How long is the flight from Philadelphia to Australia?

Air Canada, United Airlines, and Qantas Airways can get you from Philadelphia to Australia in just under 26h 20m. Your travel time can differ by up to 4h. Philadelphia and Australia are separated by a distance of 15377 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.

$816+ 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 9 September 2026.

Wed 21/1010:05 -

3 stops31h 15m

Wed 28/1010:20 -

3 stops43h 24m

Deal found 6/9$1,552

Sat 24/1015:25 -

2 stops26h 20m

Sat 31/1009:45 -

2 stops43h 59m

Deal found 8/9$1,570

Tue 20/1015:25 -

2 stops49h 40m

Tue 27/1009:45 -

2 stops42h 59m

Deal found 5/9$1,577

Mon 26/1015:20 -

2 stops26h 15m

Mon 9/1111:20 -

2 stops43h 24m

Deal found 5/9$1,584

Sat 24/1010:05 -

2 stops31h 30m

Sat 31/1010:20 -

2 stops27h 36m

Deal found 9/9$1,627

Sun 8/1115:20 -

2 stops26h 15m

Wed 18/1111:20 -

2 stops43h 24m

Deal found 5/9$1,632

Sun 1/1109:15 -

2 stops32h 20m

Tue 10/1111:20 -

2 stops43h 24m

Deal found 7/9$1,638

Mon 26/1009:15 -

3 stops44h 05m

Tue 3/1106:00 -

3 stops50h 21m

Deal found 7/9$1,643

Mon 26/1009:15 -

3 stops36h 20m

Tue 3/1107:30 -

3 stops31h 26m

Deal found 7/9$1,645

Mon 19/1010:05 -

2 stops31h 15m

Mon 26/1010:20 -

3 stops43h 24m

Deal found 4/9$1,645

Sun 25/1009:10 -

3 stops36h 15m

Mon 2/1108:00 -

3 stops30h 56m

Deal found 7/9$1,646

Mon 19/1007:00 -

3 stops45h 55m

Mon 26/1019:55 -

3 stops41h 31m

Deal found 4/9$1,654

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 9 September 2026.

