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$1,087+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Aug 13 — Aug 201
Thu 8/13
Thu 8/20
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 14, 2026.

This Air Canada deal was found by Cheapflights users on 7/13. 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 8/107:45 pm
PDX
-
ADL
2 stops25h 40m
Air Canada
Sun 8/167:00 pm
ADL
-
PDX
2 stops31h 01m
Air Canada
Deal found 7/13$1,087
This Air Canada deal was found by Cheapflights users on 7/10. 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 stops25h 40m
Air Canada
Mon 8/316:55 pm
ADL
-
PDX
2 stops40h 46m
Air Canada
Deal found 7/10$1,088
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/105:15 am
PDX
-
ADL
3 stops37h 20m
United Airlines
Sun 8/168:00 pm
ADL
-
PDX
2 stops32h 30m
United Airlines
Deal found 7/13$1,390
This Cathay Pacific deal was found by Cheapflights users on 7/10. 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.
Mon 8/247:03 am
PDX
-
ADL
3 stops36h 22m
Cathay Pacific
Mon 8/312:25 pm
ADL
-
PDX
3 stops46h 55m
Cathay Pacific
Deal found 7/10$1,896
This Expedia deal was found by Cheapflights users on 7/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:53 pm
PDX
-
ADL
3 stops45h 32m
Multiple Airlines
Mon 8/315:35 pm
ADL
-
PDX
2 stops46h 54m
Multiple Airlines
Deal found 7/10$1,902
This Cathay Pacific deal was found by Cheapflights users on 7/13. 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.
Mon 8/107:19 am
PDX
-
ADL
3 stops36h 06m
Cathay Pacific
Sun 8/1611:50 am
ADL
-
PDX
3 stops45h 27m
Cathay Pacific
Deal found 7/13$2,184

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 14, 2026.

Round-trip from

$1,087
(Air Canada)
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 14, 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
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/24

7:45 pm-1:55 pm

2 stops25h 40m

Adelaide

Mon 8/31

6:55 pm-7:11 pm

2 stops40h 46m

$1,088

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/10

5:15 am-11:05 am

3 stops37h 20m

Adelaide

Sun 8/16

8:00 pm-12:00 pm

2 stops32h 30m

$1,390

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/24

7:03 am-11:55 am

3 stops36h 22m

Adelaide

Mon 8/31

2:25 pm-8:50 pm

3 stops46h 55m

$1,896

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/24

6:53 pm-8:55 am

3 stops45h 32m

Adelaide

Mon 8/31

5:35 pm-11:59 pm

2 stops46h 54m

$1,902

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/10

7:19 am-11:55 am

3 stops36h 06m

Adelaide

Sun 8/16

11:50 am-4:47 pm

3 stops45h 27m

$2,184

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Sorted by cheapest first

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 25h 40m. Air Canada provides one of the quickest options available for as low as $1,087. The distance from Portland to Adelaide is about 8275 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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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