How long is the flight from Philadelphia to Australia?

Qantas Airways, American Airlines, and United Airlines can get you from Philadelphia to Australia in just under 25h 30m. Your travel time can differ by up to 6h 21m. Philadelphia and Australia are separated by a distance of 16549 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 - Brisbane or Philadelphia - Melbourne.

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.

$1,045+ 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 30 October 2026.

Sun 8/1117:05 -

2 stops48h 30m

Wed 18/1111:20 -

2 stops43h 19m

Deal found 26/10$1,630

Thu 3/1215:20 -

2 stops50h 15m

Sun 13/1211:20 -

2 stops43h 24m

Deal found 26/10$1,763

Thu 24/1205:45 -

2 stops34h 45m

Thu 14/110:40 -

2 stops23h 39m

Deal found 27/10$1,765

Sun 22/1115:20 -

2 stops26h 15m

Sun 16/509:20 -

2 stops26h 06m

Deal found 26/10$1,820

Wed 23/1209:00 -

1 stop31h 30m

Wed 13/111:20 -

1 stop21h 13m

Deal found 27/10$1,844

Thu 3/1207:34 -

3 stops56h 01m

Tue 8/1211:10 -

2 stops39h 46m

Deal found 27/10$1,844

Thu 5/1115:20 -

2 stops26h 15m

Sun 15/1111:20 -

2 stops43h 19m

Deal found 26/10$1,850

Sat 5/1215:20 -

2 stops26h 15m

Sat 29/509:20 -

2 stops43h 16m

Deal found 25/10$1,854

Mon 14/1215:55 -

2 stops26h 25m

Mon 21/1214:05 -

1 stop23h 08m

Deal found 30/10$1,859

Sun 13/1210:42 -

1 stop26h 18m

Wed 13/106:00 -

2 stops25h 15m

Deal found 28/10$1,860

Sun 8/1106:15 -

2 stops35h 30m

Thu 12/1110:45 -

2 stops42h 54m

Deal found 25/10$1,871

Tue 22/1216:58 -

2 stops47h 32m

Tue 12/111:20 -

2 stops27h 17m

Deal found 28/10$1,874

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 30 October 2026.

