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Cheap flights from Sydney to Portland from $611

SYD — PDX
10 Oct — 17 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Portland

Tue 20/1014:15 -
2 stops24h 18m
Tue 27/1010:48 -
2 stops31h 47m
Deal found 5/9$1,211
Fri 23/1014:15 -
2 stops24h 18m
Fri 30/1018:18 -
2 stops24h 17m
Deal found 8/9$1,258
Thu 10/909:10 -
2 stops24h 44m
Wed 23/912:01 -
2 stops26h 04m
Deal found 9/9$1,312
Thu 10/920:45 -
1 stop17h 05m
Wed 23/908:00 -
1 stop17h 50m
Deal found 9/9$1,328
Thu 10/910:20 -
1 stop16h 51m
Wed 23/912:45 -
2 stops25h 15m
Deal found 9/9$1,362
Mon 14/909:30 -
2 stops28h 35m
Tue 29/912:45 -
2 stops25h 15m
Deal found 9/9$1,364
Thu 22/1014:15 -
2 stops37h 56m
Thu 29/1011:06 -
1 stop25h 19m
Deal found 7/9$1,386
Thu 22/1010:10 -
2 stops24h 16m
Thu 29/1015:00 -
2 stops24h 00m
Deal found 7/9$1,423
Wed 7/1010:10 -
1 stop18h 34m
Wed 14/1017:03 -
1 stop20h 27m
Deal found 8/9$1,430
Sun 13/910:20 -
1 stop16h 51m
Mon 28/905:30 -
1 stop32h 25m
Deal found 8/9$1,437

Find flight deals from Sydney to Portland

Round-trip from

$1,211

One-way from

$611

Popular in

March

Cheapest in

January

Average price

$1,671
20/10-27/10
  • 20/10-27/10
  • 4 total stops
  • 56h 05m total
  • Sydney to Portland
Search Deals
11/11-31/12
  • 11/11-31/12
  • 2 total stops
  • 39h 11m total
  • Sydney to Portland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($171 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest return flight

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 3/3

14:00-13:50

3 stops42h 50m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$635

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Mon 1/2

14:00-13:48

3 stops42h 48m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$670

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 18/11

11:10-00:01

1 stop31h 51m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,004

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Tue 6/10

10:30-18:31

3 stops26h 01m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,020
Fastest return journey

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 11/11

10:40-09:59

1 stop18h 19m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,020

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Tue 13/10

10:30-18:31

3 stops26h 01m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,020

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Mon 12/10

11:20-11:33

2 stops42h 13m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,022

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Sun 1/11

10:40-11:14

1 stop18h 34m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,106

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 23/12

13:20-18:20

1 stop24h 00m

Portland

Wed 31/12

00:00-18:00

Nonstop0h 00m

$1,350

SydneyPortland

SYD Sydney Kingsford Smith - PDX Portland

SYDPDX

Sydney Kingsford Smith

Wed 7/10

10:10-10:44

1 stop18h 34m

Portland

Wed 14/10

17:03-07:30

1 stop20h 27m

$1,430

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Sydney with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sydney to Portland

How far ahead should I book a flight from Sydney to Portland?

Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sydney to Portland?

Currently, January is the cheapest month in which you can book a flight from Sydney to Portland (average of $1,148). Flying from Sydney to Portland in March is currently the most expensive (average of $1,714). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Sydney to Portland?

Airfare is below average for this route at the moment.

Sydney to Portland flights typically cost between $1,539 and $1,706 in October.
The cheapest return price found within the last 5 days was $1,211 on Multiple Airlines (20 Oct–27 Oct).

Reviews of airlines servicing Portland

Read reviews from past customers who have flown with Delta,Qantas Airways, andUnited Airlines from Sydney to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,554 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
Delta
7.8
Good
8,554 reviews
Delta
7.8
Good
8,554 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
Qantas Airways
7.5
Good
1,092 reviews
Delta
7.8
Good
8,554 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
United Airlines
7.4
Good
10,194 reviews
Delta
7.8
Good
8,554 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
Air Canada
7.1
Good
11,609 reviews
Delta
7.8
Good
8,554 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Related info for your journey

  • How long is the flight from Sydney to Portland?

    United Airlines can get you from Sydney to Portland in just under 16h 50m. Your travel time can differ by up to . There are 12350 km between Sydney and Portland.

  • What are the cheapest airlines flying from Sydney to Portland round-trip?

    Currently priced at $731, Delta will fly you from Sydney to Portland and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from $888 and $1,087, respectively. These flights start at 51% lower than the current average price 3 months from now.

  • Can I find deals for flights from Sydney to Portland that include hotel bookings?

    Yes. In addition to deals on Sydney to Portland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Portland.

  • Can I find deals for business class flights from Sydney to Portland?

    Yes. Cheapflights offers flight deals from Sydney to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Portland?

    Currently, January is the cheapest month in which you can book a flight from Sydney to Portland (average of $1,148). Flying from Sydney to Portland in March is currently the most expensive (average of $1,714). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Sydney to Portland

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$731Average$1,636FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$888Average$1,527FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,087Average$1,541FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,252Average$1,554FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sydney to Portland?

Cheapflights helps you search for flights from Sydney to Portland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Portland?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sydney to Portland for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sydney to Portland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Portland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sydney to Portland become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portland from Sydney today and book when prices fit your budget.

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