SYD - OPO

$797 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 14/7. 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 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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Everything you should know

Cheapest return fare
$1,527
Typical prices: $1,774-$2,201
Multiple Airlines
Tue 14/7Sun 13/9
SYD - OPO • 2 stops
Cheapest one-way flight
$797
Typical prices: $1,194-$1,460
Multiple Airlines
Tue 14/7
SYD - OPO • 3 stops
Direct flights
Not available
There are currently no direct flights between Sydney and Porto. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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 Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Porto

Tue, 14 Jul - Sun, 13 Sep
Multiple Airlines Logo
19:40 - 19:20
SYD
-
OPO
32h 40m
2 stops
Multiple Airlines Logo
07:35 - 14:50
OPO
-
SYD
46h 15m
2 stops
$1,527Multiple Airlines
Tue, 14 Jul - Sun, 13 Sep
Multiple Airlines Logo
19:40 - 08:10
SYD
-
OPO
45h 30m
3 stops
Multiple Airlines Logo
05:05 - 14:50
OPO
-
SYD
48h 45m
3 stops
$1,607Multiple Airlines
Tue, 14 Jul - Sun, 13 Sep
Multiple Airlines Logo
19:40 - 08:10
SYD
-
OPO
45h 30m
3 stops
Multiple Airlines Logo
05:05 - 14:50
OPO
-
SYD
48h 45m
3 stops
$1,689Multiple Airlines
Thu, 12 Nov - Mon, 16 Nov
Etihad Airways Logo
21:30 - 19:20
SYD
-
OPO
56h 50m
2 stops
Etihad Airways Logo
16:05 - 06:35
OPO
-
SYD
27h 30m
2 stops
$1,737Etihad Airways
Thu, 12 Nov - Mon, 16 Nov
Etihad Airways Logo
21:30 - 19:20
SYD
-
OPO
56h 50m
2 stops
Etihad Airways Logo
16:05 - 06:35
OPO
-
SYD
27h 30m
2 stops
$1,739Etihad Airways
Tue, 14 Jul - Sun, 13 Sep
Etihad Airways Logo
20:50 - 19:20
SYD
-
OPO
55h 30m
2 stops
Etihad Airways Logo
11:35 - 06:10
OPO
-
SYD
33h 35m
2 stops
$1,788Etihad Airways
Sat, 25 Jul - Thu, 27 Aug
Etihad Airways Logo
20:50 - 10:50
SYD
-
OPO
47h 00m
2 stops
Etihad Airways Logo
20:10 - 06:10
OPO
-
SYD
49h 00m
2 stops
$1,838Etihad Airways
Sat, 25 Jul - Thu, 27 Aug
Etihad Airways Logo
20:50 - 10:50
SYD
-
OPO
47h 00m
2 stops
Etihad Airways Logo
20:10 - 06:10
OPO
-
SYD
49h 00m
2 stops
$1,841Etihad Airways
Sun, 12 Jul - Sun, 13 Sep
Etihad Airways Logo
15:40 - 19:20
SYD
-
OPO
36h 40m
2 stops
Etihad Airways Logo
11:35 - 06:10
OPO
-
SYD
33h 35m
2 stops
$1,850Etihad Airways
Fri, 24 Jul - Fri, 11 Sep
Etihad Airways Logo
15:40 - 06:50
SYD
-
OPO
48h 10m
2 stops
Etihad Airways Logo
11:35 - 06:10
OPO
-
SYD
33h 35m
2 stops
$1,860Etihad Airways
Booking Insights

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.

How much is a return flight from Sydney to Porto?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Porto departing in July.

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 November, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,877 and $2,472 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 3 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$797
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly and prices are also 4% lower 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 $797 for a one-way ticket and $1,527 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?

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

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

    The two airlines most popular with KAYAK users for flights from Sydney to Porto are Japan Airlines and KLM. With an average price for the route of $1,628 and an overall rating of 8.3, Japan Airlines is the most popular choice. KLM is also a great choice for the route, with an average price of $2,877 and an overall rating of 7.8.

  • 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.

Reviews of the top 5 airlines flying 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 1530 reviews
7.7Comfort
7.3Food
8.4Crew
7.2Entertainment
7.8Boarding
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, June 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

It was fantastic. I really enjoyed it. It’s comfortable the flight attendant. Respect you anything you ask for they gave you except the water.

Seats were very tight with poor legroom - and I am average height. During the 12 hour flight, tiny paper cups of drinks we're only offered during the super and breakfast services, with the crew nowhere to be seen in between. One of the bathrooms was out of order, leading to long lines waiting to use the remaining two available to the economy class passengers.

This was my third time using Turkish Airlines. I was well satisfied with the overall experience! I believe that no one is perfect and that everyday we are trying to do the best we can to help others by giving a part of our lives through service. I believe from what I’ve seen that Turkish Airlines, have come close to that service! I will definitely recommend and reuse their services again! Thank you!

The crew were kind and very helpful. Did not expect food service. Was served a warm soft sandwich bread , was delicious. Overall the service, the staff were great. Highly recommend others to try Turkish Airline

Bag service at Iad airport was not nice at all. They served economy class first unvip first. This happened many times with different airports

Cabin was kept very hot and it was uncomfortable. Entertainment system did not work at my seat. Crew and service is fantastic

The crew checked the immigration laws very quickly for Russian citizenship and confirmed our FVTF for Singapore for 96 hrs. Thank you.

The local Turkish Airlines staff in Helsinki isn’t not aware of immigration laws of Singapore and wanted to refuse even our first boarding and threatened us with deportation on our own from Singapore. We had the next connection to Istanbul and then Singapore. The airline’s online check in system is requesting the visa to download and doesn’t have any option for 96 hrs VFTF passengers. So in general we made the complaint to the airline, as the boarding experience was awful due to unprofessional staff that doesn’t check or want to check the exceptions in the global system.

Crew were unfriendly, touch screen for movies didn't work very well, seats were tight and uncomfortable

it was great honestly for the melbourne flight a kit with blindfold and slippers was probided to each passenger on the seat and the food was really great will definitely recommend people take turkish airlines for travel not just on the sin-melbourne route.

checkin and boarding were good. Lounge was pathetic. All empty seats were having reserved tag, was very warm inside the lounge so basically we didnt utilise. The flight was A320, we blocked row 1 in economy assuming leg space will be sufficient. But it was OK, nothing great compared tot he first row of Air Arabia which we took for our trip. The food was horrible, i had the beed fwith mash potatoes. No salt, no spices nothing.

Very poor No information given to why we turned around.. No one at airport to help

Charged extra amount for the baggage wait. Even it’s less than 23kgs. Those machines are showing wrong weight and they were charging money wantedly from everyone.

Friendly and discreet staff. Could have done with a few more offers of water/snacks overnight. Movie and tv selection notably poor. Seats not especially comfortable

It was little disheartening and disappointing. Although flight staff did a good job. But customer service didn’t do anything to resolve my issue.

Boarding from DOH to SYD the Business Class were pointed in a separate gate but no one there to receive us. Otherwise it was ok.

My baggage is lost. Flight cancelled, Rebooked ticket through long routes. Mental stress, emotional hurt

I would love the entertainment center to be updated with more content. The flight to Doha had more options than the one to Miami

I wish the leg room was better for Economy especially for the outbound flights to India . The outbound flight to US and Qatar was good

The check-in and crew staff were wonderful. The food was reasonable. The online side Qatar was very poor. Seats were very tight and not very comfortable for a 14 hour flight!

i have book the flight with baggage. and i have paid $800.00 for the baggage. when i contacted to JUSTFLY Costumer Service they told me that my baggage was included in the booking. then why i have to pay. i am going to file a complain against it. $800.00 is not at all small amount

Air hostesses were great. Food was good. Flat bed is not that flat or comfortable.

Very disappointed to not have lounge access The shorter flight seats were uncomfortable

Seats were very comfortable and the staff too was very friendly.

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.

Flight got canceled due to Middle East conflict. Just fly hasn’t refunded me the money

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.

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 !

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.

Crew was professional, attentive, and delightful. However, the plane was delayed more than an hour. I recognize this was not Lufthansa’s fault, but was inexcusable was that there were no Lufthansa reps meeting the plane to give quick info about gates for connecting flights and how to navigate getting to those gates, especially when it required going to another terminal, going through security, and then returning to the original terminal. This was egregious - other airlines routinely do this when an arrival is significantly delayed.

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

They didn’t have my special meal I requested. It seemed like they just put a sticker on a veg meal for me. I had a little bit of it but it didn’t taste good and I got sick from eating it by the time I boarded my Frankfurt to NY flight

From HYD to FRA - plane (787-9) seating in economy was so terribly cramped. There were tons of empty seats but we were ordered (by Lufthansa's crew) that we cannot change seats even after we reached cruising altitude, ostensibly because of "safety reasons". So what could've been a nicer experience was totally soured. Food was good. Flight was punctual. From FRA to LHR - for some strange reason ("totally full flight") they asked us to check in our cabin bag! We told them that there were medicines and delicate items inside al we'd like to keep it with us in the cabin. Then they VERY rudely *ordered* is to unload our delicate items and meds and the. Check in the bag. We complied. On the way into the plane we saw many others (whites, of course!) rolling in similar bags happily into the plane. This, this leg of the trip was completely ruined for us by Lufthansa's crew. Bottom line: I am never traveling Lufthansa again!

The staff were so very cheerful and happy! It really made my day to encounter such chipper folks throughout my journey

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Crew was great. But my flight was late arriving and as a result, I missed my connecting flight to Richmond. I had to catch a later flight. On a positive note, the attendants at the counter were extremely helpful in booking my later flight. They book my on the next flight to Richmond.

False advertising: An empty seat between 2 economy seats, then classified as “Business” is not. Thin cushion, economy-like leg room. From Lufthansa, a globally recognized and renowned carrier. Must do better.

Crew was very courteous, friendly and professional. Caring and attentive.

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

Information on your arrival and departure airports