Cheap flights from Oregon to Australia from $450

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 7/1. 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

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:45 pm - 12:05 pm
PDX
-
BNE
23h 20m
2 stops
Multiple Airlines Logo
10:00 am - 9:31 am
BNE
-
PDX
16h 31m
1 stop
$848Multiple Airlines
Thu, Sep 10 - Sun, Sep 27
Multiple Airlines Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
6:00 am - 9:30 am
MEL
-
PDX
20h 30m
2 stops
$849Multiple Airlines
Fri, May 1 - Sat, May 16
Air Canada Logo
10:10 am - 7:05 am
PDX
-
BNE
27h 55m
1 stop
Air Canada Logo
10:00 am - 2:45 pm
BNE
-
PDX
21h 45m
1 stop
$859Air Canada
Wed, May 13 - Wed, May 27
Air Canada Logo
3:30 pm - 7:05 am
PDX
-
BNE
22h 35m
1 stop
Air Canada Logo
10:00 am - 2:45 pm
BNE
-
PDX
21h 45m
1 stop
$860Air Canada
Sun, May 3 - Sun, May 17
Multiple Airlines Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
6:00 am - 2:45 pm
MEL
-
PDX
25h 45m
2 stops
$862Multiple Airlines
Fri, May 8 - Thu, May 21
Delta Logo
5:15 am - 6:50 am
EUG
-
SYD
32h 35m
2 stops
Delta Logo
9:15 am - 5:04 pm
SYD
-
EUG
24h 49m
2 stops
$960Delta
Mon, Apr 13 - Wed, Apr 29
Delta Logo
6:30 am - 6:50 am
EUG
-
SYD
31h 20m
2 stops
Delta Logo
9:15 am - 11:48 am
SYD
-
EUG
43h 33m
2 stops
$973Delta
Mon, Apr 13 - Sun, Apr 26
United Airlines Logo
2:07 pm - 6:55 am
MFR
-
SYD
23h 48m
1 stop
United Airlines Logo
10:20 am - 5:55 pm
SYD
-
MFR
24h 35m
1 stop
$1,003United Airlines
Mon, May 4 - Mon, May 18
United Airlines Logo
6:35 pm - 6:55 am
MFR
-
SYD
19h 20m
1 stop
United Airlines Logo
10:20 am - 5:51 pm
SYD
-
MFR
24h 31m
1 stop
$1,004United Airlines
Wed, May 27 - Mon, Aug 10
Air New Zealand Logo
6:51 pm - 6:55 am
EUG
-
SYD
19h 04m
1 stop
Air New Zealand Logo
10:20 am - 11:55 am
SYD
-
EUG
18h 35m
1 stop
$1,054Air New Zealand
Mon, Apr 13 - Wed, Apr 29

Alaska Airlines flights from Oregon to Australia

Our best Alaska Airlines deals on Oregon to Australia flight tickets
Alaska Airlines
Aug 11
BOI6:51 pmBoise Air Term. Gowen Fld
20h 14m
1 stop
SYD7:05 amSydney Kingsford Smith
Aug 19
SYD9:10 amSydney Kingsford Smith
20h 34m
1 stop
BOI1:44 pmBoise Air Term. Gowen Fld
$1,194
Alaska Airlines
Jul 30
BOI6:51 pmBoise Air Term. Gowen Fld
20h 14m
1 stop
SYD7:05 amSydney Kingsford Smith
Aug 31
SYD9:10 amSydney Kingsford Smith
20h 34m
1 stop
BOI1:44 pmBoise Air Term. Gowen Fld
$1,384

