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Cheap flights from Oregon to Sydney from $614

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 Sydney departing on 10/25. 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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Find the cheapest flights from Oregon to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:00 am - 6:50 pm
PDX
-
SYD
17h 50m
1 stop
Alaska Airlines Logo
8:45 pm - 6:20 am
SYD
-
PDX
26h 35m
1 stop
$1,121Alaska Airlines
Mon, Jun 1 - Sun, Jun 7
Air Canada Logo
3:30 pm - 7:20 am
PDX
-
SYD
22h 50m
1 stop
Air Canada Logo
9:20 am - 9:30 am
SYD
-
PDX
17h 10m
1 stop
$1,122Air Canada
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
5:37 pm - 11:50 am
PDX
-
SYD
25h 13m
2 stops
Multiple Airlines Logo
1:15 pm - 8:48 pm
SYD
-
PDX
24h 33m
2 stops
$1,136Multiple Airlines
Wed, Aug 5 - Mon, Aug 17
Multiple Airlines Logo
2:50 pm - 11:50 am
PDX
-
SYD
28h 00m
2 stops
Multiple Airlines Logo
1:15 pm - 11:24 pm
SYD
-
PDX
27h 09m
2 stops
$1,137Multiple Airlines
Wed, Aug 19 - Wed, Sep 2
American Airlines Logo
12:17 pm - 6:55 am
BOI
-
SYD
26h 38m
1 stop
American Airlines Logo
12:00 pm - 10:20 pm
SYD
-
BOI
26h 20m
1 stop
$1,157American Airlines
Tue, Aug 11 - Tue, Aug 18
Air New Zealand Logo
2:11 pm - 6:55 am
MFR
-
SYD
23h 44m
1 stop
Air New Zealand Logo
10:20 am - 12:04 pm
SYD
-
MFR
18h 44m
1 stop
$1,159Air New Zealand
Wed, May 27 - Mon, Aug 10
United Airlines Logo
6:58 pm - 6:55 am
BOI
-
SYD
19h 57m
1 stop
United Airlines Logo
10:20 am - 4:44 pm
SYD
-
BOI
22h 24m
1 stop
$1,160United Airlines
Wed, May 20 - Wed, Jun 17
United Airlines Logo
2:11 pm - 7:00 am
MFR
-
SYD
23h 49m
2 stops
United Airlines Logo
10:20 am - 12:04 pm
SYD
-
MFR
18h 44m
1 stop
$1,160United Airlines
Wed, May 27 - Mon, Aug 10
American Airlines Logo
12:17 pm - 6:55 am
BOI
-
SYD
26h 38m
1 stop
American Airlines Logo
5:50 pm - 10:40 pm
SYD
-
BOI
20h 50m
2 stops
$1,161American Airlines
Tue, Aug 11 - Tue, Aug 18
Air New Zealand Logo
1:57 pm - 6:55 am
EUG
-
SYD
23h 58m
1 stop
Air New Zealand Logo
10:20 am - 11:58 am
SYD
-
EUG
18h 38m
1 stop
$1,229Air New Zealand
Tue, Sep 8 - Tue, Sep 15

Alaska Airlines flights from Oregon to Sydney

Our best Alaska Airlines deals on Oregon to Sydney flight tickets
Alaska Airlines
Jun 1
PDX8:00 amPortland
17h 50m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jun 7
SYD8:45 pmSydney Kingsford Smith
26h 35m
1 stop
PDX6:20 amPortland
$1,121
Alaska Airlines
Jun 22
PDX7:46 amPortland
18h 04m
1 stop
SYD6:50 pmSydney Kingsford Smith
Jul 21
SYD8:45 pmSydney Kingsford Smith
26h 26m
1 stop
PDX6:11 amPortland
$1,152
Alaska Airlines
May 24
PDX5:34 pmPortland
32h 16m
1 stop
SYD6:50 pmSydney Kingsford Smith
May 30
SYD8:45 pmSydney Kingsford Smith
26h 35m
1 stop
PDX6:20 amPortland
$1,161

Qantas Airways flights from Oregon to Sydney

Our best Qantas Airways deals on Oregon to Sydney flight tickets
Qantas Airways
Sep 4
PDX6:50 pmPortland
18h 35m
1 stop
SYD6:25 amSydney Kingsford Smith
Sep 13
SYD5:10 pmSydney Kingsford Smith
21h 45m
2 stops
PDX9:55 pmPortland
$1,200
Qantas Airways
Nov 1
PDX4:59 pmPortland
22h 21m
2 stops
SYD10:20 amSydney Kingsford Smith
Nov 13
SYD9:25 pmSydney Kingsford Smith
18h 23m
1 stop
PDX8:48 pmPortland
$1,205
Qantas Airways
Sep 4
PDX6:50 pmPortland
18h 35m
1 stop
SYD6:25 amSydney Kingsford Smith
Sep 13
SYD5:10 pmSydney Kingsford Smith
21h 45m
2 stops
PDX9:55 pmPortland
$1,213

momondo Fare Finder

 
Customize your flight search to find flights from Oregon to Sydney 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 May 10, 2026.
Use the filters below to find and compare flights from Oregon to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 6/1

