$452+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Mar 25 — Apr 11
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
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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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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 February 23, 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 February 23, 2026.
This Trip.com deal was found by Cheapflights users on 2/21. 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.
Wed 9/25:40 pm
PDX
- SYD
2 stops25h 10m
Multiple Airlines
Wed 9/161:15 pm
SYD
- PDX
2 stops24h 16m
Multiple Airlines
Deal found 2/21![Multiple Airlines logo]()
$882
This Air Canada deal was found by Cheapflights users on 2/19. 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 4/279:50 am
PDX
- SYD
1 stop28h 30m
Air Canada
Wed 5/69:20 am
SYD
- PDX
1 stop22h 25m
Air Canada
Deal found 2/19![Air Canada logo]()
$898
This Air Canada deal was found by Cheapflights users on 2/19. 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 5/510:10 am
PDX
- SYD
1 stop28h 10m
Air Canada
Tue 5/129:20 am
SYD
- PDX
1 stop17h 10m
Air Canada
Deal found 2/19![Air Canada logo]()
$901
This Air Canada deal was found by Cheapflights users on 2/19. 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 7/277:45 pm
PDX
- SYD
1 stop18h 35m
Air Canada
Sun 8/99:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 2/19![Air Canada logo]()
$902
This BusinessClass deal was found by Cheapflights users on 2/19. 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.
Wed 9/163:30 pm
PDX
- SYD
1 stop22h 50m
Singapore Airlines
Tue 9/227:00 am
SYD
- PDX
2 stops19h 31m
Singapore Airlines
Deal found 2/19![Singapore Airlines logo]()
$927
This Air Canada deal was found by Cheapflights users on 2/19. 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 2/237:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Sat 3/711:20 am
SYD
- PDX
1 stop26h 10m
Air Canada
Deal found 2/19![Air Canada logo]()
$932
This Air Canada deal was found by Cheapflights users on 2/19. 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.
Fri 9/2510:10 am
PDX
- SYD
1 stop28h 10m
Air Canada
Wed 9/309:20 am
SYD
- PDX
1 stop17h 11m
Air Canada
Deal found 2/19![Air Canada logo]()
$936
This Air Canada deal was found by Cheapflights users on 2/20. 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 6/223:25 pm
PDX
- SYD
1 stop22h 55m
Air Canada
Tue 7/219:20 am
SYD
- PDX
1 stop26h 46m
Air Canada
Deal found 2/20![Air Canada logo]()
$945
This BusinessClass deal was found by Cheapflights users on 2/19. 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.
Fri 9/2510:10 am
PDX
- SYD
1 stop28h 10m
Multiple Airlines
Wed 9/306:00 am
SYD
- PDX
2 stops20h 31m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$958
This BusinessClass deal was found by Cheapflights users on 2/19. 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 2/237:05 pm
PDX
- SYD
1 stop19h 30m
Multiple Airlines
Sat 3/78:30 am
SYD
- PDX
2 stops19h 45m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$961
This Air Canada deal was found by Cheapflights users on 2/20. 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 4/303:15 pm
PDX
- SYD
1 stop23h 05m
Air Canada
Thu 5/149:20 am
SYD
- PDX
1 stop22h 25m
Air Canada
Deal found 2/20![Air Canada logo]()
$966
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 February 23, 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 February 23, 2026.
This Air Canada deal was found by Cheapflights users on 2/19. 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 5/57:45 pm
PDX
- SYD
1 stop18h 35m
Air Canada
Tue 5/127:00 am
SYD
- PDX
2 stops19h 30m
Air Canada
Deal found 2/19![Air Canada logo]()
$989
This Air Canada deal was found by Cheapflights users on 2/19. 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 2/263:15 pm
PDX
- SYD
1 stop23h 20m
Multiple Airlines
Tue 3/109:20 pm
SYD
- PDX
2 stops29h 55m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,029
This Delta deal was found by Cheapflights users on 2/20. 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 3/1710:58 am
PDX
- SYD
1 stop25h 07m
Delta
Tue 3/249:40 am
SYD
- PDX
1 stop18h 21m
Delta
Deal found 2/20![Delta logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 2/267:10 am
PDX
- SYD
1 stop28h 50m
United Airlines
Tue 3/1012:10 pm
SYD
- PDX
1 stop20h 49m
United Airlines
Deal found 2/19![United Airlines logo]()
$1,119
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 3/93:10 pm
PDX
- SYD
2 stops23h 50m
American Airlines
Tue 3/2411:20 am
SYD
- PDX
1 stop23h 48m
American Airlines
Deal found 2/19![American Airlines logo]()
$1,120
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:39 pm
PDX
- SYD
2 stops34h 26m
Multiple Airlines
Tue 3/242:00 pm
SYD
- PDX
2 stops37h 35m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,048
This Delta deal was found by Cheapflights users on 2/22. 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.
