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$690 Cheap flights to Porto

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Porto departing on 31/10. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to Porto

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:40 - 06:50SYD  Sydney Kingsford Smith-OPO Porto
44h 10m2 stops Beijing Capital Madrid Barajas
Multiple Airlines Logo
07:35 - 15:50OPO  Porto-SYD Sydney Kingsford Smith
46h 15m2 stops Madrid Barajas Beijing Capital
$1,516Multiple Airlines
Sat, 3 Oct - Sun, 18 Oct
Multiple Airlines Logo
12:00 - 12:35SYD  Sydney Kingsford Smith-OPO Porto
35h 35m2 stops Shanghai Pu Dong London Gatwick
Multiple Airlines Logo
12:00 - 10:00OPO  Porto-SYD Sydney Kingsford Smith
35h 00m3 stops Lisbon Humberto Delgado London Heathrow Shanghai Pu Dong
$1,678Multiple Airlines
Fri, 13 Nov - Sat, 28 Nov
Etihad Airways Logo
21:30 - 19:20SYD  Sydney Kingsford Smith-OPO Porto
56h 50m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Etihad Airways Logo
07:35 - 06:30OPO  Porto-SYD Sydney Kingsford Smith
35h 55m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,710Etihad Airways
Fri, 13 Nov - Sat, 28 Nov
Etihad Airways Logo
21:30 - 15:15SYD  Sydney Kingsford Smith-OPO Porto
52h 45m2 stops Abu Dhabi Zayed Intl Madrid Barajas
Etihad Airways Logo
20:10 - 17:45OPO  Porto-SYD Sydney Kingsford Smith
58h 35m2 stops Madrid Barajas Abu Dhabi Zayed Intl
$1,744Etihad Airways
Mon, 16 Nov - Mon, 30 Nov
Turkish Airlines Logo
21:05 - 15:40SYD  Sydney Kingsford Smith-OPO Porto
27h 35m2 stops Kuala Lumpur Intl Istanbul
Turkish Airlines Logo
06:30 - 19:10OPO  Porto-SYD Sydney Kingsford Smith
27h 40m2 stops Istanbul Kuala Lumpur Intl
$2,225Turkish Airlines
Tue, 8 Sep - Mon, 14 Sep
Qatar Airways Logo
21:55 - 21:15BNE  Brisbane-OPO Porto
33h 20m2 stops Doha Hamad Intl Barcelona-El Prat
Qatar Airways Logo
08:45 - 17:30OPO  Porto-BNE Brisbane
46h 45m2 stops Barcelona-El Prat Doha Hamad Intl
$2,248Qatar Airways
Wed, 18 Nov - Sun, 22 Nov
Qatar Airways Logo
21:55 - 21:15BNE  Brisbane-OPO Porto
33h 20m2 stops Doha Hamad Intl Barcelona-El Prat
Qatar Airways Logo
08:45 - 17:30OPO  Porto-BNE Brisbane
46h 45m2 stops Barcelona-El Prat Doha Hamad Intl
$2,249Qatar Airways
Wed, 18 Nov - Sun, 22 Nov
United Airlines Logo
11:40 - 09:30BNE  Brisbane-OPO Porto
55h 50m2 stops San Francisco Newark
United Airlines Logo
12:35 - 07:30OPO  Porto-BNE Brisbane
56h 55m2 stops Newark San Francisco
$2,272United Airlines
Mon, 16 Nov - Fri, 20 Nov
Turkish Airlines Logo
10:00 - 15:40SYD  Sydney Kingsford Smith-OPO Porto
62h 40m2 stops Bangkok Suvarnabhumi Istanbul
Turkish Airlines Logo
06:30 - 19:10OPO  Porto-SYD Sydney Kingsford Smith
27h 40m2 stops Istanbul Kuala Lumpur Intl
$2,394Turkish Airlines
Tue, 8 Sep - Mon, 14 Sep
KLM Logo
10:10 - 10:55SYD  Sydney Kingsford Smith-OPO Porto
33h 45m3 stops Denpasar Bali Ngurah Rai Singapore Changi Amsterdam Schiphol
KLM Logo
16:20 - 07:30OPO  Porto-SYD Sydney Kingsford Smith
29h 10m3 stops Amsterdam Schiphol Singapore Changi Denpasar Bali Ngurah Rai
$4,913KLM
Sat, 3 Oct - Sun, 18 Oct

momondo Fare Finder

 
Locate flights to Porto that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 14 August 2026.
Use the filters below to find and compare flights to Porto that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 3/10

