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$1,439+ Cheap flights from Portland, ME (PWM) to Australia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Oct 23 — Oct 301
Thu 10/23
Thu 10/30
1 adult, Economy
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Cheap flight deals from Portland to Australia

Keep the following information in mind while searching for Portland to Australia flight deals. Data was last updated September 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,439
(American Airlines)
Provider with most accurate pricing for Portland-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Portland-Sydney Kingsford Smith flights.
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From Portland to Australia
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Find 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 September 23, 2025.

This American Airlines deal was found by Cheapflights users on 9/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:26 pmPWM - SYD
2 stops28h 34mAmerican Airlines
Fri 11/1411:20 amSYD - PWM
2 stops28h 39mAmerican Airlines
Deal found 9/23$1,439
This United Airlines deal was found by Cheapflights users on 9/22. 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 11/132:20 pmPWM - SYD
2 stops26h 45mUnited Airlines
Mon 11/1711:50 amSYD - PWM
2 stops27h 27mUnited Airlines
Deal found 9/22$1,655
This Air Canada deal was found by Cheapflights users on 9/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:45 amPWM - SYD
2 stops30h 50mMultiple Airlines
Fri 11/1411:20 amSYD - PWM
3 stops27h 57mMultiple Airlines
Deal found 9/23$2,527
This Air Canada deal was found by Cheapflights users on 9/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amPWM - SYD
3 stops35h 35mAir Canada
Mon 11/1711:20 amSYD - PWM
2 stops27h 57mAir Canada
Deal found 9/21$3,080
This Gotogate deal was found by Cheapflights users on 9/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:00 amPWM - SYD
3 stops35h 35mAir Canada
Fri 11/1411:20 amSYD - PWM
3 stops37h 59mAir Canada
Deal found 9/23$28,584

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 September 23, 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

Fri 11/7

12:26 pm-9:00 am

2 stops28h 34m

Sydney Kingsford Smith

Fri 11/14

11:20 am-11:59 pm

2 stops28h 39m

$1,439

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 3/18

4:11 pm-9:00 am

2 stops25h 49m

Sydney Kingsford Smith

Wed 4/1

10:10 am-11:40 pm

2 stops28h 30m

$1,440

PortlandSydney

PWM - SYD

PWMSYD

Portland

Mon 2/9

1:22 pm-9:00 am

2 stops27h 38m

Sydney Kingsford Smith

Sat 3/28

1:05 pm-11:40 pm

2 stops25h 35m

$1,441

PortlandSydney

PWM - SYD

PWMSYD

Portland

Mon 2/9

9:00 am-7:00 am

2 stops30h 00m

Sydney Kingsford Smith

Sat 3/28

10:20 am-11:17 pm

2 stops27h 57m

$1,457

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 11/13

3:00 pm-9:05 am

2 stops26h 05m

Sydney Kingsford Smith

Mon 11/17

12:10 pm-6:59 pm

2 stops22h 49m

$1,655

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 3/18

4:48 pm-9:15 am

2 stops25h 27m

Sydney Kingsford Smith

Wed 4/1

11:20 am-9:27 pm

3 stops25h 07m

$1,787

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 3/18

6:00 am-8:35 am

3 stops35h 35m

Sydney Kingsford Smith

Wed 4/1

10:20 am-10:44 am

3 stops39h 24m

$2,394

PortlandSydney

PWM - SYD

PWMSYD

Portland

Mon 2/9

4:16 pm-6:50 pm

2 stops34h 34m

Sydney Kingsford Smith

Sat 3/28

9:15 pm-11:36 pm

3 stops65h 21m

$2,504

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

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, March is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $1,032). Flying from Portland, Maine to Australia in December is currently the most expensive (average of $1,627). 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 28h 34m. 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, March is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $1,032). Flying from Portland, Maine to Australia in December is currently the most expensive (average of $1,627). 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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