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$550+ Cheap flights from Portland (PDX) to Adelaide (ADL)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Air Canada deal was found by Cheapflights users on 3/6. 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 4/247:05 pm
PDX
-
ADL
2 stops25h 55m
Multiple Airlines
Tue 4/285:15 pm
ADL
-
PDX
2 stops32h 25m
Multiple Airlines
Deal found 3/6$1,021
This Qantas Airways deal was found by Cheapflights users on 3/9. 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.
Fri 4/245:49 pm
PDX
-
ADL
2 stops24h 56m
Qantas Airways
Tue 4/286:30 pm
ADL
-
PDX
2 stops35h 26m
Qantas Airways
Deal found 3/9$1,291
This oojo deal was found by Cheapflights users on 3/7. 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 12/249:30 pm
PDX
-
ADL
2 stops45h 40m
Multiple Airlines
Fri 1/86:30 pm
ADL
-
PDX
2 stops23h 54m
Multiple Airlines
Deal found 3/7$1,453

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 March 10, 2026.

Round-trip from

$1,021
(Air Canada)

One-way from

$550
(Air Canada)
From Portland to Adelaide
Search Deals
One-way flight from Portland to Adelaide
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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 March 10, 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

Fri 4/24

7:05 pm-1:30 pm

2 stops25h 55m

Adelaide

Tue 4/28

5:15 pm-9:10 am

2 stops32h 25m

$1,021

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 4/24

5:49 pm-11:15 am

2 stops24h 56m

Adelaide

Tue 4/28

6:30 pm-1:26 pm

2 stops35h 26m

$1,291
Cheapest one-way
Quickest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 4/20

7:05 pm-1:30 pm

2 stops25h 55m

$550

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 3/25

3:15 pm-10:15 pm

2 stops37h 30m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

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 24h 56m. Qantas Airways provides one of the quickest options available for as low as $1,291. 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

Traveling to a place near Adelaide?

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Glenelg

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