19:40-06:50

2 stops44h 10m

Porto

Sun 18/10

07:35-15:50

2 stops46h 15m

$1,516

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 13/11

12:00-12:35

2 stops35h 35m

Porto

Sat 28/11

12:00-10:00

3 stops35h 00m

$1,678

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Fri 13/11

21:30-19:20

2 stops56h 50m

Porto

Sat 28/11

07:35-06:30

2 stops35h 55m

$1,710

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Mon 16/11

21:30-15:15

2 stops52h 45m

Porto

Mon 30/11

20:10-17:45

2 stops58h 35m

$1,744
Fastest return journey

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 8/9

21:05-15:40

2 stops27h 35m

Porto

Mon 14/9

06:30-19:10

2 stops27h 40m

$2,225

BrisbanePorto

BNE Brisbane - OPO Porto

BNEOPO

Brisbane

Wed 18/11

21:55-21:15

2 stops33h 20m

Porto

Sun 22/11

08:45-17:30

2 stops46h 45m

$2,248

BrisbanePorto

BNE Brisbane - OPO Porto

BNEOPO

Brisbane

Wed 18/11

21:55-21:15

2 stops33h 20m

Porto

Sun 22/11

08:45-17:30

2 stops46h 45m

$2,249

BrisbanePorto

BNE Brisbane - OPO Porto

BNEOPO

Brisbane

Mon 16/11

11:40-09:30

2 stops55h 50m

Porto

Fri 20/11

12:35-07:30

2 stops56h 55m

$2,272

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Tue 8/9

10:00-15:40

2 stops62h 40m

Porto

Mon 14/9

06:30-19:10

2 stops27h 40m

$2,394

SydneyPorto

SYD Sydney Kingsford Smith - OPO Porto

SYDOPO

Sydney Kingsford Smith

Sat 3/10

10:10-10:55

3 stops33h 45m

Porto

Sun 18/10

16:20-07:30

3 stops29h 10m

$4,913

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

Porto flights insights and trends

Explore insights for your Porto flight to craft the best travel plan

What is the cheapest month to fly to Porto?

In general, February is the cheapest month to fly from Australia to Porto. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,488. If you aren’t able to travel to Porto during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,502.

Cheapest flights to Porto

Find the cheapest flights to Porto from your nearest city or airport
Find flights from Sydney to Porto
CHEAPEST MONTH TO FLY TO PORTO FROM SYDNEYFebruary20% cheaperFlying from Sydney to Porto costs on average just $1,488 in February
MOST EXPENSIVE MONTH TO FLY TO PORTO FROM SYDNEYDecember55% more expensiveIt costs about $2,858 for flights to Porto from Sydney in December
MOST POPULAR MONTH TO FLY TO PORTO FROM SYDNEYMay1,071% more users visitedMore momondo users searched in flights to Porto from Sydney in May than any other month

Cheap Porto flight deals and tips

Summary info about Porto flight prices, duration and airlines

Best One-Way Price

$690

Best Round-Trip Price

$1,516

Fastest flight time

31h 45m
The best one-way flight price to Porto from Australia in the last 5 days is $690 (Sydney Kingsford Smith to Porto).
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The best return flight price to Porto from Australia in the last 5 days is $1,516 (Sydney Kingsford Smith to Porto).
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The fastest flight to Porto from Australia takes 31h 45m (Melbourne to Porto).
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Frequently asked questions about flying to Porto

What is there to do in Porto when it’s raining?

Users planning a flight to Porto during the months of January, February, or October should anticipate rain. There are still things to do in Porto even when it's raining, though. While in Porto you will find Palácio da Bolsa nearby which is a great museum to visit when you’re looking for things to do indoors.

When did momondo last update prices for flights to Porto Airport?

Prices for flights to Porto Airport are updated daily.

How many operators does momondo search for flights to Porto Airport?

The number of operators available for flights to Porto Airport is 9 as of August 2026.

How old do you have to be to fly 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 to Porto Airport.

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

The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Porto?

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

Why use momondo?

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

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

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

momondo does allow users to show only those flights to Porto which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Porto?

momondo provides multiple filters to help you find the best flight to Porto. Filter by price, airline, airport, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Porto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Porto trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Porto

Popular Flights to Porto

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to Porto Flightsfrom $1,070
Melbourne to Porto Flightsfrom $1,265
Brisbane to Porto Flightsfrom $1,586