How long is the flight from Philadelphia to Australia?

United Airlines, Qantas Airways, and Air Canada can get you from Philadelphia to Australia in just under 22h 20m. Your travel time can differ by up to 13h. 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 20 October 2026.

Sun 8/1117:05 -

2 stops48h 30m

Wed 18/1111:20 -

2 stops27h 26m

Deal found 20/10$1,665

Sat 24/1010:05 -

2 stops31h 30m

Sat 7/1111:20 -

2 stops27h 26m

Deal found 20/10$1,685

Mon 26/1009:15 -

2 stops32h 20m

Tue 10/1111:20 -

2 stops27h 26m

Deal found 19/10$1,715

Mon 26/1017:05 -

3 stops52h 30m

Tue 3/1108:00 -

3 stops48h 21m

Deal found 19/10$1,727

Thu 5/1115:20 -

2 stops26h 15m

Sun 15/1111:20 -

2 stops43h 19m

Deal found 20/10$1,764

Mon 26/1017:30 -

1 stop24h 30m

Tue 10/1111:10 -

1 stop22h 39m

Deal found 19/10$1,765

Tue 1/1216:00 -

1 stop25h 00m

Tue 8/1211:10 -

1 stop22h 45m

Deal found 18/10$1,770

Tue 20/1013:24 -

2 stops27h 41m

Tue 27/1009:45 -

2 stops42h 59m

Deal found 19/10$1,778

Tue 20/1015:57 -

1 stop23h 03m

Tue 27/1013:10 -

1 stop21h 28m

Deal found 19/10$1,785

Mon 26/1017:30 -

1 stop25h 00m

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1 stop24h 21m

Deal found 19/10$1,788

Sun 8/1113:47 -

1 stop24h 38m

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1 stop25h 04m

Deal found 20/10$1,798

Thu 12/1117:05 -

2 stops24h 40m

Thu 19/1110:45 -

2 stops27h 01m

Deal found 15/10$1,808

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 20 October 2026.