Mon 4/135:05 pm
PDX
- SYD
2 stops20h 45m
Delta
Tue 4/289:15 am
SYD
- PDX
1 stop17h 49m
Delta
Deal found 2/22![Delta logo]()
$1,083
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/225:38 pm
PDX
- SYD
2 stops21h 42m
American Airlines
Mon 4/69:10 am
SYD
- PDX
1 stop24h 58m
American Airlines
Deal found 2/19![American Airlines logo]()
$1,144
This Air Canada deal was found by Cheapflights users on 2/19. 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 4/197:05 pm
PDX
- SYD
2 stops23h 20m
Multiple Airlines
Sun 4/266:00 am
SYD
- PDX
2 stops20h 10m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,049
This Delta deal was found by Cheapflights users on 2/20. 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 2/265:10 pm
PDX
- SYD
1 stop20h 20m
Delta
Tue 3/109:40 am
SYD
- PDX
2 stops24h 21m
Delta
Deal found 2/20![Delta logo]()
$1,124
Last-minute flights from Portland to SydneyDiscover last-minute flight deals from Portland to Sydney. Data last updated February 23, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sydney. Data last updated February 23, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 2/19. 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 2/237:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Sat 3/711:20 am
SYD
- PDX
1 stop26h 10m
Air Canada
Deal found 2/19![Air Canada logo]()
$932
This BusinessClass deal was found by Cheapflights users on 2/19. 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 2/237:05 pm
PDX
- SYD
1 stop19h 30m
Multiple Airlines
Sat 3/78:30 am
SYD
- PDX
2 stops19h 45m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$961
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/237:05 pm
PDX
- SYD
1 stop19h 30m
EVA Air
Sat 3/71:00 pm
SYD
- PDX
2 stops47h 30m
EVA Air
Deal found 2/19![EVA Air logo]()
$1,008
This Air Canada deal was found by Cheapflights users on 2/19. 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 2/263:15 pm
PDX
- SYD
1 stop23h 20m
Multiple Airlines
Tue 3/109:20 pm
SYD
- PDX
2 stops29h 55m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,029
This oojo deal was found by Cheapflights users on 2/22. 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 2/266:25 am
PDX
- SYD
2 stops35h 05m
Qantas Airways
Tue 3/109:25 pm
SYD
- PDX
1 stop17h 09m
Qantas Airways
Deal found 2/22![Qantas Airways logo]()
$1,052
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:30 pm
PDX
- SYD
2 stops27h 05m
Multiple Airlines
Wed 3/182:00 pm
SYD
- PDX
2 stops24h 32m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$1,039
This oojo deal was found by Cheapflights users on 2/21. 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.
Tue 3/32:47 pm
PDX
- SYD
1 stop20h 23m
Qantas Airways
Mon 3/1611:40 am
SYD
- PDX
2 stops28h 12m
Qantas Airways
Deal found 2/21![Qantas Airways logo]()
$1,003
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:39 pm
PDX
- SYD
2 stops34h 26m
Multiple Airlines
Tue 3/242:00 pm
SYD
- PDX
2 stops37h 35m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,048
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:30 pm
PDX
- SYD
2 stops28h 05m
Multiple Airlines
Tue 3/242:00 pm
SYD
- PDX
2 stops37h 35m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$1,047
This Air Canada deal was found by Cheapflights users on 2/20. 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 3/237:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Wed 4/89:20 am
SYD
- PDX
1 stop16h 50m
Air Canada
Deal found 2/20![Air Canada logo]()
$1,026
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 February 23, 2026.
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated February 23, 2026.
This Air Canada deal was found by Cheapflights users on 2/20. 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 3/57:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Deal found 2/20![Air Canada logo]()
$452
This BusinessClass deal was found by Cheapflights users on 2/20. 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.
Tue 3/37:05 pm
PDX
- SYD
2 stops29h 20m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 2/22. 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.
Tue 4/218:46 pm
PDX
- SYD
2 stops46h 04m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$463
This BusinessClass deal was found by Cheapflights users on 2/20. 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.
Sat 3/73:15 pm
PDX
- SYD
1 stop23h 20m
Asiana Airlines
Deal found 2/20![Asiana Airlines logo]()
$465
This Air Canada deal was found by Cheapflights users on 2/20. 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 3/39:50 am
PDX
- SYD
1 stop28h 45m
Air Canada
Deal found 2/20![Air Canada logo]()
$468
This Air Canada deal was found by Cheapflights users on 2/21. 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 3/237:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Deal found 2/21![Air Canada logo]()
$475
This Air Canada deal was found by Cheapflights users on 2/22. 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.
Wed 3/47:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Deal found 2/22![Air Canada logo]()
$476
This BusinessClass deal was found by Cheapflights users on 2/20. 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.
Tue 3/39:50 am
PDX
- SYD
1 stop28h 45m
ANA
Deal found 2/20![ANA logo]()
$481
This BusinessClass deal was found by Cheapflights users on 2/20. 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.
Thu 3/59:50 am
PDX
- SYD
2 stops33h 50m
Singapore Airlines
Deal found 2/20![Singapore Airlines logo]()
$487
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 3/79:24 am
PDX
- SYD
2 stops32h 11m
Multiple Airlines
Deal found 2/20![Multiple Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/25:43 pm
PDX
- SYD
1 stop20h 17m
American Airlines
Deal found 2/20![American Airlines logo]()
$499
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 February 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $898 (Air Canada) |
One-way from | $452 (Air Canada) |
Popular in | December |
Cheapest in | June |
Average price | $1,153 |
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 February 23, 2026.
Use the filters below to find and compare flights from Portland to Sydney that are best for you.
Fly from
Portland
Fly to
Sydney
Route
Depart
Return
Price
PortlandSydney
PDX - SYD
PDXSYD
Portland
Tue 5/5
7:45 pm-7:20 am
1 stop18h 35m
Sydney Kingsford Smith
Tue 5/12
7:00 am-9:30 am
2 stops19h 30m
$989
PortlandSydney
PDX - SYD
PDXSYD
Portland
Thu 2/26
3:15 pm-9:35 am
1 stop23h 20m
Sydney Kingsford Smith
Tue 3/10
9:20 pm-9:15 am
2 stops29h 55m
$1,029
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 3/9
5:39 pm-10:05 pm
2 stops34h 26m
Sydney Kingsford Smith
Tue 3/24
2:00 pm-9:35 am
2 stops37h 35m
$1,048
PortlandSydney
PDX - SYD
PDXSYD
Portland
Sun 4/19
7:05 pm-11:25 am
2 stops23h 20m
Sydney Kingsford Smith
Sun 4/26
6:00 am-9:10 am
2 stops20h 10m
$1,049
PortlandSydney
PDX - SYD
PDXSYD
Portland
Tue 3/17
10:58 am-6:05 am
1 stop25h 07m
Sydney Kingsford Smith
Tue 3/24
9:40 am-10:01 am
1 stop18h 21m
$1,079
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 4/13
5:05 pm-6:50 am
2 stops20h 45m
Sydney Kingsford Smith
Tue 4/28
9:15 am-10:04 am
1 stop17h 49m
$1,083
PortlandSydney
PDX - SYD
PDXSYD
Portland
Thu 2/26
7:10 am-7:00 am
1 stop28h 50m
Sydney Kingsford Smith
Tue 3/10
12:10 pm-2:59 pm
1 stop20h 49m
$1,119
PortlandSydney
PDX - SYD
PDXSYD
Portland
Mon 3/9
3:10 pm-9:00 am
2 stops23h 50m
Sydney Kingsford Smith
Tue 3/24
11:20 am-5:08 pm
1 stop23h 48m
$1,120
PortlandSydney
PDX - SYD
PDXSYD
Portland
Thu 2/26
5:10 pm-8:30 am
1 stop20h 20m
Sydney Kingsford Smith
Tue 3/10
9:40 am-4:01 pm
2 stops24h 21m
$1,124
PortlandSydney
PDX - SYD
PDXSYD
Portland
Sun 3/22
5:38 pm-9:20 am
2 stops21h 42m
Sydney Kingsford Smith
Mon 4/6
9:10 am-5:08 pm
1 stop24h 58m
$1,144
Showing 1-10 of 20 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | 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
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How far ahead should I book a flight from Portland to Sydney?
Use this chart to determine the optimal time to book a round-trip flight from Portland to Sydney. Price data was last updated on February 20, 2026.
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, February is the cheapest month in which you can book a flight from Portland to Sydney (average of $504). Flying from Portland to Sydney in December is currently the most expensive (average of $1,146). 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 February 23, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian 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.
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Crew
8.5
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Portland to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsParramatta
Wollongong
Manly
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Search flights from Portland to Sydney by cabin class
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Portland and Sydney flights
Browse other Portland and Sydney flight options. Last updated on February 23, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.
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Other flights to Sydney
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.
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 February 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$1,146 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$550 | Average$1,157 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$840 | Average$1,143 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$890 | Average$1,256 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$898 | Average$1,305 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$952 | Average$974 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$999 | Average$1,182 | FlexibilityNo cancel fee | On-time75% |