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Cheap flights from Oregon to Adelaide from $1,009

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Adelaide departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Oregon to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:30 pm - 11:50 amPDX  Portland-ADL Adelaide
27h 50m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
9:20 pm - 2:46 pmADL  Adelaide-PDX Portland
33h 56m2 stops Brisbane Vancouver Intl
$1,009Air Canada
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
7:10 pm - 4:20 pmPDX  Portland-ADL Adelaide
26h 40m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
6:00 am - 9:26 amADL  Adelaide-PDX Portland
21h 56m2 stops Sydney Kingsford Smith Vancouver Intl
$1,052Multiple Airlines
Mon, Feb 1 - Sat, Feb 27
Air Canada Logo
7:45 pm - 1:55 pmPDX  Portland-ADL Adelaide
25h 40m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
9:20 pm - 9:31 amADL  Adelaide-PDX Portland
28h 41m2 stops Brisbane Vancouver Intl
$1,084Air Canada
Sun, Sep 20 - Sun, Sep 27
Air Canada Logo
7:10 pm - 6:10 pmPDX  Portland-ADL Adelaide
29h 30m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 3:41 pmADL  Adelaide-PDX Portland
27h 01m2 stops Brisbane Vancouver Intl
$1,150Air Canada
Wed, Oct 28 - Sun, Nov 1
Air Canada Logo
7:10 pm - 6:10 pmPDX  Portland-ADL Adelaide
29h 30m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 3:41 pmADL  Adelaide-PDX Portland
27h 01m2 stops Brisbane Vancouver Intl
$1,151Air Canada
Wed, Oct 28 - Sun, Nov 1
Air Canada Logo
7:10 pm - 6:10 pmPDX  Portland-ADL Adelaide
29h 30m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 3:41 pmADL  Adelaide-PDX Portland
27h 01m2 stops Brisbane Vancouver Intl
$1,152Air Canada
Wed, Oct 28 - Sun, Nov 1
Multiple Airlines Logo
5:35 pm - 10:35 pmPDX  Portland-ADL Adelaide
36h 30m2 stops Honolulu Sydney Kingsford Smith
Multiple Airlines Logo
12:40 pm - 8:50 pmADL  Adelaide-PDX Portland
24h 40m2 stops Sydney Kingsford Smith Honolulu
$1,288Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
8:00 am - 10:35 pmPDX  Portland-ADL Adelaide
22h 05m2 stops Honolulu Sydney Kingsford Smith
Multiple Airlines Logo
12:00 pm - 8:50 pmADL  Adelaide-PDX Portland
25h 20m2 stops Sydney Kingsford Smith Honolulu
$1,302Multiple Airlines
Sat, Sep 5 - Fri, Sep 11
Multiple Airlines Logo
2:30 pm - 10:55 amPDX  Portland-ADL Adelaide
25h 55m2 stops Los Angeles Auckland Intl
Multiple Airlines Logo
8:05 pm - 8:31 pmADL  Adelaide-PDX Portland
42h 56m3 stops Sydney Kingsford Smith Auckland Intl Los Angeles
$1,393Multiple Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
7:49 pm - 9:30 amPDX  Portland-ADL Adelaide
19h 11m1 stop San Francisco
United Airlines Logo
5:05 pm - 12:25 pmADL  Adelaide-PDX Portland
37h 50m2 stops Sydney Kingsford Smith San Francisco
$1,473United Airlines
Mon, Feb 1 - Sat, Feb 27

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United Airlines flights from Oregon to Adelaide

Our best United Airlines deals on Oregon to Adelaide flight tickets
United Airlines
Feb 1
PDX7:49 pmPortland
19h 11m
1 stop
ADL9:30 amAdelaide
Feb 27
ADL5:05 pmAdelaide
37h 50m
2 stops
PDX12:25 pmPortland
$1,473
United Airlines
Oct 31
BOI7:10 pmBoise Air Term. Gowen Fld
24h 20m
2 stops
ADL12:00 pmAdelaide
Nov 4
ADL6:10 amAdelaide
28h 02m
2 stops
BOI4:42 pmBoise Air Term. Gowen Fld
$1,682
United Airlines
Dec 7
PDX1:39 pmPortland
32h 11m
2 stops
ADL4:20 pmAdelaide
Dec 11
ADL8:40 amAdelaide
22h 15m
2 stops
PDX12:25 pmPortland
$1,685

