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$653+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap 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 September 16, 2025.

Round-trip from

$1,109
(Trip.com)

One-way from

$653
(Kiwi.com)
From Portland to Adelaide
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One-way flight from Portland to Adelaide
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Find 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 September 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:50 pmPDX - ADL
2 stops27h 55mMultiple Airlines
Thu 11/61:15 pmADL - PDX
2 stops26h 05mMultiple Airlines
Deal found 9/14$1,109
This Ticket deal was found by Cheapflights users on 9/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:09 amPDX - ADL
2 stops31h 36mMultiple Airlines
Wed 11/57:55 pmADL - PDX
2 stops43h 49mMultiple Airlines
Deal found 9/14$1,193
This Fareboom deal was found by Cheapflights users on 9/16. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:30 amPDX - ADL
2 stops51h 15mMultiple Airlines
Thu 1/1511:55 amADL - PDX
2 stops29h 41mMultiple Airlines
Deal found 9/16$1,232
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:09 amPDX - ADL
2 stops31h 36mMultiple Airlines
Fri 11/75:10 pmADL - PDX
2 stops22h 34mMultiple Airlines
Deal found 9/16$1,249
This oojo deal was found by Cheapflights users on 9/15. 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.
Thu 9/255:35 pmPDX - ADL
2 stops30h 10mQantas Airways
Sat 10/184:55 pmADL - PDX
2 stops45h 05mQantas Airways
Deal found 9/15$1,280
This Fareboom deal was found by Cheapflights users on 9/15. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:40 amPDX - ADL
2 stops53h 05mMultiple Airlines
Sat 10/42:30 pmADL - PDX
2 stops24h 30mMultiple Airlines
Deal found 9/15$1,359
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/306:00 amPDX - ADL
3 stops38h 25mUnited Airlines
Thu 11/66:10 amADL - PDX
2 stops30h 56mUnited Airlines
Deal found 9/14$1,403
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/2811:55 pmPDX - ADL
2 stops39h 05mUnited Airlines
Tue 1/138:30 amADL - PDX
2 stops28h 48mUnited Airlines
Deal found 9/15$1,506

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 September 16, 2025.
Use the filters below to find and compare flights from Portland to Adelaide that are best for you.

Fly from

Portland

Fly to

Adelaide

Route

Depart

Return

Price

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 10/30

2:50 pm-12:15 pm

2 stops27h 55m

Adelaide

Thu 11/6

1:15 pm-8:50 pm

2 stops26h 05m

$1,109

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 10/29

7:09 am-8:15 am

2 stops31h 36m

Adelaide

Wed 11/5

7:55 pm-9:14 pm

2 stops43h 49m

$1,193

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 12/24

10:30 am-8:15 am

2 stops51h 15m

Adelaide

Thu 1/15

11:55 am-11:06 pm

2 stops29h 41m

$1,232

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 12/24

2:45 pm-9:30 am

2 stops48h 15m

Adelaide

Thu 1/15

9:30 am-6:48 pm

3 stops51h 48m

$1,249

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 10/31

7:09 am-8:15 am

2 stops31h 36m

Adelaide

Fri 11/7

5:10 pm-9:14 pm

2 stops22h 34m

$1,249

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 9/28

10:40 am-8:15 am

2 stops53h 05m

Adelaide

Sat 10/4

2:30 pm-10:30 pm

2 stops24h 30m

$1,359

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 10/30

6:00 am-1:55 pm

3 stops38h 25m

Adelaide

Thu 11/6

6:10 am-6:36 pm

2 stops30h 56m

$1,403

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

3:45 pm-9:30 am

2 stops47h 15m

Adelaide

Sat 1/31

2:55 pm-12:43 am

1 stop28h 18m

$1,461

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

11:55 pm-9:30 am

2 stops39h 05m

Adelaide

Tue 1/13

7:15 am-2:46 pm

2 stops26h 01m

$1,506

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

11:55 pm-9:30 am

2 stops39h 05m

$707

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Adelaide

What is the cheapest time of day to fly from PDX to ADL?

Find hourly flight availability from Portland to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

One of the essential ways to save on airfare from Portland to Adelaide is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

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 48h 15m. United Airlines provides one of the quickest options available for as low as $1,249. 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.

  • What is the cheapest month to book a flight from Portland to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Portland to Adelaide (average of $1,214). Flying from Portland to Adelaide in December is currently the most expensive (average of $2,057). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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