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Cheap flights from Sydney to Portland from $584

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Portland departing on 11/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
5:45 pm - 5:12 pmSYD-PDX
18h 27m1 stop
Multiple Airlines Logo
2:42 pm - 7:25 amPDX-SYD
21h 43m2 stops
$857Multiple Airlines
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Mon, Dec 1 - Wed, Dec 31
American Airlines Logo
11:20 am - 5:12 pmSYD-PDX
24h 52m1 stop
American Airlines Logo
6:20 am - 9:00 amPDX-SYD
31h 40m1 stop
$860American Airlines
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Mon, Dec 1 - Wed, Dec 31
Alaska Airlines Logo
9:40 pm - 5:56 amSYD-PDX
27h 16m2 stops
Alaska Airlines Logo
6:09 pm - 7:45 pmPDX-SYD
30h 36m2 stops
$918Alaska Airlines
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Wed, Dec 24 - Wed, Dec 31
Hawaiian Airlines Logo
9:40 pm - 5:25 amSYD-PDX
26h 45m1 stop
Hawaiian Airlines Logo
7:00 am - 7:45 pmPDX-SYD
17h 45m1 stop
$938Hawaiian Airlines
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Wed, Dec 24 - Thu, Jan 1
Alaska Airlines Logo
9:40 pm - 5:56 amSYD-PDX
27h 16m2 stops
Alaska Airlines Logo
9:45 pm - 7:45 pmPDX-SYD
27h 00m2 stops
$943Alaska Airlines
Find Deal
Wed, Dec 24 - Mon, Dec 29
Hawaiian Airlines Logo
9:40 pm - 5:56 amSYD-PDX
27h 16m2 stops
Hawaiian Airlines Logo
7:00 am - 7:45 pmPDX-SYD
17h 45m1 stop
$955Hawaiian Airlines
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Wed, Dec 24 - Thu, Jan 1
Air Canada Logo
11:20 am - 6:30 pmSYD-PDX
26h 10m1 stop
Air Canada Logo
7:00 pm - 9:35 amPDX-SYD
19h 35m1 stop
$984Air Canada
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Thu, Dec 25 - Tue, Dec 30
United Airlines Logo
12:10 pm - 5:31 pmSYD-PDX
24h 21m2 stops
United Airlines Logo
7:00 am - 7:00 amPDX-SYD
29h 00m1 stop
$1,054United Airlines
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Thu, Dec 25 - Sun, Jan 4
United Airlines Logo
12:10 pm - 2:46 pmSYD-PDX
21h 36m1 stop
United Airlines Logo
7:45 pm - 9:15 amPDX-SYD
18h 30m1 stop
$1,103United Airlines
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Wed, Dec 24 - Sat, Jan 3
Air Canada Logo
3:00 pm - 9:15 amSYD-PDX
37h 15m2 stops
Air Canada Logo
3:15 pm - 4:40 pmPDX-SYD
30h 25m2 stops
$1,205Air Canada
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Mon, Dec 1 - Wed, Dec 31

American Airlines flights from Sydney to Portland

Our best American Airlines deals on Sydney to Portland flight tickets
American Airlines
Nov 5
SYD11:20 amSydney Kingsford Smith
24h 52m
1 stop
PDX5:12 pmPortland
Nov 12
PDX12:00 pmPortland
26h 00m
2 stops
SYD9:00 amSydney Kingsford Smith
$841
Find similar
American Airlines
Nov 5
SYD5:45 pmSydney Kingsford Smith
24h 41m
2 stops
PDX11:26 pmPortland
Nov 12
PDX12:00 pmPortland
26h 00m
2 stops
SYD9:00 amSydney Kingsford Smith
$848
Find similar
American Airlines
Dec 1
SYD11:20 amSydney Kingsford Smith
24h 52m
1 stop
PDX5:12 pmPortland
Dec 31
PDX6:20 amPortland
31h 40m
1 stop
SYD9:00 amSydney Kingsford Smith
$860
Find similar

