$655+ Cheap flights from Portland (PDX) to Sydney (SYD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Sydney with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 October 30, 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 October 30, 2026.
This Air Canada deal was found by Cheapflights users on 10/25. 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 10/2610:05 am -
1 stop28h 30m
Sun 11/86:20 am -
2 stops22h 06m
Deal found 10/25![Multiple Airlines logo]()
$987
This Air Canada deal was found by Cheapflights users on 10/25. 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 11/143:15 pm -
1 stop23h 20m
Thu 11/2611:20 am -
1 stop17h 06m
Deal found 10/25![Air Canada logo]()
$1,053
This Gotogate deal was found by Cheapflights users on 10/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:05 am -
1 stop31h 30m
Sun 11/811:20 am -
1 stop28h 26m
Deal found 10/25![Air Canada logo]()
$1,070
This Air Canada deal was found by Cheapflights users on 10/26. 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 11/147:10 pm -
1 stop19h 25m
Tue 11/2411:20 am -
1 stop22h 21m
Deal found 10/26![Air Canada logo]()
$1,072
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Sat 11/147:10 pm -
2 stops31h 05m
Tue 11/2411:20 am -
1 stop17h 06m
Deal found 10/26![Multiple Airlines logo]()
$1,088
This Air Canada deal was found by Cheapflights users on 10/25. 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.
Thu 11/263:15 pm -
1 stop23h 20m
Thu 12/107:25 pm -
2 stops42h 06m
Deal found 10/25![Air Canada logo]()
$1,106
This oojo deal was found by Cheapflights users on 10/25. 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.
Sun 11/15:30 pm -
1 stop17h 55m
Tue 12/111:10 am -
1 stop21h 38m
Deal found 10/25![Multiple Airlines logo]()
$1,115
This Travelocity deal was found by Cheapflights users on 10/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:04 pm -
1 stop41h 21m
Thu 11/129:40 pm -
1 stop27h 25m
Deal found 10/29![Multiple Airlines logo]()
$1,121
This American Airlines deal was found by Cheapflights users on 10/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:51 am -
1 stop31h 09m
Tue 12/16:45 pm -
2 stops24h 14m
Deal found 10/25![American Airlines logo]()
$1,144
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:00 am -
1 stop26h 30m
Mon 11/3010:40 am -
1 stop18h 24m
Deal found 10/28![Delta logo]()
$1,238
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sun 1/241:18 pm -
1 stop22h 02m
Sun 1/3111:50 am -
1 stop21h 46m
Deal found 10/29![United Airlines logo]()
$1,493
This Qantas Airways deal was found by Cheapflights users on 10/25. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/52:45 pm -
1 stop20h 50m
Fri 1/1511:05 am -
2 stops21h 45m
Deal found 10/25![Qantas Airways logo]()
$1,506
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:25 am -
2 stops26h 05m
Fri 11/2010:40 am -
2 stops24h 49m
Deal found 10/30![Delta logo]()
$1,332
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/205:50 pm -
1 stop30h 55m
Fri 1/19:40 pm -
2 stops27h 24m
Deal found 10/29![Multiple Airlines logo]()
$2,992
This Qantas Airways deal was found by Cheapflights users on 10/25. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/36:44 am -
1 stop31h 16m
Thu 1/149:50 pm -
2 stops35h 00m
Deal found 10/25![Qantas Airways logo]()
$1,514
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:45 am -
2 stops31h 45m
Sun 11/2910:40 am -
1 stop18h 24m
Deal found 10/26![Delta logo]()
$1,566
This United Airlines deal was found by Cheapflights users on 10/25. 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 1/27:12 pm -
2 stops40h 08m
Sun 1/171:20 pm -
2 stops23h 39m
Deal found 10/25![United Airlines logo]()
$1,762
This United Airlines deal was found by Cheapflights users on 10/27. 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 1/91:18 pm -
1 stop25h 02m
Sat 1/3011:50 am -
1 stop21h 46m
Deal found 10/27![United Airlines logo]()
$1,993
This United Airlines deal was found by Cheapflights users on 10/25. 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 1/25:30 am -
1 stop29h 50m
Thu 1/1411:50 am -
1 stop19h 27m
Deal found 10/25![United Airlines logo]()
$2,046
This Qantas Airways deal was found by Cheapflights users on 10/25. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:09 am -
1 stop31h 51m
Tue 12/298:55 am -
2 stops30h 06m
Deal found 10/25![Qantas Airways logo]()
$2,420
Last-minute flights from Portland to SydneyDiscover last-minute flight deals from Portland to Sydney. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sydney. Data last updated October 30, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 10/25. 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.
