How long is the flight from Philadelphia to Australia?

Qatar Airways, Air Canada, and Qantas Airways can get you from Philadelphia to Australia in just under 23h 27m. Your travel time can differ by up to 5h 38m. Philadelphia and Australia are separated by a distance of 15871 km. Both multi-stop and direct flights can be found to your destination and back.

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.

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).

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.

What is the cheapest time of day to fly from PHL to AU?

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.

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.

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.

$959+ Cheap Flights from Philadelphia to Australia

Cheap flight deals from Philadelphia to Australia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 28 September 2026.

Wed 4/1120:45 -

1 stop34h 35m

Wed 18/1123:40 -

1 stop31h 10m

Deal found 27/9$1,711

Sun 8/1109:15 -

2 stops32h 20m

Sun 15/1111:20 -

2 stops43h 24m

Deal found 24/9$1,751

Sun 8/1117:05 -

2 stops48h 30m

Wed 18/1111:20 -

2 stops43h 24m

Deal found 24/9$1,761

Tue 10/1120:45 -

1 stop42h 05m

Tue 17/1115:50 -

1 stop39h 00m

Deal found 26/9$1,765

Tue 10/1120:45 -

1 stop34h 35m

Tue 17/1123:40 -

1 stop31h 10m

Deal found 27/9$1,768

Wed 21/1021:30 -

1 stop34h 35m

Wed 28/1023:40 -

1 stop31h 10m

Deal found 25/9$1,771

Tue 10/1120:45 -

1 stop34h 35m

Tue 17/1123:40 -

1 stop31h 10m

Deal found 26/9$1,772

Sun 8/1120:45 -

1 stop34h 35m

Sun 15/1123:40 -

1 stop31h 10m

Deal found 24/9$1,776

Fri 6/1120:45 -

1 stop34h 35m

Thu 19/1117:10 -

1 stop37h 40m

Deal found 25/9$1,778

Mon 2/1120:45 -

1 stop34h 35m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 28/9$1,789

Thu 5/1115:20 -

2 stops26h 15m

Sun 15/1111:20 -

2 stops43h 24m

Deal found 24/9$1,808

Tue 10/1115:20 -

2 stops26h 15m

Tue 17/1111:20 -

2 stops43h 24m

Deal found 26/9$1,809

Best flights from Philadelphia to Australia
Discover carefully curated flight deals from Philadelphia to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Mon 1/220:45 -

1 stop41h 00m

Thu 11/216:10 -

1 stop38h 40m

Deal found 27/9$1,846

Thu 29/1015:20 -

2 stops26h 15m

Thu 5/1111:20 -

2 stops43h 24m

Deal found 28/9$1,970

Sun 8/1106:00 -

2 stops34h 55m

Sun 15/1112:10 -

3 stops37h 42m

Deal found 24/9$2,008

Sat 24/1016:28 -

1 stop23h 27m

Sat 7/1111:00 -

2 stops25h 14m

Deal found 24/9$2,127

Wed 21/1013:24 -

2 stops28h 51m

Wed 28/1010:30 -

2 stops23h 21m

Deal found 28/9$2,147

Mon 9/1105:52 -

2 stops31h 48m

Fri 13/1107:20 -

2 stops31h 10m

Deal found 26/9$3,229

Wed 17/220:45 -

2 stops33h 35m

Wed 24/215:50 -

1 stop39h 00m

Deal found 27/9$1,850

Wed 10/220:45 -

2 stops33h 35m

Wed 17/215:50 -

1 stop39h 00m

Deal found 25/9$1,852

Wed 10/310:05 -

3 stops30h 50m

Wed 17/308:15 -

2 stops38h 30m

Deal found 27/9$2,070

Thu 5/1109:10 -

1 stop32h 10m

Thu 19/1111:50 -

1 stop26h 59m

Deal found 28/9$2,276

Mon 2/1108:00 -

2 stops32h 55m

Wed 11/1112:10 -

3 stops37h 42m

Deal found 26/9$2,078

Sun 1/1106:00 -

2 stops34h 55m

Sun 8/1110:20 -

3 stops39h 32m

Deal found 27/9$2,085

Tue 10/1112:40 -

2 stops33h 00m

Tue 17/1107:20 -

2 stops24h 55m

Deal found 26/9$2,337

Mon 21/1215:35 -

2 stops32h 35m

Sun 10/121:50 -

2 stops39h 41m

Deal found 24/9$2,577

Sat 5/1209:20 -

2 stops31h 35m

Sat 12/1212:10 -

3 stops37h 47m

Deal found 27/9$2,219

Mon 9/1120:45 -

1 stop42h 05m

Thu 12/1115:50 -

1 stop39h 00m

Deal found 24/9$2,604

Fri 20/1110:54 -

2 stops30h 11m

Sat 28/1109:10 -

1 stop25h 35m

Deal found 28/9$2,681

Thu 4/310:05 -

3 stops32h 30m

Wed 24/311:50 -

3 stops37h 17m

Deal found 27/9$2,246

Thu 29/1017:30 -

1 stop22h 25m

Thu 5/1111:10 -

1 stop25h 04m

Deal found 28/9$2,269

Wed 21/1009:27 -

2 stops34h 28m

Wed 28/1008:15 -

3 stops40h 37m

Deal found 28/9$2,819

Tue 23/312:15 -

2 stops37h 30m

Mon 29/309:45 -

1 stop24h 40m

Deal found 26/9$3,128

Find flight deals from Philadelphia to Australia

Round-trip from	$1,711
One-way from	$959
Popular in	January
Cheapest in	February
Average price	$1,978

