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$1,117+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
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 30, 2026.

This lol.travel deal was found by Cheapflights users on 7/26. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:33 pm
PDX
-
ADL
2 stops28h 47m
Qantas Airways
Wed 9/166:00 am
ADL
-
PDX
2 stops23h 55m
Qantas Airways
Deal found 7/26$1,117
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/25:15 am
PDX
-
ADL
3 stops37h 10m
United Airlines
Mon 8/177:15 am
ADL
-
PDX
2 stops30h 14m
United Airlines
Deal found 7/26$1,232
This Orbitz deal was found by Cheapflights users on 7/26. 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.
Sat 8/17:00 am
PDX
-
ADL
2 stops56h 35m
Multiple Airlines
Mon 8/1711:50 am
ADL
-
PDX
2 stops25h 28m
Multiple Airlines
Deal found 7/26$1,351
This Qantas Airways deal was found by Cheapflights users on 7/26. 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.
Sat 8/17:00 am
PDX
-
ADL
2 stops56h 35m
Qantas Airways
Sun 8/1612:40 pm
ADL
-
PDX
2 stops27h 46m
Qantas Airways
Deal found 7/26$1,364
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 8/15:15 am
PDX
-
ADL
3 stops37h 10m
United Airlines
Mon 8/177:15 am
ADL
-
PDX
2 stops24h 02m
United Airlines
Deal found 7/26$1,501
This Cathay Pacific deal was found by Cheapflights users on 7/26. 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.
Wed 9/97:03 am
PDX
-
ADL
3 stops42h 12m
Cathay Pacific
Wed 9/162:25 pm
ADL
-
PDX
3 stops46h 41m
Cathay Pacific
Deal found 7/26$1,810
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:15 pm
PDX
-
ADL
2 stops24h 10m
Air New Zealand
Wed 9/166:25 am
ADL
-
PDX
3 stops28h 24m
Air New Zealand
Deal found 7/26$1,891

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 30, 2026.

Round-trip from

$1,117
(lol.travel)
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 30, 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

Wed 9/9

3:33 pm-12:50 pm

2 stops28h 47m

Adelaide

Wed 9/16

6:00 am-1:25 pm

2 stops23h 55m

$1,117

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 1/1

11:52 pm-9:30 am

2 stops39h 08m

Adelaide

Sun 2/28

6:10 am-6:31 pm

2 stops30h 51m

$1,323

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 1/1

10:30 am-5:05 pm

2 stops36h 05m

Adelaide

Sun 2/28

10:00 pm-2:55 pm

2 stops35h 25m

$1,348

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 9/9

7:03 am-5:45 pm

3 stops42h 12m

Adelaide

Wed 9/16

2:25 pm-8:36 pm

3 stops46h 41m

$1,810
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 9/9

7:15 pm-11:55 am

2 stops24h 10m

Adelaide

Wed 9/16

6:25 am-6:19 pm

3 stops28h 24m

$1,891

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 1/1

7:00 am-9:55 am

3 stops32h 25m

Adelaide

Sun 2/28

9:40 pm-9:25 am

2 stops30h 15m

$2,383

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 1/1

5:41 pm-1:45 pm

2 stops25h 34m

Adelaide

Sun 2/28

7:05 am-10:00 pm

2 stops33h 25m

$2,794

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

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 28h 47m. Qantas Airways provides one of the quickest options available for as low as $1,117. 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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