What is the cheapest airline that flies from Oregon to Sydney Kingsford Smith?

United Airlines and Delta are the most popular carriers operating from Oregon to Sydney Kingsford Smith

How long does it take to fly to Sydney?

If you’re flying from a popular airport in Oregon, such as Portland or Medford, and flying into Sydney, then you can expect flight times to average 17h 50m and 18h 35m, respectively.

Which airlines fly to Sydney?

United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to Sydney from Oregon according to our data. United Airlines is the first choice among our users, with 63% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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 were last updated today.

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

The number of operators available for flights from Oregon to Sydney Kingsford Smith Airport is 3 as of September 2026.

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 required travel and health documents for your Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$794 Cheap Flights from Oregon to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oregon to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

08:00 - 19:45PDX Portland-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

21:40 - 06:05SYD Sydney Kingsford Smith-PDX Portland

27h 25m1 stop Honolulu

$1,509Multiple Airlines

Mon, 26 Oct - Sun, 8 Nov

17:50 - 19:45PDX Portland-SYD Sydney Kingsford Smith

30h 55m1 stop Honolulu

21:40 - 06:05SYD Sydney Kingsford Smith-PDX Portland

27h 25m1 stop Honolulu

$1,523Multiple Airlines

Sun, 8 Nov - Sun, 15 Nov

17:50 - 19:45PDX Portland-SYD Sydney Kingsford Smith

30h 55m1 stop Honolulu

21:40 - 06:00SYD Sydney Kingsford Smith-PDX Portland

26h 20m1 stop Honolulu

$1,533Alaska Airlines

Tue, 23 Feb - Tue, 16 Mar

15:50 - 07:55EUG Eugene-SYD Sydney Kingsford Smith

22h 05m1 stop San Francisco

11:50 - 18:12SYD Sydney Kingsford Smith-EUG Eugene

24h 22m1 stop San Francisco

$1,543United Airlines

Tue, 20 Oct - Tue, 27 Oct

16:30 - 09:20EUG Eugene-SYD Sydney Kingsford Smith

21h 50m1 stop San Francisco

11:50 - 11:59SYD Sydney Kingsford Smith-EUG Eugene

19h 09m1 stop San Francisco

$1,543United Airlines

Mon, 30 Nov - Mon, 7 Dec

13:49 - 09:20EUG Eugene-SYD Sydney Kingsford Smith

24h 31m1 stop San Francisco

11:50 - 13:09SYD Sydney Kingsford Smith-EUG Eugene

20h 19m1 stop San Francisco

$1,543United Airlines

Tue, 3 Nov - Tue, 10 Nov

19:10 - 09:35PDX Portland-SYD Sydney Kingsford Smith

19h 25m1 stop Vancouver Intl

07:30 - 09:25SYD Sydney Kingsford Smith-PDX Portland

19h 55m2 stops Brisbane Vancouver Intl

$1,570Air Canada

Tue, 23 Feb - Tue, 16 Mar

19:10 - 09:35PDX Portland-SYD Sydney Kingsford Smith

19h 25m1 stop Vancouver Intl

11:20 - 20:46SYD Sydney Kingsford Smith-PDX Portland

28h 26m1 stop Vancouver Intl

$1,597Air Canada

Wed, 17 Feb - Sun, 28 Feb

