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$1,156+ Cheap flights from Portland, ME (PWM) to Sydney, NS (YQY)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YQY
Aug 18 — Aug 251
Tue 8/18
Tue 8/25
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 July 19, 2026.

This Air Canada deal was found by Cheapflights users on 7/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:10 am
PWM
-
YQY
2 stops14h 02m
Multiple Airlines
Tue 9/85:05 am
YQY
-
PWM
2 stops10h 26m
Multiple Airlines
Deal found 7/18$1,156
This Air Canada deal was found by Cheapflights users on 7/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:06 am
PWM
-
YQY
2 stops17h 39m
Air Canada
Wed 9/165:05 am
YQY
-
PWM
2 stops19h 27m
Air Canada
Deal found 7/14$1,188
This Air Canada deal was found by Cheapflights users on 7/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 am
PWM
-
YQY
2 stops29h 30m
Air Canada
Wed 11/412:10 pm
YQY
-
PWM
2 stops28h 59m
Air Canada
Deal found 7/18$1,210
This Air Canada deal was found by Cheapflights users on 7/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
PWM
-
YQY
2 stops17h 07m
Air Canada
Tue 8/45:05 am
YQY
-
PWM
2 stops19h 25m
Air Canada
Deal found 7/15$1,686
This Mytrip deal was found by Cheapflights users on 7/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
PWM
-
YQY
3 stops17h 07m
Multiple Airlines
Tue 8/45:10 pm
YQY
-
PWM
3 stops20h 22m
Multiple Airlines
Deal found 7/15$1,789

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 (YQY). 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 July 19, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$1,156
(Air Canada)
Provider with most accurate pricing for Portland-Sydney flight deals.
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Provider most trusted by Cheapflights users for Portland-Sydney flights.
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From Portland to Sydney
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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 July 19, 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
Quickest round-trip

PortlandSydney

PWM - YQY

PWMYQY

Portland

Tue 9/1

9:10 am-12:12 am

2 stops14h 02m

Sydney

Tue 9/8

5:05 am-2:31 pm

2 stops10h 26m

$1,156

PortlandSydney

PWM - YQY

PWMYQY

Portland

Sat 9/12

6:06 am-12:45 am

2 stops17h 39m

Sydney

Wed 9/16

5:05 am-11:32 pm

2 stops19h 27m

$1,188

PortlandSydney

PWM - YQY

PWMYQY

Portland

Sat 10/31

6:00 am-12:30 pm

2 stops29h 30m

Sydney

Wed 11/4

12:10 pm-4:09 pm

2 stops28h 59m

$1,210

PortlandSydney

PWM - YQY

PWMYQY

Portland

Fri 7/31

6:00 am-12:07 am

2 stops17h 07m

Sydney

Tue 8/4

5:05 am-11:30 pm

2 stops19h 25m

$1,686

PortlandSydney

PWM - YQY

PWMYQY

Portland

Fri 7/31

6:00 am-12:07 am

3 stops17h 07m

Sydney

Tue 8/4

5:10 pm-12:32 pm

3 stops20h 22m

$1,789

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Portland, Maine-Sydney, Nova Scotia flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Portland, Maine-Sydney, Nova Scotia flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Portland, Maine-Sydney, Nova Scotia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Sydney, Nova Scotia flights, Cheapflights users trust Expedia the most. Expedia 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, Nova Scotia 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, Nova Scotia?

    There are many flights that can get you from Portland, Maine to Sydney, Nova Scotia in 17h 39m. Fly via Air Canada to get the fastest option. Portland, Maine and Sydney, Nova Scotia are separated by a distance of 531 mi.

  • 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

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