SYD - OPO

$961 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 21/6. 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 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
$1,684
Typical prices: $2,351-$1,803
Multiple Airlines
Tue 21/7Thu 27/8
SYD - OPO • 2 stops
Cheapest one-way flight
$961
Typical prices: $1,066-$1,460
Turkish Airlines
Sun 21/6
SYD - OPO • 2 stops
Top airlines
Cheapest • from $1,980 (return)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Sydney and Porto. You’ll need at least 2 connections.
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 32% 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, 21 Jul - Thu, 27 Aug
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
$1,684Multiple Airlines
Tue, 21 Jul - Thu, 27 Aug
Multiple Airlines Logo
19:40 - 09:00
SYD
-
OPO
46h 20m
3 stops
Multiple Airlines Logo
07:00 - 14:50
OPO
-
SYD
46h 50m
3 stops
$1,704Multiple Airlines
Thu, 23 Jul - Thu, 27 Aug
Multiple Airlines Logo
11:40 - 15:45
SYD
-
OPO
37h 05m
2 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,778Multiple Airlines
Wed, 22 Jul - Thu, 27 Aug
Multiple Airlines Logo
11:40 - 15:40
SYD
-
OPO
37h 00m
2 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,799Multiple Airlines
Sat, 25 Jul - Thu, 27 Aug
Multiple Airlines Logo
19:40 - 21:20
SYD
-
OPO
34h 40m
2 stops
Multiple Airlines Logo
08:35 - 14:50
OPO
-
SYD
45h 15m
2 stops
$1,805Multiple Airlines
Fri, 24 Jul - Thu, 27 Aug
Multiple Airlines Logo
14:45 - 15:40
SYD
-
OPO
33h 55m
2 stops
Multiple Airlines Logo
06:10 - 05:10
OPO
-
SYD
38h 00m
2 stops
$1,866Multiple Airlines
Tue, 28 Jul - Sun, 27 Sep
Multiple Airlines Logo
14:45 - 23:30
SYD
-
OPO
41h 45m
2 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,874Multiple Airlines
Sat, 25 Jul - Thu, 27 Aug
Multiple Airlines Logo
14:45 - 15:40
SYD
-
OPO
33h 55m
2 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,876Multiple Airlines
Tue, 28 Jul - Sun, 27 Sep
Multiple Airlines Logo
07:20 - 15:40
SYD
-
OPO
41h 20m
3 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,878Multiple Airlines
Thu, 23 Jul - Thu, 27 Aug
Multiple Airlines Logo
14:45 - 09:40
SYD
-
OPO
27h 55m
2 stops
Multiple Airlines Logo
16:40 - 05:10
OPO
-
SYD
27h 30m
2 stops
$1,888Multiple Airlines
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 April, where the average cost of round-trip tickets is $2,806 and $2,418 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 4 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Cheapest flight$961
Most popular time to fly and prices are also 5% 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 $961 for a one-way ticket and $1,684 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 $1,588 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 $2,807 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.

  • Which airlines provide the cheapest flights from Sydney to Porto?

    In the past 3 days, the cheapest return tickets from Sydney to Porto were found on Etihad Airways ($1,980) and Turkish Airlines ($2,082).

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 1511 reviews
7.3Food
7.2Entertainment
7.8Boarding
7.7Comfort
8.4Crew
Airline reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

10.0 ExcellentBob, May 2026
AMS - YYZ
Read more KLM reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

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

It was really nice journey i personally recommend 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.

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

The boarding process was awful-the computers were down and there was no way to check in. Took extremely long, very chaotic and no guarantee our bags were even getting on the plane. I was also delayed and took away from any time i had to catch a connecting flight.

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.

The boarding experience did not follow the Zones that were listed on the boarding passes. This was a two-level aircraft with many passengers. Because zones were not called out by the airline staff, there was simply a mob trying to board and it was not a pleasant experience.

It was very good. It was a long flight and being a tight with little leg room.

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

The ground crew members at check in counter were courteous. The boarding was seamless. Flight departed as scheduled. Service on board was great

They are absolutely impossible to get hold of. A death in the family caused us to delay our departure. They are impossible to get through to and after waiting 41/2 hours I was told they would not consider helping us. They cancelled our return flight and have not reimbursed anything. I strongly urge readers to consider a different airline.

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

The crew was awesome. My husband fell while traveling to the WC and got a head abrasion. The crew helped him greatly and a physician that was also on the flight checked him out as well. They all get an A+!

It was peaceful excited We enjoyed it always Turkish peaceful excited

Our flight was canceled with no rebooking offered. We are still waiting for a refund and had to book a very expensive flight to return to Toronto without any compensation or help from Turkish or flight hub. Extremely poor service during a time of crisis, speaks volumes about the type of airline and flight hub as a disaster of a company with zero accountability

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.

Business Class pods are horrible. If you're petite, you might be able to sleep on the uncomfortable seat and bed. Crew and food are fantastic.

Very Bad experience bqz I was missed my next flight.

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.

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.

Limit the number of usage of wine or please arrange our seats. The passenger was drunk on this flight and not on Thiruvananthapuram to Abudhabi.

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

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

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.

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 !

Awful the whole airline arrived to check baggage and board our flight and the airline desk was closed where none of the passengers could check in baggage, asked for a supervisor and was refused a supervisor, called the airlines from the airport and they refused to refund the flights for their actions in the airport, Etihad and Garuda Airlines absolutely horrible customer service all the way around.

No entertainment except on app. No outlets working to charge. Good service

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.

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!

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

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.

Hate their old flights, boatding, food and services. Very poor quality

Never happened. Flight was delayed. Had to be re rojyed

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

Information on your arrival and departure airports