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$766+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Jun 1 — Jun 81
Mon 6/1
Mon 6/8
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 May 2, 2026.

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 Alaska Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 6/75:34 pm
PDX
-
ADL
2 stops36h 31m
Multiple Airlines
Thu 6/186:25 am
ADL
-
PDX
2 stops40h 16m
Multiple Airlines
Deal found 4/30$1,342
This oojo deal was found by Cheapflights users on 5/1. 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.
Mon 11/94:59 pm
PDX
-
ADL
2 stops26h 11m
Qantas Airways
Wed 11/184:30 pm
ADL
-
PDX
2 stops25h 54m
Qantas Airways
Deal found 5/1$1,390
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/2610:35 am
PDX
-
ADL
2 stops56h 00m
Multiple Airlines
Tue 6/28:50 am
ADL
-
PDX
2 stops38h 00m
Multiple Airlines
Deal found 4/28$1,416
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 6/75:34 pm
PDX
-
ADL
2 stops46h 01m
Multiple Airlines
Sun 6/1411:50 am
ADL
-
PDX
2 stops25h 30m
Multiple Airlines
Deal found 4/30$1,417
This oojo deal was found by Cheapflights users on 5/1. 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.
Mon 8/35:37 pm
PDX
-
ADL
2 stops25h 08m
Multiple Airlines
Mon 8/107:45 pm
ADL
-
PDX
2 stops34h 29m
Multiple Airlines
Deal found 5/1$1,418
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 6/86:03 pm
PDX
-
ADL
2 stops24h 32m
United Airlines
Tue 6/166:05 am
ADL
-
PDX
2 stops31h 19m
United Airlines
Deal found 4/30$1,419
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 6/711:16 am
PDX
-
ADL
2 stops31h 24m
United Airlines
Mon 6/156:40 am
ADL
-
PDX
2 stops30h 44m
United Airlines
Deal found 4/30$1,422
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 6/96:03 pm
PDX
-
ADL
2 stops24h 22m
United Airlines
Wed 6/176:05 am
ADL
-
PDX
2 stops22h 33m
United Airlines
Deal found 4/30$1,426
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
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 6/85:15 am
PDX
-
ADL
3 stops37h 20m
United Airlines
Mon 6/156:40 am
ADL
-
PDX
2 stops21h 58m
United Airlines
Deal found 4/30$1,433

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 May 2, 2026.

Round-trip from

$1,280
(oojo)

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 May 2, 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

Tue 5/26

10:35 am-11:05 am

2 stops56h 00m

Adelaide

Tue 6/2

8:50 am-6:20 am

2 stops38h 00m

$1,416

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 8/3

5:15 am-11:05 am

3 stops37h 20m

Adelaide

Mon 8/10

6:40 am-4:47 pm

2 stops26h 37m

$1,432

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

Tue 6/9

3:27 pm-9:25 am

2 stops25h 28m

Adelaide

Sat 6/20

5:10 pm-10:27 pm

2 stops45h 47m

$1,515

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 5/26

6:03 pm-11:55 am

3 stops25h 22m

Adelaide

Tue 6/2

7:00 am-4:47 pm

3 stops26h 17m

$2,261

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

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/24

7:00 am-5:45 pm

3 stops42h 15m

Adelaide

Thu 7/2

7:45 pm-11:56 pm

3 stops44h 41m

$2,764

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 6/10

5:37 pm-9:25 am

2 stops23h 18m

Adelaide

Fri 6/19

6:00 am-1:44 pm

2 stops24h 14m

$6,306
Quickest round-trip

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 6/8

5:40 pm-9:25 am

2 stops23h 15m

Adelaide

Thu 6/18

6:00 am-1:44 pm

2 stops24h 14m

$6,306

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 6/11

5:37 pm-9:25 am

2 stops23h 18m

Adelaide

Sat 6/20

7:45 pm-4:47 pm

2 stops37h 32m

$6,313

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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?

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Glenelg

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