4/11-18/11
2 total stops
65h 45m total
Philadelphia to Australia

Search Deals

16/2-31/12
2 total stops
32h 10m total
Philadelphia to Australia

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($42 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sun 25/10

05:50-15:35

3 stops42h 45m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,046

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 16/2

06:15-20:25

3 stops46h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,098

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Fri 5/3

18:55-20:05

3 stops57h 10m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,202

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 11/11

15:55-07:10

2 stops47h 15m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,204

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 28/10

07:25-12:30

2 stops38h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,205

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 12/10

20:44-08:40

3 stops44h 56m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,208

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 13/10

08:30-19:10

3 stops43h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,215

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sun 25/10

21:45-23:20

1 stop34h 35m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,305

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Tue 10/11

20:45-23:20

1 stop34h 35m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,313

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 23/12

16:56-11:05

3 stops50h 09m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,343

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Showing 1-10 of 48 resultsSorted by cheapest first

...

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.

PHL-MEL

PHL-SYD

PHL-OOL

PHL-TSV

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

PHL-AU0

PHL-MEL

PHL-SYD

PHL-OOL

PHL-TSV

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 $1,573). Flying from Philadelphia to Australia in October is currently the most expensive (average of $2,614). 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.

How far ahead should I book a flight from Philadelphia to Australia?

The best time to book flights from Philadelphia to Australia is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Australia

Check out reviews from past customers who have flown with Qantas Airways 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.

Qantas Airways

7.5

Good

1,102 reviews

Check prices

Reviews

1 / 20

6.0

Good

Brian,Sept 2026

HID - CNS

Requested special assistance (wheelchair) for my 95yo mother, but airport staff forgot about it. When it can time to board she wasn’t able to. We had to wait until all passengers had boarded & wait for ground staff to arrive with wheelchair

Qantas Airways

7.5

Good

1,102 reviews

Qantas Airways

7.5

Good

1,102 reviews

Check prices

Reviews

1 / 20

6.0

Good

Brian,Sept 2026

HID - CNS

Related info for your journey

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.
How long is the flight from Philadelphia to Australia?
Qatar Airways, Air Canada, and Qantas Airways can get you from Philadelphia to Australia in just under 23h 27m. Your travel time can differ by up to 5h 38m. Philadelphia and Australia are separated by a distance of 15871 km. Both multi-stop and direct flights can be found to your destination and back.
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, February is the cheapest month in which you can book a flight from Philadelphia to Australia (average of $1,573). Flying from Philadelphia to Australia in October is currently the most expensive (average of $2,614). 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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Top airline flying from Philadelphia to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,953	Average$1,987	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

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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.

Can Cheapflights notify me if prices for flights from Philadelphia to Australia become cheaper?

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Cheap flights from Philadelphia to Australia from $959

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Philadelphia to Australia

Cheapest flights from Philadelphia to AustraliaExplore 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 28 September 2026.

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 28 September 2026.

Best flights from Philadelphia to AustraliaDiscover carefully curated flight deals from Philadelphia to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Discover carefully curated flight deals from Philadelphia to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 28 September 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 28 September 2026 and is based on user searches.

One-way flights from Philadelphia to AustraliaSearch for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.

Find flight deals from Philadelphia to Australia

Round-trip from

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Cheapest in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Australia that are best for you.

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.

Cheapflights Insights

What is the cheapest month to book a flight from Philadelphia to Australia?

How far ahead should I book a flight from Philadelphia to Australia?

The best time to book flights from Philadelphia to Australia is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Australia

Check out reviews from past customers who have flown with Qantas Airways 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.

Related info for your journey

What airport do you fly from for flights from Philadelphia to Australia?

How long is the flight from Philadelphia to Australia?

What are the most popular routes from Philadelphia to Australia?

Can I find deals for flights from Philadelphia to Australia that include hotel bookings?

How can I find direct flights from Philadelphia to Australia?

Can I find deals for business class flights from Philadelphia to Australia?

What is the cheapest month to book a flight from Philadelphia to Australia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Australia

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Complete your trip

Complete your trip to Australia by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Philadelphia to Australia by cabin class

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Philadelphia and Australia flights

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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 28 September 2026.

Best flights from Philadelphia to Australia
Discover carefully curated flight deals from Philadelphia to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 September 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 28 September 2026 and is based on user searches.

One-way flights from Philadelphia to Australia
Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 28 September 2026.