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 33h 35m. Your travel time can differ by up to 10h 20m. 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.

$934+ 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 7 October 2026.

Wed 4/1120:45 -

1 stop34h 35m

Wed 18/1123:40 -

1 stop31h 10m

Deal found 6/10$1,787

Sun 8/1117:05 -

2 stops48h 30m

Wed 18/1111:20 -

2 stops43h 24m

Deal found 5/10$1,839

Wed 28/1021:45 -

1 stop34h 35m

Wed 18/1123:40 -

1 stop31h 10m

Deal found 6/10$1,880

Wed 28/1016:00 -

1 stop23h 25m

Wed 4/1111:05 -

2 stops25h 09m

Deal found 4/10$1,885

Thu 5/1115:20 -

2 stops26h 15m

Sun 15/1111:20 -

2 stops43h 24m

Deal found 5/10$1,888

Sun 8/1120:45 -

1 stop42h 05m

Wed 18/1115:50 -

1 stop39h 00m

Deal found 6/10$1,890

Mon 16/1110:54 -

3 stops30h 41m

Fri 4/1211:20 -

2 stops43h 24m

Deal found 4/10$1,900

Mon 2/1120:45 -

1 stop29h 05m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 6/10$1,908

Wed 4/1120:45 -

1 stop29h 05m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 7/10$1,936

Tue 27/1021:45 -

1 stop34h 35m

Wed 18/1123:40 -

1 stop31h 10m

Deal found 6/10$1,943

Wed 18/1120:45 -

1 stop34h 35m

Wed 25/1117:10 -

1 stop37h 40m

Deal found 4/10$1,951

Mon 2/1108:00 -

2 stops32h 55m

Wed 11/1112:10 -

2 stops35h 29m

Deal found 6/10$1,965

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 7 October 2026.

Wed 17/220:45 -

2 stops33h 35m

Wed 24/215:50 -

1 stop39h 00m

Deal found 6/10$1,860

Mon 1/309:15 -

3 stops36h 20m

Mon 15/308:00 -

3 stops46h 50m

Deal found 4/10$1,959

Mon 2/1108:00 -

2 stops32h 55m

Wed 11/1112:10 -

3 stops37h 42m

Deal found 6/10$2,009

Sat 12/1217:05 -

1 stop43h 55m

Sat 9/117:45 -

2 stops42h 51m

Deal found 2/10$2,021

Wed 4/1113:16 -

3 stops29h 14m

Wed 18/1111:30 -

2 stops24h 01m

Deal found 3/10$2,158

Fri 20/1120:45 -

1 stop29h 05m

Fri 27/1123:40 -

1 stop31h 10m

Deal found 6/10$2,230

Wed 17/321:45 -

2 stops33h 35m

Tue 30/316:50 -

1 stop38h 10m

Deal found 3/10$1,860

Thu 5/1115:55 -

2 stops26h 25m

Sun 15/1114:05 -

1 stop24h 50m

Deal found 6/10$2,015

Sun 28/321:55 -

2 stops32h 25m

Sun 4/415:50 -

1 stop37h 15m

Deal found 2/10$1,862

Sun 8/1116:05 -

1 stop22h 20m

Wed 18/1111:05 -

2 stops25h 09m

Deal found 2/10$2,057

Tue 16/209:30 -

3 stops33h 25m

Tue 23/208:15 -

2 stops39h 30m

Deal found 3/10$2,153

Wed 17/220:45 -

1 stop29h 05m

Fri 26/219:55 -

2 stops34h 55m

Deal found 3/10$1,979

Mon 9/1120:45 -

1 stop34h 35m

Fri 13/1123:40 -

1 stop31h 10m

Deal found 4/10$2,008

Thu 19/1109:45 -

3 stops35h 55m

Thu 26/1118:20 -

3 stops56h 17m

Deal found 4/10$2,785

Sun 28/310:10 -

3 stops33h 30m

Sun 4/411:55 -

3 stops36h 32m

Deal found 2/10$2,590

Tue 22/1215:45 -

1 stop25h 15m

Wed 13/114:05 -

1 stop21h 00m

Deal found 4/10$3,004

Sun 28/321:55 -

2 stops33h 30m

Thu 1/412:05 -

2 stops41h 00m

Deal found 6/10$2,295

Wed 4/1109:45 -

3 stops31h 10m

Wed 18/1108:15 -

3 stops30h 57m

Deal found 6/10$2,644

Sun 28/309:15 -

3 stops35h 25m

Thu 1/406:00 -

3 stops30h 53m

Deal found 6/10$3,870

Fri 19/321:45 -

2 stops32h 45m

Mon 22/320:10 -

2 stops57h 40m

Deal found 5/10$2,458

Mon 9/1120:45 -

1 stop42h 05m

Thu 12/1115:50 -

1 stop39h 00m

Deal found 5/10$2,616

Fri 26/310:05 -

3 stops31h 40m

Sun 4/411:55 -

3 stops36h 32m

Deal found 2/10$3,208

Wed 25/1120:45 -

2 stops33h 40m

Sun 29/1115:50 -

1 stop39h 00m

Deal found 2/10$2,713

Find flight deals from Philadelphia to Australia

Round-trip from	$1,713
One-way from	$934
Popular in	January
Cheapest in	February
Average price	$2,174

Qatar Airways
1/3-15/3
2 total stops
67h 45m total
Philadelphia to Australia

Search Deals

8/2-31/12
2 total stops
51h 13m 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 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

Mon 25/1

14:18-09:30

2 stops51h 12m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,152

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sat 27/3

20:14-17:40

3 stops54h 26m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,181

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Tue 23/3

07:00-10:50

3 stops36h 50m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,184

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Thu 25/3

07:00-15:35

3 stops41h 35m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,184

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Thu 5/11

13:47-23:05

2 stops41h 18m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,211

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 21/1

10:41-06:35

2 stops51h 54m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,271

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Fri 30/10

05:43-13:00

2 stops40h 17m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,307

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Tue 23/3

21:45-17:50

1 stop29h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,309

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 4/1

08:40-20:50

2 stops44h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,601

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 24/12

18:30-19:45

2 stops33h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,657

Flights are sorted by cheapest return flights first.

Deals found on 4/10

Showing 1-10 of 44 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 $1,582). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,566). 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

1,103 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

1,103 reviews

Qantas Airways

7.5

Good

1,103 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 33h 35m. Your travel time can differ by up to 10h 20m. 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 $1,582). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,566). 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

Top airline flying from Philadelphia to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,965	Average$1,999	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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Not ready to book yet? You can track prices for flights from Philadelphia to Australia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Philadelphia to Australia from $934

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. 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 7 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 7 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 7 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 7 October 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 7 October 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 7 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 7 October 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 7 October 2026.

Find flight deals from Philadelphia to Australia

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One-way 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

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.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Philadelphia to Australia by cabin class

Find flights from Philadelphia to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Philadelphia and Australia flights

Browse other Philadelphia and Australia flight options. Last updated on 7 October 2026.

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Check out other popular destinations found by fellow travellers in 2026

Philadelphia to Australia flights

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

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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 7 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 7 October 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 7 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 7 October 2026.