14:53 - 06:25PDX Portland-SYD Sydney Kingsford Smith

21h 32m1 stop San Francisco

11:05 - 13:35SYD Sydney Kingsford Smith-PDX Portland

20h 30m2 stops Brisbane Los Angeles

$1,680Qantas Airways

Tue, 20 Oct - Tue, 27 Oct

17:40 - 10:20PDX Portland-SYD Sydney Kingsford Smith

21h 40m2 stops Los Angeles Brisbane

21:25 - 20:48SYD Sydney Kingsford Smith-PDX Portland

18h 23m1 stop San Francisco

$1,743Qantas Airways

Thu, 18 Feb - Wed, 3 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

08:00 - 18:50PDX Portland-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

20:45 - 06:19SYD Sydney Kingsford Smith-PDX Portland

26h 34m1 stop Honolulu

$1,859Alaska Airlines

Wed, 30 Sep - Sat, 3 Oct

09:20 - 07:30PDX Portland-SYD Sydney Kingsford Smith

29h 10m2 stops Seattle/Tacoma Intl Los Angeles

20:45 - 06:19SYD Sydney Kingsford Smith-PDX Portland

26h 34m1 stop Honolulu

$2,108Multiple Airlines

Wed, 30 Sep - Sat, 3 Oct

17:55 - 07:05PDX Portland-SYD Sydney Kingsford Smith

20h 10m1 stop Los Angeles

21:50 - 23:16SYD Sydney Kingsford Smith-PDX Portland

43h 26m2 stops Brisbane Los Angeles

$2,110Multiple Airlines

Sun, 27 Sep - Sun, 4 Oct

13:53 - 07:05PDX Portland-SYD Sydney Kingsford Smith

24h 12m1 stop Los Angeles

10:10 - 10:44SYD Sydney Kingsford Smith-PDX Portland

18h 34m1 stop Los Angeles

$2,137Multiple Airlines

Sun, 27 Sep - Sun, 4 Oct

17:55 - 08:00PDX Portland-SYD Sydney Kingsford Smith

45h 05m2 stops Los Angeles Manila Ninoy Aquino Intl

10:15 - 09:31SYD Sydney Kingsford Smith-PDX Portland

40h 16m2 stops Manila Ninoy Aquino Intl Vancouver Intl

$2,142Multiple Airlines

Wed, 30 Sep - Sat, 3 Oct

15:00 - 07:05PDX Portland-SYD Sydney Kingsford Smith

23h 05m2 stops Phoenix Sky Harbor Intl Los Angeles

18:50 - 23:12SYD Sydney Kingsford Smith-PDX Portland

22h 22m2 stops Los Angeles Phoenix Sky Harbor Intl

$2,147American Airlines

Sun, 27 Sep - Sun, 4 Oct

15:33 - 07:05PDX Portland-SYD Sydney Kingsford Smith

22h 32m1 stop Los Angeles

15:15 - 22:06SYD Sydney Kingsford Smith-PDX Portland

23h 51m2 stops Brisbane Los Angeles

$2,167Qantas Airways

Sun, 27 Sep - Tue, 29 Sep

13:53 - 07:05PDX Portland-SYD Sydney Kingsford Smith

24h 12m1 stop Los Angeles

17:50 - 22:06SYD Sydney Kingsford Smith-PDX Portland

21h 16m1 stop Los Angeles

$2,181Qantas Airways

Sun, 27 Sep - Tue, 29 Sep

09:20 - 07:30PDX Portland-SYD Sydney Kingsford Smith

29h 10m2 stops Seattle/Tacoma Intl Los Angeles

19:25 - 16:34SYD Sydney Kingsford Smith-PDX Portland

38h 09m3 stops Auckland Intl Papeete Faaa Los Angeles

$2,545Multiple Airlines

Wed, 30 Sep - Sat, 3 Oct

15:33 - 20:10PDX Portland-SYD Sydney Kingsford Smith

35h 37m2 stops Los Angeles Hong Kong Intl

07:50 - 16:34SYD Sydney Kingsford Smith-PDX Portland

26h 44m3 stops Auckland Intl Papeete Faaa Los Angeles

$2,699Multiple Airlines

Sun, 27 Sep - Sun, 4 Oct

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Alaska Airlines flights from Oregon to Sydney

