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$786+ 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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Jul 4 — Jul 111
Sat 7/4
Sat 7/11
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 June 4, 2026.

This FlightHub deal was found by Cheapflights users on 5/30. 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 stops25h 40m
Multiple Airlines
Sun 9/137:00 pm
ADL
-
PDX
2 stops31h 01m
Multiple Airlines
Deal found 5/30$1,085
This FlightHub deal was found by Cheapflights users on 5/30. 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.
Tue 8/113:30 pm
PDX
-
ADL
2 stops27h 10m
Multiple Airlines
Mon 9/147:00 pm
ADL
-
PDX
2 stops31h 01m
Multiple Airlines
Deal found 5/30$1,087
This Air Canada deal was found by Cheapflights users on 5/30. 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 9/148:00 pm
ADL
-
PDX
2 stops35h 21m
Air Canada
Deal found 5/30$1,158
This Air Canada deal was found by Cheapflights users on 5/30. 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 8/97:45 pm
PDX
-
ADL
2 stops29h 55m
Air Canada
Mon 9/147:00 pm
ADL
-
PDX
2 stops36h 21m
Air Canada
Deal found 5/30$1,159
This Air Canada deal was found by Cheapflights users on 5/30. 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
Wed 9/168:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 5/30$1,208
This Air Canada deal was found by Cheapflights users on 5/30. 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 8/97:45 pm
PDX
-
ADL
2 stops22h 55m
Air Canada
Sun 9/138:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 5/30$1,209
This Air Canada deal was found by Cheapflights users on 5/30. 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 8/173:30 pm
PDX
-
ADL
2 stops34h 10m
Air Canada
Sat 9/126:55 pm
ADL
-
PDX
2 stops31h 06m
Air Canada
Deal found 5/30$1,211
This Air Canada deal was found by Cheapflights users on 5/30. 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 8/143:30 pm
PDX
-
ADL
2 stops27h 10m
Air Canada
Sun 9/138:00 pm
ADL
-
PDX
2 stops30h 01m
Air Canada
Deal found 5/30$1,259
This Air Canada deal was found by Cheapflights users on 5/30. 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 8/143:30 pm
PDX
-
ADL
2 stops27h 10m
Air Canada
Sat 9/126:55 pm
ADL
-
PDX
2 stops31h 06m
Air Canada
Deal found 5/30$1,261
This Justfly.com deal was found by Cheapflights users on 5/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:45 pm
PDX
-
ADL
2 stops29h 55m
Multiple Airlines
Sun 9/137:00 pm
ADL
-
PDX
2 stops31h 01m
Multiple Airlines
Deal found 5/30$1,290
This Alaska Airlines deal was found by Cheapflights users on 5/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:46 am
PDX
-
ADL
2 stops35h 39m
Multiple Airlines
Thu 9/102:25 pm
ADL
-
PDX
2 stops22h 51m
Multiple Airlines
Deal found 5/30$1,324
This United Airlines deal was found by Cheapflights users on 5/30. 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.
Wed 8/127:15 pm
PDX
-
ADL
2 stops23h 20m
United Airlines
Wed 9/166:05 am
ADL
-
PDX
2 stops22h 25m
United Airlines
Deal found 5/30$1,338

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 June 4, 2026.

Round-trip from

$1,085
(FlightHub)

One-way from

$786
(United Airlines)
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 June 4, 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

Fri 8/14

7:46 am-11:05 am

2 stops34h 49m

Adelaide

Sun 9/13

6:00 am-8:46 pm

2 stops31h 16m

$1,324

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 8/9

5:32 pm-8:05 am

2 stops46h 03m

Adelaide

Sun 9/13

11:50 am-8:46 pm

2 stops25h 26m

$1,341
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 8/19

7:15 pm-11:05 am

2 stops23h 20m

Adelaide

Tue 9/15

6:00 am-12:00 pm

2 stops22h 30m

$1,345

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 8/15

7:46 am-10:35 pm

2 stops22h 19m

Adelaide

Sun 9/13

6:00 am-8:46 pm

2 stops31h 16m

$1,399

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 7/17

5:37 pm-11:05 am

2 stops24h 58m

Adelaide

Fri 7/24

5:10 pm-11:52 pm

2 stops23h 12m

$1,910

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 8/12

7:00 am-5:45 pm

3 stops42h 15m

Adelaide

Sun 9/13

10:10 am-4:36 pm

3 stops46h 56m

$2,069

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 7/17

5:15 am-10:05 am

3 stops36h 20m

Adelaide

Fri 7/24

6:00 am-10:20 am

2 stops20h 50m

$2,150

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 7/17

7:00 am-1:35 pm

3 stops38h 05m

Adelaide

Fri 7/24

7:45 pm-8:48 pm

3 stops41h 33m

$3,054

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 8/12

7:30 pm-7:00 am

2 stops43h 00m

Adelaide

Sun 9/13

9:45 am-7:36 pm

3 stops50h 21m

$6,506
Cheapest one-way
Quickest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 6/21

1:17 pm-11:05 am

2 stops29h 18m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/30

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 23h 20m. United Airlines provides one of the quickest options available for as low as $1,345. 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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