$590+ Cheap flights from Portland (PDX) to Sydney (SYD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Sydney
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Last-minute
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Cheapest flights from Portland to SydneyExplore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:30 pm
PDX
- SYD
1 stop22h 50m
Air Canada
Sun 9/139:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,058
This Justfly.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:45 pm
PDX
- SYD
1 stop18h 35m
Air Canada
Mon 10/1910:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,068
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:30 pm
PDX
- SYD
1 stop22h 50m
Multiple Airlines
Sun 9/136:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,078
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:10 am
PDX
- SYD
1 stop28h 10m
Multiple Airlines
Tue 8/46:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,080
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/223:30 pm
PDX
- SYD
2 stops30h 25m
Multiple Airlines
Tue 7/219:20 am
SYD
- PDX
1 stop26h 51m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,084
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:30 pm
PDX
- SYD
1 stop20h 55m
Qantas Airways
Thu 12/108:55 am
SYD
- PDX
2 stops27h 33m
Qantas Airways
Deal found 6/13![Qantas Airways logo]()
$1,089
This Justfly.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:15 pm
PDX
- SYD
2 stops46h 55m
Air Canada
Sun 11/2911:20 am
SYD
- PDX
1 stop28h 26m
Air Canada
Deal found 6/10![Air Canada logo]()
$1,090
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:45 pm
PDX
- SYD
2 stops21h 55m
Multiple Airlines
Mon 8/36:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,099
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:10 pm
PDX
- SYD
2 stops23h 30m
Multiple Airlines
Sun 11/296:20 am
SYD
- PDX
2 stops22h 06m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,100
Best flights from Portland to SydneyDiscover carefully curated flight deals from Portland to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Portland to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:50 am
PDX
- SYD
2 stops27h 10m
United Airlines
Sun 9/139:30 am
SYD
- PDX
2 stops30h 23m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,162
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:35 am
PDX
- SYD
3 stops29h 25m
United Airlines
Mon 8/39:30 am
SYD
- PDX
2 stops22h 43m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,294
This Air Tahiti Nui deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:27 pm
PDX
- SYD
3 stops48h 43m
Multiple Airlines
Tue 7/216:20 am
SYD
- PDX
3 stops27h 27m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$2,688
This Malaysia Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:30 pm
PDX
- SYD
2 stops42h 30m
Malaysia Airlines
Sun 9/131:05 pm
SYD
- PDX
3 stops47h 31m
Malaysia Airlines
Deal found 6/13![Malaysia Airlines logo]()
$2,878
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:35 am
PDX
- SYD
3 stops29h 25m
United Airlines
Sat 6/279:30 am
SYD
- PDX
2 stops28h 45m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,394
This Malaysia Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:30 pm
PDX
- SYD
2 stops42h 00m
Malaysia Airlines
Sun 9/131:05 pm
SYD
- PDX
3 stops47h 31m
Malaysia Airlines
Deal found 6/12![Malaysia Airlines logo]()
$2,878
This Malaysia Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:18 am
PDX
- SYD
3 stops45h 17m
Multiple Airlines
Sun 9/201:05 pm
SYD
- PDX
2 stops45h 35m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$3,123
This Malaysia Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:30 pm
PDX
- SYD
2 stops45h 30m
Malaysia Airlines
Sun 9/209:15 am
SYD
- PDX
3 stops51h 21m
Malaysia Airlines
Deal found 6/12![Malaysia Airlines logo]()
$3,220
Last-minute flights from Portland to SydneyDiscover last-minute flight deals from Portland to Sydney. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sydney. Data last updated June 15, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/223:30 pm
PDX
- SYD
2 stops30h 25m
Multiple Airlines
Tue 7/219:20 am
SYD
- PDX
1 stop26h 51m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,084
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/223:27 pm
PDX
- SYD
1 stop22h 38m
Qantas Airways
Tue 7/219:25 pm
SYD
- PDX
1 stop19h 27m
Qantas Airways
Deal found 6/13![Qantas Airways logo]()
$1,106
This BusinessClass deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:46 am
PDX
- SYD
1 stop18h 04m
Alaska Airlines
Tue 7/218:45 pm
SYD
- PDX
1 stop26h 26m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$1,128
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:45 pm
PDX
- SYD
1 stop18h 35m
Air Canada
Sun 8/29:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 6/10![Air Canada logo]()
$1,059
This Expedia deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:45 pm
PDX
- SYD
1 stop18h 35m
Air Canada
Thu 8/139:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,126
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:30 pm
PDX
- SYD
1 stop22h 50m
Multiple Airlines
Mon 8/36:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,078
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:10 am
PDX
- SYD
1 stop28h 10m
Multiple Airlines
Tue 8/46:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,080
This Rumbo deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:00 am
PDX
- SYD
1 stop31h 30m
Qantas Airways
Wed 8/59:10 am
SYD
- PDX
1 stop24h 37m
Qantas Airways
Deal found 6/14![Qantas Airways logo]()
$1,142
One-way flights from Portland to SydneySearch for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:36 pm
PDX
- SYD
3 stops44h 54m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:30 pm
PDX
- SYD
1 stop21h 00m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$600
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:30 pm
PDX
- SYD
1 stop22h 50m
Air Canada
Deal found 6/12![Air Canada logo]()
$613
This Expedia deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:10 am
PDX
- SYD
1 stop28h 10m
Air Canada
Deal found 6/14![Air Canada logo]()
$617
This SmartFares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:00 am
PDX
- SYD
1 stop17h 50m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:36 pm
PDX
- SYD
3 stops44h 54m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$633
This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:32 pm
PDX
- SYD
1 stop32h 18m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$634
This SmartFares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:32 pm
PDX
- SYD
1 stop32h 18m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$635
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:45 pm
PDX
- SYD
2 stops23h 55m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$640
Find flight deals from Portland to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,058 (Air Canada) |
One-way from | $590 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,117 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 2,558,603 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Portland to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 8/31
10:50 am-7:00 am
2 stops27h 10m
Sydney Kingsford Smith
Sun 9/13
9:30 am-10:53 pm
2 stops30h 23m
$1,162
Quickest round-trip
PortlandSydney
PDX - SYD
PDXSYD
Portland
Tue 7/28
8:35 am-7:00 am
3 stops29h 25m
Sydney Kingsford Smith
Mon 8/3
9:30 am-3:13 pm
2 stops22h 43m
$1,294
PortlandSydney
PDX - SYD
PDXSYD
Portland
Sat 6/20
8:35 am-7:00 am
3 stops29h 25m
Sydney Kingsford Smith
Sat 6/27
9:30 am-9:15 pm
2 stops28h 45m
$1,394
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 6/22
9:27 pm-3:10 pm
3 stops48h 43m
Sydney Kingsford Smith
Tue 7/21
6:20 am-4:47 pm
3 stops27h 27m
$2,688
PortlandSydney
PDX - SYD
PDXSYD
Portland
Fri 9/4
7:30 pm-7:00 am
2 stops42h 30m
Sydney Kingsford Smith
Sun 9/13
1:05 pm-7:36 pm
3 stops47h 31m
$2,878
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 8/31
7:30 pm-6:30 am
2 stops42h 00m
Sydney Kingsford Smith
Sun 9/13
1:05 pm-7:36 pm
3 stops47h 31m
$2,878
PortlandSydney
PDX - SYD
PDXSYD
Portland
Thu 9/3
5:18 am-7:35 pm
3 stops45h 17m
Sydney Kingsford Smith
Sun 9/20
1:05 pm-5:40 pm
2 stops45h 35m
$3,123
PortlandSydney
PDX - SYD
PDXSYD
Portland
Thu 9/3
7:30 pm-10:00 am
2 stops45h 30m
Sydney Kingsford Smith
Sun 9/20
9:15 am-7:36 pm
3 stops51h 21m
$3,220
Cheapest one-way
PortlandSydney
PDX - SYD
PDXSYD
Portland
Sun 7/26
3:30 pm-7:20 am
1 stop22h 50m
$613
PortlandSydney
PDX - SYD
PDXSYD
Portland
Tue 8/4
3:30 pm-7:20 am
1 stop22h 50m
$613
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Portland to Sydney
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Sydney in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Sydney flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Portland with our price prediction graph.
PDX-SYD
Estimated round-trip 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.
Cheapflights Insights
Everything you need to know about your flight from Portland to Sydney
Prices
More
How far ahead should I book a flight from Portland to Sydney?
Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Portland to Sydney?
Currently, September is the cheapest month in which you can book a flight from Portland to Sydney (average of $976). Flying from Portland to Sydney in December is currently the most expensive (average of $1,781). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Portland to Sydney?
What’s the top layover airport for flights from Portland to Sydney?
Share of 1-stop round-trip flights from Portland to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.
Los Angeles (LAX) – chosen by Cheapflights users on 33% of 1-stop itineraries from Portland to Sydney on Cheapflights.
What’s the cheapest layover airport for flights from Portland to Sydney?
Average round-trip fare for 1-stop flights from Portland to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.
San Francisco (SFO) is the most affordable 1-stop option, with an average round-trip price of $1,055.
What’s the fastest layover option from Portland to Sydney?
Shortest average travel time for 1-stop one-way flights from Portland to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 18h 29m.
Which airport typically offers the quickest layover for flights from Portland to Sydney?
Average layover duration for 1-stop one-way flights from Portland to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 2h 47m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated June 15, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Qantas Airways, andUnited Airlines from Portland to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
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Portland and Sydney flights
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Top 7 airlines flying from Portland to Sydney
Discover the top 7 airlines that operate flights from Portland to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$229 | Average$1,268 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$550 | Average$1,154 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$830 | Average$1,217 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$886 | Average$1,160 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$906 | Average$1,152 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$954 | Average$974 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$999 | Average$1,182 | FlexibilityNo cancel fee | On-time75% |