SYD - OPO

$1,222 Find Cheap Flights from Sydney to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Porto departing on 2/6. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Porto.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Porto.
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Cheap Flight Deals from Sydney to Porto (SYD-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Porto 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.

Recent return flight deals from Sydney to Porto

KAYAK's recommended return flight deals from the most popular airlines that fly from Sydney to Porto.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
 Logo
11:25 - 22:15SYD-OPO
43h 50m2 stops
 Logo
06:40 - 09:20OPO-SYD
41h 40m2 stops
$1,598
Find Deal
Fri, 6 Jun - Fri, 13 Jun
 Logo
14:50 - 09:35SYD-OPO
27h 45m2 stops
 Logo
06:00 - 05:55OPO-SYD
38h 55m2 stops
$1,747
Find Deal
Wed, 4 Jun - Wed, 18 Jun
Turkish Airlines Logo
20:55 - 15:50SYD-OPO
27h 55m2 stops
Turkish Airlines Logo
16:50 - 09:45OPO-SYD
31h 55m2 stops
$1,991Turkish Airlines
Find Deal
Wed, 16 Jul - Fri, 26 Sep
Turkish Airlines Logo
20:55 - 15:50SYD-OPO
27h 55m2 stops
Turkish Airlines Logo
16:50 - 09:45OPO-SYD
31h 55m2 stops
$1,997Turkish Airlines
Find Deal
Wed, 16 Jul - Thu, 25 Sep
KLM Logo
13:05 - 15:35SYD-OPO
35h 30m2 stops
KLM Logo
16:20 - 09:45OPO-SYD
32h 25m3 stops
$2,484KLM
Find Deal
Mon, 2 Jun - Mon, 23 Jun
Lufthansa Logo
18:05 - 10:20SYD-OPO
49h 15m2 stops
Lufthansa Logo
16:35 - 19:15OPO-SYD
41h 40m2 stops
$2,612Lufthansa
Find Deal
Fri, 1 Aug - Fri, 15 Aug
SWISS Logo
15:00 - 18:30SYD-OPO
36h 30m2 stops
SWISS Logo
19:20 - 06:10OPO-SYD
49h 50m2 stops
$2,701SWISS
Find Deal
Fri, 6 Jun - Fri, 13 Jun
KLM Logo
11:45 - 21:15SYD-OPO
42h 30m3 stops
KLM Logo
16:20 - 06:45OPO-SYD
29h 25m2 stops
$2,708KLM
Find Deal
Sun, 22 Jun - Thu, 11 Sep
Lufthansa Logo
15:00 - 11:15SYD-OPO
29h 15m2 stops
Lufthansa Logo
12:10 - 05:55OPO-SYD
32h 45m2 stops
$2,909Lufthansa
Find Deal
Sat, 23 Aug - Thu, 18 Sep
SWISS Logo
15:00 - 00:10SYD-OPO
42h 10m2 stops
SWISS Logo
12:15 - 10:25OPO-SYD
37h 10m2 stops
$8,467SWISS
Find Deal
Fri, 15 Aug - Sat, 30 Aug

KAYAK's insights & trends for Sydney to Porto flights

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

What is the cheapest month to fly from Sydney to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Porto, 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 from Sydney to Porto is March, where tickets cost $1,842 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $2,983 and $2,625 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Porto, 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 on the flight from Sydney to Porto, you should book around 10 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

March

High season

July

Cheapest flight

$1,222
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (3% more expensive on average)
Flight from Sydney to Porto

When to book flights from Sydney to Porto

Are your dates flexible? Find out the best times to travel from Sydney to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Porto

  • What is the cheapest flight from Sydney to Porto?

    In the last 3 days, the lowest price for a flight from Sydney to Porto was $782 for a one-way ticket and $1,023 for a return.

  • Which airports will I be using when flying from Sydney to Porto?

    On your way to Porto, you’ll fly out from Sydney Kingsford Smith. You’ll be landing at Porto.

  • Which aircraft models fly most regularly from Sydney to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Porto?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Sydney and Porto, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sydney to Porto, KLM or SWISS?

    The two airlines most popular with KAYAK users for flights from Sydney to Porto are KLM and SWISS. With an average price for the route of $2,712 and an overall rating of 7.8, KLM is the most popular choice. SWISS is also a great choice for the route, with an average price of $2,184 and an overall rating of 7.5.

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

    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 from Sydney to Porto.

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

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

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

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

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

    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 Porto from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Sydney to Porto

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Porto? 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.
7.8
KLMOverall score based on 1333 reviews
7.2Food
7.7Comfort
7.8Boarding
8.4Crew
7.1Entertainment
Airline reviews

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

8.0 ExcellentAnonymous, Apr 2025AMS - MAN
Read more KLM reviews

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

They didn't give us Nothing to eat, come on..... 1 package of chips and a glass of soda won't do anything to the company

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

I slept the whole flight so I can't tell you about the food and there was no entertainment offered. Crew was very nice, seats were comfortable in business, and boarding was easy.

