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$870+ Cheap flights from Portland, ME (PWM) to Sydney (SYD)

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap 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 April 18, 2026.

This Delta deal was found by Cheapflights users on 4/14. 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.
Fri 5/296:00 am
PWM
-
SYD
2 stops34h 50m
Delta
Fri 6/59:15 am
SYD
-
PWM
2 stops27h 54m
Delta
Deal found 4/14$1,451
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/285:15 am
PWM
-
SYD
2 stops35h 40m
United Airlines
Thu 6/49:30 am
SYD
-
PWM
2 stops23h 57m
United Airlines
Deal found 4/17$1,452
This United Airlines deal was found by Cheapflights users on 4/18. 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 5/286:00 am
PWM
-
SYD
3 stops35h 00m
United Airlines
Fri 6/510:20 am
SYD
-
PWM
2 stops27h 31m
United Airlines
Deal found 4/18$1,453
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 5/273:16 pm
PWM
-
SYD
2 stops25h 39m
United Airlines
Fri 6/59:30 am
SYD
-
PWM
2 stops26h 21m
United Airlines
Deal found 4/17$1,485
This Turkish Airlines deal was found by Cheapflights users on 4/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:20 am
PWM
-
SYD
3 stops45h 50m
Turkish Airlines
Sun 5/109:05 pm
SYD
-
PWM
3 stops63h 58m
Turkish Airlines
Deal found 4/15$1,630
This Etihad Airways deal was found by Cheapflights users on 4/13. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:20 am
PWM
-
SYD
2 stops43h 30m
Etihad Airways
Sun 5/103:40 pm
SYD
-
PWM
2 stops45h 23m
Etihad Airways
Deal found 4/13$1,662
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Fri 5/296:00 am
PWM
-
SYD
3 stops34h 55m
United Airlines
Fri 6/59:30 am
SYD
-
PWM
2 stops23h 57m
United Airlines
Deal found 4/14$1,673
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/295:36 pm
PWM
-
SYD
1 stop23h 19m
American Airlines
Fri 6/59:10 am
SYD
-
PWM
2 stops26h 36m
American Airlines
Deal found 4/14$1,689

Find 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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,451
(Delta)
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 Sydney Kingsford Smith
Search Deals

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 April 18, 2026.
Use the filters below to find and compare flights from Portland to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSydney

PWM - SYD

PWMSYD

Portland

Fri 5/29

6:00 am-6:50 am

2 stops34h 50m

Sydney Kingsford Smith

Fri 6/5

9:15 am-11:09 pm

2 stops27h 54m

$1,451
Quickest round-trip

PortlandSydney

PWM - SYD

PWMSYD

Portland

Fri 5/15

3:23 pm-7:00 am

2 stops25h 37m

Sydney Kingsford Smith

Fri 5/22

9:30 am-11:51 pm

2 stops28h 21m

$1,452

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 5/28

6:00 am-7:00 am

3 stops35h 00m

Sydney Kingsford Smith

Fri 6/5

10:20 am-11:51 pm

2 stops27h 31m

$1,453

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 5/27

6:00 am-7:00 am

3 stops35h 00m

Sydney Kingsford Smith

Fri 6/5

9:30 am-11:30 pm

2 stops28h 00m

$1,485

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 5/6

7:20 am-7:10 pm

3 stops45h 50m

Sydney Kingsford Smith

Sun 5/10

9:05 pm-11:03 pm

3 stops63h 58m

$1,630

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 5/6

7:20 am-4:50 pm

2 stops43h 30m

Sydney Kingsford Smith

Sun 5/10

3:40 pm-11:03 pm

2 stops45h 23m

$1,662
Cheapest one-way

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 5/28

6:00 am-6:55 am

3 stops34h 55m

$870
Quickest one-way

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 5/28

5:36 pm-6:55 am

1 stop23h 19m

$2,221

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Sorted by cheapest first

Compare providers for flights from Portland to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Sydney in April.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 37m. Fly via Delta 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.

See more FAQs

Traveling to a place near Sydney?

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

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