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Cheap flights from Australia to Portland from $686

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
29 Aug — 5 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Australia to Portland
Explore the most affordable flight options available from Australia to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2026.

Mon 3/809:10
SYD
-
PDX
1 stop24h 28m
American Airlines
Tue 18/811:58
PDX
-
SYD
2 stops26h 07m
American Airlines
Deal found 30/7$1,288
Wed 21/1010:10
SYD
-
PDX
1 stop21h 25m
Qantas Airways
Wed 4/1118:00
PDX
-
SYD
1 stop20h 00m
Qantas Airways
Deal found 29/7$1,292
Tue 25/809:10
SYD
-
PDX
1 stop18h 40m
Multiple Airlines
Tue 1/917:55
PDX
-
SYD
1 stop20h 10m
Multiple Airlines
Deal found 28/7$1,294
Tue 25/809:10
SYD
-
PDX
1 stop31h 49m
Qantas Airways
Tue 1/917:55
PDX
-
SYD
1 stop20h 10m
Qantas Airways
Deal found 28/7$1,295
Tue 25/809:10
SYD
-
PDX
2 stops24h 41m
American Airlines
Tue 1/906:35
PDX
-
SYD
1 stop31h 30m
American Airlines
Deal found 28/7$1,296
Mon 3/809:10
SYD
-
PDX
1 stop21h 34m
Multiple Airlines
Tue 18/817:37
PDX
-
SYD
1 stop20h 28m
Multiple Airlines
Deal found 30/7$1,311
Wed 12/809:10
SYD
-
PDX
1 stop21h 34m
Multiple Airlines
Wed 9/915:33
PDX
-
SYD
1 stop22h 32m
Multiple Airlines
Deal found 29/7$1,312
Wed 12/809:10
SYD
-
PDX
2 stops24h 41m
American Airlines
Wed 9/906:30
PDX
-
SYD
1 stop31h 35m
American Airlines
Deal found 30/7$1,322
Sat 8/810:55
MEL
-
PDX
2 stops39h 53m
United Airlines
Fri 28/812:45
PDX
-
MEL
2 stops25h 45m
United Airlines
Deal found 30/7$1,371
Mon 3/810:55
MEL
-
PDX
2 stops29h 18m
United Airlines
Wed 12/812:45
PDX
-
MEL
2 stops25h 45m
United Airlines
Deal found 29/7$1,377
Tue 1/920:35
BNE
-
PDX
1 stop20h 24m
Qantas Airways
Sun 6/914:53
PDX
-
BNE
1 stop21h 07m
Qantas Airways
Deal found 29/7$1,417
Tue 1/920:35
BNE
-
PDX
1 stop20h 24m
Multiple Airlines
Sun 6/910:30
PDX
-
BNE
3 stops25h 30m
Multiple Airlines
Deal found 29/7$1,462

Find flight deals from Australia to Portland

Keep the following information in mind while searching for Australia to Portland flight deals. Data was last updated 30 July 2026.

Round-trip from

$1,288

One-way from

$686

Popular in

March

Cheapest in

January

Average price

$1,371
Qantas Airways
  • Qantas Airways
  • 21/10-4/11
  • 2 total stops
  • 41h 25m total
  • Australia to Portland
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 32h 40m total
  • Australia to Portland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($218 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Australia 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, Cheapflights users made 647,157 searches. Data last updated 30 July 2026.
Use the filters below to find and compare flights from Australia to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Tue 25/8

09:10-10:50

1 stop18h 40m

Portland

Tue 1/9

17:55-07:05

1 stop20h 10m

$1,294

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 12/8

09:30-15:05

2 stops22h 35m

Portland

Wed 9/9

12:45-07:00

2 stops25h 15m

$1,340

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Wed 21/10

10:10-13:35

1 stop21h 25m

Portland

Wed 4/11

12:01-06:25

3 stops23h 24m

$1,381

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Mon 26/10

11:20-16:34

1 stop23h 14m

Portland

Wed 4/11

12:01-06:25

3 stops23h 24m

$1,387

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Tue 27/10

21:40-06:19

1 stop26h 39m

Portland

Sat 31/10

08:00-19:45

1 stop17h 45m

$1,391

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 27/8

09:30-17:49

2 stops25h 19m

Portland

Thu 3/9

12:45-07:00

2 stops25h 15m

$1,399

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Tue 1/9

20:35-23:59

1 stop20h 24m

Portland

Sun 6/9

14:53-05:00

1 stop21h 07m

$1,417

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Tue 18/8

09:30-18:19

3 stops25h 49m

Portland

Tue 1/9

12:45-07:00

2 stops25h 15m

$1,452

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 10/9

09:15-20:02

2 stops27h 47m

Portland

Thu 17/9

17:10-06:50

2 stops20h 40m

$1,458

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Tue 1/9

20:35-23:59

1 stop20h 24m

Portland

Sun 6/9

10:30-05:00

3 stops25h 30m

$1,462

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from Australia to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Australia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Australia to Portland (average of $1,259). Flying from Australia to Portland in July is currently the most expensive (average of $1,794). 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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 30 July 2026.
Check out reviews from past customers who have flown with Delta,Qantas Airways, andUnited Airlines from Australia to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,490 reviews
Check prices

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Delta
7.8
Good
8,490 reviews
Delta
7.8
Good
8,490 reviews
Check prices

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Qantas Airways
7.5
Good
1,073 reviews
Delta
7.8
Good
8,490 reviews
Check prices

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
United Airlines
7.4
Good
10,047 reviews
Delta
7.8
Good
8,490 reviews
Check prices

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,
Air Canada
7.1
Good
11,406 reviews
Delta
7.8
Good
8,490 reviews
Check prices

Crew

8.5

Boarding

8.1

Overall

7.8

Comfort

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

Find useful and relevant information for your journey from Australia to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Portland from Australia?

    Portland (PDX), located 9.7 km from the city centre, is the airport you fly into when you book flights from Australia to Portland.

  • How long is the flight from Australia to Portland?

    United Airlines and Qantas Airways can get you from Australia to Portland in just under 20h 24m. Your travel time can differ by up to 2h 11m. The distance between Australia and Portland is about 11719 km. This flight may include one or multiple stops.

  • What are the most popular routes from Australia to Portland?

    The most popular flight routes from Australia to Portland are Sydney Kingsford Smith - Portland, Melbourne - Portland and Perth - Portland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia 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 Australia to Portland?

    Currently, October is the cheapest month in which you can book a flight from Australia to Portland (average of $1,259). Flying from Australia to Portland in July is currently the most expensive (average of $1,794). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Australia to Portland on these airlines

Choose from the following airlines for your flight from Australia to Portland. Flights are based on user searches made on Cheapflights and were last updated on 30 July 2026.
United Airlines flights from Australia to Portland
Air Canada flights from Australia to Portland
Qantas Airways flights from Australia to Portland

Top 4 airlines flying from Australia to Portland

Discover the top 4 airlines that operate flights from Australia to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$760Average$1,701FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$923Average$1,760FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,130Average$1,534FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,302Average$1,652FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Australia 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 Australia to Portland?

Cheapflights simply makes it quick and affordable to book flights from Australia to Portland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Portland from Australia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Australia to Portland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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