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$663+ 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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
May 27 — Jun 31
Wed 5/27
Wed 6/3
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 April 27, 2026.

This Aunt Betty deal was found by Cheapflights users on 4/22. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:00 am
PDX
-
ADL
2 stops31h 40m
Multiple Airlines
Sat 6/136:00 am
ADL
-
PDX
2 stops40h 41m
Multiple Airlines
Deal found 4/22$1,260
This oojo deal was found by Cheapflights users on 4/27. 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.
Wed 6/102:45 pm
PDX
-
ADL
2 stops26h 10m
Multiple Airlines
Wed 6/171:25 pm
ADL
-
PDX
2 stops25h 05m
Multiple Airlines
Deal found 4/27$1,280
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:50 pm
PDX
-
ADL
2 stops26h 05m
Multiple Airlines
Mon 6/16:00 am
ADL
-
PDX
2 stops24h 01m
Multiple Airlines
Deal found 4/23$1,291
This SmartFares deal was found by Cheapflights users on 4/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:20 am
PDX
-
ADL
2 stops21h 45m
Multiple Airlines
Mon 8/317:10 pm
ADL
-
PDX
2 stops51h 34m
Multiple Airlines
Deal found 4/23$1,300
This SmartFares deal was found by Cheapflights users on 4/23. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:35 am
PDX
-
ADL
2 stops51h 10m
Multiple Airlines
Sat 11/142:45 pm
ADL
-
PDX
2 stops24h 35m
Multiple Airlines
Deal found 4/23$1,318
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:50 pm
PDX
-
ADL
2 stops47h 35m
Multiple Airlines
Sat 10/315:10 pm
ADL
-
PDX
2 stops21h 10m
Multiple Airlines
Deal found 4/22$1,341
This Aunt Betty deal was found by Cheapflights users on 4/26. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:46 am
PDX
-
ADL
2 stops22h 19m
Multiple Airlines
Thu 6/1812:40 pm
ADL
-
PDX
2 stops34h 01m
Multiple Airlines
Deal found 4/26$1,388
This oojo deal was found by Cheapflights users on 4/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:30 pm
PDX
-
ADL
2 stops28h 00m
Qantas Airways
Sat 11/147:05 am
ADL
-
PDX
2 stops27h 52m
Qantas Airways
Deal found 4/23$1,427
This United Airlines deal was found by Cheapflights users on 4/27. 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 6/105:15 am
PDX
-
ADL
3 stops37h 20m
United Airlines
Wed 6/176:05 am
ADL
-
PDX
2 stops31h 19m
United Airlines
Deal found 4/27$1,432

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 April 27, 2026.

Round-trip from

$1,260
(Aunt Betty)

One-way from

$663
(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 April 27, 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

Sat 6/6

8:00 am-8:10 am

2 stops31h 40m

Adelaide

Sat 6/13

6:00 am-6:11 am

2 stops40h 41m

$1,260

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 8/28

8:20 am-10:35 pm

2 stops21h 45m

Adelaide

Mon 8/31

7:10 pm-6:14 am

2 stops51h 34m

$1,300

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 6/11

5:30 pm-10:35 pm

3 stops36h 35m

Adelaide

Thu 6/18

2:25 pm-6:11 am

2 stops32h 16m

$1,423
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/10

5:15 am-11:05 am

3 stops37h 20m

Adelaide

Wed 6/17

6:05 am-8:54 pm

2 stops31h 19m

$1,432

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/10

9:19 am-9:25 am

3 stops31h 36m

Adelaide

Wed 6/17

7:45 pm-11:56 pm

3 stops44h 41m

$2,532
Cheapest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/10

7:00 am-10:00 pm

3 stops46h 30m

$663
Quickest one-way

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/10

3:30 pm-11:50 am

2 stops27h 50m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

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 37h 20m. United Airlines provides one of the quickest options available for as low as $1,432. 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?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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