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

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Portland to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$1,439
(American Airlines)
From Portland to Sydney Kingsford Smith
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Find flight deals from Portland to Sydney

Cheapest flights from Portland to Sydney
Explore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 10/263:28 pmPWM - SYD
2 stops26h 32mAmerican Airlines
Sun 11/211:20 amSYD - PWM
2 stops27h 13mAmerican Airlines
Deal found 9/11$1,439
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/133:00 pmPWM - SYD
2 stops26h 05mUnited Airlines
Mon 11/1711:20 amSYD - PWM
2 stops26h 30mUnited Airlines
Deal found 9/10$1,654
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/264:53 pmPWM - SYD
2 stops25h 12mUnited Airlines
Sun 11/212:10 pmSYD - PWM
2 stops22h 49mUnited Airlines
Deal found 9/11$1,697
This Air Canada deal was found by Cheapflights users on 9/9. 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
2 stops35h 35mAir Canada
Mon 11/1711:20 amSYD - PWM
3 stops27h 57mAir Canada
Deal found 9/9$2,303
This Qatar Airways deal was found by Cheapflights users on 9/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:01 amPWM - SYD
2 stops44h 49mQatar Airways
Sun 11/212:10 pmSYD - PWM
3 stops39h 58mQatar Airways
Deal found 9/11$2,391
This Booking.com deal was found by Cheapflights users on 9/11. 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 10/266:00 amPWM - SYD
3 stops35h 35mAir Canada
Sun 11/211:20 amSYD - PWM
3 stops27h 57mAir Canada
Deal found 9/11$2,463

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Sydney 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 11, 2025.
Use the filters below to find and compare flights from Portland to Sydney that are best for you.

Fly from

Portland

Fly to

Sydney

Route

Depart

Return

Price

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 10/26

3:28 pm-9:00 am

2 stops26h 32m

Sydney Kingsford Smith

Sun 11/2

11:20 am-11:33 pm

2 stops27h 13m

$1,439

PortlandSydney

PWM - SYD

PWMSYD

Portland

Mon 2/9

3:12 pm-9:05 am

2 stops25h 53m

Sydney Kingsford Smith

Sat 3/28

11:50 am-11:17 pm

2 stops26h 27m

$1,456

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 2/10

2:31 pm-9:05 am

2 stops26h 34m

Sydney Kingsford Smith

Sat 3/28

11:50 am-11:17 pm

2 stops26h 27m

$1,456

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 11/13

3:20 pm-9:05 am

2 stops25h 45m

Sydney Kingsford Smith

Mon 11/17

11:20 am-11:17 pm

2 stops27h 57m

$1,654

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 10/26

4:53 pm-9:05 am

2 stops25h 12m

Sydney Kingsford Smith

Sun 11/2

12:10 pm-7:59 pm

2 stops22h 49m

$1,697

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 11/13

6:00 am-9:35 am

2 stops35h 35m

Sydney Kingsford Smith

Mon 11/17

11:20 am-11:17 pm

3 stops27h 57m

$2,303

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 10/26

7:01 am-6:50 pm

2 stops44h 49m

Sydney Kingsford Smith

Sun 11/2

12:10 pm-1:08 pm

3 stops39h 58m

$2,391

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 10/26

6:00 am-8:35 am

3 stops35h 35m

Sydney Kingsford Smith

Sun 11/2

11:20 am-12:17 am

3 stops27h 57m

$2,463

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Portland to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Sydney (average of $1,035). Flying from Portland, Maine to Sydney in December is currently the most expensive (average of $1,626). 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 Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Portland, Maine to Sydney in 25h 53m. Fly via American Airlines or United Airlines to get the fastest option. The distance between Portland, Maine and Sydney is about 10124 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Sydney 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 Sydney?

    Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Sydney (average of $1,035). Flying from Portland, Maine to Sydney in December is currently the most expensive (average of $1,626). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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