Australia

$571+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Mar 5 — Mar 121
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Cheap 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 February 3, 2026.

This oojo deal was found by Cheapflights users on 2/1. 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 2/45:39 pm
PHL
-
MEL
2 stops29h 56m
Qantas Airways
Wed 2/1112:00 pm
MEL
-
PHL
1 stop24h 16m
Qantas Airways
Deal found 2/1$938
This oojo deal was found by Cheapflights users on 2/1. 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 2/45:39 pm
PHL
-
MEL
2 stops29h 56m
Qantas Airways
Sun 3/812:00 pm
MEL
-
PHL
1 stop32h 51m
Qantas Airways
Deal found 2/1$949
This oojo deal was found by Cheapflights users on 1/31. 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.
Sun 2/15:39 pm
PHL
-
SYD
2 stops29h 11m
Qantas Airways
Sun 2/811:20 am
SYD
-
PHL
1 stop24h 56m
Qantas Airways
Deal found 1/31$956
This oojo deal was found by Cheapflights users on 2/2. 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.
Sun 2/225:17 pm
PHL
-
MEL
2 stops37h 28m
Qantas Airways
Sat 2/2812:00 pm
MEL
-
PHL
1 stop27h 50m
Qantas Airways
Deal found 2/2$958
This oojo deal was found by Cheapflights users on 2/1. 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 2/22:30 pm
PHL
-
MEL
2 stops34h 45m
Qantas Airways
Sun 3/812:00 pm
MEL
-
PHL
1 stop32h 51m
Qantas Airways
Deal found 2/1$959
This oojo deal was found by Cheapflights users on 2/3. 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.
Sat 2/213:59 pm
PHL
-
MEL
2 stops48h 21m
Qantas Airways
Wed 3/412:00 pm
MEL
-
PHL
1 stop23h 48m
Qantas Airways
Deal found 2/3$967
This oojo deal was found by Cheapflights users on 2/3. 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 3/245:17 pm
PHL
-
BNE
2 stops33h 53m
Qantas Airways
Fri 4/108:35 pm
BNE
-
PHL
1 stop23h 17m
Qantas Airways
Deal found 2/3$970
This oojo deal was found by Cheapflights users on 2/3. 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 3/22:16 pm
PHL
-
SYD
2 stops38h 34m
Qantas Airways
Mon 3/1611:20 am
SYD
-
PHL
1 stop23h 22m
Qantas Airways
Deal found 2/3$973
This Qantas Airways deal was found by Cheapflights users on 2/2. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:31 pm
PHL
-
BNE
1 stop23h 29m
Qantas Airways
Wed 2/256:30 pm
BNE
-
PHL
2 stops44h 20m
Qantas Airways
Deal found 2/2$1,006
This FlightHub deal was found by Cheapflights users on 2/1. 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.
Wed 2/252:16 pm
PHL
-
SYD
1 stop26h 44m
Qantas Airways
Wed 3/411:20 am
SYD
-
PHL
1 stop24h 28m
Qantas Airways
Deal found 2/1$1,050
This FlightHub deal was found by Cheapflights users on 2/2. 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.
Mon 3/22:57 pm
PHL
-
SYD
1 stop23h 58m
Qantas Airways
Mon 3/911:20 am
SYD
-
PHL
1 stop23h 22m
Qantas Airways
Deal found 2/2$1,051
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:00 pm
PHL
-
SYD
1 stop23h 00m
Qantas Airways
Wed 3/251:05 pm
SYD
-
PHL
1 stop21h 20m
Qantas Airways
Deal found 2/1$1,052

Find flight deals from Philadelphia to Australia

Keep the following information in mind while searching for Philadelphia to Australia flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$958
(oojo)

One-way from

$571
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,046
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
From Philadelphia to Australia
One-way flight from Philadelphia to Australia
Highest demand for flights based on searches. 10% potential increase in price ($172 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($41 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 3, 2026.
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

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 2/21

3:59 pm-8:20 am

2 stops48h 21m

Melbourne

Wed 3/4

12:00 pm-7:48 pm

1 stop23h 48m

$967

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/24

5:17 pm-5:10 pm

2 stops33h 53m

Brisbane

Fri 4/10

8:35 pm-5:52 am

1 stop23h 17m

$970

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 2/21

2:31 pm-5:00 am

1 stop23h 29m

Brisbane

Wed 2/25

6:30 pm-11:50 pm

2 stops44h 20m

$1,006

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/23

2:16 pm-9:00 am

1 stop26h 44m

Sydney Kingsford Smith

Tue 3/3

2:05 pm-8:49 pm

1 stop22h 44m

$1,050

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/2

2:57 pm-6:55 am

1 stop23h 58m

Sydney Kingsford Smith

Mon 3/16

11:20 am-7:42 pm

1 stop23h 22m

$1,052

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/23

3:37 pm-9:00 am

2 stops25h 23m

Sydney Kingsford Smith

Tue 3/3

11:20 am-7:40 pm

2 stops24h 20m

$1,056

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/2

6:10 am-8:30 am

2 stops34h 20m

Sydney Kingsford Smith

Mon 3/16

1:15 pm-11:59 pm

2 stops25h 44m

$1,074

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/1

7:00 am-6:50 am

2 stops31h 50m

Sydney Kingsford Smith

Tue 3/24

1:15 pm-11:59 pm

2 stops25h 44m

$1,075

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 3/6

2:16 pm-9:00 am

1 stop26h 44m

Sydney Kingsford Smith

Mon 3/16

11:20 am-7:42 pm

1 stop23h 22m

$1,125

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 3/20

5:17 pm-10:45 pm

2 stops38h 28m

Melbourne

Fri 3/27

12:00 pm-7:42 pm

1 stop22h 42m

$1,154

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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 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 $166). Flying from Philadelphia to Australia in January is currently the most expensive (average of $954). 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.

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 February 3, 2026.
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.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

Boarding

8.1

Food

7.4

Overall

8.0

Entertainment

7.5

Crew

8.5

Comfort

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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?

    Qantas Airways, American Airlines, and Delta can get you from Philadelphia to Australia in just under 25h 23m. Your travel time can differ by up to 22h 58m. The distance between Philadelphia and Australia is about 9862 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 Qantas Airways. According to our data, you can fly for as low as $628. Users have also found prices from $668 and $772 on Fiji Airways and American Airlines, 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 $166). Flying from Philadelphia to Australia in January is currently the most expensive (average of $954). 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$535Average$879FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$539Average$1,607FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$765Average$1,379FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$954Average$1,514FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$1,044Average$1,850FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,198Average$1,609FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$1,220Average$1,548FlexibilityNo cancel feeOn-time78%
Qatar AirwaysCheapest$1,298Average$1,608FlexibilityNo cancel feeOn-time68%

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