HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$1,167+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YQY
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 18, 2026.

This Air Canada deal was found by Cheapflights users on 2/15. 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 4/33:22 pm
PWM
-
YQY
2 stops19h 24m
Air Canada
Tue 4/712:30 pm
YQY
-
PWM
2 stops25h 55m
Air Canada
Deal found 2/15$1,167
This Air Canada deal was found by Cheapflights users on 2/15. 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.
Tue 6/169:10 am
PWM
-
YQY
2 stops13h 59m
Air Canada
Tue 6/235:05 am
YQY
-
PWM
2 stops14h 30m
Air Canada
Deal found 2/15$1,173
This Air Canada deal was found by Cheapflights users on 2/15. 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.
Sun 3/156:00 am
PWM
-
YQY
2 stops16h 23m
Multiple Airlines
Sun 3/225:20 am
YQY
-
PWM
2 stops18h 40m
Multiple Airlines
Deal found 2/15$1,403

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 February 18, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$1,167
(Air Canada)

Popular in

October

Cheapest in

May
Provider with most accurate pricing for Portland-Sydney flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Sydney flights.
Search Deals
From Portland to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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 February 18, 2026.
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 - YQY

PWMYQY

Portland

Fri 4/3

6:00 am-11:46 am

2 stops28h 46m

Sydney

Tue 4/7

12:30 pm-1:25 pm

2 stops25h 55m

$1,167

PortlandSydney

PWM - YQY

PWMYQY

Portland

Tue 6/16

9:10 am-12:09 am

2 stops13h 59m

Sydney

Tue 6/23

5:05 am-6:35 pm

2 stops14h 30m

$1,173

PortlandSydney

PWM - YQY

PWMYQY

Portland

Sun 3/15

6:00 am-11:23 pm

2 stops16h 23m

Sydney

Sun 3/22

5:20 am-11:00 pm

2 stops18h 40m

$1,403

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

  • 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 28h 46m. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights