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$1,204+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$1,204
(United Airlines)
From Portland to Australia
Search Deals

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 julio 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 9/1210:39 amPWM - SYD
2 stops30h 21mUnited Airlines
vie. 9/199:30 amSYD - PWM
2 stops44h 20mUnited Airlines
Deal found 7/29$1,204
This American Airlines deal was found by Cheapflights users on 7/30. 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.
dom. 8/36:35 pmPWM - SYD
1 stop22h 20mAmerican Airlines
mar. 8/59:30 pmSYD - PWM
2 stops27h 11mAmerican Airlines
Deal found 7/30$2,221
This Air Canada deal was found by Cheapflights users on 7/28. 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.
jue. 11/136:00 amPWM - SYD
3 stops35h 35mAir Canada
lun. 11/1711:20 amSYD - PWM
3 stops27h 57mAir Canada
Deal found 7/28$2,807
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/31:10 pmPWM - SYD
3 stops28h 10mMultiple Airlines
mar. 8/58:45 pmSYD - PWM
2 stops39h 43mMultiple Airlines
Deal found 7/30$4,108

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 julio 30, 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

vie. 9/12

10:39 am-7:00 am

2 stops30h 21m

Sydney Kingsford Smith

vie. 9/19

9:30 am-3:50 pm

2 stops44h 20m

$1,204

PortlandSydney

PWM - SYD

PWMSYD

Portland

jue. 11/13

6:00 am-9:35 am

3 stops35h 35m

Sydney Kingsford Smith

lun. 11/17

11:20 am-11:17 pm

3 stops27h 57m

$2,807

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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, February is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $1,028). Flying from Portland, Maine to Australia in December is currently the most expensive (average of $1,619). 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.

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated julio 30, 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from Portland to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,837 reviews
United Airlines
7.4
Good
8,896 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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, February is the cheapest month in which you can book a flight from Portland, Maine to Australia (average of $1,028). Flying from Portland, Maine to Australia in December is currently the most expensive (average of $1,619). 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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Top airline flying from Portland to Australia

Discover the top airline that operate flights from Portland to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,243Average$1,550FlexibilityNo cancel feeOn-time69%

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