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Cheap flights from Portugal to Sydney from $858

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SYD
18 Jul — 25 Jul1
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 June 2026.

Tue 22/910:00
LIS
-
SYD
2 stops48h 05m
Multiple Airlines
Tue 6/1021:35
SYD
-
LIS
2 stops53h 00m
Multiple Airlines
Deal found 16/6$1,710
Sun 21/608:55
LIS
-
SYD
1 stop22h 55m
Multiple Airlines
Mon 6/709:50
SYD
-
LIS
2 stops33h 05m
Multiple Airlines
Deal found 15/6$1,761
Tue 1/920:20
LIS
-
SYD
2 stops55h 15m
Multiple Airlines
Wed 30/921:05
SYD
-
LIS
2 stops27h 30m
Multiple Airlines
Deal found 14/6$1,783
Sun 21/608:55
LIS
-
SYD
1 stop22h 55m
Multiple Airlines
Sat 4/709:50
SYD
-
LIS
2 stops46h 30m
Multiple Airlines
Deal found 14/6$1,796
Sun 28/608:55
LIS
-
SYD
1 stop36h 15m
Multiple Airlines
Sat 11/714:45
SYD
-
LIS
2 stops41h 35m
Multiple Airlines
Deal found 15/6$1,810
Sun 21/608:55
LIS
-
SYD
1 stop22h 55m
Multiple Airlines
Tue 7/722:15
SYD
-
LIS
2 stops34h 05m
Multiple Airlines
Deal found 14/6$1,820
Fri 16/1020:10
LIS
-
SYD
2 stops37h 55m
Multiple Airlines
Fri 30/1020:45
SYD
-
LIS
2 stops30h 45m
Multiple Airlines
Deal found 14/6$1,893
Mon 22/616:05
OPO
-
SYD
2 stops29h 05m
Multiple Airlines
Mon 6/709:50
SYD
-
OPO
2 stops32h 50m
Multiple Airlines
Deal found 13/6$2,000
Sat 20/620:10
OPO
-
SYD
2 stops49h 00m
Multiple Airlines
Mon 6/708:35
SYD
-
OPO
2 stops58h 10m
Multiple Airlines
Deal found 16/6$2,016
Fri 11/906:35
OPO
-
SYD
3 stops40h 45m
Multiple Airlines
Sun 27/922:15
SYD
-
OPO
2 stops44h 25m
Multiple Airlines
Deal found 17/6$2,088
Sat 12/906:55
OPO
-
SYD
3 stops42h 15m
Multiple Airlines
Mon 28/907:35
SYD
-
OPO
3 stops41h 15m
Multiple Airlines
Deal found 17/6$2,156
Tue 1/916:05
OPO
-
SYD
2 stops29h 05m
Multiple Airlines
Tue 29/914:50
SYD
-
OPO
2 stops29h 00m
Multiple Airlines
Deal found 13/6$2,166

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 June 2026.

Round-trip from

$1,710

One-way from

$858

Popular in

April

Cheapest in

February

Average price

$2,258
22/9-6/10
  • 22/9-6/10
  • 4 total stops
  • 101h 05m total
  • Portugal to Sydney
Search Deals
17/9
  • 17/9
  • 3 total stops
  • 53h 25m total
  • Portugal to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($223 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($77 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 18 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

Tue 1/9

16:05-06:10

2 stops29h 05m

Sydney Kingsford Smith

Tue 29/9

14:50-10:50

2 stops29h 00m

$2,166

PortoSydney

OPO - SYD

OPOSYD

Porto

Sun 8/11

08:20-06:50

2 stops35h 30m

Sydney Kingsford Smith

Thu 12/11

15:50-11:45

2 stops30h 55m

$2,258

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Thu 12/11

18:40-09:35

3 stops51h 55m

Sydney Kingsford Smith

Mon 16/11

11:20-09:50

3 stops57h 30m

$2,305

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Thu 12/11

11:55-07:00

2 stops56h 05m

Sydney Kingsford Smith

Mon 16/11

11:20-08:10

2 stops31h 50m

$2,399

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

$2,452

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Thu 12/11

08:15-17:55

1 stop22h 40m

Sydney Kingsford Smith

Mon 16/11

16:35-06:55

1 stop25h 20m

$2,515

PortoSydney

OPO - SYD

OPOSYD

Porto

Sat 1/8

11:35-16:50

2 stops44h 15m

Sydney Kingsford Smith

Sat 8/8

20:50-06:50

2 stops43h 00m

$2,532

PortoSydney

OPO - SYD

OPOSYD

Porto

Sat 1/8

11:35-16:50

2 stops44h 15m

Sydney Kingsford Smith

Sat 8/8

07:35-23:30

3 stops48h 55m

$2,553

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Wed 1/7

18:55-06:10

1 stop26h 15m

Sydney Kingsford Smith

Fri 31/7

14:50-20:25

1 stop38h 35m

$2,586

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 13/7

05:05-06:05

3 stops40h 00m

Sydney Kingsford Smith

Mon 20/7

20:45-00:40

3 stops36h 55m

$2,597

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 25 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 $873). Flying from Portugal to Sydney in July is currently the most expensive (average of $2,051). 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 18 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
7.4
Good
1,608 reviews
Check prices

Overall

7.4

Boarding

7.5

Food

7.0

Entertainment

7.0

Crew

8.2

Comfort

7.4

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
7.4
Good
1,608 reviews
Air France
7.4
Good
1,608 reviews
Check prices

Overall

7.4

Boarding

7.5

Food

7.0

Entertainment

7.0

Crew

8.2

Comfort

7.4

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
1,453 reviews
Air France
7.4
Good
1,608 reviews
Check prices

Overall

7.4

Boarding

7.5

Food

7.0

Entertainment

7.0

Crew

8.2

Comfort

7.4

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 35h 30m. 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 $989 on Etihad Airways. Other airlines that offer cheap prices include Qatar Airways from $1,167 and Turkish Airlines from $1,521 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 $873). Flying from Portugal to Sydney in July is currently the most expensive (average of $2,051). 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
Cronulla
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,953Average$2,366FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest$2,171Average$2,250FlexibilityNo 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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