How long is the flight from Philadelphia to Australia?

Qantas Airways, United Airlines, and Delta can get you from Philadelphia to Australia in just under 27h 13m. Your travel time can differ by up to 7h 13m. 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 - Brisbane.

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.

$982+ 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 25 October 2026.

Wed 23/1215:20 -

2 stops50h 25m

Sat 16/110:45 -

2 stops42h 59m

Deal found 21/10$1,544

Wed 23/1215:20 -

2 stops50h 25m

Thu 14/110:45 -

2 stops44h 36m

Deal found 21/10$1,551

Sat 24/1010:05 -

2 stops55h 40m

Sun 1/1110:45 -

2 stops43h 00m

Deal found 22/10$1,605

Mon 26/1015:20 -

2 stops50h 15m

Mon 2/1111:20 -

2 stops43h 19m

Deal found 21/10$1,608

Sat 24/1010:05 -

2 stops31h 40m

Tue 3/1110:45 -

2 stops42h 54m

Deal found 22/10$1,609

Sun 22/1115:20 -

3 stops50h 15m

Sun 16/509:20 -

2 stops43h 16m

Deal found 21/10$1,651

Tue 1/1209:15 -

2 stops29h 40m

Tue 8/1211:20 -

2 stops27h 26m

Deal found 21/10$1,652

Sun 8/1109:15 -

2 stops32h 20m

Wed 18/1111:20 -

3 stops43h 19m

Deal found 21/10$1,656

Sat 24/1010:05 -

2 stops31h 30m

Sat 7/1111:20 -

2 stops27h 26m

Deal found 22/10$1,672

Sat 24/1013:24 -

2 stops28h 11m

Sat 7/1111:20 -

2 stops27h 26m

Deal found 21/10$1,673

Sun 8/1109:15 -

2 stops32h 20m

Thu 12/1111:20 -

2 stops43h 19m

Deal found 23/10$1,698

Sat 24/1010:05 -

2 stops31h 40m

Sun 1/1106:10 -

3 stops31h 36m

Deal found 21/10$1,723

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 25 October 2026.

