Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Oregon to Australia from $645

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Australia departing on 1/5. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Oregon to Australia

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:10 - 07:05
PDX
-
BNE
27h 55m
1 stop
Air Canada Logo
10:00 - 14:45
BNE
-
PDX
21h 45m
1 stop
$1,223Air Canada
Sun, 3 May - Sun, 17 May
Air Canada Logo
19:45 - 07:05
PDX
-
BNE
18h 20m
1 stop
Air Canada Logo
10:00 - 14:45
BNE
-
PDX
21h 45m
1 stop
$1,225Air Canada
Sun, 3 May - Sun, 17 May
Multiple Airlines Logo
10:08 - 07:25
PDX
-
SYD
26h 17m
1 stop
Multiple Airlines Logo
14:00 - 11:52
SYD
-
PDX
39h 52m
2 stops
$1,275Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
10:08 - 07:25
PDX
-
SYD
26h 17m
1 stop
Multiple Airlines Logo
14:00 - 11:52
SYD
-
PDX
39h 52m
2 stops
$1,281Multiple Airlines
Fri, 6 Mar - Fri, 20 Mar
Qantas Airways Logo
06:25 - 09:00
PDX
-
SYD
31h 35m
1 stop
Qantas Airways Logo
19:15 - 22:02
SYD
-
PDX
44h 47m
2 stops
$1,305Qantas Airways
Tue, 17 Feb - Tue, 10 Mar
American Airlines Logo
17:38 - 09:30
PDX
-
MEL
21h 52m
1 stop
American Airlines Logo
12:00 - 17:08
MEL
-
PDX
23h 08m
1 stop
$1,374American Airlines
Thu, 19 Mar - Tue, 24 Mar
American Airlines Logo
11:48 - 06:45
PDX
-
MEL
25h 57m
2 stops
American Airlines Logo
09:45 - 15:10
MEL
-
PDX
22h 25m
1 stop
$1,379American Airlines
Fri, 8 May - Thu, 21 May
Delta Logo
05:50 - 08:30
RDM
-
SYD
31h 40m
2 stops
Delta Logo
10:40 - 22:47
SYD
-
RDM
31h 07m
2 stops
$1,424Delta
Mon, 23 Feb - Sun, 8 Mar
Delta Logo
05:55 - 06:50
MFR
-
SYD
31h 55m
2 stops
Delta Logo
09:15 - 16:47
SYD
-
MFR
24h 32m
2 stops
$1,424Delta
Tue, 4 Aug - Mon, 17 Aug
Qantas Airways Logo
17:38 - 15:35
PDX
-
OOL
28h 57m
2 stops
Qantas Airways Logo
09:20 - 21:35
OOL
-
PDX
29h 15m
2 stops
$1,944Qantas Airways
Fri, 3 Apr - Fri, 24 Apr

Air Canada flights from Oregon to Australia

Our best Air Canada deals on Oregon to Australia flight tickets
Air Canada
3 May
PDX10:10Portland
27h 55m
1 stop
BNE07:05Brisbane
17 May
BNE10:00Brisbane
21h 45m
1 stop
PDX14:45Portland
$1,223
Air Canada
3 May
PDX19:45Portland
18h 20m
1 stop
BNE07:05Brisbane
17 May
BNE10:00Brisbane
21h 45m
1 stop
PDX14:45Portland
$1,225
Air Canada
5 Mar
PDX15:15Portland
23h 30m
1 stop
BNE08:45Brisbane
19 Mar
BNE09:45Brisbane
16h 30m
1 stop
PDX09:15Portland
$1,258

Qantas Airways flights from Oregon to Australia

Our best Qantas Airways deals on Oregon to Australia flight tickets
Qantas Airways
17 Feb
PDX06:25Portland
31h 35m
1 stop
SYD09:00Sydney Kingsford Smith
10 Mar
SYD19:15Sydney Kingsford Smith
44h 47m
2 stops
PDX22:02Portland
$1,305
Qantas Airways
9 Feb
PDX17:50Portland
20h 40m
1 stop
MEL09:30Melbourne
11 Feb
MEL12:00Melbourne
23h 49m
1 stop
PDX16:49Portland
$1,371
Qantas Airways
5 May
PDX17:51Portland
19h 34m
1 stop
SYD06:25Sydney Kingsford Smith
12 May
SYD06:25Sydney Kingsford Smith
27h 24m
2 stops
PDX16:49Portland
$1,438

momondo Fare Finder

 
Customise your flight search to find flights from Oregon to Australia 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 78,305 searches. Data last updated 7 February 2026.
Use the filters below to find and compare flights from Oregon to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/5

10:10-07:05

1 stop27h 55m

Brisbane

Sun 17/5

10:00-14:45

1 stop21h 45m

$1,223

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/5

19:45-07:05

1 stop18h 20m

Brisbane

Sun 17/5

10:00-14:45

1 stop21h 45m

$1,225

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 6/3

10:08-07:25

1 stop26h 17m

Sydney Kingsford Smith

Fri 13/3

14:00-11:52

2 stops39h 52m

$1,275

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 6/3

10:08-07:25

1 stop26h 17m

Sydney Kingsford Smith

Fri 20/3

14:00-11:52

2 stops39h 52m

$1,281

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 17/2

06:25-09:00

1 stop31h 35m

Sydney Kingsford Smith

Tue 10/3

19:15-22:02

2 stops44h 47m

$1,305

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 19/3

17:38-09:30

1 stop21h 52m

Melbourne

Tue 24/3

12:00-17:08

1 stop23h 08m

$1,374

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/5

11:48-06:45

2 stops25h 57m

Melbourne

Thu 21/5

09:45-15:10

1 stop22h 25m

$1,379

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

Mon 23/2

05:50-08:30

2 stops31h 40m

Sydney Kingsford Smith

Sun 8/3

10:40-22:47

2 stops31h 07m

$1,424

MedfordSydney

MFR - SYD

MFRSYD

Medford

Tue 4/8

05:55-06:50

2 stops31h 55m

Sydney Kingsford Smith

Mon 17/8

09:15-16:47

2 stops24h 32m

$1,424

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Fri 3/4

17:38-15:35

2 stops28h 57m

Coolangatta Gold Coast

Fri 24/4

09:20-21:35

2 stops29h 15m

$1,944

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Australia from

How to get the cheapest flight ticket from Oregon to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

In general, June is the cheapest month to fly from Oregon to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,428. If you don’t want to visit Australia in June, then you should wait until September to fly from Oregon, when ticket prices are also cheap, with an average price of $1,434.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,709 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Oregon for as low as $1,282 on momondo.

Can stopping save me money on Oregon to Australia flights?

You could potentially save up to 24% on your flight if you consider stops on a Oregon to Australia flight.

Cheap Oregon to Australia flight deals and tips

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

Fastest flight time

18h 09m

Direct flights

None
The fastest flight from Oregon to Australia takes 18h 09m
There are no direct flights from Oregon to Australia. There are no popular flight routes from Oregon to Australia.
Search flight deals

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

    Prices for flights from Oregon to Australia refresh daily.

  • How many operators does momondo search for flights from Oregon to Australia?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Oregon to Australia.

  • What documentation or ID do you need to fly to Australia?

    The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Oregon to Australia

Compare and see reviews for airlines that fly from Oregon to Australia with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,315Free cancellationRating
7.4
9,250 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oregon to Australia. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Oregon.

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

Of course. momondo tracks the price of Oregon to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/3
Mon 16/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia