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$666+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 11, 2025.

Round-trip from

$1,236
(Gotogate)

One-way from

$666
(FlightHub)
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 11, 2025.

This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/263:15 pmPDX - ADL
2 stops33h 25mMultiple Airlines
Sun 11/25:10 amADL - PDX
2 stops21h 35mMultiple Airlines
Deal found 9/11$1,236
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:00 pmPDX - ADL
2 stops31h 25mMultiple Airlines
Sat 11/156:10 amADL - PDX
2 stops27h 05mMultiple Airlines
Deal found 9/10$1,259
This Air Canada deal was found by Cheapflights users on 9/10. 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 10/257:40 pmPDX - ADL
2 stops33h 20mAir Canada
Sat 11/16:10 amADL - PDX
2 stops20h 35mAir Canada
Deal found 9/10$1,269
This FlightHub deal was found by Cheapflights users on 9/10. 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 10/72:30 pmPDX - ADL
2 stops26h 20mQantas Airways
Tue 10/2812:35 pmADL - PDX
2 stops25h 45mQantas Airways
Deal found 9/10$1,349
This Jetabroad deal was found by Cheapflights users on 9/10. 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.
Sat 10/252:52 pmPDX - ADL
2 stops26h 33mMultiple Airlines
Sat 11/15:10 pmADL - PDX
3 stops43h 56mMultiple Airlines
Deal found 9/10$1,368
This BYOjet deal was found by Cheapflights users on 9/11. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:00 pmPDX - ADL
2 stops29h 40mAir Canada
Sun 11/25:00 amADL - PDX
3 stops27h 15mAir Canada
Deal found 9/11$1,439
This United Airlines deal was found by Cheapflights users on 9/11. 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 12/2811:59 pmPDX - ADL
2 stops39h 01mUnited Airlines
Tue 1/137:15 amADL - PDX
2 stops23h 48mUnited Airlines
Deal found 9/11$1,505
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 11/810:05 amPDX - ADL
2 stops32h 25mUnited Airlines
Sat 11/156:00 amADL - PDX
3 stops35h 21mUnited Airlines
Deal found 9/10$1,520

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 11, 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

Sun 10/26

3:15 pm-6:10 pm

2 stops33h 25m

Adelaide

Sun 11/2

5:10 am-9:15 am

2 stops21h 35m

$1,236

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 10/25

7:40 pm-10:30 pm

2 stops33h 20m

Adelaide

Sat 11/1

6:10 am-9:15 am

2 stops20h 35m

$1,269

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Tue 10/7

2:30 pm-10:20 am

2 stops26h 20m

Adelaide

Tue 10/28

12:35 pm-8:50 pm

2 stops25h 45m

$1,349

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 10/25

2:52 pm-10:55 am

2 stops26h 33m

Adelaide

Sat 11/1

5:10 pm-7:36 pm

3 stops43h 56m

$1,368

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 10/26

7:00 pm-6:10 pm

2 stops29h 40m

Adelaide

Sun 11/2

5:00 am-2:45 pm

3 stops27h 15m

$1,439

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

11:59 pm-9:30 am

2 stops39h 01m

Adelaide

Tue 1/13

8:30 am-12:33 pm

2 stops22h 33m

$1,505

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 11/8

10:05 am-1:00 pm

2 stops32h 25m

Adelaide

Sat 11/15

6:00 am-10:51 pm

3 stops35h 21m

$1,520

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 9/17

2:50 pm-12:05 pm

2 stops28h 45m

$666

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

11:55 pm-9:30 am

2 stops39h 05m

$707

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 9/17

9:30 pm-7:00 pm

3 stops53h 00m

$759

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 13 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 11, 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 26h 20m. Air Canada provides one of the quickest options available for as low as $1,349. The distance from Portland to Adelaide is about 8275 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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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