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Cheap flights from Philadelphia to Australia from $846

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 25/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

$1,647

One-way from

$846

Popular in

December

Cheapest in

September

Average price

$2,145
3/9-14/9
  • 3/9-14/9
  • 3 total stops
  • 88h 17m total
  • Philadelphia to Australia
Search Deals
25/6
  • 25/6
  • 1 total stop
  • 32h 50m total
  • Philadelphia to Australia
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($621 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($125 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Wed 3/918:40PHL - SYD
2 stops54h 00mMultiple Airlines
Sun 14/917:45SYD - PHL
1 stop34h 17mMultiple Airlines
Deal found 11/6$1,647
Thu 27/1115:30PHL - BNE
2 stops26h 10mAir Canada
Fri 12/1210:45BNE - PHL
2 stops38h 06mAir Canada
Deal found 10/6$1,807
Sat 1/1118:35PHL - SYD
2 stops26h 55mFiji Airways
Sat 15/1114:30SYD - PHL
2 stops22h 43mFiji Airways
Deal found 11/6$1,845
Fri 12/914:57PHL - MEL
2 stops31h 08mMultiple Airlines
Thu 25/913:30MEL - PHL
3 stops30h 02mMultiple Airlines
Deal found 11/6$1,934
Thu 14/818:45PHL - BNE
2 stops25h 40mFiji Airways
Tue 26/811:35BNE - PHL
2 stops27h 10mFiji Airways
Deal found 12/6$1,945
Sun 29/608:15PHL - BNE
2 stops37h 50mMultiple Airlines
Tue 8/714:15BNE - PHL
2 stops30h 45mMultiple Airlines
Deal found 12/6$1,974
Wed 10/908:15PHL - MEL
2 stops36h 35mAir New Zealand
Mon 22/918:55MEL - PHL
2 stops41h 31mAir New Zealand
Deal found 10/6$2,063
Wed 3/1215:30PHL - SYD
2 stops26h 05mAir Canada
Wed 14/111:20SYD - PHL
2 stops43h 30mAir Canada
Deal found 11/6$2,106
Wed 10/913:06PHL - BNE
2 stops29h 24mAir New Zealand
Fri 26/912:15BNE - PHL
2 stops24h 44mAir New Zealand
Deal found 10/6$2,140
Sun 2/1113:40PHL - MEL
2 stops31h 35mFiji Airways
Sat 8/1114:15MEL - PHL
2 stops22h 58mFiji Airways
Deal found 12/6$2,154
Wed 26/1118:25PHL - SYD
2 stops46h 20mAir New Zealand
Mon 15/1209:55SYD - PHL
2 stops42h 15mAir New Zealand
Deal found 11/6$2,168
Fri 12/914:57PHL - AVV
3 stops35h 08mMultiple Airlines
Thu 25/906:00AVV - PHL
3 stops46h 02mMultiple Airlines
Deal found 11/6$2,198

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 13 June 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 3/9

18:40-14:40

2 stops54h 00m

Sydney Kingsford Smith

Sun 14/9

17:45-14:02

1 stop34h 17m

$1,647

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Thu 27/11

15:30-08:40

2 stops26h 10m

Brisbane

Fri 12/12

10:45-09:51

2 stops38h 06m

$1,807

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 1/11

18:35-12:30

2 stops26h 55m

Sydney Kingsford Smith

Sat 15/11

14:30-21:13

2 stops22h 43m

$1,845

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 12/9

14:57-12:05

2 stops31h 08m

Melbourne

Thu 25/9

13:30-05:32

3 stops30h 02m

$1,934

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Thu 14/8

18:45-10:25

2 stops25h 40m

Brisbane

Tue 26/8

11:35-00:45

2 stops27h 10m

$1,945

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 29/6

08:15-12:05

2 stops37h 50m

Brisbane

Tue 8/7

14:15-07:00

2 stops30h 45m

$1,974

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 10/9

08:15-10:50

2 stops36h 35m

Melbourne

Mon 22/9

18:55-22:26

2 stops41h 31m

$2,063

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 3/12

15:30-09:35

2 stops26h 05m

Sydney Kingsford Smith

Wed 14/1

11:20-14:50

2 stops43h 30m

$2,106

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Wed 10/9

13:06-08:30

2 stops29h 24m

Brisbane

Fri 26/9

12:15-22:59

2 stops24h 44m

$2,140

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sun 2/11

13:40-13:15

2 stops31h 35m

Melbourne

Sat 8/11

14:15-21:13

2 stops22h 58m

$2,154

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 55 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 13 June 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.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Australia when rainfall is around 50.0 mm.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 13 June 2025.
To help decide which airline to fly from Philadelphia to Australia, see what other customers have to say about Air Tahiti Nui, ANA and Fiji Airways. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.3
Very Good
882 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.1
Very Good
194 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Emirates
8.1
Very Good
3,265 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air New Zealand
8.0
Very Good
483 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Entertainment

7.3

Crew

9.0

Overall

8.7

Comfort

8.1

Boarding

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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 $1,125. However, be on the lookout for offers from Qantas Airways and ANA, 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 - Sydney Kingsford Smith. You may also consider Philadelphia - Melbourne 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

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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,319Average$1,770FlexibilityNo 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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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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Not ready to book yet? You can track prices for flights from Philadelphia to Australia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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