Our best Alaska Airlines deals on Oregon to Sydney flight tickets

Alaska Airlines

23 Feb

PDX17:50Portland

30h 55m

1 stop

SYD19:45Sydney Kingsford Smith

16 Mar

SYD21:40Sydney Kingsford Smith

26h 20m

1 stop

PDX06:00Portland

$1,533

Alaska Airlines

23 Feb

PDX17:50Portland

30h 55m

1 stop

SYD19:45Sydney Kingsford Smith

16 Mar

SYD21:40Sydney Kingsford Smith

26h 20m

1 stop

PDX06:00Portland

$1,573

Alaska Airlines

14 Feb

PDX17:50Portland

30h 55m

1 stop

SYD19:45Sydney Kingsford Smith

28 Feb

SYD21:40Sydney Kingsford Smith

18h 10m

1 stop

PDX20:50Portland

$1,574

Air Canada flights from Oregon to Sydney

Our best Air Canada deals on Oregon to Sydney flight tickets

Air Canada

23 Feb

PDX19:10Portland

19h 25m

1 stop

SYD09:35Sydney Kingsford Smith

16 Mar

SYD07:30Sydney Kingsford Smith

19h 55m

2 stops

PDX09:25Portland

$1,570

Air Canada

17 Feb

PDX19:10Portland

19h 25m

1 stop

SYD09:35Sydney Kingsford Smith

28 Feb

SYD11:20Sydney Kingsford Smith

28h 26m

1 stop

PDX20:46Portland

$1,597

Air Canada

27 Oct

PDX10:00Portland

28h 35m

1 stop

SYD08:35Sydney Kingsford Smith

2 Nov

SYD11:20Sydney Kingsford Smith

22h 21m

1 stop

PDX14:41Portland

$1,605

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Mon 26/10

08:00-19:45

1 stop17h 45m

Sydney Kingsford Smith

Sun 8/11

21:40-06:05

1 stop27h 25m

$1,509

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Sun 8/11

17:50-19:45

1 stop30h 55m

Sydney Kingsford Smith

Sun 15/11

21:40-06:05

1 stop27h 25m

$1,523

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Tue 23/2

17:50-19:45

1 stop30h 55m

Sydney Kingsford Smith

Tue 16/3

21:40-06:00

1 stop26h 20m

$1,533

EugeneSydney

EUG Eugene - SYD Sydney Kingsford Smith

EUGSYD

Eugene

Tue 20/10

15:50-07:55

1 stop22h 05m

Sydney Kingsford Smith

Tue 27/10

11:50-18:12

1 stop24h 22m

$1,543

EugeneSydney

EUG Eugene - SYD Sydney Kingsford Smith

EUGSYD

Eugene

Mon 30/11

16:30-09:20

1 stop21h 50m

Sydney Kingsford Smith

Mon 7/12

11:50-11:59

1 stop19h 09m

$1,543

EugeneSydney

EUG Eugene - SYD Sydney Kingsford Smith

EUGSYD

Eugene

Tue 3/11

13:49-09:20

1 stop24h 31m

Sydney Kingsford Smith

Tue 10/11

11:50-13:09

1 stop20h 19m

$1,543

Fastest return journey

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Tue 23/2

19:10-09:35

1 stop19h 25m

Sydney Kingsford Smith

Tue 16/3

07:30-09:25

2 stops19h 55m

$1,570

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Wed 17/2

19:10-09:35

1 stop19h 25m

Sydney Kingsford Smith

Sun 28/2

11:20-20:46

1 stop28h 26m

$1,597

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Tue 20/10

14:53-06:25

1 stop21h 32m

Sydney Kingsford Smith

Tue 27/10

11:05-13:35

2 stops20h 30m

$1,680

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Thu 18/2

17:40-10:20

2 stops21h 40m

Sydney Kingsford Smith

Wed 3/3

21:25-20:48

1 stop18h 23m

$1,743

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Sydney?

The month of September is, on average, the cheapest month to fly to Sydney from Oregon, with most prices found around $1,514. If you aren’t able to travel to Sydney during the month of September, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,580.

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 $1,765 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Oregon for as low as $1,454 on momondo.

Cheap Oregon to Sydney flight deals and tips

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

Best price found	$794
Fastest flight time	17h 50m
Direct flights	None

The best one-way flight to Sydney from Oregon in the past 72 hours is $794. The best return flight deal from Oregon to Sydney found on momondo in the last 72 hours is $1,509.

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 were last updated today.
How many operators does momondo search for flights from Oregon to Sydney Kingsford Smith Airport?
The number of operators available for flights from Oregon to Sydney Kingsford Smith Airport is 3 as of September 2026.
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 required travel and health documents for your Sydney Kingsford Smith Airport 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 Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable 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
Air Canada	PriceFrom $1,255	Free cancellation	Rating 7.1 11,676 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,257	Free cancellation	Rating 7.5 1,101 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $2,382	Free cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights

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Why use momondo?

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

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

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

Yes. All flights to Sydney 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 Sydney?

Once you have performed a search for Oregon to Sydney 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 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.