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$959 Cheap flights to Portland

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Find the cheapest flights from Australia to Portland

Cheap return flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
21:40 - 20:49SYD  Sydney Kingsford Smith-PDX Portland
18h 09m1 stop Honolulu
Alaska Airlines Logo
10:30 - 19:45PDX  Portland-SYD Sydney Kingsford Smith
38h 15m1 stop Honolulu
$1,321Alaska Airlines
Tue, 10 Nov - Tue, 24 Nov
Qantas Airways Logo
10:10 - 22:49SYD  Sydney Kingsford Smith-PDX Portland
30h 39m1 stop Los Angeles Los Angeles
Qantas Airways Logo
18:18 - 08:05PDX  Portland-SYD Sydney Kingsford Smith
19h 47m1 stop Los Angeles Los Angeles
$1,343Qantas Airways
Mon, 5 Oct - Sun, 18 Oct
American Airlines Logo
11:10 - 17:48SYD  Sydney Kingsford Smith-PDX Portland
25h 38m2 stops Los Angeles Los Angeles Dallas/Fort Worth
American Airlines Logo
06:45 - 09:00PDX  Portland-SYD Sydney Kingsford Smith
31h 15m1 stop Los Angeles Los Angeles
$1,358American Airlines
Wed, 11 Nov - Wed, 25 Nov
United Airlines Logo
11:50 - 12:22SYD  Sydney Kingsford Smith-PDX Portland
19h 32m1 stop San Francisco
United Airlines Logo
19:26 - 09:20PDX  Portland-SYD Sydney Kingsford Smith
18h 54m1 stop San Francisco
$1,364United Airlines
Tue, 10 Nov - Mon, 23 Nov
United Airlines Logo
09:20 - 12:13SYD  Sydney Kingsford Smith-PDX Portland
21h 53m1 stop Houston George Bush Intcntl
United Airlines Logo
07:00 - 07:00PDX  Portland-SYD Sydney Kingsford Smith
29h 00m1 stop Houston George Bush Intcntl
$1,364United Airlines
Tue, 10 Nov - Sun, 22 Nov
Delta Logo
10:40 - 12:18BNE  Brisbane-PDX Portland
19h 38m1 stop Los Angeles Los Angeles
Delta Logo
06:40 - 08:30PDX  Portland-BNE Brisbane
31h 50m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles
$1,390Delta
Sun, 24 Jan - Mon, 8 Feb
Delta Logo
10:40 - 13:08BNE  Brisbane-PDX Portland
20h 28m2 stops Los Angeles Los Angeles Seattle/Tacoma Intl
Delta Logo
17:45 - 08:30PDX  Portland-BNE Brisbane
20h 45m2 stops Seattle/Tacoma Intl Los Angeles Los Angeles
$1,390Delta
Sun, 24 Jan - Mon, 8 Feb
Qantas Airways Logo
11:10 - 10:50SYD  Sydney Kingsford Smith-PDX Portland
18h 40m1 stop Los Angeles Los Angeles
Qantas Airways Logo
14:49 - 09:00PDX  Portland-SYD Sydney Kingsford Smith
23h 11m1 stop Los Angeles Los Angeles
$1,480Qantas Airways
Thu, 12 Nov - Sat, 21 Nov
Air Canada Logo
11:20 - 09:26SYD  Sydney Kingsford Smith-PDX Portland
17h 06m1 stop Vancouver Intl
Air Canada Logo
15:15 - 16:10PDX  Portland-SYD Sydney Kingsford Smith
29h 55m2 stops Vancouver Intl Auckland Intl
$1,616Air Canada
Mon, 30 Nov - Mon, 14 Dec
Air Canada Logo
11:20 - 09:26SYD  Sydney Kingsford Smith-PDX Portland
17h 06m1 stop Vancouver Intl
Air Canada Logo
19:10 - 09:35PDX  Portland-SYD Sydney Kingsford Smith
19h 25m1 stop Vancouver Intl
$1,633Air Canada
Mon, 30 Nov - Mon, 14 Dec

momondo Fare Finder

 
Use the filters below to find and compare flights to Portland that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Tue 10/11

21:40-20:49

1 stop18h 09m

Portland

Tue 24/11

10:30-19:45

1 stop38h 15m

$1,321

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Mon 5/10

10:10-22:49

1 stop30h 39m

Portland

Sun 18/10

18:18-08:05

1 stop19h 47m

$1,343

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 11/11

11:10-17:48

2 stops25h 38m

Portland

Wed 25/11

06:45-09:00

1 stop31h 15m

$1,358

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Tue 10/11

11:50-12:22

1 stop19h 32m

Portland

Mon 23/11

19:26-09:20

1 stop18h 54m

$1,364

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Tue 10/11

09:20-12:13

1 stop21h 53m

Portland

Sun 22/11

07:00-07:00

1 stop29h 00m

$1,364

BrisbanePortland

BNE Brisbane - PDX Portland

BNEPDX

Brisbane

Sun 24/1

10:40-12:18

1 stop19h 38m

Portland

Mon 8/2

06:40-08:30

2 stops31h 50m

$1,390

BrisbanePortland

BNE Brisbane - PDX Portland

BNEPDX

Brisbane

Sun 24/1

10:40-13:08

2 stops20h 28m

Portland

Mon 8/2

17:45-08:30

2 stops20h 45m

$1,390

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Thu 12/11

11:10-10:50

1 stop18h 40m

Portland

Sat 21/11

14:49-09:00

1 stop23h 11m

$1,480

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Mon 30/11

11:20-09:26

1 stop17h 06m

Portland

Mon 14/12

15:15-16:10

2 stops29h 55m

$1,616
Fastest return journey

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Mon 30/11

11:20-09:26

1 stop17h 06m

Portland

Mon 14/12

19:10-09:35

1 stop19h 25m

$1,633

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

Portland flights insights and trends

Explore insights for your Portland flight to craft the best travel plan

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from Australia is in January. Flight prices, which tend to average around $1,156, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,272.

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

You are more likely to see cheaper flights to Portland from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $1,526 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Australia for as low as $1,301 on momondo.

Cheapest flights to Portland

Find the cheapest flights to Portland from your nearest city or airport
Find flights from Sydney to Portland
CHEAPEST MONTH TO FLY TO PORTLAND FROM SYDNEYJanuary25% cheaperFlying from Sydney to Portland costs on average just $1,156 in January
MOST EXPENSIVE MONTH TO FLY TO PORTLAND FROM SYDNEYMarch14% more expensiveIt costs about $1,746 for flights to Portland from Sydney in March
MOST POPULAR MONTH TO FLY TO PORTLAND FROM SYDNEYMay560% more users visitedMore momondo users searched in flights to Portland from Sydney in May than any other month

Cheap Portland flight deals and tips

Summary info about Portland flight prices, duration and airlines

Best One-Way Price

$959

Best Round-Trip Price

$1,321

Fastest flight time

24h 35m

Popular in

May
The best one-way flight price to Portland from Australia in the last 5 days is $959 (Sydney Kingsford Smith to Portland).
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The best return flight price to Portland from Australia in the last 5 days is $1,321 (Sydney Kingsford Smith to Portland).
Search Deals
The fastest flight to Portland from Australia takes 24h 35m (Sydney Kingsford Smith to Portland).
Search Deals
May has the highest demand for flights to Portland, with a 13% price increase on average.
Search Deals

Frequently asked questions about flying to Portland

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

In general, most travellers find the cheapest time to book a flight to Portland is about 3 days prior to their departure date, when tickets on average are $1,526. Keep in mind that you might be able to find cheaper flights to Portland at any time. In fact, our users found flights for as low as $887 in the past 72 hours.

When did momondo last update prices for flights to Portland Airport?

Prices for flights to Portland Airport are updated daily.

How many operators does momondo search for flights to Portland Airport?

The number of operators available for flights to Portland Airport is 4 as of September 2026.

How old do you have to be to fly 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 to Portland Airport.

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

The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal 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.

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

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

How can momondo help me find flights to Portland?

Once all potential Portland flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

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

Yes momondo offers price alerts on flights to Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Portland

Popular Flights to Portland

Sydney Kingsford Smith to Portland Flightsfrom $963
Melbourne to Portland Flightsfrom $1,043
Brisbane to Portland Flightsfrom $1,083
Perth to Portland Flightsfrom $1,363
Adelaide to Portland Flightsfrom $1,118
Cairns to Portland Flightsfrom $2,288
Canberra to Portland Flightsfrom $1,310