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$1,082+ Cheap flights from Portland (PDX) to Adelaide (ADL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
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Cheap flight deals from Portland to Adelaide

Cheapest flights from Portland to Adelaide
Explore the most affordable flight options available from Portland to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.

This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:45 pm
PDX
-
ADL
2 stops22h 55m
Multiple Airlines
Mon 8/244:30 pm
ADL
-
PDX
2 stops38h 51m
Multiple Airlines
Deal found 6/28$1,082
This Air Canada deal was found by Cheapflights users on 7/2. 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 8/163:30 pm
PDX
-
ADL
2 stops29h 55m
Multiple Airlines
Sun 8/235:15 pm
ADL
-
PDX
2 stops32h 46m
Multiple Airlines
Deal found 7/2$1,084
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:45 pm
PDX
-
ADL
2 stops25h 40m
Air Canada
Mon 8/248:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 6/28$1,153
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Mon 9/148:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 6/28$1,154
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Mon 8/316:55 pm
ADL
-
PDX
2 stops31h 06m
Air Canada
Deal found 6/28$1,156
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:45 pm
PDX
-
ADL
2 stops23h 35m
Air Canada
Fri 9/259:20 pm
ADL
-
PDX
2 stops28h 41m
Air Canada
Deal found 6/28$1,198
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:45 pm
PDX
-
ADL
2 stops23h 35m
Air Canada
Thu 8/278:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 6/28$1,203
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Mon 9/218:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 6/28$1,204
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Thu 9/36:55 pm
ADL
-
PDX
2 stops36h 26m
Air Canada
Deal found 6/28$1,206
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:45 pm
PDX
-
ADL
2 stops25h 40m
Air Canada
Fri 9/259:20 pm
ADL
-
PDX
2 stops28h 41m
Air Canada
Deal found 6/28$1,248
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:45 pm
PDX
-
ADL
2 stops23h 35m
Air Canada
Fri 9/118:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 6/28$1,253
This Air Canada deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Tue 9/18:00 pm
ADL
-
PDX
2 stops35h 21m
Air Canada
Deal found 6/28$1,254

Find flight deals from Portland to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Adelaide (ADL). 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 July 3, 2026.

Round-trip from

$1,082
(FlightHub)
From Portland to Adelaide
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Adelaide 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 July 3, 2026.
Use the filters below to find and compare flights from Portland to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 8/16

3:30 pm-1:55 pm

2 stops29h 55m

Adelaide

Sun 8/23

5:15 pm-9:31 am

2 stops32h 46m

$1,084

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 7/30

5:32 pm-10:35 pm

2 stops36h 33m

Adelaide

Thu 8/6

8:00 pm-8:50 pm

2 stops41h 20m

$1,300

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 8/20

7:15 pm-1:45 pm

2 stops26h 00m

Adelaide

Sun 8/30

6:05 am-12:00 pm

2 stops22h 25m

$1,414

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 8/21

7:15 pm-10:55 am

2 stops23h 10m

Adelaide

Sun 8/30

6:05 am-12:00 pm

2 stops22h 25m

$1,421

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 8/28

7:15 pm-11:05 am

2 stops23h 20m

Adelaide

Sat 9/5

6:00 am-10:11 am

2 stops20h 41m

$1,471

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 8/20

7:15 pm-1:45 pm

2 stops26h 00m

Adelaide

Sat 8/29

6:00 am-10:11 am

2 stops20h 41m

$1,471
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 8/21

7:15 pm-10:55 am

2 stops23h 10m

Adelaide

Sat 8/29

6:00 am-10:11 am

2 stops20h 41m

$1,477

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 8/16

7:19 am-11:55 am

3 stops36h 06m

Adelaide

Sun 8/23

2:25 pm-8:50 pm

3 stops46h 55m

$1,945

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 8/16

7:00 am-1:40 pm

3 stops38h 10m

Adelaide

Mon 8/24

7:45 pm-11:59 pm

3 stops44h 44m

$2,096
Cheapest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 7/15

9:19 am-8:00 am

3 stops54h 11m

$1,175

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 12 resultsSorted by cheapest first
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Best time to book a flight from Portland to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Portland with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Portland to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Adelaide?

    A quick flight from Portland to Adelaide can take about 26h. United Airlines provides one of the quickest options available for as low as $1,414. The distance from Portland to Adelaide is about 8275 mi.

  • Can I find deals for flights from Portland to Adelaide that include hotel bookings?

    Yes. In addition to deals on Portland to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Adelaide.

  • Can I find deals for business class flights from Portland to Adelaide?

    Yes. Cheapflights offers flight deals from Portland to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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