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$737+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
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 24, 2026.

This Air Canada deal was found by Cheapflights users on 7/20. 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 8/183:30 pm
PDX
-
ADL
2 stops27h 50m
Air Canada
Mon 8/248:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 7/20$1,088
This FlightHub deal was found by Cheapflights users on 7/22. 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.
Sat 9/263:30 pm
PDX
-
ADL
2 stops38h 05m
Multiple Airlines
Sun 10/46:00 am
ADL
-
PDX
2 stops21h 01m
Multiple Airlines
Deal found 7/22$1,159
This Air Canada deal was found by Cheapflights users on 7/22. 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 9/53:30 pm
PDX
-
ADL
2 stops28h 50m
Multiple Airlines
Sat 9/125:15 pm
ADL
-
PDX
2 stops38h 01m
Multiple Airlines
Deal found 7/22$1,173
This Air Canada deal was found by Cheapflights users on 7/23. 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 8/67:45 pm
PDX
-
ADL
2 stops27h 40m
Multiple Airlines
Sun 8/95:35 pm
ADL
-
PDX
2 stops37h 46m
Multiple Airlines
Deal found 7/23$1,274
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/65:15 am
PDX
-
ADL
3 stops37h 10m
United Airlines
Sun 8/96:05 am
ADL
-
PDX
2 stops22h 39m
United Airlines
Deal found 7/23$1,721
This Jetabroad deal was found by Cheapflights users on 7/20. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:15 pm
PDX
-
ADL
2 stops24h 10m
Air New Zealand
Mon 8/246:30 pm
ADL
-
PDX
3 stops40h 19m
Air New Zealand
Deal found 7/20$1,988
This Cathay Pacific deal was found by Cheapflights users on 7/22. 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.
Sat 9/266:50 pm
PDX
-
ADL
3 stops46h 05m
Cathay Pacific
Sun 10/412:00 pm
ADL
-
PDX
3 stops46h 15m
Cathay Pacific
Deal found 7/22$2,012
This Cathay Pacific deal was found by Cheapflights users on 7/20. 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.
Tue 8/189:45 pm
PDX
-
ADL
3 stops43h 10m
Cathay Pacific
Mon 8/242:20 pm
ADL
-
PDX
3 stops47h 00m
Cathay Pacific
Deal found 7/20$2,025
This Cathay Pacific deal was found by Cheapflights users on 7/23. 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.
Thu 8/67:00 am
PDX
-
ADL
3 stops38h 05m
Cathay Pacific
Sun 8/97:45 pm
ADL
-
PDX
3 stops41h 33m
Cathay Pacific
Deal found 7/23$3,457
This Malaysia Airlines deal was found by Cheapflights users on 7/22. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:30 pm
PDX
-
ADL
2 stops43h 00m
Malaysia Airlines
Sun 10/410:45 am
ADL
-
PDX
3 stops50h 26m
Malaysia Airlines
Deal found 7/22$3,895

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 24, 2026.

Round-trip from

$1,088
(Air Canada)

One-way from

$737
(Kiwi.com)
From Portland to Adelaide
Search Deals
One-way flight 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 24, 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

Tue 8/18

3:30 pm-11:50 am

2 stops27h 50m

Adelaide

Mon 8/24

8:00 pm-9:31 am

2 stops30h 01m

$1,088

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 8/6

7:45 pm-3:55 pm

2 stops27h 40m

Adelaide

Sun 8/9

5:35 pm-2:51 pm

2 stops37h 46m

$1,274

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 8/6

5:15 am-10:55 am

3 stops37h 10m

Adelaide

Sun 8/9

6:05 am-12:14 pm

2 stops22h 39m

$1,721

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 9/5

7:03 am-5:45 pm

3 stops42h 12m

Adelaide

Sat 9/12

8:50 am-8:54 am

3 stops40h 34m

$1,881

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 8/18

7:15 pm-11:55 am

2 stops24h 10m

Adelaide

Mon 8/24

6:30 pm-6:19 pm

3 stops40h 19m

$1,988

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 9/26

6:50 pm-9:25 am

3 stops46h 05m

Adelaide

Sun 10/4

12:00 pm-4:45 pm

3 stops46h 15m

$2,012

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 8/18

9:45 pm-9:25 am

3 stops43h 10m

Adelaide

Mon 8/24

2:20 pm-8:50 pm

3 stops47h 00m

$2,025

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 8/6

7:00 am-1:35 pm

3 stops38h 05m

Adelaide

Sun 8/9

7:45 pm-8:48 pm

3 stops41h 33m

$3,457

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 9/26

7:30 pm-7:00 am

2 stops43h 00m

Adelaide

Sun 10/4

10:45 am-7:41 pm

3 stops50h 26m

$3,895
Cheapest one-way
Quickest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 9/4

5:56 pm-11:15 am

2 stops24h 49m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

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 27h 50m. Air Canada provides one of the quickest options available for as low as $1,088. 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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