$417+ Cheap flights from Portland (PDX) to Australia
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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Mar 22 — Mar 291
1 adult, Economy
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Find cheap flights from Portland to Australia 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 Australia
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Cheapest flights from Portland to AustraliaExplore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.
Explore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2026.
This Air Canada deal was found by Cheapflights users on 2/16. 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 3/53:15 pm
PDX
- BNE
1 stop23h 30m
Air Canada
Thu 3/199:45 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/16![Air Canada logo]()
$752
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/63:15 pm
PDX
- BNE
1 stop22h 50m
Air Canada
Fri 4/1710:00 am
BNE
- PDX
1 stop25h 30m
Air Canada
Deal found 2/17![Air Canada logo]()
$808
This Air Canada deal was found by Cheapflights users on 2/17. 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 10/317:10 pm
PDX
- BNE
1 stop19h 35m
Air Canada
Sun 11/810:45 am
BNE
- PDX
1 stop16h 40m
Air Canada
Deal found 2/17![Air Canada logo]()
$818
This Air Canada deal was found by Cheapflights users on 2/17. 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 6/13:25 pm
PDX
- BNE
1 stop22h 40m
Air Canada
Mon 6/810:00 am
BNE
- PDX
1 stop21h 45m
Air Canada
Deal found 2/17![Air Canada logo]()
$820
This Air Canada deal was found by Cheapflights users on 2/15. 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
- BNE
2 stops24h 20m
Multiple Airlines
Thu 3/199:45 am
BNE
- PDX
1 stop21h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$822
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/259:50 am
PDX
- BNE
1 stop28h 15m
Air Canada
Sun 5/1010:00 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/17![Air Canada logo]()
$833
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.
Sat 2/219:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Sun 3/110:55 pm
BNE
- PDX
2 stops28h 20m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$839
This BusinessClass deal was found by Cheapflights users on 2/18. 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 10/137:45 pm
PDX
- BNE
1 stop18h 20m
Air New Zealand
Tue 10/275:05 am
BNE
- PDX
2 stops30h 25m
Air New Zealand
Deal found 2/18![Air New Zealand logo]()
$845
This BusinessClass deal was found by Cheapflights users on 2/17. 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.
Sun 8/97:45 pm
PDX
- MEL
2 stops21h 50m
Multiple Airlines
Sat 8/226:00 pm
MEL
- PDX
2 stops42h 06m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$850
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.
Sat 2/217:05 pm
PDX
- BNE
1 stop19h 40m
Air Canada
Sun 3/110:45 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/19![Air Canada logo]()
$855
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.
Fri 5/17:45 pm
PDX
- MEL
2 stops22h 40m
Multiple Airlines
Sun 5/106:00 am
MEL
- PDX
2 stops20h 30m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$855
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:45 pm
PDX
- MEL
2 stops22h 25m
Multiple Airlines
Tue 10/277:10 am
MEL
- PDX
2 stops25h 30m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$870
Best flights from Portland to AustraliaDiscover carefully curated flight deals from Portland to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2026.
Discover carefully curated flight deals from Portland to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 20, 2026.
This Air Canada deal was found by Cheapflights users on 2/15. 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 3/53:15 pm
PDX
- BNE
1 stop23h 30m
Air Canada
Thu 3/199:45 am
BNE
- PDX
1 stop21h 55m
Air Canada
Deal found 2/15![Air Canada logo]()
$804
This Air Canada deal was found by Cheapflights users on 2/15. 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
- BNE
2 stops24h 20m
Multiple Airlines
Thu 3/199:45 am
BNE
- PDX
1 stop21h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$822
This United Airlines deal was found by Cheapflights users on 2/18. 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 3/197:49 pm
PDX
- MEL
1 stop19h 11m
United Airlines
Tue 3/2412:00 pm
MEL
- PDX
1 stop24h 47m
United Airlines
Deal found 2/18![United Airlines logo]()
$917
This Qantas Airways deal was found by Cheapflights users on 2/18. 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 3/85:38 pm
PDX
- OOL
2 stops25h 37m
Qantas Airways
Thu 3/129:20 am
OOL
- PDX
2 stops53h 32m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,228
This Qatar Airways deal was found by Cheapflights users on 2/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:30 am
PDX
- PER
2 stops42h 15m
Qatar Airways
Thu 4/303:40 pm
PER
- PDX
2 stops46h 13m
Qatar Airways
Deal found 2/18![Qatar Airways logo]()
$1,458
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/63:15 pm
PDX
- BNE
1 stop22h 50m
Air Canada
Fri 4/1710:00 am
BNE
- PDX
1 stop25h 30m
Air Canada
Deal found 2/17![Air Canada logo]()
$808
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 5/87:45 pm
PDX
- MEL
2 stops22h 40m
Multiple Airlines
Thu 5/216:00 am
MEL
- PDX
2 stops20h 30m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$872
This Air Canada deal was found by Cheapflights users on 2/18. 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 5/1310:10 am
PDX
- BNE
1 stop27h 55m
Air Canada
Wed 5/2710:00 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/18![Air Canada logo]()
$808
This Air Canada deal was found by Cheapflights users on 2/18. 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 4/237:05 pm
PDX
- MEL
2 stops23h 15m
Multiple Airlines
Fri 5/86:00 am
MEL
- PDX
2 stops25h 45m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$873
This Air Canada deal was found by Cheapflights users on 2/18. 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 5/33:25 pm
PDX
- BNE
1 stop22h 40m
Air Canada
Sun 5/1710:00 am
BNE
- PDX
1 stop21h 45m
Air Canada
Deal found 2/18![Air Canada logo]()
$808
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/259:50 am
PDX
- BNE
1 stop28h 15m
Air Canada
Sun 5/1010:00 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/17![Air Canada logo]()
$833
This Air Canada deal was found by Cheapflights users on 2/17. 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 4/37:05 pm
PDX
- MEL
2 stops23h 15m
Multiple Airlines
Fri 4/106:00 am
MEL
- PDX
2 stops25h 40m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$930
This Cathay Pacific 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:14 am
PDX
- ADL
3 stops42h 41m
Cathay Pacific
Sun 4/1212:00 pm
ADL
- PDX
3 stops45h 00m
Cathay Pacific
Deal found 2/19![Cathay Pacific logo]()
$2,395
This KAYAK deal was found by Cheapflights users on 2/17. 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.
Fri 4/35:38 pm
PDX
- OOL
2 stops28h 57m
Qantas Airways
Fri 4/2410:15 am
OOL
- PDX
2 stops52h 20m
Qantas Airways
Deal found 2/17![Qantas Airways logo]()
$1,241
This oojo deal was found by Cheapflights users on 2/16. 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 5/185:40 pm
PDX
- MEL
1 stop20h 05m
Multiple Airlines
Fri 5/299:45 am
MEL
- PDX
1 stop20h 48m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$945
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 oojo deal was found by Cheapflights users on 2/15. 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 3/162:30 pm
PDX
- MEL
1 stop25h 00m
Multiple Airlines
Mon 3/2312:00 pm
MEL
- PDX
1 stop22h 30m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$945
This oojo deal was found by Cheapflights users on 2/17. 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.
Wed 4/12:37 pm
PDX
- MEL
1 stop22h 08m
Multiple Airlines
Wed 4/89:45 am
MEL
- PDX
1 stop23h 45m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$945
This Qantas Airways deal was found by Cheapflights users on 2/17. 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 3/85:38 pm
PDX
- PER
2 stops29h 52m
Qantas Airways
Wed 3/1110:45 pm
PER
- PDX
2 stops38h 07m
Qantas Airways
Deal found 2/17![Qantas Airways logo]()
$1,442
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/2212:57 pm
PDX
- ADL
2 stops27h 28m
United Airlines
Thu 2/266:00 am
ADL
- PDX
3 stops31h 25m
United Airlines
Deal found 2/17![United Airlines logo]()
$1,599
This Air Canada deal was found by Cheapflights users on 2/16. 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
- AVV
2 stops29h 55m
Multiple Airlines
Sat 5/98:40 pm
AVV
- PDX
2 stops29h 50m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$949
This Qantas Airways deal was found by Cheapflights users on 2/18. 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.
Thu 3/56:25 am
PDX
- PER
2 stops40h 05m
Qantas Airways
Sun 5/311:45 pm
PER
- PDX
2 stops32h 04m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,450
This Air Canada deal was found by Cheapflights users on 2/15. 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 4/273:15 pm
PDX
- SYD
1 stop23h 05m
Air Canada
Wed 5/69:20 am
SYD
- PDX
1 stop26h 45m
Air Canada
Deal found 2/15![Air Canada logo]()
$1,095
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 Qantas Airways deal was found by Cheapflights users on 2/18. 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.
Thu 2/266:25 am
PDX
- PER
2 stops46h 35m
Qantas Airways
Tue 5/1911:45 pm
PER
- PDX
2 stops28h 48m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,450
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 4/269:20 am
SYD
- PDX
1 stop16h 50m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$987
This Qantas Airways deal was found by Cheapflights users on 2/18. 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.
Mon 2/236:25 am
PDX
- PER
2 stops40h 05m
Qantas Airways
Tue 5/1911:45 pm
PER
- PDX
2 stops28h 48m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,450
This Air Canada deal was found by Cheapflights users on 2/15. 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 2/229:50 am
PDX
- ADL
2 stops42h 10m
Air Canada
Thu 2/266:00 am
ADL
- PDX
2 stops31h 00m
Air Canada
Deal found 2/15![Air Canada logo]()
$1,301
This Qantas Airways deal was found by Cheapflights users on 2/18. 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 2/242:30 pm
PDX
- PER
2 stops32h 00m
Qantas Airways
Sun 5/1711:45 pm
PER
- PDX
2 stops36h 50m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,450
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.
Thu 2/262:30 pm
PDX
- SYD
2 stops27h 05m
Multiple Airlines
Tue 3/102:00 pm
SYD
- PDX
2 stops24h 53m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$1,039
Last-minute flights from Portland to AustraliaDiscover last-minute flight deals from Portland to Australia. Data last updated February 20, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Australia. Data last updated February 20, 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.
Sat 2/219:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Sun 3/110:55 pm
BNE
- PDX
2 stops28h 20m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$839
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.
Sat 2/217:05 pm
PDX
- BNE
1 stop19h 40m
Air Canada
Sun 3/110:45 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/19![Air Canada logo]()
$855
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 2/233:20 pm
PDX
- SYD
1 stop23h 15m
Air Canada
Sat 3/711:20 am
SYD
- PDX
1 stop16h 55m
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 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.
Tue 2/246:25 am
PDX
- MEL
1 stop32h 05m
American Airlines
Sat 3/74:05 pm
MEL
- PDX
1 stop22h 11m
American Airlines
Deal found 2/19![American Airlines logo]()
$951
This Air Canada deal was found by Cheapflights users on 2/16. 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 3/53:15 pm
PDX
- BNE
1 stop23h 30m
Air Canada
Thu 3/199:45 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/16![Air Canada logo]()
$752
This Air Canada deal was found by Cheapflights users on 2/15. 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
- BNE
2 stops24h 20m
Multiple Airlines
Thu 3/199:45 am
BNE
- PDX
1 stop21h 55m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$822
This Air Canada deal was found by Cheapflights users on 2/18. 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 3/93:15 pm
PDX
- SYD
1 stop23h 20m
Air Canada
Mon 3/1610:25 am
SYD
- PDX
1 stop16h 50m
Air Canada
Deal found 2/18![Air Canada logo]()
$902
This BusinessClass deal was found by Cheapflights users on 2/18. 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 3/97:05 pm
PDX
- SYD
1 stop19h 30m
Multiple Airlines
Mon 3/168:00 am
SYD
- PDX
2 stops24h 40m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$930
This oojo deal was found by Cheapflights users on 2/15. 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 3/162:30 pm
PDX
- MEL
1 stop25h 00m
Multiple Airlines
Mon 3/2312:00 pm
MEL
- PDX
1 stop22h 30m
Multiple Airlines
Deal found 2/15![Multiple Airlines logo]()
$945
This United Airlines deal was found by Cheapflights users on 2/18. 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 3/197:49 pm
PDX
- MEL
1 stop19h 11m
United Airlines
Tue 3/2412:00 pm
MEL
- PDX
1 stop24h 47m
United Airlines
Deal found 2/18![United Airlines logo]()
$917
This American Airlines deal was found by Cheapflights users on 2/18. 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.
Sat 3/215:38 pm
PDX
- MEL
1 stop21h 52m
American Airlines
Fri 4/39:45 am
MEL
- PDX
1 stop25h 23m
American Airlines
Deal found 2/18![American Airlines logo]()
$952
One-way flights from Portland to AustraliaSearch for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated February 20, 2026.
Search for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated February 20, 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.
Wed 2/257:05 pm
PDX
- SYD
1 stop19h 30m
Air Canada
Deal found 2/19![Air Canada logo]()
$417
This Booking.com deal was found by Cheapflights users on 2/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/179:50 am
PDX
- BNE
1 stop28h 55m
Air Canada
Deal found 2/18![Air Canada logo]()
$433
This Booking.com deal was found by Cheapflights users on 2/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/193:15 pm
PDX
- BNE
1 stop23h 30m
Air Canada
Deal found 2/18![Air Canada logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/1510:08 am
PDX
- BNE
2 stops31h 17m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$446
This Air Canada deal was found by Cheapflights users on 2/18. 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 4/113:15 pm
PDX
- SYD
1 stop23h 05m
Air Canada
Deal found 2/18![Air Canada logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
Mon 3/169:53 am
PDX
- BNE
2 stops31h 32m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/179:48 pm
PDX
- SYD
2 stops44h 47m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/1710:30 am
PDX
- BNE
2 stops31h 05m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
Wed 4/85:49 pm
PDX
- BNE
2 stops23h 46m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 2/18. 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.
Wed 3/185:38 pm
PDX
- BNE
1 stop18h 22m
American Airlines
Deal found 2/18![American Airlines logo]()
$500
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:45 am
PDX
- SYD
2 stops31h 45m
Delta
Deal found 2/19![Delta logo]()
$508
This Delta deal was found by Cheapflights users on 2/18. 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.
Wed 3/185:45 am
PDX
- BNE
2 stops32h 35m
Delta
Deal found 2/18![Delta logo]()
$511
Find flight deals from Portland to Australia
Keep the following information in mind while searching for Portland to Australia flight deals. Data was last updated February 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $752 (Air Canada) |
One-way from | $417 (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 Australia 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 20, 2026.
Use the filters below to find and compare flights from Portland to Australia that are best for you.
Fly from
Portland
Fly to
Australia
Route
Depart
Return
Price
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Thu 3/5
3:15 pm-8:45 am
1 stop23h 30m
Brisbane
Thu 3/19
9:45 am-2:40 pm
1 stop21h 55m
$804
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Mon 4/6
3:15 pm-7:05 am
1 stop22h 50m
Brisbane
Fri 4/17
10:00 am-6:30 pm
1 stop25h 30m
$808
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Wed 5/13
10:10 am-7:05 am
1 stop27h 55m
Brisbane
Wed 5/27
10:00 am-9:30 am
1 stop16h 30m
$808
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Sun 5/3
3:25 pm-7:05 am
1 stop22h 40m
Brisbane
Sun 5/17
10:00 am-2:45 pm
1 stop21h 45m
$808
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Thu 3/5
7:05 pm-1:25 pm
2 stops24h 20m
Brisbane
Thu 3/19
9:45 am-2:40 pm
1 stop21h 55m
$822
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Sat 4/25
9:50 am-7:05 am
1 stop28h 15m
Brisbane
Sun 5/10
10:00 am-9:30 am
1 stop16h 30m
$833
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Fri 5/8
7:45 pm-11:25 am
2 stops22h 40m
Melbourne
Thu 5/21
6:00 am-9:30 am
2 stops20h 30m
$872
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Thu 4/23
7:05 pm-11:20 am
2 stops23h 15m
Melbourne
Fri 5/8
6:00 am-2:45 pm
2 stops25h 45m
$873
PortlandSydney
PDX - SYD
PDXSYD
Portland
Tue 5/5
10:10 am-7:20 am
1 stop28h 10m
Sydney Kingsford Smith
Tue 5/12
9:20 am-9:30 am
1 stop17h 10m
$901
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Thu 3/19
7:49 pm-9:00 am
1 stop19h 11m
Melbourne
Tue 3/24
12:00 pm-6:47 pm
1 stop24h 47m
$917
Showing 1-10 of 60 results
Best time to book a flight from Portland to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Portland with our price prediction graph.
PDX-BNE
PDX-SYD
PDX-MEL
PDX-OOL
PDX-PER
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 Australia
PDX-AU0
PDX-BNE
PDX-SYD
PDX-MEL
PDX-OOL
What is the cheapest month to book a flight from Portland to Australia?
Currently, February is the cheapest month in which you can book a flight from Portland to Australia (average of $504). Flying from Portland to Australia in April is currently the most expensive (average of $918). 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.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated February 20, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and Qantas Airways from Portland to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.0
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 Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Portland to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Australia by cabin class
Find flights from Portland to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Australia flights
Browse other Portland and Australia flight options. Last updated on February 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 7 airlines flying from Portland to Australia
Discover the top 7 airlines that operate flights from Portland to Australia. 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 20, 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$757 | Average$1,374 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$840 | Average$1,136 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$855 | Average$1,058 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$868 | Average$1,207 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$999 | Average$1,182 | FlexibilityNo cancel fee | On-time75% |