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$1,569+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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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 November 12, 2025.

This United Airlines deal was found by Cheapflights users on 11/10. 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.
Mon 11/179:45 amPWM - SYD
2 stops31h 20mUnited Airlines
Mon 11/2411:50 amSYD - PWM
2 stops23h 09mUnited Airlines
Deal found 11/10$2,216
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:48 pmPWM - SYD
2 stops27h 42mDelta
Mon 11/1710:40 amSYD - PWM
2 stops29h 14mDelta
Deal found 11/10$2,266
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/259:30 amPWM - SYD
2 stops31h 45mUnited Airlines
Thu 1/111:50 amSYD - PWM
2 stops37h 54mUnited Airlines
Deal found 11/10$2,316
This American Airlines deal was found by Cheapflights users on 11/11. 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.
Thu 11/1312:38 pmPWM - SYD
2 stops28h 22mAmerican Airlines
Mon 11/179:45 amSYD - PWM
3 stops30h 14mAmerican Airlines
Deal found 11/11$3,053
This Priceline deal was found by Cheapflights users on 11/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amPWM - SYD
3 stops35h 35mMultiple Airlines
Sat 11/159:45 pmSYD - PWM
2 stops40h 05mMultiple Airlines
Deal found 11/9$5,690
This United Airlines deal was found by Cheapflights users on 11/10. 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 11/139:45 amPWM - SYD
3 stops31h 30mUnited Airlines
Sat 11/1512:10 pmSYD - PWM
2 stops22h 49mUnited Airlines
Deal found 11/10$10,665

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 November 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,569
(American 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
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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 November 12, 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

Mon 2/9

12:46 pm-9:00 am

2 stops28h 14m

Sydney Kingsford Smith

Sat 2/21

2:05 pm-10:59 pm

2 stops24h 54m

$1,569

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/8

5:30 am-8:30 am

2 stops35h 00m

Sydney Kingsford Smith

Sat 2/21

10:40 am-11:04 pm

2 stops28h 24m

$1,615

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 2/10

5:30 am-6:50 am

2 stops33h 20m

Sydney Kingsford Smith

Sat 2/21

10:40 am-11:04 pm

2 stops28h 24m

$1,615

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 12/25

9:30 am-9:15 am

2 stops31h 45m

Sydney Kingsford Smith

Thu 1/1

11:50 am-9:44 am

2 stops37h 54m

$2,316

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 2/8

6:00 am-9:35 am

2 stops35h 35m

Sydney Kingsford Smith

Sat 2/21

11:20 am-11:20 pm

3 stops52h 00m

$2,447

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 2/10

6:00 am-9:35 am

2 stops35h 35m

Sydney Kingsford Smith

Sat 2/21

11:20 am-11:20 pm

3 stops52h 00m

$2,492

PortlandSydney

PWM - SYD

PWMSYD

Portland

Mon 2/9

8:40 am-9:35 am

3 stops32h 55m

Sydney Kingsford Smith

Sat 2/21

11:20 am-11:20 pm

3 stops52h 00m

$2,550

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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 $1,011). 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 14m. 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 $1,011). 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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