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$738+ 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
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This Travelocity deal was found by Cheapflights users on 10/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:00 pmPDX - ADL
2 stops33h 00mAir Canada
Wed 12/36:10 amADL - PDX
2 stops30h 50mAir Canada
Deal found 10/27$1,216
This Qantas Airways deal was found by Cheapflights users on 10/29. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:50 pmPDX - ADL
2 stops24h 30mMultiple Airlines
Wed 11/1912:35 pmADL - PDX
2 stops23h 07mMultiple Airlines
Deal found 10/29$1,350
This FlightHub deal was found by Cheapflights users on 10/29. 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.
Sun 12/284:26 pmPDX - ADL
2 stops26h 44mQantas Airways
Tue 1/132:30 pmADL - PDX
2 stops24h 50mQantas Airways
Deal found 10/29$1,466
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/2811:55 pmPDX - ADL
2 stops39h 05mUnited Airlines
Tue 1/137:15 amADL - PDX
2 stops29h 56mUnited Airlines
Deal found 10/30$1,513
This oojo deal was found by Cheapflights users on 10/27. 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.
Fri 12/125:41 pmPDX - ADL
2 stops29h 34mQantas Airways
Fri 12/198:00 pmADL - PDX
2 stops39h 41mQantas Airways
Deal found 10/27$1,536
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/121:00 pmPDX - ADL
3 stops51h 25mUnited Airlines
Wed 11/196:10 amADL - PDX
2 stops30h 56mUnited Airlines
Deal found 10/29$1,734
This Jetabroad deal was found by Cheapflights users on 10/27. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/261:00 pmPDX - ADL
2 stops27h 25mAir New Zealand
Wed 12/36:00 amADL - PDX
3 stops31h 00mAir New Zealand
Deal found 10/27$1,948
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/12:40 pmBOI - ADL
2 stops38h 20mUnited Airlines
Mon 12/292:55 pmADL - BOI
1 stop21h 48mUnited Airlines
Deal found 10/29$6,051
This business-class.com deal was found by Cheapflights users on 10/29. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:59 amBOI - ADL
3 stops34h 11mMultiple Airlines
Mon 12/294:10 pmADL - BOI
3 stops24h 57mMultiple Airlines
Deal found 10/29$6,602

Cheap flight deals from Oregon to Adelaide

Keep the following information in mind while searching for Oregon to Adelaide flight deals. Data was last updated October 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,211
(United Airlines)

One-way from

$738
(United Airlines)
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 October 30, 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

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

10:48 am-9:30 am

1 stop29h 12m

Adelaide

Sat 2/21

2:55 pm-11:38 pm

1 stop26h 13m

$1,212

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 11/26

7:00 pm-10:30 pm

2 stops33h 00m

Adelaide

Wed 12/3

6:10 am-6:30 pm

2 stops30h 50m

$1,216

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

4:26 pm-1:40 pm

2 stops26h 44m

Adelaide

Tue 1/13

2:30 pm-8:50 pm

2 stops24h 50m

$1,466

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 12/28

11:55 pm-9:30 am

2 stops39h 05m

Adelaide

Tue 1/13

7:15 am-6:41 pm

2 stops29h 56m

$1,513

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

2:30 pm-4:25 pm

2 stops31h 25m

Adelaide

Sat 1/31

6:35 am-5:52 pm

2 stops29h 47m

$1,520

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Fri 12/12

5:41 pm-5:45 pm

2 stops29h 34m

Adelaide

Fri 12/19

8:00 pm-5:11 pm

2 stops39h 41m

$1,536

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sun 1/11

12:59 pm-9:30 am

2 stops50h 01m

Adelaide

Sat 1/31

2:55 pm-2:46 pm

1 stop18h 21m

$1,689

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Wed 11/12

5:42 pm-6:15 pm

3 stops30h 03m

Adelaide

Wed 11/19

7:00 pm-4:50 pm

3 stops40h 20m

$1,711

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Wed 2/11

10:28 am-9:30 am

2 stops53h 32m

Adelaide

Sun 2/15

6:10 am-8:55 pm

2 stops32h 15m

$1,733

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

Mon 2/2

8:10 am-5:45 pm

3 stops40h 05m

Adelaide

Sat 2/21

6:05 am-12:04 pm

3 stops47h 29m

$2,063

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October 30, 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 $1,466, United Airlines can have you in Adelaide from Oregon in 26h 44m. 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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