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$902+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
May 6 — May 131
Wed 5/6
Wed 5/13
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 April 6, 2026.

This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sun 5/176:00 am
PWM
-
SYD
2 stops35h 00m
United Airlines
Sun 5/2410:20 am
SYD
-
PWM
2 stops23h 07m
United Airlines
Deal found 4/2$1,570
This United Airlines deal was found by Cheapflights users on 4/2. 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 6/66:00 am
PWM
-
SYD
3 stops35h 00m
United Airlines
Tue 8/189:30 am
SYD
-
PWM
2 stops26h 31m
United Airlines
Deal found 4/2$1,620
This United Airlines deal was found by Cheapflights users on 4/1. 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 5/163:23 pm
PWM
-
SYD
2 stops25h 37m
United Airlines
Sat 5/2310:20 am
SYD
-
PWM
2 stops27h 31m
United Airlines
Deal found 4/1$1,670
This Booking.com deal was found by Cheapflights users on 4/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
PWM
-
SYD
3 stops35h 20m
Air Canada
Sun 5/249:20 am
SYD
-
PWM
2 stops28h 10m
Air Canada
Deal found 4/2$2,134
This Air Canada deal was found by Cheapflights users on 4/2. 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.
Sun 5/2410:55 am
PWM
-
SYD
3 stops30h 25m
Air Canada
Wed 5/279:20 am
SYD
-
PWM
2 stops28h 10m
Air Canada
Deal found 4/2$2,135
This Japan Airlines deal was found by Cheapflights users on 4/4. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
PWM
-
SYD
2 stops34h 20m
Japan Airlines
Mon 6/88:55 am
SYD
-
PWM
2 stops29h 03m
Japan Airlines
Deal found 4/4$2,194
This Air Canada deal was found by Cheapflights users on 4/3. 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 6/46:00 am
PWM
-
SYD
2 stops35h 20m
Air Canada
Mon 6/89:20 am
SYD
-
PWM
3 stops47h 15m
Air Canada
Deal found 4/3$2,205

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 April 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,570
(United Airlines)

One-way from

$902
(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
Search Deals

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 April 6, 2026.
Use the filters below to find and compare flights from Portland to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 6/6

7:16 pm-6:55 am

2 stops45h 39m

Sydney Kingsford Smith

Tue 8/18

10:20 am-10:01 pm

2 stops25h 41m

$1,570

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 5/17

6:00 am-7:00 am

2 stops35h 00m

Sydney Kingsford Smith

Sun 5/24

10:20 am-7:27 pm

2 stops23h 07m

$1,570
Quickest round-trip

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 5/16

3:23 pm-7:00 am

2 stops25h 37m

Sydney Kingsford Smith

Sat 5/23

10:20 am-11:51 pm

2 stops27h 31m

$1,670

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 5/24

10:55 am-7:20 am

3 stops30h 25m

Sydney Kingsford Smith

Wed 5/27

9:20 am-11:30 pm

2 stops28h 10m

$2,135

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 6/4

6:00 am-6:20 am

2 stops34h 20m

Sydney Kingsford Smith

Mon 6/8

8:55 am-11:58 pm

2 stops29h 03m

$2,194

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 6/6

5:36 pm-6:55 am

1 stop23h 19m

Sydney Kingsford Smith

Tue 8/18

10:00 pm-6:31 pm

2 stops58h 31m

$2,295

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 5/17

6:00 am-7:20 am

3 stops35h 20m

Sydney Kingsford Smith

Sun 5/24

9:20 am-9:11 am

3 stops37h 51m

$2,734

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 5/24

6:00 am-7:10 pm

3 stops47h 10m

Sydney Kingsford Smith

Wed 5/27

9:05 pm-11:58 pm

3 stops40h 53m

$4,071
Cheapest one-way

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 6/6

7:16 pm-6:55 am

2 stops45h 39m

$902
Quickest one-way

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sat 6/6

5:36 pm-6:55 am

1 stop23h 19m

$1,110

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Sorted by cheapest first

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 $251). Flying from Portland, Maine to Australia in July is currently the most expensive (average of $1,110). 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 30h 25m. 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 $251). Flying from Portland, Maine to Australia in July is currently the most expensive (average of $1,110). 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.

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