Australia

$530+ Cheap flights from Philadelphia (PHL) to Australia

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
ago. 25 — sep. 11
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Cheap flight deals from Philadelphia to Australia

Keep the following information in mind while searching for Philadelphia to Australia flight deals. Data was last updated agosto 20, 2025.

Round-trip from

$852
(Delta)

One-way from

$530
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,456
From Philadelphia to Australia
One-way flight from Philadelphia to Australia
Highest demand for flights based on searches. 16% potential increase in price ($291 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Philadelphia to Australia

Cheapest flights from Philadelphia to Australia
Explore the most affordable flight options available from Philadelphia to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This Delta deal was found by Cheapflights users on 8/19. 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.
mié. 9/2412:47 pmPHL - SYD
2 stops27h 48mDelta
mié. 10/810:25 amSYD - PHL
2 stops24h 22mDelta
Deal found 8/19$852
This Delta deal was found by Cheapflights users on 8/19. 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.
mié. 9/246:45 amPHL - SYD
2 stops33h 50mDelta
sáb. 10/1110:25 amSYD - PHL
2 stops22h 40mDelta
Deal found 8/19$902
This Delta deal was found by Cheapflights users on 8/19. 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.
vie. 8/299:00 amPHL - SYD
2 stops31h 35mDelta
vie. 9/59:25 amSYD - PHL
2 stops26h 55mDelta
Deal found 8/19$952
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/45:15 amPHL - SYD
2 stops35h 50mMultiple Airlines
jue. 9/1812:10 pmSYD - PHL
2 stops26h 47mMultiple Airlines
Deal found 8/19$1,019
This FlightHub deal was found by Cheapflights users on 8/18. 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.
sáb. 10/256:43 pmPHL - SYD
2 stops27h 02mFiji Airways
mar. 11/112:10 pmSYD - PHL
2 stops23h 30mFiji Airways
Deal found 8/18$1,138
This Air Canada deal was found by Cheapflights users on 8/18. 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.
mar. 11/113:30 pmPHL - SYD
2 stops26h 05mAir Canada
mar. 11/1811:20 amSYD - PHL
2 stops43h 27mAir Canada
Deal found 8/18$1,171
This Air Canada deal was found by Cheapflights users on 8/18. 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.
mar. 12/23:30 pmPHL - BNE
2 stops26h 15mAir Canada
mié. 1/2110:45 amBNE - PHL
2 stops43h 02mAir Canada
Deal found 8/18$1,177
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/256:43 pmPHL - SYD
2 stops27h 02mFiji Airways
sáb. 11/152:30 pmSYD - PHL
2 stops23h 10mFiji Airways
Deal found 8/18$1,177
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/245:20 amPHL - SYD
2 stops34h 35mMultiple Airlines
lun. 11/102:20 pmSYD - PHL
2 stops26h 39mMultiple Airlines
Deal found 8/18$1,192
This FlightHub deal was found by Cheapflights users on 8/18. 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.
lun. 10/207:00 pmPHL - SYD
2 stops26h 45mFiji Airways
mar. 10/282:15 pmSYD - PHL
2 stops23h 35mFiji Airways
Deal found 8/18$1,217
This oojo deal was found by Cheapflights users on 8/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/256:43 pmPHL - SYD
2 stops27h 02mFiji Airways
dom. 11/22:00 pmSYD - PHL
2 stops25h 46mFiji Airways
Deal found 8/20$1,218
This Air Canada deal was found by Cheapflights users on 8/18. 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.
dom. 8/319:20 amPHL - BNE
2 stops31h 45mAir Canada
dom. 9/710:00 amBNE - PHL
2 stops50h 08mAir Canada
Deal found 8/18$1,244

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 2,558,603 searches. Data last updated agosto 20, 2025.
Use the filters below to find and compare flights from Philadelphia to Australia that are best for you.