8:00 am-6:50 pm

1 stop17h 50m

Sydney Kingsford Smith

Sun 6/7

8:45 pm-6:20 am

1 stop26h 35m

$1,121
Quickest round-trip

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 6/1

3:30 pm-7:20 am

1 stop22h 50m

Sydney Kingsford Smith

Sun 6/7

9:20 am-9:30 am

1 stop17h 10m

$1,122

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 8/5

5:37 pm-11:50 am

2 stops25h 13m

Sydney Kingsford Smith

Mon 8/17

1:15 pm-8:48 pm

2 stops24h 33m

$1,136

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 8/19

2:50 pm-11:50 am

2 stops28h 00m

Sydney Kingsford Smith

Wed 9/2

1:15 pm-11:24 pm

2 stops27h 09m

$1,137

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 8/11

12:17 pm-6:55 am

1 stop26h 38m

Sydney Kingsford Smith

Tue 8/18

12:00 pm-10:20 pm

1 stop26h 20m

$1,157

MedfordSydney

MFR - SYD

MFRSYD

Medford

Wed 5/27

2:11 pm-6:55 am

1 stop23h 44m

Sydney Kingsford Smith

Mon 8/10

10:20 am-12:04 pm

1 stop18h 44m

$1,159

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 5/20

6:58 pm-6:55 am

1 stop19h 57m

Sydney Kingsford Smith

Wed 6/17

10:20 am-4:44 pm

1 stop22h 24m

$1,160

MedfordSydney

MFR - SYD

MFRSYD

Medford

Wed 5/27

2:11 pm-7:00 am

2 stops23h 49m

Sydney Kingsford Smith

Mon 8/10

10:20 am-12:04 pm

1 stop18h 44m

$1,160

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Tue 8/11

12:17 pm-6:55 am

1 stop26h 38m

Sydney Kingsford Smith

Tue 8/18

5:50 pm-10:40 pm

2 stops20h 50m

$1,161

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 9/8

1:57 pm-6:55 am

1 stop23h 58m

Sydney Kingsford Smith

Tue 9/15

10:20 am-11:58 am

1 stop18h 38m

$1,229

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Oregon to Sydney

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 Sydney?

In general, September is the cheapest month to fly from Oregon to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $139. If you are unable to visit Sydney during the month of September, then departing from Oregon during the month April is also very affordable. Most momondo users find prices during this month for around $177.

How far in advance should I book a flight from Oregon to Sydney?

You are more likely to see cheaper flights to Sydney from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,210 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Oregon for as low as $1,016 on momondo.

Can stopping save me money on Oregon to Sydney flights?

You could potentially save up to 19% on your flight if you consider stops on a Oregon to Sydney flight.

Cheap Oregon to Sydney flight deals and tips

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

Fastest flight time

17h 50m

Direct flights

None
The fastest flight from Oregon to Sydney takes 17h 50m
There are no direct flights from Oregon to Sydney. There are no popular flight routes from Oregon to Sydney.
Search flight deals

Frequently asked questions about flying from Oregon to Sydney

  • When did momondo last update prices for flights from Oregon to Sydney Kingsford Smith Airport?

    Prices for flights from Oregon to Sydney Kingsford Smith Airport refresh daily.

  • How many operators does momondo search for flights from Oregon to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Oregon to Sydney Kingsford Smith 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 Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oregon to Sydney

Compare and see reviews for airlines that fly from Oregon to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $229Free CancellationRating
7.9
8,452 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $550Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $876Free CancellationRating
7.4
9,699 reviews
Search United Airlines flights
Air CanadaPriceFrom $886Free CancellationRating
7.1
11,017 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $906Free CancellationRating
7.5
1,034 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $954Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $999Free CancellationRating
7.9
12,352 reviews
Search Alaska Airlines flights
Alaska AirlinesPriceFrom $1,140Free CancellationRating
0.0
Search Alaska Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
Terrigal
Charlestown
Swansea

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from Oregon.

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

momondo does allow users to show only those flights to Sydney from Oregon which offer a flexible booking policy as well as other useful filters and features.

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

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 Sydney from Oregon.

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

Price alerts on flights to Sydney from Oregon are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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