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$420+ Cheap flights from Australia to Portland (PDX)

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PDX
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Australia to Portland

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 December 26, 2025.

This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:00 pmMEL - PDX
2 stops28h 59mUnited Airlines
Sat 1/32:45 pmPDX - MEL
2 stops23h 45mUnited Airlines
Deal found 12/24$881
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:00 pmMEL - PDX
1 stop28h 46mUnited Airlines
Fri 1/23:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Deal found 12/25$884
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:10 amMEL - PDX
2 stops32h 45mDelta
Thu 1/17:55 pmPDX - MEL
1 stop41h 05mDelta
Deal found 12/24$888
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:10 amMEL - PDX
2 stops25h 06mDelta
Fri 1/211:59 amPDX - MEL
1 stop25h 01mDelta
Deal found 12/24$889
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:40 amBNE - PDX
2 stops40h 21mUnited Airlines
Sun 1/47:45 pmPDX - BNE
2 stops43h 45mUnited Airlines
Deal found 12/23$942
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:10 amMEL - PDX
2 stops25h 06mDelta
Wed 12/315:30 amPDX - MEL
2 stops31h 30mDelta
Deal found 12/24$1,116
This Aunt Betty deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:00 amSYD - PDX
2 stops19h 15mMultiple Airlines
Tue 1/139:50 amPDX - SYD
1 stop28h 45mMultiple Airlines
Deal found 12/25$1,243
This United Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:00 pmMEL - PDX
2 stops27h 07mUnited Airlines
Sat 1/32:45 pmPDX - MEL
2 stops23h 45mUnited Airlines
Deal found 12/24$1,280
This BYOjet deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:20 amSYD - PDX
1 stop16h 55mAir Canada
Tue 1/139:50 amPDX - SYD
1 stop26h 05mAir Canada
Deal found 12/25$1,292
This SmartFares deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:30 pmSYD - PDX
2 stops34h 45mMultiple Airlines
Mon 1/127:00 pmPDX - SYD
1 stop40h 55mMultiple Airlines
Deal found 12/24$1,297
This Aunt Betty deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:20 amSYD - PDX
1 stop16h 55mAir Canada
Mon 1/127:00 pmPDX - SYD
1 stop40h 55mAir Canada
Deal found 12/24$1,319
This Kiwi.com deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:00 pmMEL - PDX
2 stops42h 43mMultiple Airlines
Fri 1/26:20 amPDX - MEL
1 stop32h 10mMultiple Airlines
Deal found 12/24$1,532

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 December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$692
(BYOjet)

One-way from

$420
(Air Canada)

Popular in

January

Cheapest in

October

Average price

$1,225
Provider with most accurate pricing for Sydney Kingsford Smith-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Portland flights.
Search Deals
From Australia to Portland
Search Deals
One-way flight from Australia to Portland
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Australia to Portland that are best for you.

Fly from

Australia

Fly to

Portland

Route

Depart

Return

Price

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Wed 3/18

9:45 am-2:40 pm

1 stop21h 55m

Portland

Sun 3/22

7:05 pm-1:30 pm

2 stops25h 25m

$692

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Wed 3/18

7:40 pm-9:05 pm

2 stops42h 25m

Portland

Sun 3/22

5:42 pm-5:00 am

1 stop18h 18m

$707

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Sat 2/7

10:45 am-9:15 am

1 stop16h 30m

Portland

Sat 2/14

7:05 pm-8:45 am

1 stop19h 40m

$707

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Sat 2/7

11:40 am-12:33 pm

1 stop18h 53m

Portland

Sat 2/14

11:59 pm-7:30 am

2 stops37h 31m

$717

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Wed 3/18

10:05 am-4:56 pm

2 stops23h 51m

Portland

Sun 3/22

7:43 pm-7:20 am

2 stops42h 37m

$717

BrisbanePortland

BNE - PDX

BNEPDX

Brisbane

Wed 1/14

11:40 am-12:33 pm

1 stop18h 53m

Portland

Thu 1/22

5:00 am-7:30 am

2 stops32h 30m

$733

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Thu 4/9

6:00 am-9:15 am

2 stops20h 15m

Portland

Fri 4/17

3:15 pm-11:05 am

2 stops26h 50m

$874

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Tue 4/21

6:00 am-2:40 pm

2 stops25h 40m

Portland

Wed 4/29

7:05 pm-11:35 am

2 stops23h 30m

$874

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sat 2/7

1:00 pm-6:55 pm

1 stop24h 55m

Portland

Sat 2/14

3:40 pm-10:00 am

1 stop23h 20m

$881

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Tue 4/21

10:55 am-9:14 pm

2 stops27h 19m

Portland

Wed 4/29

7:14 pm-8:15 am

1 stop20h 01m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 55 results
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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 round-trip 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, March is the cheapest month in which you can book a flight from Australia to Portland (average of $498). Flying from Australia to Portland in May is currently the most expensive (average of $884). 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.

What is the cheapest time of day to fly from AU to PDX?

Find hourly flight availability from Australia to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Australia to Portland in the afternoon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

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 December 26, 2025.
See what other customers who have flown with United Airlines and Air Canada from Australia to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,115 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,115 reviews
United Airlines
7.4
Good
9,115 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Air Canada
7.1
Good
10,561 reviews
United Airlines
7.4
Good
9,115 reviews

Crew

8.1

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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?

    If you book a flight to Portland from Australia, you will be flying to Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

  • How long is the flight from Australia to Portland?

    Departing from Australia to Portland will take you 21h 55m. There are 7282 mi between Australia and Portland. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Australia to Portland one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $497. Air Canada flights start at $501 while deals on Hawaiian Airlines start at $602 one-way.

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

    While some choose either Sydney Kingsford Smith - Portland or Brisbane - Portland, Melbourne - Portland is the most popular route from Australia to 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 vacation 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, March is the cheapest month in which you can book a flight from Australia to Portland (average of $498). Flying from Australia to Portland in May is currently the most expensive (average of $884). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
Gresham

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.

Top 2 airlines flying from Australia to Portland

Discover the top 2 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 2,558,603 searches. Data last updated December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$757Average$1,373FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$933Average$1,280FlexibilityNo cancel feeOn-time67%

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