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$758+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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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 April 25, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,177
(Trip.com)

One-way from

$758
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,391
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
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From Philadelphia to Australia
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One-way flight from Philadelphia to Australia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 25, 2025.

This Mytrip deal was found by Cheapflights users on 4/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/31:29 pmPHL - MEL
3 stops32h 46mMultiple Airlines
Thu 5/812:30 amMEL - PHL
3 stops44h 00mMultiple Airlines
Deal found 4/25$1,148
This Trip.com deal was found by Cheapflights users on 4/25. 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.
Fri 7/45:48 pmPHL - SYD
2 stops27h 57mMultiple Airlines
Sat 7/121:45 pmSYD - PHL
2 stops31h 13mMultiple Airlines
Deal found 4/25$1,177
This StudentUniverse deal was found by Cheapflights users on 4/25. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:30 amPHL - SYD
2 stops38h 05mAir New Zealand
Mon 12/1511:45 amSYD - PHL
2 stops26h 40mAir New Zealand
Deal found 4/25$1,254
This Gurufare deal was found by Cheapflights users on 4/24. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:06 pmPHL - MEL
2 stops31h 44mAir New Zealand
Mon 9/2212:05 pmMEL - PHL
2 stops31h 21mAir New Zealand
Deal found 4/24$1,355
This StudentUniverse deal was found by Cheapflights users on 4/25. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:08 pmPHL - SYD
2 stops28h 37mFiji Airways
Tue 6/101:15 pmSYD - PHL
2 stops23h 30mFiji Airways
Deal found 4/25$1,364
This oojo deal was found by Cheapflights users on 4/24. 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.
Wed 9/108:30 pmPHL - MEL
1 stop36h 40mQatar Airways
Mon 9/223:15 pmMEL - PHL
1 stop31h 45mQatar Airways
Deal found 4/24$1,365
This Air Canada deal was found by Cheapflights users on 4/25. 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.
Sun 9/73:25 pmPHL - SYD
2 stops25h 55mAir Canada
Wed 9/109:20 amSYD - PHL
2 stops26h 48mAir Canada
Deal found 4/25$1,414
This StudentUniverse deal was found by Cheapflights users on 4/25. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:15 amPHL - OOL
2 stops36h 30mAir New Zealand
Wed 9/311:55 amOOL - PHL
2 stops24h 31mAir New Zealand
Deal found 4/25$1,432
This FlightHub deal was found by Cheapflights users on 4/24. 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.
Thu 10/25:30 pmPHL - PER
2 stops37h 10mQatar Airways
Thu 10/163:20 pmPER - PHL
1 stop29h 40mQatar Airways
Deal found 4/24$1,501
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:25 amPHL - SYD
2 stops45h 20mAlaska Airlines
Thu 11/69:40 pmSYD - PHL
2 stops24h 21mAlaska Airlines
Deal found 4/25$1,507
This oojo deal was found by Cheapflights users on 4/25. 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.
Tue 8/268:30 pmPHL - SYD
1 stop43h 45mQatar Airways
Tue 9/211:00 amSYD - PHL
2 stops36h 00mQatar Airways
Deal found 4/25$1,514
This oojo deal was found by Cheapflights users on 4/23. 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.
Mon 9/88:30 pmPHL - BNE
1 stop31h 00mQatar Airways
Wed 9/249:55 amBNE - PHL
2 stops37h 05mQatar Airways
Deal found 4/23$1,523

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 April 25, 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

Fri 7/4

5:48 pm-11:45 am

2 stops27h 57m

Sydney Kingsford Smith

Sat 7/12

1:45 pm-6:58 am

2 stops31h 13m

$1,177

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 8/25

6:30 am-10:35 am

2 stops38h 05m

Sydney Kingsford Smith

Mon 12/15

11:45 am-10:25 pm

2 stops26h 40m

$1,254

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Thu 7/10

5:48 pm-12:15 pm

2 stops28h 27m

Melbourne

Sun 7/20

12:55 pm-6:58 am

2 stops32h 03m

$1,297

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 9/10

1:06 pm-10:50 am

2 stops31h 44m

Melbourne

Mon 9/22

12:05 pm-5:26 am

2 stops31h 21m

$1,355

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 5/27

5:08 pm-11:45 am

2 stops28h 37m

Sydney Kingsford Smith

Tue 6/10

1:15 pm-10:45 pm

2 stops23h 30m

$1,364

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 9/10

8:30 pm-11:10 pm

1 stop36h 40m

Melbourne

Mon 9/22

3:15 pm-9:00 am

1 stop31h 45m

$1,365

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 9/7

3:25 pm-7:20 am

2 stops25h 55m

Sydney Kingsford Smith

Wed 9/10

9:20 am-10:08 pm

2 stops26h 48m

$1,414

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Wed 8/27

8:15 am-10:45 am

2 stops36h 30m

Coolangatta Gold Coast

Wed 9/3

11:55 am-10:26 pm

2 stops24h 31m

$1,432

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Thu 10/2

5:30 pm-6:40 pm

2 stops37h 10m

Perth

Thu 10/16

3:20 pm-9:00 am

1 stop29h 40m

$1,501

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 8/26

8:30 pm-6:15 am

1 stop43h 45m

Sydney Kingsford Smith

Tue 9/2

11:00 am-9:00 am

2 stops36h 00m

$1,514

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 45 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 $1,046). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,643). 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 April 25, 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.

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 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

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 April 25, 2025.
Read reviews from past customers who have flown Air Tahiti Nui, Fiji Airways and Emirates from Philadelphia to Australia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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
188 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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
8.0
Very good
3,211 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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
470 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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.
Alaska Airlines
8.0
Very good
9,927 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Overall

8.8

Entertainment

7.3

Boarding

8.7

Crew

9.1

Food

7.8

Comfort

8.1

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?

    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.

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

    For one-way options, check prices for Etihad Airways. According to our data, you can fly for as low as $921. Users have also found prices from $973 and $1,000 on Fiji Airways and Qantas Airways, respectively.

  • 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 - Brisbane.

  • 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 $1,046). Flying from Philadelphia to Australia in December is currently the most expensive (average of $1,643). 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 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$337Average$1,813FlexibilityNo cancel feeOn-time71%
DeltaCheapest$717Average$1,050FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$862Average$1,478FlexibilityNo cancel feeOn-time69%
Fiji AirwaysCheapest$945Average$1,484FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$945Average$1,321FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,220Average$1,844FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,296Average$1,636FlexibilityNo cancel feeOn-time68%
Qantas AirwaysCheapest$1,336Average$2,078FlexibilityNo cancel feeOn-time74%

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