$858 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 17/9. 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

Tue, 1 Sep - Wed, 30 Sep
Multiple Airlines Logo
20:20 - 12:35
LIS
-
SYD
55h 15m
2 stops
Multiple Airlines Logo
21:05 - 15:35
SYD
-
LIS
27h 30m
2 stops
$1,784Multiple Airlines
Sun, 28 Jun - Thu, 2 Jul
Multiple Airlines Logo
08:55 - 16:50
LIS
-
SYD
22h 55m
1 stop
Multiple Airlines Logo
09:50 - 09:55
SYD
-
LIS
57h 05m
2 stops
$1,833Multiple Airlines
Sun, 28 Jun - Thu, 2 Jul
Multiple Airlines Logo
08:55 - 16:50
LIS
-
SYD
22h 55m
1 stop
Multiple Airlines Logo
09:50 - 23:20
SYD
-
LIS
46h 30m
2 stops
$1,846Multiple Airlines
Wed, 1 Jul - Wed, 29 Jul
Multiple Airlines Logo
08:55 - 16:50
LIS
-
SYD
22h 55m
1 stop
Multiple Airlines Logo
07:25 - 15:35
SYD
-
LIS
41h 10m
3 stops
$1,883Multiple Airlines
Fri, 16 Oct - Fri, 30 Oct
Multiple Airlines Logo
20:10 - 20:05
LIS
-
SYD
37h 55m
2 stops
Multiple Airlines Logo
20:45 - 16:30
SYD
-
LIS
30h 45m
2 stops
$1,893Multiple Airlines
Mon, 2 Nov - Mon, 16 Nov
Air Canada Logo
18:40 - 09:35
LIS
-
SYD
51h 55m
3 stops
Air Canada Logo
11:20 - 09:50
SYD
-
LIS
57h 30m
3 stops
$1,972Air Canada
Mon, 2 Nov - Mon, 16 Nov
Air Canada Logo
18:40 - 09:35
LIS
-
SYD
51h 55m
3 stops
Air Canada Logo
11:20 - 11:00
SYD
-
LIS
34h 40m
2 stops
$1,977Air Canada
Sun, 8 Nov - Thu, 12 Nov
Qatar Airways Logo
08:20 - 06:50
OPO
-
SYD
35h 30m
2 stops
Qatar Airways Logo
15:50 - 11:45
SYD
-
OPO
30h 55m
2 stops
$2,259Qatar Airways
Sun, 26 Jul - Sun, 2 Aug
Etihad Airways Logo
20:10 - 06:10
OPO
-
SYD
49h 00m
2 stops
Etihad Airways Logo
15:40 - 19:20
SYD
-
OPO
36h 40m
2 stops
$2,586Etihad Airways
Sat, 27 Jun - Mon, 13 Jul
Turkish Airlines Logo
16:40 - 09:45
OPO
-
SYD
32h 05m
2 stops
Turkish Airlines Logo
11:15 - 09:40
SYD
-
OPO
31h 25m
2 stops
$2,591Turkish 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 round-trip 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 March, where tickets cost $873 on average for return flights. On the other hand, the most expensive months are July and January, where the average cost of tickets from Portugal is $2,052 and $1,996 respectively. For one-way flights, the best month to travel is June with an average price of $902.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$858
Best time to beat the crowds but there is an average 1% increase in price.
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.

  • 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.

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

    Each week there are around 8,227 direct flights from within Portugal to Sydney. The most common day for departures is Friday, with 17% 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
Air FranceOverall score based on 1606 reviews
8.2Crew
7.5Boarding
7.4Comfort
7.0Food
7.0Entertainment
Airline reviews

I love Air France. This was another great experience despite a slight delay in the departure. The time was made up on flight. I would take AirFrance again when traveling to the far East. Merci beaucoup.

10.0 ExcellentAlvaro, June 2026
MAD - CDG
Read more Air France reviews

I love Air France. This was another great experience despite a slight delay in the departure. The time was made up on flight. I would take AirFrance again when traveling to the far East. Merci beaucoup.

Everything is good except the seats are tightened no rooms for the legs,

The flight crew was exceptionally friendly and helpful. Also the seats were comfortable and roomier than many other airlines.

The plane's pilots, including the captain himself, thanked me for the flight. I know it's just marketing, but it was really nice to see these people. It's a great idea. Airplane food is never "good," but the entire crew and flight organization were top-notch. I really liked Delta, and I think I've traveled all over the world, and that was something new for me. Maybe even the old planes, the B767, but next time I have a choice, Delta will be my first choice. Thank you, a satisfied passenger :)

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

They lost my bag and I still have not received it

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

Food quality and varites were very minimum. Surprised to have no desserts. Business class tickets should have lounge access and seats selection. They should be allowed to board while people with wheel chair, secial assistance and family with childrem.

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

Good flight. There were a few issues with the flat bed. It was some technical issues. Otherwise everything was good

It was mediocre. Honestly, the flight was late but that didn’t bother me as I had plenty of time. The only thing that bothered me is that the crew never asked to make the beds for us in business class. Maybe the crew was exhausted and that just didn’t occur to them.

Travelling to a place near Sydney?

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

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney