$453+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Mar 5 — Mar 121
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 3, 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 3, 2026.
This Air Canada deal was found by Cheapflights users on 1/31. 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
- BNE
1 stop23h 25m
Air Canada
Thu 4/3010:00 am
BNE
- PDX
1 stop16h 10m
Air Canada
Deal found 1/31![Air Canada logo]()
$859
This Air Canada deal was found by Cheapflights users on 2/3. 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 10/3110:05 am
PDX
- BNE
1 stop28h 40m
Air Canada
Sun 11/810:45 am
BNE
- PDX
1 stop16h 40m
Air Canada
Deal found 2/3![Air Canada logo]()
$867
This Air Canada deal was found by Cheapflights users on 1/31. 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 2/239:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Thu 4/308:40 pm
BNE
- PDX
2 stops29h 50m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$888
This Air Canada deal was found by Cheapflights users on 2/3. 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
Multiple Airlines
Sun 11/86:10 am
BNE
- PDX
2 stops21h 15m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$895
This Air Canada deal was found by Cheapflights users on 2/2. 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
1 stop19h 40m
Air Canada
Thu 3/196:05 am
BNE
- PDX
2 stops25h 35m
Air Canada
Deal found 2/2![Air Canada logo]()
$903
This Air Canada deal was found by Cheapflights users on 2/3. 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 5/310:10 am
PDX
- BNE
1 stop27h 55m
Air Canada
Sun 5/1710:00 am
BNE
- PDX
1 stop26h 05m
Air Canada
Deal found 2/3![Air Canada logo]()
$910
This oojo deal was found by Cheapflights users on 2/3. 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 2/236:25 am
PDX
- SYD
2 stops43h 25m
Qantas Airways
Mon 3/211:20 am
SYD
- PDX
1 stop24h 53m
Qantas Airways
Deal found 2/3![Qantas Airways logo]()
$913
This oojo deal was found by Cheapflights users on 2/2. 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 2/236:25 am
PDX
- SYD
2 stops43h 25m
Qantas Airways
Sat 3/711:20 am
SYD
- PDX
1 stop24h 53m
Qantas Airways
Deal found 2/2![Qantas Airways logo]()
$914
This Priceline deal was found by Cheapflights users on 2/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Thu 3/127:40 pm
BNE
- PDX
1 stop21h 02m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$916
This Air Canada deal was found by Cheapflights users on 2/2. 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 3/196:05 am
BNE
- PDX
2 stops25h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$920
This oojo deal was found by Cheapflights users on 2/1. 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
1 stop30h 00m
Qantas Airways
Tue 3/107:15 pm
SYD
- PDX
2 stops44h 47m
Qantas Airways
Deal found 2/1![Qantas Airways logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:53 am
PDX
- MEL
1 stop27h 52m
Multiple Airlines
Thu 4/301:30 pm
MEL
- PDX
2 stops39h 27m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$922
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 3, 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 3, 2026.
This Air Canada deal was found by Cheapflights users on 2/2. 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
1 stop19h 40m
Air Canada
Thu 3/196:05 am
BNE
- PDX
2 stops25h 35m
Air Canada
Deal found 2/2![Air Canada logo]()
$903
This Air Canada deal was found by Cheapflights users on 2/2. 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 3/196:05 am
BNE
- PDX
2 stops25h 35m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$920
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Fri 2/205:43 pm
PDX
- MEL
1 stop20h 47m
American Airlines
Sat 2/284:05 pm
MEL
- PDX
1 stop26h 22m
American Airlines
Deal found 2/3![American Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:00 am
PDX
- ADL
2 stops34h 00m
United Airlines
Wed 3/112:15 pm
ADL
- PDX
1 stop18h 14m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,102
This Qantas Airways deal was found by Cheapflights users on 2/2. 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 2/102:57 pm
PDX
- ADL
2 stops24h 23m
Qantas Airways
Tue 3/107:50 am
ADL
- PDX
2 stops23h 05m
Qantas Airways
Deal found 2/2![Qantas Airways logo]()
$1,119
This Gurufare deal was found by Cheapflights users on 2/1. 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 2/263:15 pm
PDX
- SYD
1 stop23h 20m
Air New Zealand
Wed 3/1110:20 am
SYD
- PDX
1 stop16h 55m
Air New Zealand
Deal found 2/1![Air New Zealand logo]()
$1,194
This oojo deal was found by Cheapflights users on 2/2. 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 3/41:36 pm
PDX
- PER
2 stops30h 19m
Qatar Airways
Wed 3/1110:45 pm
PER
- PDX
2 stops32h 03m
Qatar Airways
Deal found 2/2![Qatar Airways logo]()
$1,331
This Air Canada deal was found by Cheapflights users on 2/3. 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 5/133:25 pm
PDX
- BNE
1 stop22h 40m
Air Canada
Wed 5/2710:00 am
BNE
- PDX
1 stop16h 30m
Air Canada
Deal found 2/3![Air Canada logo]()
$910
This oojo deal was found by Cheapflights users on 2/3. 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 4/232:50 pm
PDX
- MEL
1 stop22h 55m
Multiple Airlines
Thu 4/309:45 am
MEL
- PDX
1 stop24h 04m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$952
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/195:38 pm
PDX
- MEL
1 stop21h 52m
American Airlines
Tue 3/2412:00 pm
MEL
- PDX
1 stop23h 08m
American Airlines
Deal found 2/3![American Airlines logo]()
$960
This Ovago deal was found by Cheapflights users on 2/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/205:00 pm
PDX
- PER
2 stops46h 55m
Cathay Pacific
Fri 3/278:30 am
PER
- PDX
2 stops30h 28m
Cathay Pacific
Deal found 2/2![Cathay Pacific logo]()
$1,937
This Air Canada deal was found by Cheapflights users on 2/2. 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 5/37:45 pm
PDX
- BNE
1 stop18h 20m
Air Canada
Sun 5/1710:00 am
BNE
- PDX
1 stop21h 45m
Air Canada
Deal found 2/2![Air Canada logo]()
$911
This oojo deal was found by Cheapflights users on 2/3. 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 3/115:39 pm
PDX
- MEL
1 stop21h 51m
Multiple Airlines
Mon 3/1612:00 pm
MEL
- PDX
1 stop22h 41m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$955
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Fri 3/205:38 pm
PDX
- BNE
1 stop18h 22m
American Airlines
Fri 3/277:40 pm
BNE
- PDX
1 stop19h 12m
American Airlines
Deal found 2/3![American Airlines logo]()
$962
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/98:30 am
PDX
- ADL
2 stops30h 30m
United Airlines
Mon 3/92:15 pm
ADL
- PDX
2 stops37h 09m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,102
This oojo deal was found by Cheapflights users on 1/31. 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.
Fri 2/275:39 pm
PDX
- MEL
1 stop20h 51m
Multiple Airlines
Tue 3/1012:00 pm
MEL
- PDX
1 stop22h 41m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$955
This American Airlines deal was found by Cheapflights users on 2/1. 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 4/911:48 am
PDX
- MEL
2 stops25h 57m
American Airlines
Mon 4/201:35 pm
MEL
- PDX
1 stop27h 19m
American Airlines
Deal found 2/1![American Airlines logo]()
$964
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/127:10 am
PDX
- ADL
2 stops31h 50m
United Airlines
Mon 3/92:15 pm
ADL
- PDX
2 stops24h 25m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,152
This oojo deal was found by Cheapflights users on 2/2. 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 4/65:49 pm
PDX
- BNE
1 stop18h 11m
Multiple Airlines
Fri 4/178:35 pm
BNE
- PDX
1 stop20h 23m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$958
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/113:10 pm
PDX
- MEL
2 stops24h 20m
American Airlines
Mon 3/1612:00 pm
MEL
- PDX
1 stop27h 52m
American Airlines
Deal found 2/3![American Airlines logo]()
$964
This KAYAK deal was found by Cheapflights users on 2/3. 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 4/247:00 am
OOL
- PDX
2 stops31h 35m
Qantas Airways
Deal found 2/3![Qantas Airways logo]()
$1,358
This Air Canada deal was found by Cheapflights users on 2/1. 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 stop22h 31m
Air Canada
Deal found 2/1![Air Canada logo]()
$1,136
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:47 am
PDX
- ADL
2 stops28h 13m
United Airlines
Sat 3/72:55 pm
ADL
- PDX
2 stops38h 26m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,152
This Air Canada deal was found by Cheapflights users on 2/3. 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 5/123:25 pm
PDX
- BNE
1 stop22h 40m
Multiple Airlines
Mon 5/188:50 pm
BNE
- PDX
2 stops29h 40m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$961
This American Airlines deal was found by Cheapflights users on 2/3. 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 2/218:30 am
PDX
- BNE
2 stops26h 30m
American Airlines
Sun 3/15:10 pm
BNE
- PDX
1 stop22h 48m
American Airlines
Deal found 2/3![American Airlines logo]()
$966
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/113:45 pm
PDX
- ADL
2 stops47h 15m
United Airlines
Wed 3/112:15 pm
ADL
- PDX
1 stop26h 19m
United Airlines
Deal found 2/2![United Airlines logo]()
$1,152
This Air Canada deal was found by Cheapflights users on 2/3. 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 2/223:15 pm
PDX
- SYD
1 stop23h 20m
Air Canada
Mon 3/211:20 am
SYD
- PDX
1 stop26h 10m
Air Canada
Deal found 2/3![Air Canada logo]()
$1,163
This FlightHub deal was found by Cheapflights users on 2/1. 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.
Thu 4/97:05 pm
PDX
- MEL
2 stops23h 20m
Multiple Airlines
Mon 4/206:00 am
MEL
- PDX
2 stops20h 10m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$962
This American Airlines deal was found by Cheapflights users on 2/3. 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 5/911:48 am
PDX
- BNE
2 stops24h 12m
American Airlines
Sat 5/238:35 pm
BNE
- PDX
1 stop17h 54m
American Airlines
Deal found 2/3![American Airlines logo]()
$966
This Qatar Airways deal was found by Cheapflights users on 2/2. 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.
Sun 2/159:19 pm
PDX
- PER
2 stops46h 36m
Qatar Airways
Wed 2/1810:45 pm
PER
- PDX
2 stops39h 56m
Qatar Airways
Deal found 2/2![Qatar Airways logo]()
$1,611
Last-minute flights from Portland to AustraliaDiscover last-minute flight deals from Portland to Australia. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Australia. Data last updated February 3, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 1/31. 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 2/209:50 am
PDX
- BNE
1 stop28h 55m
Air Canada
Tue 4/2810:00 am
BNE
- PDX
1 stop16h 10m
Air Canada
Deal found 1/31![Air Canada logo]()
$944
This Air Canada deal was found by Cheapflights users on 1/31. 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
- BNE
1 stop23h 25m
Air Canada
Thu 4/3010:00 am
BNE
- PDX
1 stop16h 10m
Air Canada
Deal found 1/31![Air Canada logo]()
$859
This Air Canada deal was found by Cheapflights users on 1/31. 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 2/239:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Thu 4/308:40 pm
BNE
- PDX
2 stops29h 50m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$888
This oojo deal was found by Cheapflights users on 2/3. 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 2/236:25 am
PDX
- SYD
2 stops43h 25m
Qantas Airways
Mon 3/211:20 am
SYD
- PDX
1 stop24h 53m
Qantas Airways
Deal found 2/3![Qantas Airways logo]()
$913
This oojo deal was found by Cheapflights users on 2/2. 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 2/236:25 am
PDX
- SYD
2 stops43h 25m
Qantas Airways
Sat 3/711:20 am
SYD
- PDX
1 stop24h 53m
Qantas Airways
Deal found 2/2![Qantas Airways logo]()
$914
This Air Canada deal was found by Cheapflights users on 1/31. 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 2/239:50 am
PDX
- BNE
1 stop28h 55m
Air Canada
Tue 4/1410:00 am
BNE
- PDX
1 stop25h 30m
Air Canada
Deal found 1/31![Air Canada logo]()
$942
This oojo deal was found by Cheapflights users on 2/1. 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
1 stop30h 00m
Qantas Airways
Tue 3/107:15 pm
SYD
- PDX
2 stops44h 47m
Qantas Airways
Deal found 2/1![Qantas Airways logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Fri 2/277:38 pm
PDX
- SYD
1 stop40h 47m
Multiple Airlines
Wed 3/112:00 pm
SYD
- PDX
2 stops39h 52m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$948
This Air Canada deal was found by Cheapflights users on 2/1. 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 2/1![Air Canada logo]()
$868
This FlightHub deal was found by Cheapflights users on 2/1. 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.
Thu 3/57:05 pm
PDX
- BNE
2 stops24h 20m
Multiple Airlines
Thu 3/199:45 am
BNE
- PDX
1 stop25h 45m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$896
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Fri 3/610:08 am
PDX
- MEL
1 stop28h 22m
Multiple Airlines
Fri 3/131:55 pm
MEL
- PDX
2 stops39h 57m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$936
This Priceline deal was found by Cheapflights users on 2/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:50 am
PDX
- BNE
1 stop28h 55m
Multiple Airlines
Thu 3/127:40 pm
BNE
- PDX
1 stop21h 02m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$916
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 3, 2026.
Search for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/910:08 am
PDX
- BNE
2 stops31h 17m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 4/199:53 am
PDX
- BNE
1 stop26h 07m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$491
This American Airlines deal was found by Cheapflights users on 2/3. 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 3/91:52 pm
PDX
- BNE
1 stop22h 38m
American Airlines
Deal found 2/3![American Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/32:30 pm
PDX
- SYD
1 stop21h 55m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$524
This Air Canada deal was found by Cheapflights users on 2/1. 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 3/183:15 pm
PDX
- SYD
1 stop23h 20m
Air Canada
Deal found 2/1![Air Canada logo]()
$559
This Air Canada deal was found by Cheapflights users on 2/1. 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 3/49:50 am
PDX
- SYD
1 stop28h 45m
Air Canada
Deal found 2/1![Air Canada logo]()
$563
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/47:10 am
PDX
- SYD
2 stops31h 05m
United Airlines
Deal found 2/2![United Airlines logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/188:46 pm
PDX
- SYD
3 stops45h 49m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$598
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Fri 2/207:57 pm
PDX
- PER
2 stops40h 18m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$704
This Turkish Airlines deal was found by Cheapflights users on 2/2. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:16 am
PDX
- SYD
3 stops41h 04m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$974
This AranGrant deal was found by Cheapflights users on 2/1. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/35:38 pm
PDX
- SYD
1 stop20h 52m
Qantas Airways
Deal found 2/1![Qantas Airways logo]()
$1,324
This oojo deal was found by Cheapflights users on 2/3. 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 4/222:50 pm
PDX
- SYD
1 stop23h 40m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,331
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 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $859 (Air Canada) |
One-way from | $453 (Kiwi.com) |
Popular in | December |
Cheapest in | June |
Average price | $1,148 |
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 3, 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
7:05 pm-8:45 am
1 stop19h 40m
Brisbane
Thu 3/19
6:05 am-2:40 pm
2 stops25h 35m
$903
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Wed 5/13
3:25 pm-7:05 am
1 stop22h 40m
Brisbane
Wed 5/27
10:00 am-9:30 am
1 stop16h 30m
$910
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Sun 5/3
7:45 pm-7:05 am
1 stop18h 20m
Brisbane
Sun 5/17
10:00 am-2:45 pm
1 stop21h 45m
$911
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Thu 3/5
7:05 pm-1:25 pm
2 stops24h 20m
Brisbane
Thu 3/19
6:05 am-2:40 pm
2 stops25h 35m
$920
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Thu 4/23
2:50 pm-6:45 am
1 stop22h 55m
Melbourne
Thu 4/30
9:45 am-4:49 pm
1 stop24h 04m
$952
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Wed 3/11
5:39 pm-9:30 am
1 stop21h 51m
Melbourne
Mon 3/16
12:00 pm-4:41 pm
1 stop22h 41m
$955
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Fri 2/27
5:39 pm-9:30 am
1 stop20h 51m
Melbourne
Tue 3/10
12:00 pm-4:41 pm
1 stop22h 41m
$955
PortlandBrisbane
PDX - BNE
PDXBNE
Portland
Mon 4/6
5:49 pm-5:00 am
1 stop18h 11m
Brisbane
Fri 4/17
8:35 pm-11:58 pm
1 stop20h 23m
$958
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Fri 2/20
5:43 pm-9:30 am
1 stop20h 47m
Melbourne
Sat 2/28
4:05 pm-11:27 pm
1 stop26h 22m
$959
PortlandMelbourne
PDX - MEL
PDXMEL
Portland
Thu 3/19
5:38 pm-9:30 am
1 stop21h 52m
Melbourne
Tue 3/24
12:00 pm-5:08 pm
1 stop23h 08m
$960
Showing 1-10 of 43 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-PER
PDX-ADL
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-PER
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 3, 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.
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Overall
8.0
Crew
8.5
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top regions
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 3, 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 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$1,092 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$550 | Average$1,157 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$757 | Average$1,403 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$840 | Average$1,132 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$855 | Average$1,058 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$872 | Average$1,153 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$999 | Average$1,183 | FlexibilityNo cancel fee | On-time75% |