I haven't flown Swiss in a long time. I was disappointed that after paying $14,907 for 3 business class seats, we still had to pay another $200 for a single business class seat. All the window seats used to be single seats. Now it's every other one and if you want a single seat it's extra. Also, The double seats do not have pods or any privacy. We landed in Chicago after a long 10 hour flight and our connecting flight was on United. Because we do not have status on Swiss, we were not allowed to use the United lounge, even with business class seats. My father is on crutches and we had a 4 hour layover. No lounge was also disappointing. All of my status is on British Airways so I will go back to flying BA. We flew Swiss because my father did not want to go through Heathrow. On a positive, the crew were super nice and accommodating for my father who had recently had hip replacement surgery. Food was okay. I"m not a good person to critique the food, I never like airplane food.

-Swiss airlines online check in app crashed multiple times -Zurich airport does not have very many bathrooms accessible to people with disabilities - closest disability accessible bathroom to departure gate was 1/4 mile away.

It is a good airlines, very professional very good food. I wish they offered free luggage is the only thing.

Everything was great except food . It as okay not good not bad

better announcing at the gate prior to boarding and better organization of various gps

Flight attendant served beverage to everyone during meal service and forgot about me. Had to call her several times until she realized it. Not a good service for a business class flight

The plane was good - on time! But can the stewardesses smile or actually be nice - not to bark the commands

I had to stay in the airport 15 even with a hotel reservation..i was refused to inter to qatar cuz the hotel was outside the airport. They could have offered a solution. It was really exhausting for me and my family.

The American/Hollywood movies in the entertainment system lack english subtitles, they tend to have only arabic subtitles. Coupled with the low quality airplane earphones and cabin noise, it sometimes is difficult to follow the movie dialogues.

Qatar Airways did a very good job. Flights were slightly delayed with boarding but pilots made up time by arrival. The food was OK, no better or worse than other airlines. Although it would be nice to have three meals during 16 hours flight instead of two.

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Qatar Airways in-flight first/business class service is superior to any US airline; excellent meals are served on short haul flights such as between DXB and DOH.

Boston to Doha was great but Doha to Dhaka was the worst experience.

Doha airport is huge , takes long time to reach gate .

Moved seats, didn't accommodate requests to change seats even though other seats were available.

Good staff, good intent, decent entertainment. More seat space would always be of benefit

Turkish Airlines overbooked the flight and they did not allow me to board the flight even though I had the proper boarding pass and was at the gate on time. Simply unacceptable.

In sharp contrast to the modern glitzy airport, boarding facilities were primitive. Passengers had to board buses and walk up steep stairs in bitter cold with carry-on baggages. I found no reason why aerobridge was not provided.

they have cancell the flight with no reasons, My parents were in the cold weather in the airport for 24 hours they did not give any hotel and food. I hate Turkish Airline, this is our last time that we ha ve chosen Turkish Airline.

they have cancell the flight for no reasons and 24 hours my parents were in the Airport they did not give them any hotel any food, I hate Turkish Airline.

Turkish Airlines is amazing. I have a problem with the ticket I purchased through the kayak website. I have filed a complaint related to the fact that I was contacted by phone on the day I purchased the ticket and told that the amount that the ticket had been advertised for was not accurate and that I had to pay more. This is totally fraudulent. I will look into addressing this further tomorrow and will never ever use kayak again.

I liked the ability to walk and stand in the crew area. I hated the security check experience before boarding. The airport staff were so rude, yelling at us unnecessarily, delaying us on purpose, and even threatening to call the police on us!

Everything was great except that everyone were putting backpacks and small bags in the overhead compartment instead under the seat so there was no room for carry on-s

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

Good overall flight. Excellent crew. Food options could be improved.

Flight was delayed then we had to redirect for medical emergency during which time we had no information on what is the plan. The connecting flight was also delayed.

The flight was cancelled due to tech problem with the plane

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

The service was really good. The breakfast food could’ve been better as I don’t eat sweets for breakfast and the only choice was a muffin. Overall, good experience though. Thank you.

Seats were extremely hard and uncomfortable. as well as very narrow even though I paid an extra $230 for upgraded preferred seats. Very disappointed in the downtrend of Lufthansa and United Airlines.

My flight was delayed d the gate was never updated inside the terminal. If I hadn’t checked my email I would have missed my flight. Also, I paid a total of $5100 for my flight to be. Business or first class. My final leg of my flight from Heathrow to Frankfurt was not to standard of what I expected or experienced in the previous legs of my trip.

Using the media screen in economy class is a disaster

It’s not bad, simply it’s not as it used to be years ago.

Not good. They charged an additional $70 to check a bag we had already paid for on line with Lufstansa

Not enough time between connecting flights. We had to run through the Frankfurt airport and nearly missed our flight to the US. Extremely tight seating in Economy. No room and I'm not a large person. Please prevent any seats from reclining so my kneecaps are not destroyed again. Entertainment system touch screen did not recognize inputs. Seemed to be a problem for many. Crew were very nice and the food was not bad.

The plane was late and had not been cleaned prior to our flight from Frankfurt to LA, so we had to use bathrooms that were completely filthy and stank like hell. One of them eventually was even closed early on during the flight. It was a horrific experience.

Everything you need to know for your flight from Sydney to Porto

Information on your arrival and departure airports

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