$826 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 16/6. 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, 21 May - Sat, 6 Jun
Etihad Airways Logo
08:55 - 16:50
LIS
-
SYD
22h 55m
1 stop
Etihad Airways Logo
15:40 - 07:30
SYD
-
LIS
24h 50m
1 stop
$1,729Etihad Airways
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
05:05 - 19:25
OPO
-
SYD
53h 20m
3 stops
Multiple Airlines Logo
14:10 - 08:10
SYD
-
OPO
51h 00m
3 stops
$1,991Multiple Airlines
Tue, 26 May - Tue, 2 Jun
Multiple Airlines Logo
07:35 - 14:50
OPO
-
SYD
46h 15m
2 stops
Multiple Airlines Logo
19:40 - 19:20
SYD
-
OPO
32h 40m
2 stops
$2,008Multiple Airlines
Tue, 16 Jun - Tue, 1 Sep
Air Canada Logo
08:35 - 07:20
LIS
-
SYD
37h 45m
3 stops
Air Canada Logo
09:20 - 09:20
SYD
-
LIS
33h 00m
3 stops
$2,044Air Canada
Tue, 16 Jun - Tue, 1 Sep
Air Canada Logo
08:35 - 07:20
LIS
-
SYD
37h 45m
3 stops
Air Canada Logo
09:20 - 11:05
SYD
-
LIS
34h 45m
2 stops
$2,047Air Canada
Sun, 17 May - Tue, 2 Jun
Etihad Airways Logo
08:50 - 16:50
LIS
-
SYD
23h 00m
1 stop
Etihad Airways Logo
15:40 - 07:30
SYD
-
LIS
24h 50m
1 stop
$2,128Etihad Airways
Fri, 12 Jun - Sun, 5 Jul
Turkish Airlines Logo
11:00 - 19:10
LIS
-
SYD
47h 10m
2 stops
Turkish Airlines Logo
21:05 - 15:35
SYD
-
LIS
27h 30m
2 stops
$2,152Turkish Airlines
Mon, 25 May - Sun, 7 Jun
Turkish Airlines Logo
06:30 - 19:10
OPO
-
SYD
27h 40m
2 stops
Turkish Airlines Logo
11:05 - 09:40
SYD
-
OPO
31h 35m
2 stops
$2,167Turkish Airlines
Wed, 21 Oct - Thu, 29 Oct
Iberia Logo
12:25 - 18:10
OPO
-
SYD
43h 45m
2 stops
Iberia Logo
21:40 - 20:00
SYD
-
OPO
33h 20m
2 stops
$2,188Iberia
Wed, 21 Oct - Tue, 3 Nov
Iberia Logo
12:25 - 18:10
OPO
-
SYD
43h 45m
2 stops
Iberia Logo
21:40 - 16:00
SYD
-
OPO
53h 20m
2 stops
$2,191Iberia
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 flight to Sydney?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Sydney was found on the route from Lisbon, at $1,729 return. The most popular connection is from Melbourne to Sydney and KAYAK users have found return deals for as low as $165 in the last 3 days.

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 September, where tickets cost $2,092 on average for return flights. On the other hand, the most expensive months are April and December, where the average cost of tickets from Portugal is $3,021 and $2,646 respectively. For one-way flights, the best month to travel is September with an average price of $2,092.

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$826
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (10% more expensive on average)
Flight from Lisbon to Sydney

FAQs - booking Sydney flights

  • What is the cheapest flight to Sydney?

    In the last 3 days, the cheapest flight deal to Sydney was found on the route from Lisbon, at $1,729 return. The most popular connection is from Melbourne to Sydney and KAYAK users have found return deals for as low as $165 in the last 3 days.

  • 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 8,173 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 1582 reviews
7.0Entertainment
8.1Crew
7.0Food
7.4Comfort
7.5Boarding
Airline reviews

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

2.0 MediocreLorie, Apr 2026
CDG - LAX
Read more Air France reviews

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)

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.

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.

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

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

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

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.

Kayak and Aran grant issuing business class tickets without lounge access and sometimes 1 or 2 connections in economy class. It’s very disappointing to find out that after buying the ticket. Never buy tickets on kayak and Aran grant again

Travelling to a place near Sydney?

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

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney