest in

September

Average price

$2,245
28/4-19/5
  • 28/4-19/5
  • 4 total stops
  • 87h 20m total
  • Portugal to Sydney
Search Deals
27/5
  • 27/5
  • 3 total stops
  • 40h 40m total
  • Portugal to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($153 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($42 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 18 March 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 27/4

09:15-06:10

2 stops35h 55m

Sydney Kingsford Smith

Mon 4/5

15:40-13:35

2 stops30h 55m

$1,874

PortoSydney

OPO - SYD

OPOSYD

Porto

Sat 2/5

21:50-16:50

2 stops34h 00m

Sydney Kingsford Smith

Fri 15/5

20:00-21:25

2 stops34h 25m

$1,986

PortoSydney

OPO - SYD

OPOSYD

Porto

Thu 30/4

07:00-16:50

2 stops24h 50m

Sydney Kingsford Smith

Thu 14/5

11:40-09:40

2 stops31h 00m

$1,987

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Wed 13/5

15:15-06:45

2 stops30h 30m

Sydney Kingsford Smith

Sun 17/5

10:10-23:05

2 stops45h 55m

$2,031

PortoSydney

OPO - SYD

OPOSYD

Porto

Sat 2/5

10:40-06:25

2 stops34h 45m

Sydney Kingsford Smith

Fri 15/5

09:50-09:50

2 stops33h 00m

$2,055

PortoSydney

OPO - SYD

OPOSYD

Porto

Fri 11/9

20:15-09:20

2 stops52h 05m

Sydney Kingsford Smith

Sun 20/9

16:25-09:40

2 stops50h 15m

$2,123

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sun 3/5

07:45-14:50

2 stops46h 05m

Sydney Kingsford Smith

Sun 17/5

19:40-12:25

2 stops49h 45m

$2,206

PortoSydney

OPO - SYD

OPOSYD

Porto

Tue 18/8

20:40-06:05

2 stops48h 25m

Sydney Kingsford Smith

Mon 7/9

14:35-19:50

2 stops38h 15m

$2,257

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 13/4

12:35-06:55

2 stops33h 20m

Sydney Kingsford Smith

Mon 20/4

09:30-09:45

2 stops33h 15m

$2,285

PortoSydney

OPO - SYD

OPOSYD

Porto

Wed 13/5

10:45-19:10

2 stops47h 25m

Sydney Kingsford Smith

Sun 17/5

21:05-09:40

2 stops45h 35m

$2,296

Flights are sorted by cheapest return flights first.

Deals found on 13/3

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, April is the cheapest month in which you can book a flight from Portugal to Sydney (average of $1,193). Flying from Portugal to Sydney in January is currently the most expensive (average of $2,073). 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.

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 18 March 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
7.4
Good
1,546 reviews
Check prices

Food

7.0

Overall

7.4

Comfort

7.3

Boarding

7.4

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class
Air France
7.4
Good
1,546 reviews
Air France
7.4
Good
1,546 reviews
Check prices

Food

7.0

Overall

7.4

Comfort

7.3

Boarding

7.4

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class
Etihad Airways
7.3
Good
1,426 reviews
Air France
7.4
Good
1,546 reviews
Check prices

Food

7.0

Overall

7.4

Comfort

7.3

Boarding

7.4

Crew

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class

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 30h 30m. There are 18163 km between Portugal and Sydney.

  • 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 $859 on Etihad Airways. Other airlines that offer cheap prices include Qatar Airways from $1,111 and Turkish Airlines from $1,513 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, April is the cheapest month in which you can book a flight from Portugal to Sydney (average of $1,193). Flying from Portugal to Sydney in January is currently the most expensive (average of $2,073). 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
Katoomba
Manly
Terrigal
Lithgow
Bondi Beach
Coogee
Cronulla
Leura
Randwick

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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,943Average$2,344FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest$2,160Average$2,238FlexibilityNo 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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