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$763+ Cheap flights from Portland, ME (PWM) to Australia

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Portland to Australia

Cheapest flights from Portland to Australia
Explore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

This Ovago deal was found by Cheapflights users on 12/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:00 amPWM - SYD
2 stops33h 00mQantas Airways
Fri 1/29:25 pmSYD - PWM
2 stops36h 51mQantas Airways
Deal found 12/27$4,241
This Qantas Airways deal was found by Cheapflights users on 12/27. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:36 pmPWM - SYD
3 stops28h 44mMultiple Airlines
Fri 1/22:05 pmSYD - PWM
2 stops25h 40mMultiple Airlines
Deal found 12/27$6,134

Find flight deals from Portland to Australia

Keep the following information in mind while searching for Portland to Australia flight deals. Data was last updated December 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,634
(United Airlines)

One-way from

$763
(United Airlines)
Provider with most accurate pricing for Portland-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Sydney Kingsford Smith flights.
Search Deals
From Portland to Australia
Search Deals
One-way flight from Portland to Australia
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Australia 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 29, 2025.
Use the filters below to find and compare flights from Portland to Australia that are best for you.

Fly from

Portland

Fly to

Australia

Route

Depart

Return

Price

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/22

5:45 am-7:00 am

2 stops33h 15m

Sydney Kingsford Smith

Sat 4/4

10:30 am-9:40 pm

2 stops26h 10m

$1,634

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 2/11

2:31 pm-9:05 am

2 stops26h 34m

Sydney Kingsford Smith

Wed 2/18

11:50 am-6:56 pm

2 stops23h 06m

$1,719

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/22

6:00 am-9:35 am

2 stops35h 35m

Sydney Kingsford Smith

Sat 4/4

10:20 am-9:25 am

3 stops38h 05m

$2,158

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/8

6:00 am-9:35 am

3 stops59h 35m

Sydney Kingsford Smith

Thu 2/12

11:20 am-11:20 pm

2 stops28h 00m

$2,178

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/8

2:31 pm-9:05 am

2 stops26h 34m

Sydney Kingsford Smith

Thu 2/12

12:10 pm-8:28 pm

2 stops24h 18m

$2,270

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 3/10

2:32 pm-9:05 am

2 stops27h 33m

$763

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 3/10

6:00 am-8:35 am

2 stops35h 35m

$1,066

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Best time to book a flight from Portland to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Portland 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 Portland to Australia

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

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $252). Flying from Portland, Maine to Australia in January is currently the most expensive (average of $924). 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.

Related info for your journey

Find useful and relevant information for your journey from Portland to Australia. 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 from for flights from Portland to Australia?

    Most people fly from Portland (PWM) if they book a flight from Portland to Australia. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Australia?

    Departing from Portland, Maine to Australia will take you 33h 15m. The distance from Portland, Maine to Australia is about 10124 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $252). Flying from Portland, Maine to Australia in January is currently the most expensive (average of $924). 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

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