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$609+ Cheap flights from Oregon 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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Oregon to Adelaide

Cheapest flights from Oregon to Adelaide
Explore the most affordable flight options available from Oregon to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This oojo deal was found by Cheapflights users on 12/18. 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.
Sun 12/286:20 amPDX - ADL
2 stops36h 50mQantas Airways
Tue 1/137:50 amADL - PDX
2 stops24h 21mQantas Airways
Deal found 12/18$1,168
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/287:45 pmPDX - ADL
2 stops23h 55mUnited Airlines
Tue 1/136:00 amADL - PDX
3 stops31h 26mUnited Airlines
Deal found 12/18$1,765

Find flight deals from Oregon to Adelaide

Keep the following information in mind while searching for Oregon to Adelaide flight deals. Data was last updated December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$990
(FlightHub)

One-way from

$609
(Qantas Airways)
Provider with most accurate pricing for Portland-Adelaide flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Adelaide flights.
Search Deals
From Oregon to Adelaide
Search Deals
One-way flight from Oregon to Adelaide
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon 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 December 18, 2025.
Use the filters below to find and compare flights from Oregon to Adelaide that are best for you.

Fly from

Oregon

Fly to

Adelaide

Route

Depart

Return

Price

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 2/9

7:05 pm-7:10 pm

2 stops29h 35m

Adelaide

Thu 2/19

6:10 am-9:15 am

2 stops21h 35m

$990

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 2/19

3:15 pm-4:10 pm

2 stops30h 25m

Adelaide

Mon 2/23

6:10 am-2:40 pm

2 stops27h 00m

$1,084

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 2/26

3:15 pm-4:10 pm

2 stops30h 25m

Adelaide

Mon 3/2

6:55 pm-6:30 pm

2 stops42h 05m

$1,165

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

6:20 am-1:40 pm

2 stops36h 50m

Adelaide

Tue 1/13

6:35 am-1:41 pm

2 stops25h 36m

$1,211

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Sat 2/28

8:16 am-8:10 pm

2 stops42h 24m

Adelaide

Wed 3/4

6:05 am-12:44 pm

2 stops24h 09m

$1,233

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 2/9

7:51 pm-9:30 am

1 stop19h 09m

Adelaide

Thu 2/19

7:15 am-2:48 pm

2 stops26h 03m

$1,410

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Sat 2/28

8:16 am-7:35 pm

2 stops41h 49m

Adelaide

Wed 3/4

3:55 pm-11:00 pm

2 stops48h 35m

$1,425

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

2:30 pm-11:50 am

2 stops26h 50m

Adelaide

Sat 1/31

6:35 am-1:41 pm

2 stops25h 36m

$1,556

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Sat 2/28

7:11 am-1:00 pm

3 stops36h 19m

Adelaide

Wed 3/4

11:55 am-8:55 pm

2 stops26h 30m

$1,648

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Sat 2/28

10:25 am-10:30 pm

3 stops42h 35m

Adelaide

Wed 3/4

7:55 pm-9:29 pm

3 stops43h 04m

$1,767

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 results
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Best time to book a flight from Oregon to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Oregon 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 Oregon to Adelaide

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

Find hourly flight availability from Oregon 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 December 18, 2025.

When flying from Oregon to Adelaide, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Oregon?

    For a flight from Oregon to Adelaide, you will be flying into Adelaide. Adelaide (ADL) is just 4.1 mi from the center of the city.

  • How long is the flight from Oregon to Adelaide?

    For as low as $1,084, Air Canada can have you in Adelaide from Oregon in 30h 25m. There are 8275 mi between Oregon and Adelaide. 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 Oregon to Adelaide that include hotel bookings?

    Yes. In addition to deals on Oregon to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Adelaide.

  • Can I find deals for business class flights from Oregon to Adelaide?

    Yes. Cheapflights offers flight deals from Oregon 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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