Alaska Airlines flights from Sydney to Portland

Our best Alaska Airlines deals on Sydney to Portland flight tickets
Alaska Airlines
Dec 24
SYD9:40 pmSydney Kingsford Smith
27h 16m
2 stops
PDX5:56 amPortland
Dec 31
PDX6:09 pmPortland
30h 36m
2 stops
SYD7:45 pmSydney Kingsford Smith
$918
Find similar
Alaska Airlines
Dec 24
SYD9:40 pmSydney Kingsford Smith
27h 16m
2 stops
PDX5:56 amPortland
Dec 29
PDX9:45 pmPortland
27h 00m
2 stops
SYD7:45 pmSydney Kingsford Smith
$943
Find similar
Alaska Airlines
Dec 24
SYD9:40 pmSydney Kingsford Smith
26h 45m
1 stop
PDX5:25 amPortland
Dec 31
PDX7:00 amPortland
17h 45m
1 stop
SYD7:45 pmSydney Kingsford Smith
$956
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sydney to Portland 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 2, 2025.
Use the filters below to find and compare flights from Sydney to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Mon 12/1

5:45 pm-5:12 pm

1 stop18h 27m

Portland

Wed 12/31

2:42 pm-7:25 am

2 stops21h 43m

$857

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Mon 12/1

11:20 am-5:12 pm

1 stop24h 52m

Portland

Wed 12/31

6:20 am-9:00 am

1 stop31h 40m

$860

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/24

9:40 pm-5:56 am

2 stops27h 16m

Portland

Wed 12/31

6:09 pm-7:45 pm

2 stops30h 36m

$918

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/24

9:40 pm-5:25 am

1 stop26h 45m

Portland

Thu 1/1

7:00 am-7:45 pm

1 stop17h 45m

$938

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/24

9:40 pm-5:56 am

2 stops27h 16m

Portland

Mon 12/29

9:45 pm-7:45 pm

2 stops27h 00m

$943

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/24

9:40 pm-5:56 am

2 stops27h 16m

Portland

Thu 1/1

7:00 am-7:45 pm

1 stop17h 45m

$955

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 12/25

11:20 am-6:30 pm

1 stop26h 10m

Portland

Tue 12/30

7:00 pm-9:35 am

1 stop19h 35m

$984

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 12/25

12:10 pm-5:31 pm

2 stops24h 21m

Portland

Sun 1/4

7:00 am-7:00 am

1 stop29h 00m

$1,054

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/24

12:10 pm-2:46 pm

1 stop21h 36m

Portland

Sat 1/3

7:45 pm-9:15 am

1 stop18h 30m

$1,103

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Mon 12/1

3:00 pm-9:15 am

2 stops37h 15m

Portland

Wed 12/31

3:15 pm-4:40 pm

2 stops30h 25m

$1,205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Sydney to Portland

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 typical price of a round-trip flight between Sydney and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Sydney is in October. Flight prices, which tend to average around $840, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in October, then you should wait until August to fly from Sydney, when ticket prices are also cheap, with an average price of $951.

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

The cheapest day to depart on your flight to Portland is on a Thursday when prices can be found for as low as $1,044. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Tuesday, with ticket prices averaging around $1,517.

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

The cheapest time of day to fly to Portland is in the morning when flights can be purchased for as low as $1,143. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $1,304 per ticket.

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

You are more likely to see cheaper flights to Portland from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $1,103 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Sydney for as low as $543 on momondo.

How have Sydney to Portland flight prices changed over time?

As of November 2025, prices for Sydney to Portland flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sydney to Portland (SYD to PDX) flight deals and tips

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

Direct flights

None
There are no direct flights from Sydney to Portland. There are no popular flight routes from Sydney to Portland.
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  • How far is Sydney Kingsford Smith to Portland by plane?

    Portland is 7663.9 mi away from Sydney Kingsford Smith. A reasonable flight in good conditions will take 16h 55m.

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

    Prices for flights from Sydney Kingsford Smith Airport to Portland Airport are refreshed on a daily basis.

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

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland 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.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
Gresham
McMinnville
Longview
The Dalles
Pacific City
Tigard
Manzanita
Tillamook

Why use momondo?

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

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 Portland from Sydney.

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

All flight searches from Sydney to Portland on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sydney to Portland.

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

If you are simply researching potential flights to Portland, momondo offers a useful price alert feature which will track prices for flights to Portland from Sydney and alert you when they change.

An easier way to manage your Portland trip

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