American Airlines flights from Oregon to Australia

Our best American Airlines deals on Oregon to Australia flight tickets
American Airlines
Apr 20
EUG7:00 amEugene
31h 05m
1 stop
SYD7:05 amSydney Kingsford Smith
Apr 27
SYD9:10 amSydney Kingsford Smith
19h 54m
1 stop
EUG12:04 pmEugene
$1,225
American Airlines
Apr 19
BOI2:14 pmBoise Air Term. Gowen Fld
25h 16m
2 stops
SYD7:30 amSydney Kingsford Smith
Apr 26
SYD12:00 pmSydney Kingsford Smith
26h 54m
1 stop
BOI10:54 pmBoise Air Term. Gowen Fld
$1,230
American Airlines
May 2
BOI1:53 pmBoise Air Term. Gowen Fld
25h 02m
1 stop
SYD6:55 amSydney Kingsford Smith
May 9
SYD12:00 pmSydney Kingsford Smith
26h 54m
1 stop
BOI10:54 pmBoise Air Term. Gowen Fld
$1,325

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated March 22, 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

Cheapest round-trip

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 9/10

7:45 pm-12:05 pm

2 stops23h 20m

Brisbane

Sun 9/27

10:00 am-9:31 am

1 stop16h 31m

$848

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/1

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Sat 5/16

6:00 am-9:30 am

2 stops20h 30m

$849

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 5/13

10:10 am-7:05 am

1 stop27h 55m

Brisbane

Wed 5/27

10:00 am-2:45 pm

1 stop21h 45m

$859

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 5/3

3:30 pm-7:05 am

1 stop22h 35m

Brisbane

Sun 5/17

10:00 am-2:45 pm

1 stop21h 45m

$860

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Thu 5/21

6:00 am-2:45 pm

2 stops25h 45m

$862

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Mon 4/13

5:15 am-6:50 am

2 stops32h 35m

Sydney Kingsford Smith

Wed 4/29

9:15 am-5:04 pm

2 stops24h 49m

$960

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Mon 4/13

6:30 am-6:50 am

2 stops31h 20m

Sydney Kingsford Smith

Sun 4/26

9:15 am-11:48 am

2 stops43h 33m

$973

MedfordSydney

MFR - SYD

MFRSYD

Medford

Mon 5/4

2:07 pm-6:55 am

1 stop23h 48m

Sydney Kingsford Smith

Mon 5/18

10:20 am-5:55 pm

1 stop24h 35m

$1,003

MedfordSydney

MFR - SYD

MFRSYD

Medford

Wed 5/27

6:35 pm-6:55 am

1 stop19h 20m

Sydney Kingsford Smith

Mon 8/10

10:20 am-5:51 pm

1 stop24h 31m

$1,004
Quickest round-trip

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Mon 4/13

6:51 pm-6:55 am

1 stop19h 04m

Sydney Kingsford Smith

Wed 4/29

10:20 am-11:55 am

1 stop18h 35m

$1,054

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

The month of September is, on average, the cheapest month to fly to Australia from Oregon, with most prices found around $1,001. If you aren’t able to travel during the month of September, then book flights to Australia from Oregon during October instead. Flights to Australia in October, while not as cheap as those in September, still average around $1,137.

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 $1,221 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Oregon for as low as $895 on momondo.

Can stopping save me money on Oregon to Australia flights?

You could potentially save up to 15% 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 20m

Direct flights

None
The fastest flight from Oregon to Australia takes 18h 20m
There are no direct flights from Oregon to Australia. There are no popular flight routes from Oregon to Australia.
  • When did momondo last update prices for flights from Oregon to Australia?

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

  • 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 layovers. 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 license 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
DeltaPriceFrom $229Free CancellationRating
7.9
8,314 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $550Free CancellationRating
7.8
2,841 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $574Free CancellationRating
7.1
10,830 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $757Free CancellationRating
7.5
1,006 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $855Free CancellationRating
7.1
11,486 reviews
Search American Airlines flights
United AirlinesPriceFrom $868Free CancellationRating
7.4
9,455 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $999Free CancellationRating
7.9
12,093 reviews
Search Alaska Airlines flights
Alaska AirlinesPriceFrom $1,140Free CancellationRating
0.0
Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Australia from Oregon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Yes. All flights to Australia from Oregon on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Oregon to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Oregon to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.

An easier way to manage your Australia trip

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1 adult
Tue 4/21
Tue 4/28

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