$1,310+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Oct 5 — Oct 121
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
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
Best
Last-minute
One-way
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 5, 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 5, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
2 stops35h 00m
Mon 10/269:20 am -
2 stops29h 01m
Deal found 9/4![United Airlines logo]()
$1,310
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/187:50 am -
2 stops33h 10m
Sun 10/2510:30 am -
2 stops26h 21m
Deal found 9/3![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/176:00 am -
3 stops35h 00m
Sat 10/2410:30 am -
2 stops24h 52m
Deal found 9/2![United Airlines logo]()
$1,415
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:15 am -
2 stops35h 40m
Mon 10/1210:30 am -
2 stops27h 58m
Deal found 9/5![United Airlines logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/1611:35 am -
2 stops29h 20m
Fri 10/2311:20 am -
2 stops27h 08m
Deal found 9/1![United Airlines logo]()
$1,590
This Etihad Airways deal was found by Cheapflights users on 8/31. 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 stops44h 15m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 8/31![Etihad Airways logo]()
$1,695
This Cathay Pacific deal was found by Cheapflights users on 9/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am -
3 stops45h 00m
Mon 10/269:05 pm -
3 stops41h 38m
Deal found 9/3![Multiple Airlines logo]()
$2,086
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 5, 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 5, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
3 stops34h 55m
Mon 10/2611:50 am -
2 stops27h 09m
Deal found 9/4![United Airlines logo]()
$1,314
This Etihad Airways deal was found by Cheapflights users on 8/31. 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 stops44h 15m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 8/31![Etihad Airways logo]()
$1,695
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/187:50 am -
2 stops33h 10m
Sun 10/2510:30 am -
2 stops26h 21m
Deal found 9/3![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/177:58 am -
2 stops33h 02m
Sat 10/2410:30 am -
2 stops27h 58m
Deal found 9/2![United Airlines logo]()
$1,415
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:15 am -
2 stops35h 40m
Mon 10/1210:30 am -
2 stops27h 58m
Deal found 9/5![United Airlines logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/1611:35 am -
2 stops29h 20m
Fri 10/2311:20 am -
2 stops27h 08m
Deal found 9/1![United Airlines logo]()
$1,590
Last-minute flights from Portland to SydneyDiscover last-minute flight deals from Portland to Sydney. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sydney. Data last updated September 5, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:15 am -
2 stops35h 40m
Mon 10/1210:30 am -
2 stops27h 58m
Deal found 9/5![United Airlines logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/1611:35 am -
2 stops29h 20m
Fri 10/2311:20 am -
2 stops27h 08m
Deal found 9/1![United Airlines logo]()
$1,590
This United Airlines deal was found by Cheapflights users on 9/2. 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 10/176:00 am -
3 stops35h 00m
Sat 10/2410:30 am -
2 stops24h 52m
Deal found 9/2![United Airlines logo]()
$1,415
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/187:50 am -
1 stop33h 05m
Sun 10/2510:30 am -
2 stops27h 51m
Deal found 9/3![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/196:00 am -
2 stops35h 00m
Mon 10/269:20 am -
2 stops29h 01m
Deal found 9/4![United Airlines logo]()
$1,310
This Cathay Pacific deal was found by Cheapflights users on 9/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am -
3 stops45h 00m
Mon 10/269:05 pm -
3 stops41h 38m
Deal found 9/3![Multiple Airlines logo]()
$2,086
This Etihad Airways deal was found by Cheapflights users on 8/31. 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 stops44h 15m
Wed 11/44:50 pm -
2 stops46h 53m
Deal found 8/31![Etihad Airways logo]()
$1,695
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 5, 2026.
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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 12/268:02 am -
2 stops30h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$1,329
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 stops56h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$1,672
This Japan Airlines deal was found by Cheapflights users on 9/3. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:50 pm -
2 stops50h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$12,121
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am -
2 stops58h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Japan Airlines logo]()
$13,462
This FlightHub deal was found by Cheapflights users on 9/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 am -
2 stops46h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$14,534
This AranGrant deal was found by Cheapflights users on 9/3. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:00 am -
1 stop31h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Qantas Airways logo]()
$17,605
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:00 am -
3 stops58h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$18,936
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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,310 (United 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 5, 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
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Mon 10/19
6:00 am-7:55 am
3 stops34h 55m
Sydney Kingsford Smith
Mon 10/26
11:50 am-11:59 pm
2 stops27h 09m
$1,314
Quickest round-trip
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 12/26
8:02 am-6:20 am
2 stops30h 18m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,329
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sun 10/18
7:50 am-8:00 am
2 stops33h 10m
Sydney Kingsford Smith
Sun 10/25
10:30 am-9:51 pm
2 stops26h 21m
$1,364
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 10/17
7:58 am-8:00 am
2 stops33h 02m
Sydney Kingsford Smith
Sat 10/24
10:30 am-11:28 pm
2 stops27h 58m
$1,415
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Mon 10/5
5:15 am-7:55 am
2 stops35h 40m
Sydney Kingsford Smith
Mon 10/12
10:30 am-11:28 pm
2 stops27h 58m
$1,495
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Fri 10/16
11:35 am-7:55 am
2 stops29h 20m
Sydney Kingsford Smith
Fri 10/23
11:20 am-11:28 pm
2 stops27h 08m
$1,590
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 12/26
9:48 am-10:05 am
3 stops56h 17m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$1,672
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sat 10/31
6:30 am-5:45 pm
2 stops44h 15m
Sydney Kingsford Smith
Wed 11/4
4:50 pm-11:43 pm
2 stops46h 53m
$1,695
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Sun 11/8
12:50 pm-6:50 am
2 stops50h 00m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$12,121
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Mon 11/9
6:30 am-8:50 pm
2 stops46h 20m
Sydney Kingsford Smith
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$14,534
Showing 1-10 of 11 resultsSorted 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 5, 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.
Comfort
7.2
Boarding
7.5
Crew
7.9
Overall
7.1
Food
6.4
Entertainment
6.8
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Comfort
7.2
Boarding
7.5
Crew
7.9
Overall
7.1
Food
6.4
Entertainment
6.8
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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Portland and Sydney flights
Browse other Portland and Sydney flight options. Last updated on September 5, 2026.
Other flights from Portland
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Check out other popular destinations found by fellow travelers in 2026
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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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,691 | Average$2,325 | FlexibilityNo cancel fee | On-time71% |