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Cheap flights from Australia to Portland from $727

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
8 Jun — 15 Jun1
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 9 May 2026.

Sat 8/810:55
MEL
-
PDX
1 stop26h 59m
United Airlines
Fri 28/810:35
PDX
-
MEL
2 stops28h 40m
United Airlines
Deal found 5/5$1,342
Mon 8/610:55
MEL
-
PDX
1 stop22h 52m
Lufthansa
Mon 15/608:35
PDX
-
MEL
1 stop30h 40m
Lufthansa
Deal found 5/5$1,363
Thu 4/610:55
MEL
-
PDX
1 stop30h 55m
Lufthansa
Thu 11/613:14
PDX
-
MEL
1 stop26h 01m
Lufthansa
Deal found 7/5$1,373
Mon 11/509:10
SYD
-
PDX
1 stop29h 25m
Qantas Airways
Tue 26/515:27
PDX
-
SYD
1 stop22h 38m
Qantas Airways
Deal found 7/5$1,410
Tue 12/509:10
SYD
-
PDX
1 stop21h 16m
Qantas Airways
Wed 27/517:40
PDX
-
SYD
1 stop20h 25m
Qantas Airways
Deal found 8/5$1,415
Mon 11/509:10
SYD
-
PDX
1 stop29h 25m
American Airlines
Tue 26/513:34
PDX
-
SYD
2 stops24h 31m
American Airlines
Deal found 7/5$1,417
Tue 12/509:30
SYD
-
PDX
3 stops26h 16m
United Airlines
Wed 27/512:50
PDX
-
SYD
2 stops25h 10m
United Airlines
Deal found 8/5$1,442
Mon 11/509:30
SYD
-
PDX
3 stops26h 16m
United Airlines
Tue 26/508:50
PDX
-
SYD
2 stops29h 10m
United Airlines
Deal found 7/5$1,443
Thu 11/609:10
SYD
-
PDX
1 stop31h 46m
Qantas Airways
Sat 27/607:00
PDX
-
SYD
1 stop31h 05m
Qantas Airways
Deal found 8/5$1,476
Fri 4/913:15
SYD
-
PDX
2 stops24h 35m
Multiple Airlines
Fri 18/917:50
PDX
-
SYD
2 stops25h 00m
Multiple Airlines
Deal found 5/5$1,479
Fri 15/509:10
SYD
-
PDX
1 stop20h 29m
American Airlines
Mon 25/515:27
PDX
-
SYD
1 stop22h 38m
American Airlines
Deal found 7/5$1,486
Thu 4/609:45
MEL
-
PDX
1 stop22h 12m
American Airlines
Thu 11/611:59
PDX
-
MEL
2 stops25h 46m
American Airlines
Deal found 7/5$1,497

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 9 May 2026.

Round-trip from

$1,342

One-way from

$727

Popular in

May

Cheapest in

November

Average price

$1,758
United Airlines
  • United Airlines
  • 8/8-28/8
  • 2 total stops
  • 57h 39m total
  • Australia to Portland
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 39h 26m total
  • Australia to Portland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($330 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 9 May 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

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sat 8/8

10:55-20:54

1 stop26h 59m

Portland

Fri 28/8

10:35-08:15

2 stops28h 40m

$1,342

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Mon 8/6

10:55-16:47

1 stop22h 52m

Portland

Mon 15/6

08:35-08:15

1 stop30h 40m

$1,363

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 4/9

13:15-20:50

2 stops24h 35m

Portland

Fri 18/9

17:50-11:50

2 stops25h 00m

$1,479

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 23/5

09:20-09:30

1 stop17h 10m

Portland

Wed 27/5

19:45-21:40

2 stops32h 55m

$1,628

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Mon 8/6

10:55-12:09

1 stop18h 14m

Portland

Mon 15/6

18:03-12:20

2 stops25h 17m

$1,672

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 4/9

09:10-22:39

1 stop30h 29m

Portland

Fri 18/9

17:35-07:05

1 stop20h 30m

$1,714

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Fri 14/8

06:00-09:31

2 stops20h 31m

Portland

Tue 18/8

15:30-11:05

2 stops26h 35m

$1,714

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sat 8/8

06:00-10:20

2 stops21h 20m

Portland

Fri 28/8

11:09-11:20

2 stops31h 11m

$1,724

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Thu 13/8

06:00-14:51

2 stops25h 51m

Portland

Mon 17/8

10:10-11:05

2 stops31h 55m

$1,743

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 8/8

20:45-06:11

1 stop26h 26m

Portland

Wed 12/8

07:46-18:50

1 stop18h 04m

$1,843

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 60 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

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

Booking 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from Australia 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 Australia to Portland?

Currently, January is the cheapest month in which you can book a flight from Australia to Portland (average of $702). Flying from Australia to Portland in May is currently the most expensive (average of $1,165). 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 9 May 2026.
Check out reviews from past customers who have flown with Alaska Airlines,Hawaiian Airlines, andQantas Airways 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.
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,349 reviews
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Qantas Airways
7.5
Good
1,033 reviews
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,695 reviews
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Air Canada
7.1
Good
11,010 reviews
Alaska Airlines
7.9
Good
12,349 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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, Lufthansa, and Air Canada can get you from Australia to Portland in just under 17h 10m. Your travel time can differ by up to 9h 49m. The distance between Australia and Portland is about 12350 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 Melbourne - Portland, Sydney Kingsford Smith - Portland and Brisbane - 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, January is the cheapest month in which you can book a flight from Australia to Portland (average of $702). Flying from Australia to Portland in May is currently the most expensive (average of $1,165). 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 9 May 2026.
United Airlines flights from Australia to Portland
Air Canada flights from Australia to Portland
Qantas Airways flights from Australia to Portland

Top 7 airlines flying from Australia to Portland

Discover the top 7 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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$702Average$1,329FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$730Average$1,634FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$921Average$1,432FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Hawaiian AirlinesCheapest$1,106Average$1,824FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Alaska AirlinesCheapest$1,135Average$1,689FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Alaska AirlinesCheapest$1,247Average$1,758FlexibilityNo cancel feeOn-timeN/A
Search Alaska Airlines flights
Qantas AirwaysCheapest$1,251Average$1,600FlexibilityNo 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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