$1,570 Find Cheap Flights from Portugal to Sydney

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$1,570
Overall average: $2,621
Multiple Airlines
Sat 31/1Mon 16/2
LIS - SYD • 2 stops
Cheapest one-way flight
$2,077
Typical prices: $1,398-$1,859
British Airways
Wed 21/1
LIS - SYD • 2 stops
When to travel
May
Cheapest • 14% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portugal to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portugal to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portugal to Sydney

Sat, 31 Jan - Mon, 16 Feb
Multiple Airlines Logo
22:00 - 14:40
LIS
-
SYD
53h 40m2 stops
Multiple Airlines Logo
16:35 - 06:40
SYD
-
LIS
25h 05m1 stop
$1,570Multiple Airlines
Mon, 2 Feb - Sat, 7 Feb
Multiple Airlines Logo
06:20 - 06:30
LIS
-
SYD
37h 10m2 stops
Multiple Airlines Logo
21:30 - 19:15
SYD
-
LIS
32h 45m2 stops
$1,726Multiple Airlines
Sun, 1 Feb - Sat, 14 Feb
Multiple Airlines Logo
06:30 - 14:40
OPO
-
SYD
45h 10m2 stops
Multiple Airlines Logo
21:15 - 15:30
SYD
-
OPO
29h 15m2 stops
$1,901Multiple Airlines
Mon, 2 Mar - Sat, 21 Mar
Multiple Airlines Logo
14:40 - 13:35
LIS
-
SYD
35h 55m2 stops
Multiple Airlines Logo
21:30 - 19:15
SYD
-
LIS
32h 45m2 stops
$1,906Multiple Airlines
Sat, 31 Jan - Fri, 13 Feb
Multiple Airlines Logo
10:45 - 06:30
LIS
-
SYD
32h 45m3 stops
Multiple Airlines Logo
21:45 - 21:15
SYD
-
LIS
34h 30m2 stops
$1,912Multiple Airlines
Mon, 2 Mar - Sat, 21 Mar
Multiple Airlines Logo
13:35 - 10:00
LIS
-
SYD
33h 25m3 stops
Multiple Airlines Logo
21:30 - 19:15
SYD
-
LIS
32h 45m2 stops
$1,928Multiple Airlines
Fri, 30 Jan - Thu, 12 Feb
Multiple Airlines Logo
16:50 - 14:40
LIS
-
SYD
58h 50m2 stops
Multiple Airlines Logo
21:45 - 06:40
SYD
-
LIS
43h 55m1 stop
$1,937Multiple Airlines
Mon, 2 Feb - Sat, 7 Feb
Multiple Airlines Logo
21:00 - 14:40
LIS
-
SYD
54h 40m2 stops
Multiple Airlines Logo
21:45 - 06:40
SYD
-
LIS
43h 55m1 stop
$1,945Multiple Airlines
Fri, 30 Jan - Thu, 12 Feb
Multiple Airlines Logo
16:50 - 14:40
LIS
-
SYD
58h 50m2 stops
Multiple Airlines Logo
21:45 - 06:40
SYD
-
LIS
43h 55m1 stop
$1,953Multiple Airlines
Sat, 31 Jan - Fri, 13 Feb
Multiple Airlines Logo
09:10 - 06:30
LIS
-
SYD
34h 20m2 stops
Multiple Airlines Logo
21:45 - 06:40
SYD
-
LIS
43h 55m1 stop
$1,959Multiple Airlines
Booking Insights

KAYAK's insights & trends for flights to Sydney

Get data-powered insights and trends into flights to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Sydney is May, where tickets cost $2,088 on average for one-way flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Portugal is $2,833 and $2,640 respectively. For return trips, the best month to travel is May with an average price of $2,088.

How far in advance should I book a flight to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 days before departure.

Good to know

Low seasonApril
Cheapest flight$1,570
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly (9% more expensive on average)
Flight from Lisbon to Sydney

FAQs - booking Sydney flights

  • How far is Sydney Kingsford Smith Airport from central Sydney?

    The distance between Sydney Kingsford Smith Airport and the city centre of Sydney is 7 km.

  • What is the name of Sydney’s airport?

    When flying to Sydney, you'll arrive at Sydney Kingsford Smith Airport (SYD). The airport is also known as Kingsford Smith or Sydney.

  • What is the cheapest day to fly to Sydney?

    Based on KAYAK data, the cheapest day to fly to Sydney is Tuesday where tickets can be as cheap as $2,124. On the other hand, the most expensive day to fly is Monday, where prices are $2,986 on average.

  • How does KAYAK find such low prices on flights to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Sydney?

    The cheapest time of day to fly to Sydney is generally in the evening, when flights cost $2,522 on average. The most expensive time of day to fly to Sydney is generally at night, which is peak travel time and where the average cost of a ticket is $3,436.

  • How many direct flights to Sydney are there each week?

    Each week there are around 2,091 direct flights from within Portugal to Sydney. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Sydney

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Sydney flight deals.

Reviews of the top airlines flying from Portugal to Sydney

 
See real verified KAYAK customer reviews for airlines flying to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Sydney. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Etihad AirwaysOverall score based on 1331 reviews
7.3Entertainment
7.2Food
7.6Boarding
7.3Comfort
7.8Crew
Airline reviews

It’s a business class ticket but they didn’t give a lounge access

2.0 MediocreSunitha, Dec 2025
ATL - AUH
Read more Etihad Airways reviews

It’s a business class ticket but they didn’t give a lounge access

More leg space than other flights, but felt like *maybe* narrower seats?

Poor boarding with incorrect gate numbers. Poor service they told me to throw away brand new water bottles. Poor immigration officers most likely American who hates Muslims. Poor service in the plane with no Urdu language sign posted anywhere. Horrible seats with no comfort at all they think people traveling in economy are animals. Slow food and water services. Slow baggage arrival.

Very delayed and uncomfortable seats. Nothing written in Urdu for Pakistanis. Tons of Pakistanis use the airline they should ensure the airline is accommodating them properly.

Etihad charged me for 2 check in bags. On Kayak search results price was showing 2 check in bags were included. Kayak need to reimburse me for these additional charges and metal agony and distress. Thanks.

In Colombo when I-drop my baggage Sri Lanka air line crew not polite way talk very rude

Same problem place in the middle so small Im 1,85 m so not good 👍

Did not provided with option for class upgrade. Staff at gate was not able and willing to accommodate with class upgrade, eather with plenty empty spots in business and first class.

Old plane, old entertainment system. It wasn't working throughout the entire flight. I was offered to connect to their system via Wifi to watch on my phone. Crew wasn't very helpful except one lady who turned the experience around.

The food could be better. Toilets were smelly all along

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Travelling to a place near Sydney?

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

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney