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Cheap flights from Sydney to Porto from $656

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Porto departing on 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Sydney to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
21:30 - 06:50
SYD
-
OPO
42h 20m
2 stops
Etihad Airways Logo
16:05 - 06:10
OPO
-
SYD
29h 05m
2 stops
$1,481Etihad Airways
Sat, 25 Apr - Fri, 15 May
Etihad Airways Logo
15:40 - 19:20
SYD
-
OPO
36h 40m
2 stops
Etihad Airways Logo
16:05 - 16:50
OPO
-
SYD
39h 45m
2 stops
$1,489Etihad Airways
Mon, 20 Apr - Tue, 2 Jun
Etihad Airways Logo
21:45 - 06:50
SYD
-
OPO
44h 05m
2 stops
Etihad Airways Logo
20:00 - 17:55
OPO
-
SYD
34h 55m
2 stops
$1,532Etihad Airways
Thu, 12 Mar - Thu, 19 Mar
Etihad Airways Logo
16:35 - 10:50
SYD
-
OPO
29h 15m
2 stops
Etihad Airways Logo
07:35 - 17:55
OPO
-
SYD
47h 20m
2 stops
$1,533Etihad Airways
Mon, 9 Mar - Tue, 24 Mar
Multiple Airlines Logo
20:40 - 19:20
SYD
-
OPO
57h 40m
2 stops
Multiple Airlines Logo
11:35 - 15:30
OPO
-
SYD
40h 55m
2 stops
$1,543Multiple Airlines
Thu, 12 Mar - Thu, 19 Mar
British Airways Logo
10:10 - 19:30
SYD
-
OPO
42h 20m
2 stops
British Airways Logo
21:10 - 06:05
OPO
-
SYD
47h 55m
2 stops
$1,564British Airways
Tue, 19 May - Fri, 12 Jun
British Airways Logo
21:55 - 20:20
SYD
-
OPO
55h 25m
2 stops
British Airways Logo
21:10 - 06:05
OPO
-
SYD
47h 55m
2 stops
$1,566British Airways
Sat, 23 May - Fri, 12 Jun
Etihad Airways Logo
15:40 - 15:15
SYD
-
OPO
32h 35m
2 stops
Etihad Airways Logo
16:05 - 16:50
OPO
-
SYD
39h 45m
2 stops
$1,581Etihad Airways
Mon, 25 May - Tue, 9 Jun
Etihad Airways Logo
15:40 - 10:55
SYD
-
OPO
28h 15m
2 stops
Etihad Airways Logo
16:05 - 06:10
OPO
-
SYD
29h 05m
2 stops
$1,595Etihad Airways
Sun, 7 Jun - Mon, 8 Jun
Etihad Airways Logo
21:30 - 06:50
SYD
-
OPO
42h 20m
2 stops
Etihad Airways Logo
11:35 - 06:10
OPO
-
SYD
33h 35m
2 stops
$1,615Etihad Airways
Fri, 22 May - Fri, 12 Jun

Etihad Airways flights from Sydney to Porto

Our best Etihad Airways deals on Sydney to Porto flight tickets
Etihad Airways
25 Apr
SYD21:30Sydney Kingsford Smith
42h 20m
2 stops
OPO06:50Porto
15 May
OPO16:05Porto
29h 05m
2 stops
SYD06:10Sydney Kingsford Smith
$1,481
Etihad Airways
20 Apr
SYD15:40Sydney Kingsford Smith
36h 40m
2 stops
OPO19:20Porto
2 June
OPO16:05Porto
39h 45m
2 stops
SYD16:50Sydney Kingsford Smith
$1,489
Etihad Airways
12 Mar
SYD21:45Sydney Kingsford Smith
44h 05m
2 stops
OPO06:50Porto
19 Mar
OPO20:00Porto
34h 55m
2 stops
SYD17:55Sydney Kingsford Smith
$1,532

KLM flights from Sydney to Porto

Our best KLM deals on Sydney to Porto flight tickets
KLM
13 Apr
SYD13:05Sydney Kingsford Smith
35h 25m
2 stops
OPO15:30Porto
2 June
OPO16:20Porto
29h 10m
3 stops
SYD06:30Sydney Kingsford Smith
$2,570
KLM
31 Mar
SYD11:10Sydney Kingsford Smith
33h 45m
3 stops
OPO10:55Porto
7 Apr
OPO16:20Porto
29h 10m
3 stops
SYD06:30Sydney Kingsford Smith
$3,124
KLM
25 Apr
SYD10:10Sydney Kingsford Smith
33h 45m
3 stops
OPO10:55Porto
15 May
OPO16:20Porto
29h 10m
3 stops
SYD06:30Sydney Kingsford Smith
$3,613

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 16 February 2026.
Use the filters below to find and compare flights from Sydney to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 25/4

21:30-06:50

2 stops42h 20m

Porto

Fri 15/5

16:05-06:10

2 stops29h 05m

$1,481

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 20/4

15:40-19:20

2 stops36h 40m

Porto

Tue 2/6

16:05-16:50

2 stops39h 45m

$1,489

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 12/3

21:45-06:50

2 stops44h 05m

Porto

Thu 19/3

20:00-17:55

2 stops34h 55m

$1,532

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 9/3

16:35-10:50

2 stops29h 15m

Porto

Tue 24/3

07:35-17:55

2 stops47h 20m

$1,533

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Thu 12/3

20:40-19:20

2 stops57h 40m

Porto

Thu 19/3

11:35-15:30

2 stops40h 55m

$1,543

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Tue 19/5

10:10-19:30

2 stops42h 20m

Porto

Fri 12/6

21:10-06:05

2 stops47h 55m

$1,564

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sat 23/5

21:55-20:20

2 stops55h 25m

Porto

Fri 12/6

21:10-06:05

2 stops47h 55m

$1,566

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Mon 25/5

15:40-15:15

2 stops32h 35m

Porto

Tue 9/6

16:05-16:50

2 stops39h 45m

$1,581

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Sun 7/6

15:40-10:55

2 stops28h 15m

Porto

Mon 8/6

16:05-06:10

2 stops29h 05m

$1,595

SydneyPorto

SYD - OPO

SYDOPO

Sydney Kingsford Smith

Fri 22/5

21:30-06:50

2 stops42h 20m

Porto

Fri 12/6

11:35-06:10

2 stops33h 35m

$1,615

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Sydney to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sydney and Porto?

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

You are more likely to see cheaper flights to Porto from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $1,959 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Sydney for as low as $1,633 on momondo.

Can stopping save me money on Sydney to Porto flights?

You could potentially save up to 19% on your flight if you consider stops on a Sydney to Porto flight.

How have Sydney to Porto flight prices changed over time?

As of February 2026, prices for Sydney to Porto flights are approximately 42% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to Porto (SYD to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Porto

Fastest flight time

29h 15m

Direct flights

None
The fastest flight from Sydney to Porto takes 29h 15m
There are no direct flights from Sydney to Porto. There are no popular flight routes from Sydney to Porto.
Search flight deals

  • How far is Sydney Kingsford Smith to Porto by plane?

    Porto is 18054.7 km away from Sydney Kingsford Smith. Flights usually cover this in 29h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Porto Airport?

    Prices for flights from Sydney Kingsford Smith Airport to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Porto Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Porto Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sydney to Porto?

Best airlines flying from Sydney to Porto

Compare and see reviews for airlines that fly from Sydney to Porto with momondo
Airline
Rating
Free cancellation
Price
Etihad AirwaysPriceFrom $1,350Free cancellationRating
7.3
1,396 reviews
Search Etihad Airways flights
Japan AirlinesPriceFrom $1,508Free cancellationRating
8.3
1,704 reviews
Search Japan Airlines flights
Turkish AirlinesPriceFrom $1,603Free cancellationRating
7.3
4,218 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $1,652Free cancellationRating
6.8
7,786 reviews
Search Lufthansa flights
United AirlinesPriceFrom $1,845Free cancellationRating
7.4
9,300 reviews
Search United Airlines flights
British AirwaysPriceFrom $1,862Free cancellationRating
6.7
7,750 reviews
Search British Airways flights
Air FrancePriceFrom $2,090Free cancellationRating
7.4
1,534 reviews
Search Air France flights
Qatar AirwaysPriceFrom $2,135Free cancellationRating
7.4
3,741 reviews
Search Qatar Airways flights
KLMPriceFrom $2,294Free cancellationRating
7.7
1,455 reviews
Search KLM flights

Travelling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Coimbra
Vila Nova de Gaia
Aveiro

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Porto?

Finding the right flight to Porto from Sydney is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto quick and easy, saving you time and money.

Can I find flights from Sydney to Porto with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Sydney to Porto flights to just show those with flexible booking policies.

How can momondo help me find flights from Sydney to Porto?

Once all potential Sydney to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Sydney to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sydney to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Porto trip

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