Fly from

Philadelphia

Fly to

Australia

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

mar. 11/11

11:45 am-8:30 am

2 stops28h 45m

Sydney Kingsford Smith

mar. 11/18

10:40 am-11:03 pm

2 stops28h 23m

$852

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

mié. 9/24

12:47 pm-6:35 am

2 stops27h 48m

Sydney Kingsford Smith

mié. 10/8

10:25 am-7:47 pm

2 stops24h 22m

$852

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

mié. 9/24

6:45 am-6:35 am

2 stops33h 50m

Sydney Kingsford Smith

sáb. 10/11

10:25 am-6:05 pm

2 stops22h 40m

$902

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

vie. 8/29

9:00 am-6:35 am

2 stops31h 35m

Sydney Kingsford Smith

vie. 9/5

9:25 am-10:20 pm

2 stops26h 55m

$952

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

vie. 10/3

6:00 am-6:35 am

2 stops34h 35m

Sydney Kingsford Smith

vie. 10/10

10:25 am-7:14 pm

2 stops23h 49m

$952

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

jue. 9/18

12:47 pm-6:35 am

2 stops27h 48m

Sydney Kingsford Smith

jue. 9/25

9:25 am-11:19 pm

2 stops27h 54m

$952

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

jue. 9/4

5:15 am-7:05 am

2 stops35h 50m

Sydney Kingsford Smith

jue. 9/18

12:10 pm-12:57 am

2 stops26h 47m

$1,019

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

sáb. 10/25

6:43 pm-12:45 pm

2 stops27h 02m

Sydney Kingsford Smith

mar. 11/11

2:10 pm-9:40 pm

2 stops23h 30m

$1,138

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

mié. 2/11

5:00 pm-10:20 am

2 stops26h 20m

Brisbane

sáb. 2/28

11:25 am-9:09 pm

2 stops24h 44m

$1,154

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

mar. 11/11

3:30 pm-9:35 am

2 stops26h 05m

Sydney Kingsford Smith

mar. 11/18

11:20 am-2:47 pm

2 stops43h 27m

$1,171

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 60 results
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Best time to book a flight from Philadelphia to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Philadelphia 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.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Australia

What is the cheapest month to book a flight from Philadelphia to Australia?

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $1,030). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,620). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to AU?

Find hourly flight availability from Philadelphia to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Australia as you normally would.

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 agosto 20, 2025.
See what other customers who have flown with Fiji Airways, Qantas Airways, and United Airlines from Philadelphia to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Overall

8.0

Food

7.5

Boarding

8.1

Crew

8.5

Entertainment

7.4

Comfort

8.0

Reviews

1 / 16
6.0
Good

Christopher,Jun 2025

LAX - NAN

No attempt to make you comfortable. All they care about is how can they pack more people on the plane and how can they charge you for as much as possible. I find it invasive and discriminatory that you weigh my carryon (or any of my naggage frankly). If I physically weighed 15kilos more and my bag weighed under your stupid and arbitrary weight limit I would not be charged... but if I'm a person who is skinny and weighs less, well heaven forbid my bag is 1 kilo heavier than you wish!! $$$ VERY VERY DISCRIMINATORY POLICY!! NEXT TIME I'LL TRY TO EAT MY BAGGAGE SO THAT I CAN TAKE ON AS MUCH WEIGHT AS I WANT! Yeah... sounds ridiculous doesn't it!? No more ridiculous than you charging more for people who bring more baggage weight while letting obese people carry on all the weight they want! It just proves it has absolutely nothing to do with safety, or even your operating costs... Just squeezing as much money out of us as possible!!

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Philadelphia to Australia?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Australia. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • How long is the flight from Philadelphia to Australia?

    Delta, Fiji Airways, and Air Canada can get you from Philadelphia to Australia in just under 26h 15m. Your travel time can differ by up to 2h 30m. The distance between Philadelphia and Australia is about 9555 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Philadelphia to Australia one-way?

    For one-way options, check prices for Fiji Airways. According to our data, you can fly for as low as $604. Users have also found prices from $899 and $981 on Cathay Pacific and Qatar Airways, respectively.

  • What are the most popular routes from Philadelphia to Australia?

  • Can I find deals for flights from Philadelphia to Australia that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Australia.

  • Can I find deals for business class flights from Philadelphia to Australia?

    Yes. Cheapflights offers flight deals from Philadelphia to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Australia?

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $1,030). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,620). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Philadelphia to Australia

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Philadelphia to Australia

Discover the top 8 airlines that operate flights from Philadelphia 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 2,558,603 searches. Data last updated agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$717Average$1,042FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$860Average$1,479FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$945Average$1,487FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$945Average$1,325FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,147Average$1,749FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,220Average$1,548FlexibilityNo cancel feeOn-time78%
Qantas AirwaysCheapest$1,294Average$2,025FlexibilityNo cancel feeOn-time74%
Qatar AirwaysCheapest$1,296Average$1,574FlexibilityNo cancel feeOn-time68%

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