$665 Find Cheap Flights from Portugal to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 3/12. 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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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

Thu, 13 Nov - Mon, 17 Nov
Multiple Airlines Logo
21:40 - 14:40LIS-SYD
54h 00m2 stops
Multiple Airlines Logo
21:30 - 06:40SYD-LIS
44h 10m1 stop
$1,389Multiple Airlines
Find Deal
Tue, 3 Mar - Sun, 15 Mar
Multiple Airlines Logo
07:00 - 10:00LIS-SYD
40h 00m2 stops
Multiple Airlines Logo
21:30 - 19:15SYD-LIS
32h 45m2 stops
$1,477Multiple Airlines
Find Deal
Mon, 1 Dec - Tue, 16 Dec
Multiple Airlines Logo
20:00 - 15:30LIS-SYD
56h 30m2 stops
Multiple Airlines Logo
20:40 - 17:45SYD-LIS
32h 05m2 stops
$1,678Multiple Airlines
Find Deal
Mon, 16 Feb - Mon, 2 Mar
British Airways Logo
12:55 - 06:55LIS-SYD
31h 00m2 stops
British Airways Logo
16:20 - 18:55SYD-LIS
37h 35m2 stops
$1,977British Airways
Find Deal
Sun, 8 Feb - Sun, 8 Mar
British Airways Logo
12:55 - 06:55LIS-SYD
31h 00m2 stops
British Airways Logo
16:20 - 14:50SYD-LIS
33h 30m2 stops
$1,995British Airways
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Tue, 25 Nov - Tue, 5 May
Finnair Logo
16:10 - 08:25LIS-SYD
29h 15m2 stops
Finnair Logo
10:20 - 15:50SYD-LIS
38h 30m2 stops
$2,184Finnair
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Thu, 12 Mar - Mon, 16 Mar
United Airlines Logo
12:35 - 09:05OPO-SYD
33h 30m2 stops
United Airlines Logo
11:50 - 09:30SYD-OPO
32h 40m2 stops
$2,232United Airlines
Find Deal
Thu, 12 Mar - Mon, 16 Mar
United Airlines Logo
12:35 - 09:05OPO-SYD
33h 30m2 stops
United Airlines Logo
11:50 - 09:30SYD-OPO
32h 40m2 stops
$2,238United Airlines
Find Deal
Wed, 26 Nov - Fri, 5 Dec
Turkish Airlines Logo
10:55 - 19:20OPO-SYD
45h 25m2 stops
Turkish Airlines Logo
21:15 - 09:55SYD-OPO
47h 40m2 stops
$2,526Turkish Airlines
Find Deal
Wed, 26 Nov - Fri, 5 Dec
Turkish Airlines Logo
10:55 - 19:20OPO-SYD
45h 25m2 stops
Turkish Airlines Logo
21:15 - 09:55SYD-OPO
47h 40m2 stops
$2,551Turkish Airlines
Find Deal

Everything you should know

When to travel
May
Cheapest • 14% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$1,389
Typical prices: $2,085-$2,631
Multiple Airlines
Thu 13/11Mon 17/11
LIS - SYD • 2 stops
Cheapest one-way flight
$665
Typical prices: $1,585-$2,040
Multiple Airlines
Wed 3/12
LIS - SYD • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
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 $2,124 on average for one-way flights. On the other hand, the most expensive months are October and December, where the average cost of tickets from Portugal is $2,997 and $2,764 respectively. For return trips, the best month to travel is May with an average price of $2,124.

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 seasonSeptember
Cheapest flight$665
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (10% 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 $2,154. On the other hand, the most expensive day to fly is Monday, where prices are $3,027 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 $2,557 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 $3,483.

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

    Each week there are around 2,136 direct flights from within Portugal to Sydney. The most common day for departures is Friday, with 16% 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 3 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 1284 reviews
7.3Comfort
7.2Food
7.3Entertainment
7.6Boarding
7.8Crew
Airline reviews

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

6.0 GoodViji, Oct 2025CMB - AUH
Read more Etihad Airways reviews

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 check-in has been the very best so far I didn't get to use my priority access which made me feel like a paid a higher price with no benefit for that I loved the food Very tasty and hot The staff friendliness, empathy could be better as it was not linear amongst the whole crew Otherwise, no complaints. I'd still fly again via Etihad Great prices despite the long 6h of waiting time

The food could be better. Toilets were smelly all along

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Horrible. After paying for my seats, I was cramped, had no overhead bin space, freezing as the flight had no temperature controls, the food was awful and served cold, when asked for snacks was told to wait and then never received any. I booked this flight as a partner through American Airlines but will avoid in the future.

Flight was delayed due to slow boarding process by etihad. Update food options and movies as well.

Extremely bad food, they never gave our bags in time, the online check-in did not let us check in because we had Indian OCI not sure why we were given the option to check in then, because we couldn’t check in online we had to go in person and we were not able to change our seats and sit with our family

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.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

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.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

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.

Wonderful! Everyone very helpful and kind. Returning flight was cancelled but rebooking was easy.

Flight was on time, there were no issues. It was also direct to SFO. For an international flight, I call that a win.

On both sides of my itinerary, the planes were old, the seats did not work, the seats were filthy, and the crew were unfriendly

-The seats could be roomier -The entertainment in English could be more current! The moves were very old!!! -They served too many carbs! What happened to fruit and yogurt!!!!

A lady with a smelly dog sat next to me

It was bad experience . I was about to lose my flight . The airline announced the gate very late , an hour before the flight , and you need to rush to find the gate in a big airport . The flight is a long flight and the food is poor . I difintelely not taking this airplane again

It was Ok for Business class considering we paid almost $10K for two seats. Disappointing part was the $640 (RT) to reserve the seats prior to departure unlike other airlines that is complementary when buying business class seats. Would I use ITA to go to Europe on my next trip -NO.

They gave us sandwiches as a meal twice. Snacks mid flight with cookies and a tuna panini. Then just the same tuna panini for dinner. That was it.

Top notch re cleanliness, comfort, operational. Attendants attentive, cheerful, courteous and professional. An unusually high-grade experience all around.

Everything. Boarding, service, food, seats, crew I'd increase the air pressure to avoid dry sinuses and after effects

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Katoomba
Penrith
Terrigal
Leura
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

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