Sun 11/15:30 pm -
1 stop17h 55m
Tue 12/111:10 am -
1 stop21h 38m
Deal found 10/25![Multiple Airlines logo]()
$1,115
This American Airlines deal was found by Cheapflights users on 10/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:51 am -
1 stop31h 09m
Tue 12/16:45 pm -
2 stops24h 14m
Deal found 10/25![American Airlines logo]()
$1,144
This Travelocity deal was found by Cheapflights users on 10/29. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:04 pm -
1 stop41h 21m
Thu 11/129:40 pm -
1 stop27h 25m
Deal found 10/29![Multiple Airlines logo]()
$1,121
This Air Canada deal was found by Cheapflights users on 10/25. 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 11/143:15 pm -
1 stop23h 20m
Thu 11/2611:20 am -
1 stop17h 06m
Deal found 10/25![Air Canada logo]()
$1,053
This Air Canada deal was found by Cheapflights users on 10/26. 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 11/147:10 pm -
1 stop19h 25m
Tue 11/2411:20 am -
1 stop22h 21m
Deal found 10/26![Air Canada logo]()
$1,072
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Sat 11/147:10 pm -
2 stops31h 05m
Tue 11/2411:20 am -
1 stop17h 06m
Deal found 10/26![Multiple Airlines logo]()
$1,088
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:48 pm -
1 stop20h 37m
Thu 11/2611:15 am -
1 stop23h 33m
Deal found 10/26![Alaska Airlines logo]()
$1,202
This oojo deal was found by Cheapflights users on 10/26. 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.
Sat 11/219:30 pm -
1 stop40h 30m
Sat 12/511:10 am -
1 stop20h 22m
Deal found 10/26![Multiple Airlines logo]()
$1,169
This Air Canada deal was found by Cheapflights users on 10/25. 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.
Thu 11/263:15 pm -
1 stop23h 20m
Thu 12/107:25 pm -
2 stops42h 06m
Deal found 10/25![Air Canada logo]()
$1,106
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 October 30, 2026.
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/3110:30 am -
1 stop24h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Alaska Airlines logo]()
$655
This oojo deal was found by Cheapflights users on 10/27. 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 12/101:35 pm -
1 stop24h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$708
This oojo deal was found by Cheapflights users on 10/29. 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 12/106:10 am -
1 stop31h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Qantas Airways logo]()
$731
This FlightHub deal was found by Cheapflights users on 10/29. 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 12/274:43 pm -
2 stops24h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$740
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:25 pm -
2 stops23h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$825
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/245:06 pm -
1 stop18h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Qantas Airways logo]()
$840
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sun 1/106:10 pm -
2 stops29h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$927
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,053 (Air Canada) |
One-way from | $655 (Alaska Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $1,211 |
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 7,457,451 searches. Data last updated October 30, 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 Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Thu 12/31
10:30 am-6:25 am
1 stop24h 55m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$655
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Thu 12/10
6:10 am-9:00 am
1 stop31h 50m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$731
Quickest round-trip
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Sun 12/27
4:43 pm-12:35 pm
2 stops24h 52m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$740
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Tue 11/10
11:00 am-8:30 am
1 stop26h 30m
Sydney Kingsford Smith
Mon 11/30
10:40 am-10:04 am
1 stop18h 24m
$1,238
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Thu 11/5
11:25 am-8:30 am
2 stops26h 05m
Sydney Kingsford Smith
Fri 11/20
10:40 am-4:29 pm
2 stops24h 49m
$1,332
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Sun 1/24
1:18 pm-6:20 am
1 stop22h 02m
Sydney Kingsford Smith
Sun 1/31
11:50 am-2:36 pm
1 stop21h 46m
$1,493
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Tue 1/5
2:45 pm-6:35 am
1 stop20h 50m
Sydney Kingsford Smith
Fri 1/15
11:05 am-1:50 pm
2 stops21h 45m
$1,506
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Sun 1/3
6:44 am-9:00 am
1 stop31h 16m
Sydney Kingsford Smith
Thu 1/14
9:50 pm-1:50 pm
2 stops35h 00m
$1,514
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Sat 11/21
5:45 am-8:30 am
2 stops31h 45m
Sydney Kingsford Smith
Sun 11/29
10:40 am-10:04 am
1 stop18h 24m
$1,566
PortlandSydney
PDX Portland - SYD Sydney Kingsford Smith
PDXSYD
Portland
Sat 1/2
7:12 pm-6:20 am
2 stops40h 08m
Sydney Kingsford Smith
Sun 1/17
1:20 pm-5:59 pm
2 stops23h 39m
$1,762
Showing 1-10 of 14 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 October.
| 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 Accuracy- | Trust Score*1 star | |
| 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 74 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 $1,070). Flying from Portland to Sydney in December is currently the most expensive (average of $1,835). 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?
Airfare is below average for this route at the moment.
Portland to Sydney flights typically cost between $1,155 and $1,375 in November.The cheapest round-trip price found within the last 5 days was $1,053 on Air Canada (Nov 14-Nov 26).
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 67% 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.
Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of $1,301.
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 Los Angeles (LAX) have the shortest average one-way travel time for 1-stop routes: 20h 12m.
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 Los Angeles (LAX) offer the fastest connection on this route, with an average layover time of 3h 35m.
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 October 30, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andQantas Airways 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.
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Related info for your journey
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Book flights to Sydney if you plan to visit one of these locationsParramatta
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Portland and Sydney flights
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Top 5 airlines flying from Portland to Sydney
Discover the top 5 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$222 | Average$1,358 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$901 | Average$1,300 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$960 | Average$1,200 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,076 | Average$1,212 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,159 | Average$1,409 | FlexibilityNo cancel fee | On-time69% |