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$833+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
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 June 10, 2026.

This Delta deal was found by Cheapflights users on 6/5. 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.
Tue 6/231:55 pm
PWM
-
SYD
2 stops26h 55m
Delta
Tue 7/79:15 am
SYD
-
PWM
2 stops29h 44m
Delta
Deal found 6/5$1,165
This Delta deal was found by Cheapflights users on 6/5. 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.
Wed 7/226:00 am
PWM
-
SYD
2 stops34h 50m
Delta
Fri 8/79:15 am
SYD
-
PWM
2 stops29h 44m
Delta
Deal found 6/5$1,460
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/236:00 am
PWM
-
SYD
2 stops34h 55m
United Airlines
Thu 7/309:30 am
SYD
-
PWM
2 stops38h 37m
United Airlines
Deal found 6/8$1,482
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Wed 7/225:33 pm
PWM
-
SYD
1 stop23h 22m
American Airlines
Fri 8/79:10 am
SYD
-
PWM
2 stops26h 11m
American Airlines
Deal found 6/5$1,618
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 7/216:00 am
PWM
-
SYD
2 stops34h 55m
United Airlines
Tue 7/2810:20 am
SYD
-
PWM
2 stops25h 21m
United Airlines
Deal found 6/6$1,663
This Etihad Airways deal was found by Cheapflights users on 6/6. 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.
Thu 8/136:00 am
PWM
-
SYD
2 stops58h 10m
Etihad Airways
Mon 8/178:50 pm
SYD
-
PWM
2 stops54h 55m
Etihad Airways
Deal found 6/6$1,850
This Ovago deal was found by Cheapflights users on 6/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:15 am
PWM
-
SYD
2 stops38h 10m
ANA
Sat 7/1111:45 am
SYD
-
PWM
2 stops50h 06m
ANA
Deal found 6/7$1,918
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sun 7/58:00 am
PWM
-
SYD
1 stop33h 00m
United Airlines
Sat 7/1110:20 am
SYD
-
PWM
1 stop20h 37m
United Airlines
Deal found 6/7$2,360
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:03 am
PWM
-
SYD
2 stops34h 52m
United Airlines
Mon 8/1710:20 am
SYD
-
PWM
2 stops23h 04m
United Airlines
Deal found 6/9$2,364

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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,165
(Delta)

One-way from

$833
(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
One-way flight from Portland to Sydney Kingsford Smith
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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 June 10, 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

Tue 6/23

1:55 pm-6:50 am

2 stops26h 55m

Sydney Kingsford Smith

Tue 7/7

9:15 am-12:59 am

2 stops29h 44m

$1,165

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 7/22

6:00 am-6:50 am

2 stops34h 50m

Sydney Kingsford Smith

Fri 8/7

9:15 am-12:59 am

2 stops29h 44m

$1,460

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 7/23

6:00 am-6:55 am

2 stops34h 55m

Sydney Kingsford Smith

Thu 7/30

9:30 am-10:07 am

2 stops38h 37m

$1,482
Quickest round-trip

PortlandSydney

PWM - SYD

PWMSYD

Portland

Wed 7/22

5:33 pm-6:55 am

1 stop23h 22m

Sydney Kingsford Smith

Fri 8/7

9:10 am-9:21 pm

2 stops26h 11m

$1,618

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 7/21

6:00 am-6:55 am

2 stops34h 55m

Sydney Kingsford Smith

Tue 7/28

10:20 am-9:41 pm

2 stops25h 21m

$1,663

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 7/5

5:15 am-9:25 am

2 stops38h 10m

Sydney Kingsford Smith

Sat 7/11

11:45 am-11:51 pm

2 stops50h 06m

$1,918

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 8/13

6:00 am-6:10 am

2 stops58h 10m

Sydney Kingsford Smith

Mon 8/17

8:50 pm-1:45 pm

2 stops54h 55m

$1,950

PortlandSydney

PWM - SYD

PWMSYD

Portland

Sun 7/5

8:00 am-7:00 am

1 stop33h 00m

Sydney Kingsford Smith

Sat 7/11

10:20 am-4:57 pm

1 stop20h 37m

$2,360

PortlandSydney

PWM - SYD

PWMSYD

Portland

Thu 8/13

6:03 am-6:55 am

2 stops34h 52m

Sydney Kingsford Smith

Mon 8/17

10:20 am-7:24 pm

2 stops23h 04m

$2,364

PortlandSydney

PWM - SYD

PWMSYD

Portland

Tue 6/23

1:25 pm-8:20 am

1 stop28h 55m

Sydney Kingsford Smith

Tue 7/7

9:10 am-6:52 pm

2 stops23h 42m

$2,524

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 June.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 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.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated June 10, 2026.
Read through reviews of airlines operating flights from Portland to Sydney, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,636 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2026

DFW - BDL

They keep changing the gate, delaying the hours and then finally canceled it. No accomodation, no food, nothing!
American Airlines
7.1
Good
11,636 reviews
American Airlines
7.1
Good
11,636 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Apr 2026

DFW - BDL

They keep changing the gate, delaying the hours and then finally canceled it. No accomodation, no food, nothing!

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 23h 22m. Fly via Delta, United Airlines, or American 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.

  • What is the cheapest airline to fly from Portland, Maine to Sydney round-trip?

    According to our current data, American Airlines ($1,691), offers the cheapest pricing from Portland, Maine to Sydney.

  • 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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Alternative routes for Portland to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Sydney flights

Top airline flying from Portland to Sydney

Discover the top airline that operate flights from Portland to Sydney. 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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,691Average$2,325FlexibilityNo cancel feeOn-time71%

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