$1,133+ Cheap flights from Portland, ME (PWM) to Sydney (SYD)
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 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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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
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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
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Cheapest flights from Portland to SydneyExplore 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 September 17, 2026.
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 September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:50 am -
2 stops29h 10m
Wed 11/49:15 am -
2 stops25h 47m
Deal found 9/13![United Airlines logo]()
$1,315
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:55 pm -
2 stops45h 05m
Wed 11/411:50 am -
2 stops23h 12m
Deal found 9/13![United Airlines logo]()
$1,330
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sun 11/15:50 am -
2 stops35h 30m
Sun 11/811:20 am -
2 stops42h 56m
Deal found 9/17![United Airlines logo]()
$1,364
This Qantas Airways deal was found by Cheapflights users on 9/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:40 pm -
2 stops25h 20m
Fri 11/611:10 am -
2 stops27h 23m
Deal found 9/14![Multiple Airlines logo]()
$1,379
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/293:41 pm -
2 stops25h 24m
Thu 11/59:20 am -
2 stops25h 29m
Deal found 9/14![United Airlines logo]()
$1,415
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am -
2 stops34h 55m
Tue 10/2010:30 am -
2 stops24h 52m
Deal found 9/15![United Airlines logo]()
$1,520
This Qantas Airways deal was found by Cheapflights users on 9/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
3 stops30h 00m
Wed 11/411:05 am -
3 stops27h 52m
Deal found 9/13![Multiple Airlines logo]()
$1,742
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:30 am -
2 stops57h 00m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 9/14![Etihad Airways logo]()
$1,829
Best flights from Portland to SydneyDiscover carefully curated flight deals from Portland to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Portland to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:55 pm -
2 stops45h 05m
Wed 11/411:50 am -
2 stops23h 12m
Deal found 9/13![United Airlines logo]()
$1,330
This Qantas Airways deal was found by Cheapflights users on 9/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:40 pm -
2 stops25h 20m
Fri 11/611:10 am -
2 stops27h 23m
Deal found 9/14![Multiple Airlines logo]()
$1,379
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:30 am -
2 stops57h 00m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 9/14![Etihad Airways logo]()
$1,829
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sun 11/15:50 am -
2 stops35h 30m
Sun 11/811:20 am -
2 stops42h 56m
Deal found 9/17![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/293:41 pm -
2 stops25h 24m
Thu 11/59:20 am -
2 stops25h 29m
Deal found 9/14![United Airlines logo]()
$1,415
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/308:32 am -
3 stops32h 33m
Fri 11/69:15 am -
2 stops25h 34m
Deal found 9/14![United Airlines logo]()
$1,415
This Qantas Airways deal was found by Cheapflights users on 9/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
3 stops30h 00m
Wed 11/49:45 am -
2 stops29h 58m
Deal found 9/13![Multiple Airlines logo]()
$1,931
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am -
2 stops34h 55m
Tue 10/2010:30 am -
2 stops24h 52m
Deal found 9/15![United Airlines logo]()
$1,520
Last-minute flights from Portland to SydneyDiscover last-minute flight deals from Portland to Sydney. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sydney. Data last updated September 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am -
2 stops34h 55m
Tue 10/2010:30 am -
2 stops24h 52m
Deal found 9/15![United Airlines logo]()
$1,520
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:55 pm -
2 stops45h 05m
Wed 11/411:50 am -
2 stops23h 12m
Deal found 9/13![United Airlines logo]()
$1,330
This Qantas Airways deal was found by Cheapflights users on 9/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
3 stops30h 00m
Wed 11/411:05 am -
3 stops27h 52m
Deal found 9/13![Multiple Airlines logo]()
$1,742
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:50 am -
2 stops29h 10m
Wed 11/49:15 am -
2 stops25h 47m
Deal found 9/13![United Airlines logo]()
$1,315
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/293:41 pm -
2 stops25h 24m
Thu 11/59:20 am -
2 stops25h 29m
Deal found 9/14![United Airlines logo]()
$1,415
This Qantas Airways deal was found by Cheapflights users on 9/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:40 pm -
2 stops25h 20m
Fri 11/611:10 am -
2 stops27h 23m
Deal found 9/14![Multiple Airlines logo]()
$1,379
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:30 am -
2 stops57h 00m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 9/14![Etihad Airways logo]()
$1,829
One-way flights from Portland to SydneySearch for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2612:42 pm -
2 stops25h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$1,133
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/269:48 am -
3 stops58h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$1,731
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,315 (United Airlines) |
One-way from | $1,133 (American Airlines) |
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 7,457,451 searches. Data last updated September 17, 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
Cheapest round-trip
Quickest round-trip
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 12/26
12:42 pm-6:25 am
2 stops25h 43m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,133
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 10/24
6:55 pm-7:00 am
2 stops45h 05m
Sydney Kingsford Smith
Wed 11/4
11:50 am-7:02 pm
2 stops23h 12m
$1,330
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sun 11/1
5:50 am-9:20 am
2 stops35h 30m
Sydney Kingsford Smith
Sun 11/8
11:20 am-2:16 pm
2 stops42h 56m
$1,364
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Fri 10/30
4:40 pm-9:00 am
2 stops25h 20m
Sydney Kingsford Smith
Fri 11/6
11:10 am-10:33 pm
2 stops27h 23m
$1,379
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Thu 10/29
3:41 pm-8:05 am
2 stops25h 24m
Sydney Kingsford Smith
Thu 11/5
9:20 am-6:49 pm
2 stops25h 29m
$1,415
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Fri 10/30
8:32 am-8:05 am
3 stops32h 33m
Sydney Kingsford Smith
Fri 11/6
9:15 am-6:49 pm
2 stops25h 34m
$1,415
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Tue 10/13
6:00 am-7:55 am
2 stops34h 55m
Sydney Kingsford Smith
Tue 10/20
10:30 am-8:22 pm
2 stops24h 52m
$1,520
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 12/26
9:48 am-12:35 pm
3 stops58h 47m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,731
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 10/31
6:30 am-6:30 am
2 stops57h 00m
Sydney Kingsford Smith
Wed 11/4
4:50 pm-11:43 pm
2 stops46h 53m
$1,829
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 10/24
11:55 am-8:55 am
3 stops30h 00m
Sydney Kingsford Smith
Wed 11/4
9:45 am-11:43 pm
2 stops29h 58m
$1,931
Sorted by cheapest first
- 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.
PWM-SYD
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 September 17, 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.
Boarding
7.4
Food
6.4
Entertainment
6.8
Overall
7.1
Crew
7.9
Comfort
7.2
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Boarding
7.4
Food
6.4
Entertainment
6.8
Overall
7.1
Crew
7.9
Comfort
7.2
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
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.
Traveling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsParramatta
Wollongong
Coogee
Manly
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Complete your trip
Complete your trip to Sydney by adding a car rental and/or hotel reservation to your travel itinerary.
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Portland and Sydney flights
Browse other Portland and Sydney flight options. Last updated on September 17, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Sydney
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,691 | Average$2,325 | FlexibilityNo cancel fee | On-time71% |