Sun 8/1113:47 -

1 stop24h 38m

Wed 18/1111:10 -

1 stop25h 04m

Deal found 21/10$1,803

Sun 8/1113:47 -

1 stop27h 13m

Wed 18/1111:10 -

1 stop25h 04m

Deal found 25/10$1,803

Sun 8/1109:45 -

2 stops31h 35m

Wed 18/1109:15 -

1 stop25h 26m

Deal found 21/10$1,810

Mon 7/1205:34 -

2 stops34h 26m

Mon 14/1210:10 -

2 stops35h 45m

Deal found 23/10$1,817

Sat 5/1215:20 -

2 stops26h 15m

Sat 29/509:20 -

2 stops43h 16m

Deal found 25/10$1,852

Wed 24/321:45 -

2 stops32h 40m

Sun 4/420:55 -

2 stops39h 36m

Deal found 24/10$2,232

Mon 1/318:13 -

1 stop24h 17m

Mon 15/311:45 -

2 stops28h 14m

Deal found 20/10$1,823

Sat 13/319:45 -

1 stop43h 15m

Mon 22/309:15 -

2 stops27h 23m

Deal found 20/10$1,828

Sun 8/1113:47 -

1 stop25h 03m

Thu 12/1119:50 -

2 stops36h 59m

Deal found 21/10$2,127

Fri 11/1209:45 -

3 stops32h 50m

Sat 16/111:50 -

3 stops40h 17m

Deal found 23/10$2,242

Sun 6/1218:30 -

1 stop22h 00m

Sun 13/1211:20 -

1 stop21h 01m

Deal found 21/10$1,896

Sun 28/316:00 -

2 stops40h 20m

Thu 1/414:50 -

2 stops44h 28m

Deal found 20/10$2,132

Sun 28/309:15 -

3 stops35h 25m

Thu 1/406:00 -

3 stops30h 43m

Deal found 22/10$2,473

Sun 13/1212:38 -

2 stops29h 57m

Mon 18/111:50 -

3 stops40h 14m

Deal found 22/10$2,284

Sun 8/1109:45 -

3 stops36h 45m

Thu 12/1107:35 -

2 stops50h 09m

Deal found 21/10$1,945

Fri 4/1208:00 -

2 stops32h 55m

Fri 11/1212:10 -

3 stops41h 44m

Deal found 21/10$2,291

Thu 25/313:00 -

2 stops28h 05m

Sun 4/410:20 -

1 stop35h 25m

Deal found 24/10$1,972

Fri 26/310:05 -

2 stops32h 15m

Sun 4/410:20 -

1 stop35h 25m

Deal found 24/10$1,972

Thu 14/116:55 -

2 stops47h 35m

Sat 6/211:20 -

1 stop20h 48m

Deal found 20/10$2,087

Sun 10/106:24 -

2 stops34h 06m

Sun 14/209:05 -

2 stops52h 29m

Deal found 22/10$2,092

Sat 16/109:00 -

2 stops33h 55m

Sat 23/112:10 -

3 stops39h 57m

Deal found 23/10$3,252

Thu 24/1206:24 -

2 stops34h 06m

Mon 11/111:20 -

2 stops39h 44m

Deal found 25/10$2,146

Thu 14/116:55 -

2 stops47h 35m

Mon 25/111:20 -

1 stop20h 48m

Deal found 21/10$2,161

Thu 25/313:00 -

2 stops28h 05m

Thu 8/410:20 -

1 stop25h 00m

Deal found 23/10$2,166

Mon 25/109:55 -

3 stops33h 10m

Thu 22/710:55 -

2 stops25h 35m

Deal found 23/10$2,244

Sat 21/1109:45 -

2 stops29h 15m

Sat 28/1109:10 -

2 stops40h 39m

Deal found 24/10$2,289

Sun 22/1118:21 -

1 stop24h 09m

Sun 29/1111:30 -

2 stops38h 22m

Deal found 25/10$2,352

Sat 21/1112:40 -

2 stops29h 55m

Sat 28/1106:00 -

2 stops32h 57m

Deal found 24/10$2,469

Wed 23/1218:10 -

1 stop24h 20m

Fri 1/111:30 -

2 stops26h 11m

Deal found 24/10$3,644

Fri 25/1209:00 -

2 stops56h 40m

Sat 9/119:30 -

2 stops36h 38m

Deal found 25/10$3,823

Find flight deals from Philadelphia to Australia

Round-trip from	$1,544
One-way from	$982
Popular in	January
Cheapest in	February
Average price	$2,269

Air Canada
23/12-16/1
4 total stops
93h 24m total
Philadelphia to Australia

Search Deals

1/2-31/12
2 total stops
44h 11m 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 ($39 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

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 1/12

21:58-06:25

3 stops40h 27m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,021

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

$1,098

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 31/3

07:00-06:30

2 stops32h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,132

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 1/4

06:15-06:30

2 stops33h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,165

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 2/11

16:46-23:05

2 stops38h 19m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,200

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 5/11

15:14-20:50

2 stops37h 36m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,210

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 25/3

10:42-20:50

2 stops43h 08m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,232

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 23/3

08:10-07:15

2 stops56h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,252

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Fri 6/11

15:55-13:00

2 stops53h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,340

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

$1,357

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 54 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-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-SYD

PHL-MEL

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 $1,554). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,577). 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

1,118 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

1,118 reviews

Qantas Airways

7.5

Good

1,118 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, United Airlines, and Delta can get you from Philadelphia to Australia in just under 27h 13m. Your travel time can differ by up to 7h 13m. 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 - Brisbane.
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 $1,554). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,577). 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$1,947	Average$1,981	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 $982

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/1. 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 25 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 25 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 25 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 25 October 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 25 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 25 October 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Find flight deals from Philadelphia to Australia

Round-trip from

One-way from

Popular in

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 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 25 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 25 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 25 October 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 25 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 25 October 2026.