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Cheap flights from Philadelphia to Australia from $886

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
15 Jul — 22 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 10 July 2025.

Round-trip from

$1,372

One-way from

$886

Popular in

December

Cheapest in

September

Average price

$2,569
United Airlines
  • United Airlines
  • 20/8-26/8
  • 5 total stops
  • 63h 20m total
  • Philadelphia to Australia
Search Deals
16/9
  • 16/9
  • 3 total stops
  • 46h 33m total
  • Philadelphia to Australia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($590 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($116 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 10 July 2025.

Wed 20/806:30PHL - SYD
3 stops34h 30mUnited Airlines
Tue 26/809:30SYD - PHL
2 stops28h 50mUnited Airlines
Deal found 8/7$1,372
Tue 28/1012:40PHL - SYD
2 stops40h 35mANA
Sat 15/1112:25SYD - PHL
2 stops41h 41mANA
Deal found 9/7$1,860
Wed 3/1212:50PHL - SYD
2 stops33h 35mQantas Airways
Wed 14/107:05SYD - PHL
2 stops26h 39mQantas Airways
Deal found 10/7$1,952
Fri 22/818:58PHL - SYD
2 stops46h 32mMultiple Airlines
Fri 29/817:45SYD - PHL
1 stop27h 16mMultiple Airlines
Deal found 8/7$1,978
Fri 24/1015:45PHL - SYD
2 stops30h 00mFiji Airways
Sat 15/1114:30SYD - PHL
2 stops22h 43mFiji Airways
Deal found 10/7$1,996
Tue 21/1006:34PHL - BNE
2 stops37h 26mAir New Zealand
Mon 3/1111:10BNE - PHL
2 stops26h 36mAir New Zealand
Deal found 9/7$2,014
Wed 20/818:50PHL - BNE
2 stops25h 45mFiji Airways
Tue 9/911:35BNE - PHL
2 stops25h 54mFiji Airways
Deal found 9/7$2,060
Sat 8/1117:58PHL - MEL
2 stops48h 57mAir New Zealand
Sat 22/1118:50MEL - PHL
2 stops50h 28mAir New Zealand
Deal found 9/7$2,073
Mon 22/909:20PHL - SYD
2 stops32h 00mAir Canada
Tue 30/909:20SYD - PHL
2 stops26h 18mAir Canada
Deal found 9/7$2,102
Tue 21/1006:34PHL - BNE
2 stops37h 26mMultiple Airlines
Mon 3/1111:10BNE - PHL
3 stops28h 05mMultiple Airlines
Deal found 9/7$2,137
Sun 24/817:35PHL - MEL
2 stops36h 40mMultiple Airlines
Sat 13/909:45MEL - PHL
1 stop35h 14mMultiple Airlines
Deal found 9/7$2,207
Wed 8/1018:06PHL - PER
2 stops36h 34mQatar Airways
Tue 14/1022:45PER - PHL
1 stop46h 15mQatar Airways
Deal found 9/7$2,256

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 10 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

Wed 20/8

06:30-07:00

3 stops34h 30m

Sydney Kingsford Smith

Tue 26/8

09:30-00:20

2 stops28h 50m

$1,372

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 22/10

10:05-20:15

2 stops43h 10m

Sydney Kingsford Smith

Tue 4/11

21:45-14:06

2 stops32h 21m

$1,861

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

$1,952

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 22/8

18:58-07:30

2 stops46h 32m

Sydney Kingsford Smith

Fri 29/8

17:45-07:01

1 stop27h 16m

$1,978

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 21/10

06:34-10:00

2 stops37h 26m

Brisbane

Mon 3/11

11:10-22:46

2 stops26h 36m

$2,014

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 24/9

18:55-11:45

2 stops26h 50m

Sydney Kingsford Smith

Sat 11/10

14:45-22:50

2 stops23h 05m

$2,014

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 20/8

18:50-10:35

2 stops25h 45m

Brisbane

Tue 9/9

11:35-23:29

2 stops25h 54m

$2,060

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 8/11

17:58-10:55

2 stops48h 57m

Melbourne

Sat 22/11

18:50-05:18

2 stops50h 28m

$2,073

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 22/9

09:20-07:20

2 stops32h 00m

Sydney Kingsford Smith

Tue 30/9

09:20-21:38

2 stops26h 18m

$2,102

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 21/10

06:34-10:00

2 stops37h 26m

Brisbane

Mon 3/11

11:10-00:15

3 stops28h 05m

$2,137

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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 10 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 10 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
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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
898 reviews
ANA
8.4
Very Good
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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
494 reviews
ANA
8.4
Very Good
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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
929 reviews
ANA
8.4
Very Good
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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
873 reviews
ANA
8.4
Very Good
898 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.6

Comfort

8.2

Entertainment

7.9

Food

7.7

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 $1,042. However, be on the lookout for offers from Air New Zealand 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 10 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,315Average$1,765FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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