$1,309+ Cheap flights from Portland, ME (PWM) to Australia
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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SYD
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Australia with Cheapflights
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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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Cheapest flights from Portland to AustraliaExplore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 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 9/7. 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.
Thu 10/226:00 am -
2 stops34h 55m
Thu 10/299:20 am -
2 stops29h 01m
Deal found 9/7![United Airlines logo]()
$1,410
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/236:00 am -
2 stops34h 55m
Fri 10/309:15 am -
2 stops29h 06m
Deal found 9/8![United Airlines logo]()
$1,411
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 Etihad Airways 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 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 9/3![Etihad Airways logo]()
$1,754
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 Qantas Airways deal was found by Cheapflights users on 9/8. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:18 pm -
2 stops23h 47m
Fri 9/255:50 pm -
3 stops34h 30m
Deal found 9/8![Multiple Airlines logo]()
$2,120
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:00 pm -
2 stops28h 05m
Mon 10/121:00 pm -
1 stop20h 47m
Deal found 9/5![American Airlines logo]()
$2,211
Best flights from Portland to AustraliaDiscover carefully curated flight deals from Portland to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Portland to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Qantas Airways deal was found by Cheapflights users on 9/7. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/310:57 am -
2 stops30h 03m
Wed 3/3110:10 am -
2 stops27h 49m
Deal found 9/7![Multiple Airlines logo]()
$1,309
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 Ovago deal was found by Cheapflights users on 9/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1010:59 am -
2 stops27h 26m
Mon 2/2211:20 am -
2 stops27h 29m
Deal found 9/6![Qantas Airways logo]()
$1,633
This Etihad Airways 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 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 9/4![Etihad Airways logo]()
$1,754
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/236:00 am -
2 stops34h 55m
Fri 10/309:15 am -
2 stops29h 06m
Deal found 9/8![United Airlines logo]()
$1,411
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 9/7. 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.
Wed 3/35:45 am -
3 stops35h 35m
Wed 3/3111:20 am -
2 stops23h 04m
Deal found 9/7![United Airlines logo]()
$1,615
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 Qantas Airways deal was found by Cheapflights users on 9/8. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:18 pm -
2 stops23h 47m
Fri 9/255:50 pm -
3 stops34h 30m
Deal found 9/8![Multiple Airlines logo]()
$2,120
Last-minute flights from Portland to AustraliaDiscover last-minute flight deals from Portland to Australia. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Australia. Data last updated September 9, 2026 and is based on user searches.
This Qantas Airways deal was found by Cheapflights users on 9/8. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:18 pm -
2 stops23h 47m
Fri 9/255:50 pm -
3 stops34h 30m
Deal found 9/8![Multiple Airlines logo]()
$2,120
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 American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:00 pm -
2 stops28h 05m
Mon 10/121:00 pm -
1 stop20h 47m
Deal found 9/5![American Airlines logo]()
$2,211
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 United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 10/226:00 am -
2 stops34h 55m
Thu 10/299:20 am -
2 stops29h 01m
Deal found 9/7![United Airlines logo]()
$1,410
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/236:00 am -
2 stops34h 55m
Fri 10/309:15 am -
2 stops29h 06m
Deal found 9/8![United Airlines logo]()
$1,411
This Etihad Airways 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 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 9/3![Etihad Airways logo]()
$1,754
One-way flights from Portland to AustraliaSearch for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
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
Find flight deals from Portland to Australia
Keep the following information in mind while searching for Portland to Australia flight deals. Data was last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,309 (Qantas Airways) |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Australia 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 9, 2026.
Use the filters below to find and compare flights from Portland to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Wed 3/3
10:57 am-9:00 am
2 stops30h 03m
Sydney Kingsford Smith
Wed 3/31
10:10 am-10:59 pm
2 stops27h 49m
$1,309
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
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Fri 10/23
6:00 am-7:55 am
2 stops34h 55m
Sydney Kingsford Smith
Fri 10/30
9:15 am-11:21 pm
2 stops29h 06m
$1,411
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
Wed 3/3
5:45 am-9:20 am
3 stops35h 35m
Sydney Kingsford Smith
Wed 3/31
11:20 am-7:24 pm
2 stops23h 04m
$1,615
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Wed 2/10
10:59 am-6:25 am
2 stops27h 26m
Sydney Kingsford Smith
Mon 2/22
11:20 am-10:49 pm
2 stops27h 29m
$1,633
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
$1,754
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Mon 10/19
6:00 am-6:00 pm
3 stops45h 00m
Sydney Kingsford Smith
Mon 10/26
9:05 pm-11:43 pm
3 stops41h 38m
$2,086
PortlandSydney
PWM Portland - SYD Sydney Kingsford Smith
PWMSYD
Portland
Fri 9/18
5:18 pm-7:05 am
2 stops23h 47m
Sydney Kingsford Smith
Fri 9/25
5:50 pm-2:20 pm
3 stops34h 30m
$2,120
Quickest round-trip
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
Sorted by cheapest first
Best time to book a flight from Portland to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia 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.
Cheapflights Insights
Everything you need to know about your flight from Portland to Australia
PWM-AU0
PWM-SYD
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated September 9, 2026.
Get a feel of what it's like to fly with American Airlines from Portland to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.8
Food
6.4
Boarding
7.5
Comfort
7.2
Overall
7.1
Crew
7.9
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Entertainment
6.8
Food
6.4
Boarding
7.5
Comfort
7.2
Overall
7.1
Crew
7.9
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 Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Portland to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Australia by cabin class
Find flights from Portland to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Australia flights
Browse other Portland and Australia flight options. Last updated on September 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top airline flying from Portland to Australia
Discover the top airline that operate flights from Portland to Australia. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,691 | Average$2,325 | FlexibilityNo cancel fee | On-time71% |