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$1,123+ Cheap flights from Oregon to Adelaide (ADL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ADL
mar 4 — mar 111
mer 3/4
mer 3/11
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 febbraio 2, 2026.

This Air Canada deal was found by Cheapflights users on 1/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/177:05 pm
PDX
-
ADL
2 stops24h 05m
Multiple Airlines
mar 3/246:00 am
ADL
-
PDX
2 stops30h 00m
Multiple Airlines
Deal found 1/30$1,123
This oojo deal was found by Cheapflights users on 1/31. 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.
lun 2/99:30 pm
PDX
-
ADL
2 stops44h 15m
Multiple Airlines
gio 2/191:15 pm
ADL
-
PDX
2 stops21h 56m
Multiple Airlines
Deal found 1/31$1,128
This Qantas Airways deal was found by Cheapflights users on 1/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 2/82:57 pm
PDX
-
ADL
2 stops32h 48m
Qantas Airways
gio 2/127:50 am
ADL
-
PDX
2 stops27h 53m
Qantas Airways
Deal found 1/30$1,222
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 3/181:39 pm
PDX
-
ADL
2 stops29h 51m
United Airlines
mer 3/252:15 pm
ADL
-
PDX
1 stop22h 02m
United Airlines
Deal found 2/1$1,382
This United Airlines deal was found by Cheapflights users on 1/31. 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.
lun 2/91:35 pm
PDX
-
ADL
1 stop25h 25m
United Airlines
gio 2/197:15 am
ADL
-
PDX
2 stops26h 03m
United Airlines
Deal found 1/31$1,418
This United Airlines deal was found by Cheapflights users on 1/31. 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.
mar 3/1712:59 pm
BOI
-
ADL
2 stops32h 41m
United Airlines
mar 3/246:10 am
ADL
-
BOI
2 stops32h 19m
United Airlines
Deal found 1/31$1,439
This United Airlines deal was found by Cheapflights users on 1/30. 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.
sab 1/317:05 pm
BOI
-
ADL
1 stop20h 55m
United Airlines
mer 2/49:30 am
ADL
-
BOI
2 stops51h 51m
United Airlines
Deal found 1/30$1,637
This Mytrip deal was found by Cheapflights users on 1/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/1710:49 am
BOI
-
ADL
3 stops32h 31m
Air New Zealand
mar 3/247:00 pm
ADL
-
BOI
2 stops43h 29m
Air New Zealand
Deal found 1/31$1,742
This Cathay Pacific deal was found by Cheapflights users on 2/1. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 2/97:20 am
PDX
-
ADL
3 stops41h 25m
Cathay Pacific
gio 2/196:25 am
ADL
-
PDX
3 stops32h 39m
Cathay Pacific
Deal found 2/1$1,993
This Cathay Pacific deal was found by Cheapflights users on 1/31. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 3/178:16 am
BOI
-
ADL
3 stops40h 59m
Multiple Airlines
mar 3/247:00 pm
ADL
-
BOI
3 stops43h 10m
Multiple Airlines
Deal found 1/31$2,138
This Singapore Airlines deal was found by Cheapflights users on 1/30. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sab 1/3110:15 am
BOI
-
ADL
2 stops53h 05m
Singapore Airlines
mer 2/410:15 am
ADL
-
BOI
3 stops51h 06m
Singapore Airlines
Deal found 1/30$6,772

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 febbraio 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,123
(Air Canada)
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

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 febbraio 2, 2026.
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

mar 3/17

7:05 pm-12:40 pm

2 stops24h 05m

Adelaide

mar 3/24

6:00 am-6:30 pm

2 stops30h 00m

$1,123

PortlandAdelaide

PDX - ADL

PDXADL

Portland

mer 3/18

1:39 pm-1:00 pm

2 stops29h 51m

Adelaide

mer 3/25

2:15 pm-6:47 pm

1 stop22h 02m

$1,382

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

mar 3/17

12:59 pm-2:10 pm

2 stops32h 41m

Adelaide

mar 3/24

6:10 am-9:59 pm

2 stops32h 19m

$1,439

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

mar 3/17

10:49 am-11:50 am

3 stops32h 31m

Adelaide

mar 3/24

7:00 pm-9:59 pm

2 stops43h 29m

$1,742

BoiseAdelaide

BOI - ADL

BOIADL

Boise Air Term. Gowen Fld

mar 3/17

8:16 am-5:45 pm

3 stops40h 59m

Adelaide

mar 3/24

7:00 pm-9:40 pm

3 stops43h 10m

$2,138

PortlandAdelaide

PDX - ADL

PDXADL

Portland

mer 3/18

7:05 am-3:45 pm

3 stops39h 10m

Adelaide

mer 3/25

12:00 pm-9:35 am

2 stops39h 05m

$2,199

PortlandAdelaide

PDX - ADL

PDXADL

Portland

dom 2/22

7:05 am-6:15 am

3 stops52h 40m

$3,476

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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
No data available for this route at this time. Please check back soon.

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 $1,382, United Airlines can have you in Adelaide from Oregon in 29h 51m. 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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