Sat 24/1015:25 -

2 stops26h 20m

Sat 31/1009:45 -

2 stops43h 59m

Deal found 8/9$1,570

Tue 9/209:15 -

3 stops38h 20m

Wed 24/206:00 -

3 stops50h 21m

Deal found 5/9$1,643

Wed 17/214:14 -

2 stops28h 06m

Wed 24/214:05 -

1 stop21h 43m

Deal found 4/9$1,758

Wed 10/220:45 -

2 stops33h 35m

Thu 25/215:50 -

1 stop39h 00m

Deal found 6/9$1,804

Tue 17/1119:40 -

2 stops44h 50m

Fri 4/1211:20 -

1 stop20h 38m

Deal found 5/9$1,819

Fri 26/220:45 -

1 stop30h 35m

Sat 6/321:10 -

1 stop33h 40m

Deal found 4/9$1,850

Mon 2/1108:00 -

2 stops34h 55m

Wed 11/1108:15 -

2 stops49h 00m

Deal found 9/9$1,909

Mon 9/1110:40 -

2 stops44h 25m

Thu 12/1100:45 -

2 stops33h 51m

Deal found 5/9$2,518

Mon 19/1007:00 -

3 stops40h 40m

Mon 26/1006:00 -

3 stops48h 21m

Deal found 4/9$1,703

Thu 19/1109:15 -

3 stops37h 10m

Tue 24/1119:55 -

3 stops59h 56m

Deal found 7/9$1,758

Sun 8/1120:45 -

2 stops33h 35m

Wed 18/1115:50 -

1 stop39h 00m

Deal found 8/9$1,805

Sat 14/1119:53 -

2 stops68h 37m

Mon 30/1105:05 -

2 stops45h 32m

Deal found 8/9$1,822

Sat 24/1017:30 -

1 stop22h 20m

Sat 31/1013:10 -

1 stop21h 28m

Deal found 8/9$1,876

Mon 19/1021:30 -

2 stops46h 05m

Mon 26/1022:00 -

1 stop32h 20m

Deal found 4/9$1,718

Mon 28/1209:50 -

2 stops54h 40m

Tue 12/111:20 -

2 stops25h 13m

Deal found 5/9$1,859

Sun 8/1115:20 -

2 stops50h 25m

Thu 12/1110:45 -

2 stops42h 59m

Deal found 4/9$2,009

Sun 20/1218:51 -

2 stops45h 39m

Wed 30/1211:20 -

2 stops37h 36m

Deal found 9/9$1,859

Thu 19/1109:15 -

2 stops37h 10m

Tue 24/1119:55 -

2 stops59h 56m

Deal found 7/9$1,897

Mon 1/209:30 -

3 stops37h 45m

Sun 7/219:50 -

3 stops51h 55m

Deal found 7/9$2,330

Mon 8/309:15 -

3 stops46h 05m

Mon 15/322:55 -

3 stops52h 55m

Deal found 9/9$2,033

Mon 19/1021:30 -

1 stop28h 00m

Mon 26/1022:00 -

1 stop32h 20m

Deal found 4/9$2,247

Thu 24/915:42 -

2 stops27h 28m

Thu 1/1009:10 -

1 stop23h 32m

Deal found 4/9$2,353

Sun 1/1106:00 -

2 stops34h 55m

Mon 9/1112:10 -

3 stops37h 42m

Deal found 8/9$1,966

Fri 25/1213:01 -

2 stops27h 29m

Sat 9/111:20 -

3 stops39h 54m

Deal found 7/9$1,972

Mon 19/1021:30 -

1 stop33h 05m

Mon 26/1010:45 -

2 stops41h 05m

Deal found 4/9$2,290

Mon 19/1007:00 -

3 stops43h 25m

Mon 26/1022:40 -

3 stops36h 16m

Deal found 4/9$2,013

Mon 12/1018:30 -

1 stop22h 25m

Tue 20/1011:20 -

1 stop21h 01m

Deal found 8/9$2,024

Fri 2/1017:30 -

2 stops32h 00m

Sat 10/1006:00 -

2 stops39h 16m

Deal found 6/9$2,465

Mon 2/1120:45 -

1 stop33h 00m

Fri 6/1122:45 -

1 stop29h 05m

Deal found 4/9$2,304

Mon 2/1112:40 -

2 stops30h 15m

Wed 11/1112:10 -

3 stops37h 42m

Deal found 7/9$2,027

Find flight deals from Philadelphia to Australia

Round-trip from	$1,552
One-way from	$816
Popular in	January
Cheapest in	February
Average price	$1,925

Air Canada
21/10-28/10
6 total stops
74h 39m total
Philadelphia to Australia

Search Deals

17/10-31/12
2 total stops
33h 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 ($39 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

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sat 17/10

05:50-05:00

2 stops33h 10m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$816

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 8/12

14:45-05:50

2 stops48h 05m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$877

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 24/10

05:50-06:25

2 stops57h 35m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$891

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Fri 23/10

20:44-05:50

2 stops43h 06m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$906

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 22/9

10:37-05:00

2 stops28h 23m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$935

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 23/9

06:00-07:30

2 stops35h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$950

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 22/9

17:45-07:30

2 stops47h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$952

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 7/12

14:45-05:50

2 stops48h 05m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$962

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 22/9

21:30-17:30

1 stop30h 00m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,078

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Fri 15/1

18:14-06:25

2 stops44h 11m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,171

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 58 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-SYD

PHL-BNE

PHL-AVV

PHL-MEL

PHL-ADL

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-SYD

PHL-BNE

PHL-AVV

PHL-MEL

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 $1,566). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,480). 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.

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?
Air Canada, United Airlines, and Qantas Airways can get you from Philadelphia to Australia in just under 26h 20m. Your travel time can differ by up to 4h. Philadelphia and Australia are separated by a distance of 15377 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 $1,566). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,480). 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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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.

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Cheap flights from Philadelphia to Australia from $816

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/10. 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 9 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 9 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 9 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 9 September 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 9 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 9 September 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Find flight deals from Philadelphia to Australia

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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.

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

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Philadelphia and Australia flights

Browse other Philadelphia and Australia flight options. Last updated on 9 September 2026.

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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 9 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 9 September 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 9 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 9 September 2026.