Qantas Airways flights from Oregon to Adelaide

Our best Qantas Airways deals on Oregon to Adelaide flight tickets
Qantas Airways
Sep 30
PDX6:30 amPortland
36h 55m
2 stops
ADL11:55 amAdelaide
Oct 6
ADL2:20 pmAdelaide
49h 59m
2 stops
PDX10:49 pmPortland
$1,578
Qantas Airways
Sep 29
PDX12:01 pmPortland
30h 34m
3 stops
ADL11:05 amAdelaide
Oct 4
ADL2:25 pmAdelaide
25h 11m
2 stops
PDX10:06 pmPortland
$1,980

momondo 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, momondo users made 832,500 searches. Data last updated August 8, 2026.
Use the filters below to find and compare flights from Oregon to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Sun 9/20

3:30 pm-11:50 am

2 stops27h 50m

Adelaide

Sun 9/27

9:20 pm-2:46 pm

2 stops33h 56m

$1,009

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Mon 2/1

7:10 pm-4:20 pm

2 stops26h 40m

Adelaide

Sat 2/27

6:00 am-9:26 am

2 stops21h 56m

$1,052

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Sun 9/20

7:45 pm-1:55 pm

2 stops25h 40m

Adelaide

Sun 9/27

9:20 pm-9:31 am

2 stops28h 41m

$1,084

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Wed 10/28

7:10 pm-6:10 pm

2 stops29h 30m

Adelaide

Sun 11/1

6:10 am-3:41 pm

2 stops27h 01m

$1,150

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Wed 10/28

7:10 pm-6:10 pm

2 stops29h 30m

Adelaide

Sun 11/1

6:10 am-3:41 pm

2 stops27h 01m

$1,151

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Wed 10/28

7:10 pm-6:10 pm

2 stops29h 30m

Adelaide

Sun 11/1

6:10 am-3:41 pm

2 stops27h 01m

$1,152

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Thu 9/3

5:35 pm-10:35 pm

2 stops36h 30m

Adelaide

Thu 9/10

12:40 pm-8:50 pm

2 stops24h 40m

$1,288
Quickest round-trip

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Sat 9/5

8:00 am-10:35 pm

2 stops22h 05m

Adelaide

Fri 9/11

12:00 pm-8:50 pm

2 stops25h 20m

$1,302

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Mon 12/7

2:30 pm-10:55 am

2 stops25h 55m

Adelaide

Fri 12/11

8:05 pm-8:31 pm

3 stops42h 56m

$1,393

PortlandAdelaide

PDX Portland - ADL Adelaide

PDXADL

Portland

Mon 2/1

7:49 pm-9:30 am

1 stop19h 11m

Adelaide

Sat 2/27

5:05 pm-12:25 pm

2 stops37h 50m

$1,473

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Oregon to Adelaide flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Adelaide

Fastest flight time

22h 05m

Direct flights

None
The fastest flight from Oregon to Adelaide takes 22h 05m
There are no direct flights from Oregon to Adelaide. There are no popular flight routes from Oregon to Adelaide.
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Frequently asked questions about flying from Oregon to Adelaide

  • When did momondo last update prices for flights from Oregon to Adelaide Airport?

    Prices for flights from Oregon to Adelaide Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Oregon to Adelaide Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Oregon to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The travel and health documents required for your trip to Adelaide Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Adelaide Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Oregon to Adelaide

  • How do I get Price Alerts for flights from Oregon to Adelaide?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Oregon from Adelaide. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Oregon to Adelaide with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Adelaide?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oregon to Adelaide for you.

Can I find flights from Oregon to Adelaide with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Oregon to Adelaide flights to just show those with flexible booking policies.

How can momondo help me find flights from Oregon to Adelaide?

Once all potential Oregon to Adelaide flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Oregon to Adelaide right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Adelaide, momondo offers a useful price alert feature which will track prices for flights to Adelaide from Oregon and alert you when they change.

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