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Cheap flights from Portugal to Sydney from $709

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — SYD
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Portugal to Sydney

Keep the following information in mind while searching for Portugal to Sydney flight deals. Data was last updated 13 June 2025.

Round-trip from

$1,644

One-way from

$709

Popular in

October

Cheapest in

March

Average price

$2,507
British Airways
  • British Airways
  • 28/11-6/12
  • 4 total stops
  • 67h 40m total
  • Portugal to Sydney
Search Deals
18/9
  • 18/9
  • 2 total stops
  • 55h 35m total
  • Portugal to Sydney
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($18 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 2025
Search Deals

Find flight deals from Portugal to Sydney

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 13 June 2025.

Fri 28/1107:05LIS - SYD
2 stops36h 50mBritish Airways
Sat 6/1216:20SYD - LIS
2 stops30h 50mBritish Airways
Deal found 11/6$1,644
Wed 10/1208:25LIS - SYD
2 stops47h 40mMultiple Airlines
Mon 23/221:45SYD - LIS
2 stops44h 15mMultiple Airlines
Deal found 11/6$1,813
Sun 27/705:05OPO - SYD
3 stops30h 05mMultiple Airlines
Sun 3/814:05SYD - OPO
2 stops33h 05mMultiple Airlines
Deal found 12/6$1,953
Mon 8/1215:25LIS - SYD
2 stops28h 50mSWISS
Sun 22/219:10SYD - LIS
2 stops55h 20mSWISS
Deal found 11/6$2,154
Tue 9/1208:20LIS - SYD
2 stops35h 55mLufthansa
Sun 22/219:10SYD - LIS
2 stops51h 30mLufthansa
Deal found 11/6$2,194
Wed 10/1206:10LIS - SYD
3 stops40h 25mAir Canada
Mon 23/211:20SYD - LIS
2 stops33h 00mAir Canada
Deal found 11/6$2,269
Sun 22/608:55LIS - SYD
1 stop23h 00mEtihad Airways
Mon 7/721:30SYD - LIS
1 stop42h 50mEtihad Airways
Deal found 11/6$2,278
Mon 23/611:45OPO - SYD
2 stops32h 35mBritish Airways
Mon 7/714:40SYD - OPO
2 stops38h 10mBritish Airways
Deal found 12/6$2,373
Sun 7/1221:40LIS - SYD
1 stop46h 15mKorean Air
Thu 26/209:10SYD - LIS
1 stop45h 25mKorean Air
Deal found 11/6$2,518
Sun 21/1211:55LIS - SYD
2 stops58h 10mUnited Airlines
Fri 6/314:00SYD - LIS
2 stops29h 10mUnited Airlines
Deal found 11/6$2,542
Sun 22/605:40LIS - SYD
2 stops38h 30mAir France
Mon 7/714:50SYD - LIS
2 stops27h 00mAir France
Deal found 11/6$2,594
Fri 5/1216:10OPO - SYD
2 stops28h 30mTurkish Airlines
Mon 22/1221:45SYD - OPO
2 stops47h 10mTurkish Airlines
Deal found 11/6$2,622

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 13 June 2025.
Use the filters below to find and compare flights from Portugal to Sydney that are best for you.

Fly from

Portugal

Fly to

Sydney

Route

Depart

Return

Price

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Thu 18/9

16:30-05:20

2 stops27h 50m

Sydney Kingsford Smith

Wed 8/10

15:40-10:05

2 stops28h 25m

$1,640

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Thu 18/9

07:15-09:45

3 stops41h 30m

Sydney Kingsford Smith

Wed 8/10

16:00-14:35

2 stops32h 35m

$1,943

PortoSydney

OPO - SYD

OPOSYD

Porto

Sun 27/7

05:05-20:10

3 stops30h 05m

Sydney Kingsford Smith

Sun 3/8

14:05-14:10

2 stops33h 05m

$1,953

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Mon 8/12

15:25-07:15

2 stops28h 50m

Sydney Kingsford Smith

Sun 22/2

19:10-15:30

2 stops55h 20m

$2,154

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Tue 9/12

08:20-07:15

2 stops35h 55m

Sydney Kingsford Smith

Sun 22/2

19:10-11:40

2 stops51h 30m

$2,194

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Fri 19/9

12:20-06:55

2 stops57h 35m

Sydney Kingsford Smith

Wed 8/10

11:20-10:30

2 stops33h 10m

$2,235

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sun 22/6

08:55-16:55

1 stop23h 00m

Sydney Kingsford Smith

Mon 7/7

21:30-07:20

1 stop42h 50m

$2,278

PortoSydney

OPO - SYD

OPOSYD

Porto

Mon 23/6

11:45-05:20

2 stops32h 35m

Sydney Kingsford Smith

Mon 7/7

14:40-19:50

2 stops38h 10m

$2,373

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sun 7/12

21:40-06:55

1 stop46h 15m

Sydney Kingsford Smith

Thu 26/2

09:10-19:35

1 stop45h 25m

$2,518

LisbonSydney

LIS - SYD

LISSYD

Lisbon Humberto Delgado

Sun 22/6

05:40-05:10

2 stops38h 30m

Sydney Kingsford Smith

Mon 7/7

14:50-08:50

2 stops27h 00m

$2,594

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 31 results
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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
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, May is the cheapest month in which you can book a flight from Portugal to Sydney (average of $129). Flying from Portugal to Sydney in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from PT to SYD?

Find hourly flight availability from Portugal to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portugal to Sydney as you normally would.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 13 June 2025.
Peruse reviews from past customers who have flown with Korean Air, Emirates and KLM from Portugal to Sydney to help guide your decision. 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.
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very Good
1,091 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Emirates
8.1
Very Good
3,265 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
KLM
7.8
Good
1,358 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Thai Airways
7.7
Good
335 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Finnair
7.6
Good
1,290 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

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.

  • 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 $1,366 on Air Canada. Other airlines that offer cheap prices include United Airlines from $1,567 and Etihad Airways from $1,595 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, May is the cheapest month in which you can book a flight from Portugal to Sydney (average of $129). Flying from Portugal to Sydney in October is currently the most expensive (average of $171). 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 Portugal?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portugal to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Portugal to Sydney

Discover the top 5 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$1,697Average$3,033FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
British AirwaysCheapest$1,836Average$2,954FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Etihad AirwaysCheapest$2,013Average$3,088FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
ITA AirwaysCheapest$2,171Average$2,403FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
EmiratesCheapest$3,004Average$3,526FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

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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.

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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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