This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SYD
9 Dec — 16 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheap flight deals from Porto to Sydney
Enter your travel dates to find the best prices.
Cheapest
Best
Last-minute
One-way
Cheapest flights from Porto to Sydney
Explore the most affordable flight options available from Porto to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 November 2026.
Mon 14/1221:55 -
2 stops34h 25m
Wed 30/1221:10 -
2 stops35h 05m
Deal found 6/11£964
Mon 21/1221:55 -
2 stops34h 25m
Sun 17/122:10 -
2 stops45h 00m
Deal found 4/11£978
Wed 18/1120:10 -
2 stops35h 25m
Thu 10/1221:30 -
2 stops44h 15m
Deal found 7/11£1,262
Mon 9/1111:30 -
2 stops32h 05m
Mon 30/1116:10 -
2 stops29h 25m
Deal found 4/11£1,275
Sat 5/1221:55 -
2 stops45h 55m
Sat 19/1221:10 -
2 stops45h 30m
Deal found 6/11£1,335
Wed 18/1116:10 -
3 stops29h 25m
Thu 10/1212:00 -
2 stops33h 35m
Deal found 7/11£1,412
Best flights from Porto to Sydney
Discover carefully curated flight deals from Porto to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 November 2026.
Fri 22/121:55 -
2 stops45h 55m
Tue 2/215:50 -
2 stops33h 05m
Deal found 6/11£1,120
Thu 21/116:25 -
2 stops64h 00m
Sat 6/221:35 -
2 stops47h 20m
Deal found 6/11£1,276
Fri 22/107:35 -
2 stops35h 55m
Tue 20/415:40 -
2 stops33h 20m
Deal found 4/11£1,309
Tue 12/110:55 -
2 stops33h 15m
Sun 31/121:35 -
2 stops47h 20m
Deal found 8/11£1,310
Sun 24/121:55 -
2 stops45h 55m
Thu 11/215:50 -
2 stops33h 05m
Deal found 5/11£1,122
Tue 19/112:55 -
2 stops30h 35m
Mon 8/216:50 -
2 stops29h 00m
Deal found 6/11£1,309
Tue 19/120:40 -
2 stops34h 40m
Thu 11/215:50 -
2 stops33h 05m
Deal found 5/11£1,225
Sat 23/120:40 -
2 stops34h 40m
Wed 3/222:10 -
2 stops32h 15m
Deal found 6/11£1,247
Mon 18/120:40 -
2 stops34h 40m
Sat 13/222:10 -
2 stops45h 00m
Deal found 5/11£1,247
Fri 22/120:40 -
2 stops34h 40m
Tue 9/222:10 -
2 stops45h 00m
Deal found 5/11£1,247
Tue 19/120:40 -
2 stops34h 40m
Mon 19/415:50 -
2 stops38h 30m
Deal found 4/11£1,288
Last-minute flights from Porto to Sydney
Discover last-minute flight deals from Porto to Sydney. Data last updated 9 November 2026 and is based on user searches.
Mon 9/1111:30 -
2 stops32h 05m
Mon 30/1116:10 -
2 stops29h 25m
Deal found 4/11£1,275
Wed 18/1120:10 -
2 stops35h 25m
Thu 10/1221:30 -
2 stops44h 15m
Deal found 7/11£1,262
Wed 18/1116:10 -
3 stops29h 25m
Thu 10/1212:00 -
2 stops33h 35m
Deal found 7/11£1,412
Sat 5/1221:55 -
2 stops45h 55m
Sat 19/1221:10 -
2 stops45h 30m
Deal found 6/11£1,335
Mon 14/1221:55 -
2 stops34h 25m
Wed 30/1221:10 -
2 stops35h 05m
Deal found 6/11£964
Mon 21/1221:55 -
2 stops34h 25m
Sun 17/122:10 -
2 stops45h 00m
Deal found 4/11£978
One-way flights from Porto to Sydney
Search for one-way flight options from Porto to Sydney. Find affordable one-way fares based on user searches. Data last updated 9 November 2026.
Mon 15/210:25 -
3 stops57h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£409
Fri 19/215:05 -
2 stops40h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£424
Sat 20/222:05 -
3 stops57h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£428
Thu 18/218:05 -
3 stops55h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£434
Sun 14/207:30 -
3 stops48h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£461
Tue 16/210:30 -
3 stops57h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£473
Wed 17/206:30 -
2 stops38h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£526
Tue 12/116:10 -
2 stops58h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£551
Find flight deals from Porto to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 9 November 2026.
Customise your flight search to find flights from Porto to Sydney 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, Cheapflights users made 7,457,451 searches. Data last updated 9 November 2026.
Use the filters below to find and compare flights from Porto to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Sun 17/1
19:35-13:40
2 stops55h 05m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£562
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Tue 12/1
20:45-13:40
3 stops53h 55m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£597
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Fri 22/1
15:05-06:30
3 stops52h 25m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£626
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Wed 20/1
06:25-07:10
3 stops37h 45m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£636
Fastest return journey
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Sat 13/3
16:40-06:50
2 stops27h 10m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£670
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Thu 21/1
15:35-20:25
2 stops41h 50m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£675
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Sat 13/3
12:40-06:30
2 stops30h 50m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£684
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Sun 14/2
08:45-06:50
2 stops35h 05m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£731
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Mon 18/1
20:40-18:20
2 stops34h 40m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£788
PortoSydney
OPO Porto - SYD Sydney Kingsford Smith
OPOSYD
Porto
Sat 23/1
20:40-18:20
2 stops34h 40m
Sydney Kingsford Smith
Wed 31/12
00:00-15:00
Nonstop0h 00m
£807
Flights are sorted by cheapest return flights first.
Deals found on 4/11
Showing 1-10 of 23 resultsSorted by cheapest first
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2
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Best time to book a flight from Porto to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Porto with our price prediction graph.
OPO-SYD
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Porto to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Porto to Sydney?
For as low as £1,120, Qatar Airways can have you in Sydney from Porto in 45h 55m. The distance between Porto and Sydney is about 11220 mi.
Can I find deals for flights from Porto to Sydney that include hotel bookings?
Yes. In addition to deals on Porto to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Porto to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Sydney.
Can I find deals for business class flights from Porto to Sydney?
Yes. Cheapflights offers flight deals from Porto to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 November 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Porto to Sydney?
When you search for this flight from Porto to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Porto to Sydney?
Millions of users choose and trust Cheapflights to book the best flight deals from Porto to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Porto to Sydney with no change fees?
Yes! Cheapflights helps users easily find flights from Porto to Sydney with no change fees.
Can Cheapflights notify me if prices for flights from Porto to Sydney become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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