How long is the flight from Philadelphia to Australia?

Air Canada, United Airlines, and Qatar Airways can get you from Philadelphia to Australia in just under 22h 17m. Your travel time can differ by up to 15h 53m. 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.

$846+ 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 14 September 2026.

Tue 27/1015:57 -

1 stop26h 03m

Tue 3/1111:10 -

1 stop22h 39m

Deal found 11/9$1,277

Wed 21/1010:05 -

2 stops31h 15m

Wed 28/1010:20 -

2 stops27h 36m

Deal found 10/9$1,541

Tue 27/1015:20 -

2 stops26h 25m

Tue 3/1110:45 -

2 stops42h 59m

Deal found 12/9$1,587

Tue 27/1013:20 -

3 stops28h 25m

Tue 3/1110:45 -

2 stops42h 59m

Deal found 12/9$1,590

Tue 10/1117:05 -

3 stops70h 30m

Wed 20/106:00 -

3 stops32h 56m

Deal found 10/9$1,605

Tue 10/1109:15 -

3 stops36h 20m

Tue 19/108:00 -

3 stops30h 56m

Deal found 10/9$1,606

Tue 10/1109:15 -

3 stops37h 20m

Tue 24/1106:00 -

3 stops32h 56m

Deal found 10/9$1,615

Wed 28/1015:20 -

2 stops26h 25m

Wed 4/1106:05 -

3 stops31h 51m

Deal found 13/9$1,623

Tue 27/1010:54 -

2 stops30h 41m

Tue 3/1111:20 -

2 stops43h 24m

Deal found 11/9$1,639

Sun 8/1115:20 -

2 stops26h 15m

Wed 18/1111:20 -

2 stops43h 24m

Deal found 10/9$1,643

Thu 29/1009:15 -

3 stops38h 10m

Thu 5/1106:00 -

3 stops49h 51m

Deal found 13/9$1,646

Mon 26/1009:15 -

3 stops36h 20m

Mon 25/108:00 -

3 stops30h 56m

Deal found 13/9$1,655

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 14 September 2026.

Tue 10/1117:05 -

3 stops70h 30m

Wed 20/106:00 -

3 stops32h 56m

Deal found 10/9$1,605

Thu 29/1009:15 -

3 stops38h 10m

Thu 5/1106:00 -

3 stops49h 51m

Deal found 13/9$1,646

Wed 27/118:13 -

1 stop22h 17m

Wed 17/211:20 -

1 stop25h 00m

Deal found 9/9$1,756

Wed 17/220:45 -

2 stops33h 35m

Wed 24/215:50 -

1 stop39h 00m

Deal found 12/9$1,816

Thu 29/1015:57 -

2 stops30h 08m

Thu 5/1106:05 -

2 stops25h 52m

Deal found 13/9$1,905

Thu 29/1021:45 -

1 stop29h 05m

Thu 5/1123:40 -

1 stop31h 10m

Deal found 14/9$1,990

Mon 12/1015:57 -

2 stops30h 08m

Mon 19/1006:10 -

2 stops25h 09m

Deal found 12/9$2,164

Thu 29/1006:00 -

3 stops41h 15m

Thu 5/1112:05 -

2 stops26h 22m

Deal found 13/9$2,577

Sun 25/1009:10 -

3 stops42h 50m

Sun 1/1106:00 -

3 stops31h 56m

Deal found 10/9$1,661

Wed 28/1010:54 -

2 stops29h 36m

Wed 4/1111:20 -

1 stop20h 55m

Deal found 13/9$1,756

Mon 8/320:45 -

1 stop33h 00m

Mon 15/312:20 -

2 stops39h 30m

Deal found 12/9$1,823

Mon 2/1109:15 -

3 stops38h 20m

Wed 11/1106:00 -

3 stops50h 21m

Deal found 12/9$1,705

Sun 8/1115:20 -

2 stops50h 25m

Thu 12/1110:45 -

2 stops42h 59m

Deal found 11/9$2,023

Sat 24/1016:28 -

1 stop23h 27m

Sat 7/1111:05 -

2 stops25h 09m

Deal found 12/9$2,029

Sun 20/1218:51 -

3 stops45h 39m

Wed 30/1211:20 -

2 stops37h 36m

Deal found 13/9$1,845

Thu 7/120:45 -

1 stop30h 35m

Fri 15/122:10 -

1 stop32h 40m

Deal found 9/9$1,775

Sun 25/1021:45 -

1 stop34h 35m

Sun 1/1118:50 -

2 stops36h 00m

Deal found 10/9$1,987

Mon 8/309:15 -

3 stops46h 05m

Mon 15/322:55 -

3 stops52h 55m

Deal found 13/9$2,044

Sun 20/1209:50 -

2 stops54h 40m

Fri 1/111:20 -

2 stops41h 54m

Deal found 10/9$1,883

Mon 26/1009:15 -

3 stops44h 05m

Mon 25/106:00 -

3 stops50h 21m

Deal found 13/9$1,807

Thu 29/1021:45 -

2 stops43h 45m

Thu 5/1122:00 -

1 stop32h 20m

Deal found 13/9$2,040

Tue 22/1209:50 -

2 stops54h 40m

Fri 1/111:20 -

2 stops41h 54m

Deal found 10/9$1,883

Sun 25/1008:55 -

2 stops35h 25m

Sun 1/1111:00 -

2 stops45h 49m

Deal found 10/9$2,330

Fri 8/113:30 -

2 stops48h 15m

Tue 26/116:10 -

1 stop38h 40m

Deal found 13/9$2,056

Tue 29/1206:24 -

2 stops58h 06m

Mon 11/119:50 -

2 stops55h 15m

Deal found 13/9$1,916

Thu 8/1009:27 -

2 stops42h 13m

Thu 15/1006:20 -

3 stops31h 11m

Deal found 10/9$2,839

Sun 25/1009:10 -

3 stops40h 35m

Sun 1/1122:55 -

3 stops54h 26m

Deal found 10/9$1,997

Sat 10/1015:57 -

2 stops28h 23m

Sat 17/1006:00 -

2 stops25h 19m

Deal found 11/9$2,535

Wed 13/120:45 -

2 stops33h 35m

Mon 1/219:30 -

2 stops35h 20m

Deal found 13/9$2,142

Tue 13/1013:24 -

2 stops27h 31m

Tue 20/1011:20 -

1 stop21h 01m

Deal found 13/9$2,036

Find flight deals from Philadelphia to Australia

Round-trip from	$1,277
One-way from	$846
Popular in	January
Cheapest in	February
Average price	$1,937

Qantas Airways
27/10-3/11
2 total stops
48h 42m total
Philadelphia to Australia

Search Deals

24/10-31/12
2 total stops
57h 35m 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 ($41 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

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 23/9

17:45-15:45

3 stops56h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,068

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 24/11

07:00-16:20

3 stops41h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,137

PhiladelphiaCanberra

PHL Philadelphia - CBR Canberra

PHLCBR

Philadelphia

Fri 15/1

14:18-16:30

3 stops58h 12m

Canberra

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,177

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 30/11

18:30-07:10

2 stops44h 40m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,325

PhiladelphiaCairns

PHL Philadelphia - CNS Cairns

PHLCNS

Philadelphia

Sun 31/1

10:41-15:15

3 stops37h 34m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,329

PhiladelphiaCairns

PHL Philadelphia - CNS Cairns

PHLCNS

Philadelphia

Thu 12/11

10:40-16:50

3 stops39h 10m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,375

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 30/11

20:45-17:50

1 stop29h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,383

PhiladelphiaCairns

PHL Philadelphia - CNS Cairns

PHLCNS

Philadelphia

Thu 12/11

20:45-19:05

2 stops55h 20m

Cairns

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,415

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Fri 4/12

20:45-17:50

1 stop29h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,516

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Thu 3/12

20:45-17:50

1 stop29h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,516

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 60 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-MEL

PHL-CNS

PHL-CBR

PHL-OOL

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-MEL

PHL-CNS

PHL-CBR

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 $1,576). Flying from Philadelphia to Australia in October is currently the most expensive (average of $2,580). 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 Qatar Airways can get you from Philadelphia to Australia in just under 22h 17m. Your travel time can differ by up to 15h 53m. 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 $1,576). Flying from Philadelphia to Australia in October is currently the most expensive (average of $2,580). 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.

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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.

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 $846

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. 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 14 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 14 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 14 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 14 September 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 14 September 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 14 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 14 September 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 14 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

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

Alternative routes for Philadelphia to Australia

See prices for flight routes from nearby airports that may be better suited for you.

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 14 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 14 September 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 14 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 14 September 2026.