Cheap flights from Oregon to Australia from $426

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 4/8. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:00 pm - 8:45 amPDX-BNE
19h 45m1 stop
Air Canada Logo
10:45 am - 6:30 pmBNE-PDX
25h 45m1 stop
$843Air Canada
Find Deal
Tue, Feb 3 - Sat, Feb 14
Multiple Airlines Logo
7:00 pm - 1:25 pmPDX-BNE
24h 25m2 stops
Multiple Airlines Logo
10:45 am - 2:40 pmBNE-PDX
21h 55m1 stop
$861Multiple Airlines
Find Deal
Tue, Feb 3 - Sun, Feb 15
United Airlines Logo
1:10 pm - 9:05 amEUG-SYD
24h 55m2 stops
United Airlines Logo
11:20 am - 9:05 pmSYD-EUG
28h 45m2 stops
$902United Airlines
Find Deal
Tue, Feb 10 - Sat, Feb 28
United Airlines Logo
6:00 am - 6:20 amEUG-SYD
29h 20m1 stop
United Airlines Logo
12:10 pm - 12:16 pmSYD-EUG
19h 06m1 stop
$904United Airlines
Find Deal
Tue, Feb 10 - Sat, Feb 28
Qantas Airways Logo
10:35 am - 9:30 amPDX-MEL
27h 55m1 stop
Qantas Airways Logo
12:00 pm - 10:36 pmMEL-PDX
28h 36m1 stop
$951Qantas Airways
Find Deal
Tue, Feb 24 - Fri, Mar 13
American Airlines Logo
11:48 am - 9:30 amPDX-MEL
26h 42m2 stops
American Airlines Logo
12:00 pm - 10:00 pmMEL-PDX
29h 00m1 stop
$955American Airlines
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Thu, Feb 12 - Thu, Mar 5
American Airlines Logo
11:40 am - 9:30 amPDX-MEL
26h 50m2 stops
American Airlines Logo
12:00 pm - 5:12 pmMEL-PDX
24h 12m1 stop
$956American Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 29
Qantas Airways Logo
2:40 pm - 5:00 amPDX-BNE
20h 20m1 stop
Qantas Airways Logo
5:10 pm - 11:59 pmBNE-PDX
24h 49m1 stop
$974Qantas Airways
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Sat, Feb 21 - Sun, Mar 1
Delta Logo
5:30 pm - 8:00 amPDX-MEL
19h 30m1 stop
Delta Logo
10:10 am - 6:53 pmMEL-PDX
27h 43m1 stop
$1,022Delta
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Wed, Feb 11 - Wed, Feb 25
Delta Logo
7:37 pm - 8:00 amPDX-MEL
41h 23m2 stops
Delta Logo
10:00 am - 8:49 pmMEL-PDX
27h 49m2 stops
$1,026Delta
Find Deal
Tue, Feb 24 - Sun, Jun 14

Qantas Airways flights from Oregon to Australia

Our best Qantas Airways deals on Oregon to Australia flight tickets
Qantas Airways
Feb 24
PDX10:35 amPortland
27h 55m
1 stop
MEL9:30 amMelbourne
Mar 13
MEL12:00 pmMelbourne
28h 36m
1 stop
PDX10:36 pmPortland
Qantas Airways
Feb 21
PDX2:40 pmPortland
20h 20m
1 stop
BNE5:00 amBrisbane
Mar 1
BNE5:10 pmBrisbane
24h 49m
1 stop
PDX11:59 pmPortland
Qantas Airways
Feb 25
PDX2:40 pmPortland
23h 50m
1 stop
MEL9:30 amMelbourne
Mar 13
MEL12:00 pmMelbourne
28h 36m
1 stop
PDX10:36 pmPortland

Air Canada flights from Oregon to Australia

Our best Air Canada deals on Oregon to Australia flight tickets
Air Canada
Feb 3
PDX7:00 pmPortland
19h 45m
1 stop
BNE8:45 amBrisbane
Feb 14
BNE10:45 amBrisbane
25h 45m
1 stop
PDX6:30 pmPortland
Air Canada
Mar 18
PDX3:15 pmPortland
23h 30m
1 stop
BNE7:45 amBrisbane
Apr 3
BNE10:00 amBrisbane
16h 15m
1 stop
PDX9:15 amPortland
Air Canada
Mar 1
PDX3:15 pmPortland
23h 30m
1 stop
BNE8:45 amBrisbane
Mar 15
BNE9:45 amBrisbane
25h 45m
1 stop
PDX6:30 pmPortland

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 November 5, 2025.
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

Tue 2/3

7:00 pm-8:45 am

1 stop19h 45m

Brisbane

Sat 2/14

10:45 am-6:30 pm

1 stop25h 45m

$843

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 2/3

7:00 pm-1:25 pm

2 stops24h 25m

Brisbane

Sun 2/15

10:45 am-2:40 pm

1 stop21h 55m

$861

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 2/10

1:10 pm-9:05 am

2 stops24h 55m

Sydney Kingsford Smith

Sat 2/28

11:20 am-9:05 pm

2 stops28h 45m

$902

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 2/10

6:00 am-6:20 am

1 stop29h 20m

Sydney Kingsford Smith

Sat 2/28

12:10 pm-12:16 pm

1 stop19h 06m

$904

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

10:35 am-9:30 am

1 stop27h 55m

Melbourne

Fri 3/13

12:00 pm-10:36 pm

1 stop28h 36m

$951

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 2/12

11:48 am-9:30 am

2 stops26h 42m

Melbourne

Thu 3/5

12:00 pm-10:00 pm

1 stop29h 00m

$955

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 11/15

11:40 am-9:30 am

2 stops26h 50m

Melbourne

Sat 11/29

12:00 pm-5:12 pm

1 stop24h 12m

$956

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 2/21

2:40 pm-5:00 am

1 stop20h 20m

Brisbane

Sun 3/1

5:10 pm-11:59 pm

1 stop24h 49m

$974

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 2/11

5:30 pm-8:00 am

1 stop19h 30m

Melbourne

Wed 2/25

10:10 am-6:53 pm

1 stop27h 43m

$1,022

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:37 pm-8:00 am

2 stops41h 23m

Melbourne

Sun 6/14

10:00 am-8:49 pm

2 stops27h 49m

$1,026

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 $993. If you aren’t able to travel during the month of September, then book flights to Australia from Oregon during August instead. Flights to Australia in August, while not as cheap as those in September, still average around $1,005.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Oregon to Australia is on a Saturday. Travelers who choose to depart for Australia on a Saturday will often find tickets for as low as $1,040. On the other hand, Thursday is the most expensive day to depart from Oregon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,146.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Oregon in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,060 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,135 on average. Flights to Australia from Oregon at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,116 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 $1,017 on momondo.

Can stopping save me money on Oregon to Australia flights?

You could potentially save up to 3% 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

Direct flights

None
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 $456Free CancellationRating
7.9
8,004 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $550Free CancellationRating
7.8
2,804 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $656Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
Air CanadaPriceFrom $840Free CancellationRating
7.1
10,409 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $898Free CancellationRating
7.5
927 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $952Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $999Free CancellationRating
8.0
11,242 reviews
Search Alaska Airlines flights
Air New ZealandPriceFrom $1,141Free CancellationRating
8.0
521 reviews
Search Air New Zealand 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
Fri 12/5
Fri 12/12

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