Mon 15/216:00 -

1 stop25h 30m

Sun 21/222:45 -

1 stop23h 37m

Deal found 25/10$1,857

Mon 15/213:43 -

2 stops27h 47m

Sun 21/212:00 -

1 stop21h 49m

Deal found 25/10$1,864

Mon 15/209:39 -

3 stops31h 51m

Sun 21/211:30 -

2 stops25h 58m

Deal found 25/10$1,897

Mon 18/120:45 -

1 stop41h 00m

Mon 15/218:30 -

2 stops36h 20m

Deal found 30/10$2,052

Mon 1/318:18 -

2 stops59h 12m

Mon 15/315:00 -

2 stops46h 28m

Deal found 29/10$2,075

Sun 13/1208:00 -

2 stops32h 55m

Thu 14/110:20 -

3 stops41h 44m

Deal found 28/10$2,217

Sun 28/309:15 -

3 stops35h 25m

Thu 1/406:00 -

3 stops30h 43m

Deal found 25/10$2,732

Mon 1/315:36 -

1 stop45h 24m

Mon 15/315:05 -

2 stops44h 24m

Deal found 29/10$1,897

Tue 2/214:06 -

2 stops25h 24m

Sat 13/213:10 -

1 stop22h 19m

Deal found 29/10$1,914

Thu 24/1209:00 -

1 stop31h 30m

Tue 12/111:20 -

1 stop20h 48m

Deal found 27/10$1,916

Sun 13/1209:20 -

1 stop31h 10m

Sun 20/1207:35 -

2 stops54h 24m

Deal found 29/10$1,962

Fri 19/306:10 -

2 stops37h 35m

Mon 22/310:55 -

2 stops39h 24m

Deal found 29/10$2,277

Tue 9/310:05 -

3 stops32h 30m

Wed 24/311:50 -

2 stops34h 32m

Deal found 29/10$2,282

Sat 12/1215:55 -

2 stops26h 25m

Sat 19/1214:05 -

1 stop23h 08m

Deal found 28/10$2,088

Sat 26/1216:58 -

2 stops47h 32m

Thu 14/119:50 -

2 stops42h 09m

Deal found 27/10$1,980

Sun 28/321:55 -

2 stops33h 30m

Thu 1/412:05 -

2 stops41h 00m

Deal found 26/10$2,423

Mon 1/308:00 -

2 stops34h 55m

Mon 15/310:20 -

3 stops40h 59m

Deal found 29/10$2,302

Sun 28/316:00 -

2 stops34h 30m

Thu 1/414:50 -

2 stops53h 32m

Deal found 25/10$2,177

Fri 25/1209:00 -

1 stop31h 30m

Thu 14/119:50 -

2 stops42h 09m

Deal found 27/10$2,019

Mon 15/209:15 -

3 stops36h 20m

Sun 21/207:00 -

3 stops31h 46m

Deal found 25/10$2,753

Tue 23/310:05 -

3 stops31h 30m

Sat 3/411:55 -

3 stops39h 30m

Deal found 29/10$2,368

Thu 24/1212:40 -

2 stops27h 50m

Thu 14/119:50 -

2 stops35h 41m

Deal found 27/10$2,019

Wed 23/1215:36 -

2 stops34h 24m

Wed 13/106:00 -

2 stops26h 30m

Deal found 27/10$2,527

Mon 7/1209:20 -

1 stop32h 00m

Fri 25/1209:15 -

1 stop25h 43m

Deal found 25/10$2,098

Wed 31/310:10 -

3 stops31h 35m

Sun 18/411:55 -

3 stops38h 30m

Deal found 27/10$2,567

Thu 24/1206:24 -

2 stops34h 06m

Mon 11/111:20 -

2 stops39h 44m

Deal found 25/10$2,149

Wed 25/1107:06 -

2 stops34h 24m

Sat 28/1122:45 -

2 stops23h 16m

Deal found 25/10$2,695

Wed 16/1208:00 -

2 stops32h 30m

Wed 20/111:20 -

2 stops22h 25m

Deal found 28/10$2,163

Fri 25/1206:00 -

1 stop34h 30m

Sun 10/111:20 -

2 stops39h 44m

Deal found 25/10$2,238

Fri 25/1206:00 -

1 stop34h 30m

Fri 8/111:20 -

2 stops39h 15m

Deal found 25/10$2,238

Find flight deals from Philadelphia to Australia

Round-trip from	$1,540
One-way from	$1,045
Popular in	January
Cheapest in	February
Average price	$2,271

Delta
31/3-18/4
4 total stops
69h 16m total
Philadelphia to Australia

Search Deals

8/12-31/12
3 total stops
35h 40m total
Philadelphia to Australia

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($37 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 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

Tue 8/12

08:40-12:20

3 stops35h 40m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,045

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 23/11

18:31-07:30

3 stops44h 59m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,099

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 11/11

17:49-10:15

3 stops49h 26m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,123

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sun 15/11

08:30-10:15

3 stops58h 45m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,185

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 8/2

10:41-20:25

3 stops41h 44m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,187

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 4/11

06:00-19:45

3 stops45h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,216

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sat 28/11

21:55-10:15

3 stops45h 20m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,317

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Thu 8/4

10:46-10:50

2 stops34h 04m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,358

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 11/11

20:45-17:30

1 stop29h 45m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,412

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sun 15/11

20:45-17:30

1 stop29h 45m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,419

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 50 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-MEL

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-BNE

PHL-MEL

PHL-OOL

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 $1,793). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,890). 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 4 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

1,121 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

Qantas Airways

7.5

Good

1,121 reviews

Qantas Airways

7.5

Good

1,121 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Jodie,Oct 2026

SYD - GFF

Pretty good but it was delayed by almost an hour

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?
Qantas Airways, American Airlines, and United Airlines can get you from Philadelphia to Australia in just under 25h 30m. Your travel time can differ by up to 6h 21m. Philadelphia and Australia are separated by a distance of 16549 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 - Brisbane or Philadelphia - Melbourne.
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 $1,793). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,890). 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

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Top airline flying from Philadelphia to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,949	Average$1,984	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.

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Cheap flights from Philadelphia to Australia from $1,045

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. 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 30 October 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 30 October 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 30 October 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 30 October 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 30 October 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 30 October 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Philadelphia to Australia

Round-trip from

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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 4 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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Philadelphia and Australia flights

Browse other Philadelphia and Australia flight options. Last updated on 30 October 2026.

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Philadelphia to 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 30 October 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 30 October 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 30 October 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 30 October 2026.