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Cheap flights from Philadelphia to Australia from $787

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
23 Jul — 30 Jul1
1 adult

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 18 July 2025.

Round-trip from

$1,704

One-way from

$787

Popular in

December

Cheapest in

September

Average price

$2,642
11/11-2/12
  • 11/11-2/12
  • 4 total stops
  • 65h 54m total
  • Philadelphia to Australia
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25/8
  • 25/8
  • 2 total stops
  • 55h 00m total
  • Philadelphia to Australia
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($678 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($115 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 18 July 2025.

Tue 11/1107:02PHL - SYD
2 stops31h 08mMultiple Airlines
Tue 2/1211:15SYD - PHL
2 stops34h 46mMultiple Airlines
Deal found 16/7$1,704
Tue 11/1110:05PHL - SYD
2 stops42h 10mANA
Tue 18/1121:45SYD - PHL
2 stops42h 30mANA
Deal found 18/7$1,780
Fri 15/817:48PHL - MEL
2 stops28h 12mMultiple Airlines
Sat 23/813:30MEL - PHL
2 stops31h 31mMultiple Airlines
Deal found 16/7$1,897
Sat 25/1018:43PHL - SYD
2 stops27h 02mFiji Airways
Sun 2/1114:00SYD - PHL
2 stops25h 38mFiji Airways
Deal found 16/7$1,991
Sat 30/817:35PHL - BNE
2 stops27h 00mMultiple Airlines
Sat 6/923:50BNE - PHL
2 stops44h 05mMultiple Airlines
Deal found 16/7$1,998
Tue 19/818:45PHL - BNE
2 stops25h 40mFiji Airways
Tue 9/911:35BNE - PHL
2 stops25h 54mFiji Airways
Deal found 16/7$1,999
Wed 24/909:20PHL - SYD
2 stops32h 00mAir Canada
Wed 8/1010:20SYD - PHL
2 stops26h 18mAir Canada
Deal found 18/7$2,033
Wed 3/1212:50PHL - SYD
2 stops33h 35mQantas Airways
Wed 14/107:05SYD - PHL
2 stops26h 39mQantas Airways
Deal found 17/7$2,062
Sun 7/920:25PHL - PER
1 stop34h 15mMultiple Airlines
Mon 22/922:45PER - PHL
1 stop46h 20mMultiple Airlines
Deal found 17/7$2,081
Mon 20/1021:21PHL - ADL
2 stops48h 44mMultiple Airlines
Sat 1/1113:15ADL - PHL
2 stops24h 05mMultiple Airlines
Deal found 16/7$2,251
Sat 16/818:45PHL - MEL
2 stops27h 15mFiji Airways
Thu 28/813:30MEL - PHL
2 stops25h 15mFiji Airways
Deal found 16/7$2,255
Wed 8/1015:10PHL - PER
2 stops39h 30mQatar Airways
Tue 14/1022:45PER - PHL
1 stop46h 15mQatar Airways
Deal found 16/7$2,263

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 18 July 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

Tue 11/11

07:02-06:10

2 stops31h 08m

Sydney Kingsford Smith

Tue 2/12

11:15-06:01

2 stops34h 46m

$1,704

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 11/11

10:05-20:15

2 stops42h 10m

Sydney Kingsford Smith

Tue 18/11

21:45-00:15

2 stops42h 30m

$1,780

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 15/8

17:48-12:00

2 stops28h 12m

Melbourne

Sat 23/8

13:30-07:01

2 stops31h 31m

$1,897

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 25/10

18:43-12:45

2 stops27h 02m

Sydney Kingsford Smith

Sun 2/11

14:00-00:38

2 stops25h 38m

$1,991

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 30/8

17:35-10:35

2 stops27h 00m

Brisbane

Sat 6/9

23:50-05:55

2 stops44h 05m

$1,998

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 19/8

18:45-10:25

2 stops25h 40m

Brisbane

Tue 9/9

11:35-23:29

2 stops25h 54m

$1,999

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 24/9

09:20-07:20

2 stops32h 00m

Sydney Kingsford Smith

Wed 8/10

10:20-21:38

2 stops26h 18m

$2,033

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 3/12

12:50-14:25

2 stops33h 35m

Sydney Kingsford Smith

Wed 14/1

07:05-17:44

2 stops26h 39m

$2,062

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Sun 7/9

20:25-18:40

1 stop34h 15m

Perth

Mon 22/9

22:45-09:05

1 stop46h 20m

$2,081

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Mon 20/10

21:21-12:35

2 stops48h 44m

Adelaide

Sat 1/11

13:15-22:50

2 stops24h 05m

$2,251

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 59 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 return 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, May is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $129). Flying from Philadelphia to Australia in October is currently the most expensive (average of $171). 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 18 July 2025.

When flying from Philadelphia to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 18 July 2025.
Check out reviews from past customers who have flown with ANA, Fiji Airways, andAir New Zealand from Philadelphia to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
ANA
8.4
Very Good
913 reviews
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
Fiji Airways
8.0
Very Good
201 reviews
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
Air New Zealand
8.0
Very Good
496 reviews
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
Cathay Pacific
7.6
Good
936 reviews
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!
Qantas Airways
7.5
Good
879 reviews
ANA
8.4
Very Good
913 reviews
Check prices

Overall

8.4

Entertainment

7.9

Food

7.7

Comfort

8.2

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Kenneth,July 2025

SFO - HND

Great food, great service, great comfort. Can’t ask for more although I’m only flying economy!

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?

    Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to Australia. It is only a 11.2 km journey to Philadelphia (PHL) from Philadelphia’s city centre.

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

    The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $1,029. However, be on the lookout for offers from Qatar Airways and Qantas Airways, as they are both options that can get you from Philadelphia to Australia for a low price.

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

    The most popular route from Philadelphia to Australia is Philadelphia - Melbourne. You may also consider Philadelphia - Sydney Kingsford Smith or Philadelphia - Melbourne Avalon.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $129). Flying from Philadelphia to Australia in October is currently the most expensive (average of $171). 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

Browse thousands of different options on Cheapflights for your next trip

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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.
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Top airline flying from Philadelphia to Australia

Discover the top airline 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 647,157 searches. Data last updated 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,326Average$1,779FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Philadelphia to Australia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Philadelphia to Australia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Australia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Australia from Philadelphia.

Can Cheapflights find flights from Philadelphia to Australia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Philadelphia to Australia flexibly with Cheapflights today.

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