How long is the flight from Philadelphia to Australia?

United Airlines, Qatar Airways, and Air New Zealand can get you from Philadelphia to Australia in just under 30h 45m. Your travel time can differ by up to 10h 15m. 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.

$1,119+ 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 3 November 2026.

Wed 2/1215:55 -

1 stop22h 55m

Wed 9/1209:40 -

1 stop24h 20m

Deal found 2/11$1,835

Wed 2/1213:52 -

2 stops24h 58m

Wed 9/1209:40 -

2 stops23h 15m

Deal found 2/11$1,848

Wed 9/1209:20 -

1 stop31h 10m

Wed 23/1211:20 -

1 stop20h 46m

Deal found 2/11$1,849

Mon 16/1112:09 -

2 stops29h 21m

Wed 2/1210:40 -

2 stops22h 46m

Deal found 2/11$1,850

Mon 30/1118:21 -

1 stop22h 09m

Tue 15/1211:20 -

2 stops22h 42m

Deal found 2/11$1,855

Mon 14/1215:55 -

2 stops26h 25m

Mon 21/1214:05 -

1 stop23h 08m

Deal found 30/10$1,863

Tue 17/1117:17 -

2 stops48h 13m

Wed 2/1210:40 -

2 stops25h 48m

Deal found 2/11$1,876

Wed 2/1213:50 -

1 stop25h 00m

Wed 16/1207:40 -

2 stops26h 20m

Deal found 2/11$1,877

Wed 2/1214:46 -

1 stop24h 09m

Wed 16/1210:25 -

2 stops26h 10m

Deal found 2/11$1,877

Wed 18/1109:45 -

2 stops30h 45m

Tue 1/1205:05 -

2 stops32h 51m

Deal found 3/11$1,882

Wed 2/1209:20 -

1 stop31h 10m

Mon 14/1206:05 -

3 stops45h 08m

Deal found 2/11$1,903

Thu 24/1213:54 -

2 stops24h 56m

Wed 13/113:10 -

2 stops23h 21m

Deal found 1/11$1,909

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 3 November 2026.

Wed 18/1109:45 -

2 stops30h 45m

Mon 30/1109:05 -

2 stops46h 25m

Deal found 3/11$1,882

Wed 18/1116:38 -

1 stop23h 52m

Tue 1/1205:05 -

2 stops32h 51m

Deal found 3/11$1,882

Mon 18/120:45 -

1 stop41h 00m

Mon 15/218:30 -

2 stops36h 20m

Deal found 30/10$2,057

Fri 19/306:10 -

2 stops37h 35m

Mon 22/310:55 -

2 stops39h 24m

Deal found 29/10$2,282

Sat 21/1110:32 -

2 stops29h 58m

Sat 28/1110:40 -

2 stops27h 33m

Deal found 2/11$2,285

Mon 28/1215:36 -

1 stop25h 24m

Wed 13/111:05 -

2 stops25h 31m

Deal found 31/10$2,801

Wed 2/1209:45 -

2 stops30h 45m

Wed 9/1206:05 -

3 stops45h 08m

Deal found 2/11$1,903

Sun 28/309:15 -

3 stops35h 25m

Thu 1/406:00 -

3 stops30h 43m

Deal found 29/10$4,244

Mon 18/115:47 -

3 stops46h 53m

Mon 15/216:35 -

2 stops37h 15m

Deal found 30/10$4,374

Thu 19/1113:16 -

3 stops51h 14m

Tue 1/1205:05 -

2 stops32h 51m

Deal found 3/11$2,190

Sun 13/1210:53 -

2 stops29h 37m

Fri 22/111:20 -

2 stops25h 20m

Deal found 1/11$2,012

Thu 25/305:30 -

2 stops34h 50m

Thu 8/409:15 -

2 stops34h 26m

Deal found 1/11$2,285

Mon 18/118:14 -

1 stop22h 16m

Mon 8/211:20 -

1 stop20h 48m

Deal found 30/10$2,013

Fri 19/306:10 -

2 stops37h 35m

Mon 22/310:55 -

3 stops39h 24m

Deal found 29/10$2,220

Sun 28/321:55 -

2 stops33h 30m

Thu 1/412:05 -

2 stops41h 00m

Deal found 29/10$2,468

Sat 12/1209:45 -

3 stops56h 35m

Sat 23/111:20 -

2 stops41h 59m

Deal found 1/11$2,030

Wed 3/220:45 -

1 stop29h 45m

Sun 7/215:10 -

1 stop38h 40m

Deal found 1/11$2,475

Tue 23/310:05 -

3 stops31h 30m

Sat 3/411:55 -

3 stops39h 30m

Deal found 29/10$2,374

Tue 15/1206:24 -

2 stops34h 06m

Wed 20/111:20 -

2 stops25h 20m

Deal found 30/10$2,083

Wed 20/109:00 -

2 stops33h 35m

Wed 10/214:05 -

3 stops36h 05m

Deal found 30/10$2,577

Mon 1/309:39 -

3 stops31h 51m

Mon 15/311:45 -

2 stops26h 16m

Deal found 2/11$2,148

Wed 14/410:10 -

3 stops32h 35m

Thu 6/511:55 -

3 stops36h 32m

Deal found 31/10$2,622

Sun 29/1106:00 -

1 stop36h 30m

Sun 6/1211:30 -

2 stops24h 01m

Deal found 31/10$2,240

Tue 19/109:00 -

2 stops33h 55m

Mon 8/210:20 -

3 stops41h 44m

Deal found 30/10$2,763

Mon 18/108:00 -

2 stops34h 55m

Mon 8/212:10 -

3 stops39h 54m

Deal found 30/10$2,834

Thu 17/1208:00 -

2 stops32h 30m

Thu 24/1211:20 -

1 stop20h 46m

Deal found 2/11$2,682

Thu 25/310:05 -

3 stops31h 30m

Thu 8/409:55 -

3 stops40h 30m

Deal found 1/11$2,857

Tue 1/1215:35 -

2 stops26h 55m

Mon 21/1212:45 -

2 stops24h 56m

Deal found 1/11$2,806

Thu 10/1209:45 -

3 stops30h 50m

Sat 16/109:55 -

3 stops42h 12m

Deal found 30/10$2,864

Wed 2/1215:35 -

2 stops26h 55m

Mon 21/1212:45 -

2 stops26h 14m

Deal found 1/11$2,806

Find flight deals from Philadelphia to Australia

Round-trip from	$1,768
One-way from	$1,119
Popular in	April
Cheapest in	March
Average price	$2,086

JetBlue
4/4-25/4
2 total stops
63h 20m total
Philadelphia to Australia

Search Deals

10/11-31/12
2 total stops
32h 25m total
Philadelphia to Australia

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($91 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($105 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 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

Thu 12/11

06:00-06:25

2 stops32h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,162

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 8/4

10:46-11:45

2 stops34h 59m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,215

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sun 15/11

08:30-05:50

2 stops30h 20m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,217

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 15/11

10:15-06:25

2 stops28h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,240

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

$1,269

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Fri 13/11

10:30-20:50

2 stops42h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,300

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

$1,320

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 13/12

08:40-19:55

3 stops43h 15m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,323

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sat 21/11

20:38-05:50

2 stops42h 12m

Brisbane

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,359

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

$1,423

Flights are sorted by cheapest return flights first.

Deals found on 31/10

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-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 $1,798). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,897). 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

1,122 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

1,122 reviews

Qantas Airways

7.5

Good

1,122 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?
United Airlines, Qatar Airways, and Air New Zealand can get you from Philadelphia to Australia in just under 30h 45m. Your travel time can differ by up to 10h 15m. 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 $1,798). Flying from Philadelphia to Australia in April is currently the most expensive (average of $2,897). 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

Alternative routes

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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$1,954	Average$1,988	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

Fly with Cheapflights

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 $1,119

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. 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 3 November 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 3 November 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 3 November 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 3 November 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 3 November 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 3 November 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Find flight deals from Philadelphia to Australia

Round-trip from

One-way from

Popular in

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 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

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 3 November 2026.

Popular flight searches

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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Consider these flights travelling to Australia regions.

Top airline flying from Philadelphia to Australia

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How does Cheapflights help users find flights 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 3 November 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 3 November 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 3 November 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 3 November 2026.