Mon 1/318:13 -

1 stop24h 17m

Mon 29/311:55 -

2 stops39h 30m

Deal found 19/10$1,838

Wed 17/216:05 -

1 stop22h 20m

Wed 24/207:20 -

2 stops26h 20m

Deal found 19/10$1,856

Mon 9/1106:15 -

3 stops35h 20m

Thu 12/1111:20 -

2 stops43h 19m

Deal found 19/10$1,899

Thu 12/1116:46 -

1 stop22h 44m

Thu 19/1113:10 -

1 stop25h 11m

Deal found 15/10$1,995

Sat 10/421:30 -

1 stop29h 35m

Sat 24/416:45 -

2 stops36h 20m

Deal found 15/10$2,050

Tue 23/214:12 -

2 stops24h 38m

Fri 19/309:40 -

2 stops35h 01m

Deal found 18/10$2,222

Tue 1/1213:47 -

1 stop27h 43m

Tue 8/1211:00 -

2 stops24h 00m

Deal found 17/10$2,492

Mon 2/1108:00 -

2 stops34h 45m

Fri 6/1110:55 -

2 stops26h 54m

Deal found 17/10$2,588

Mon 1/318:13 -

1 stop24h 17m

Mon 15/311:45 -

2 stops28h 14m

Deal found 19/10$1,838

Mon 1/308:10 -

2 stops34h 45m

Mon 15/310:20 -

3 stops40h 59m

Deal found 19/10$2,081

Tue 1/1209:45 -

3 stops36h 35m

Tue 8/1211:20 -

2 stops27h 21m

Deal found 17/10$1,893

Thu 3/1212:34 -

1 stop26h 21m

Sun 13/1211:10 -

1 stop22h 45m

Deal found 20/10$2,146

Tue 1/1210:35 -

2 stops29h 25m

Tue 8/1210:10 -

2 stops24h 09m

Deal found 17/10$2,294

Mon 1/209:55 -

2 stops31h 25m

Sun 7/209:20 -

1 stop29h 39m

Deal found 20/10$1,897

Mon 2/1112:40 -

2 stops28h 15m

Wed 11/1108:15 -

3 stops41h 37m

Deal found 16/10$2,088

Sun 28/309:15 -

3 stops35h 25m

Thu 1/406:00 -

3 stops48h 18m

Deal found 17/10$2,308

Sun 28/316:00 -

2 stops37h 25m

Thu 1/414:50 -

2 stops44h 28m

Deal found 19/10$2,151

Sun 28/321:55 -

2 stops33h 30m

Thu 1/412:05 -

2 stops41h 00m

Deal found 17/10$2,440

Wed 23/1218:10 -

1 stop22h 20m

Mon 11/111:20 -

2 stops41h 59m

Deal found 16/10$1,949

Thu 3/1212:38 -

2 stops27h 57m

Sun 13/1214:05 -

3 stops38h 09m

Deal found 20/10$2,194

Thu 3/1210:42 -

2 stops30h 58m

Thu 10/1206:00 -

2 stops26h 55m

Deal found 19/10$2,224

Sun 8/1109:45 -

3 stops36h 45m

Thu 12/1107:35 -

2 stops54h 22m

Deal found 19/10$1,960

Sat 10/417:40 -

2 stops25h 05m

Sat 24/411:55 -

3 stops38h 30m

Deal found 15/10$2,252

Tue 22/1216:58 -

2 stops47h 32m

Wed 13/111:20 -

1 stop21h 13m

Deal found 17/10$1,975

Fri 11/1209:45 -

3 stops32h 50m

Sat 16/111:50 -

3 stops40h 17m

Deal found 17/10$2,258

Sat 31/1009:45 -

2 stops30h 45m

Sat 7/1111:20 -

1 stop26h 29m

Deal found 15/10$2,000

Thu 3/1212:38 -

2 stops30h 17m

Thu 10/1212:10 -

3 stops40h 04m

Deal found 19/10$2,310

Fri 25/1213:01 -

2 stops27h 29m

Mon 11/111:20 -

1 stop35h 25m

Deal found 18/10$2,032

Sun 29/1106:00 -

2 stops40h 30m

Sun 6/1211:20 -

1 stop21h 01m

Deal found 15/10$2,066

Thu 3/1212:38 -

2 stops30h 07m

Thu 10/1210:55 -

3 stops40h 19m

Deal found 19/10$2,645

Find flight deals from Philadelphia to Australia

Round-trip from	$1,570
One-way from	$934
Popular in	January
Cheapest in	February
Average price	$2,288

Air Canada
10/3-24/3
4 total stops
69h 37m 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, 1% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($40 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

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 15/3

09:07-05:50

3 stops54h 43m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,161

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sun 15/11

06:00-07:30

3 stops57h 30m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,192

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Fri 25/12

07:10-06:25

2 stops31h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,196

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 26/10

10:30-13:00

2 stops35h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,225

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Fri 25/12

07:10-09:10

3 stops35h 00m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,248

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

$1,274

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 10/12

17:40-18:50

3 stops57h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,325

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Fri 11/12

08:40-12:25

3 stops35h 45m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,334

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 15/3

21:45-17:30

1 stop29h 45m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,494

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 23/12

20:19-06:25

2 stops42h 06m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,513

Flights are sorted by cheapest return flights first.

Deals found on 17/10

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-MEL

PHL-SYD

PHL-BNE

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-MEL

PHL-SYD

PHL-BNE

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 $1,635). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,599). 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 33 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

1,114 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

1,114 reviews

Qantas Airways

7.5

Good

1,114 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?
United Airlines, Qantas Airways, and Air Canada can get you from Philadelphia to Australia in just under 22h 20m. Your travel time can differ by up to 13h. 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 $1,635). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,599). 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

Browse thousands of different options on Cheapflights for your next trip

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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$1,964	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 20 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 20 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 20 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 20 October 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 20 October 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 20 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 20 October 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 20 October 2026.

Find flight deals from Philadelphia to Australia

Round-trip from

One-way from

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Cheapest in

Average price

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 33 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 20 October 2026.

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Check out other popular destinations found by fellow travellers in 2026

Philadelphia to Australia flights

Consider these flights travelling from Philadelphia to Australia.

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Can Cheapflights find flights from Philadelphia to Australia with no change fees?

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 20 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 20 October 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 20 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 20 October 2026.