How long is the flight from Philadelphia to Australia?

Air Canada, Qatar Airways, and United Airlines can get you from Philadelphia to Australia in just under 26h 15m. Your travel time can differ by up to 2h 50m. 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.

$838+ 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 22 September 2026.

Sun 1/1115:20 -

2 stops26h 15m

Tue 10/1111:20 -

2 stops43h 24m

Deal found 17/9$1,652

Sun 8/1117:05 -

2 stops48h 30m

Wed 18/1111:20 -

2 stops43h 24m

Deal found 18/9$1,657

Wed 4/1120:45 -

1 stop34h 35m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 20/9$1,695

Thu 5/1115:20 -

2 stops26h 15m

Sun 15/1111:20 -

2 stops43h 24m

Deal found 18/9$1,704

Mon 2/1117:05 -

3 stops52h 30m

Wed 11/1108:00 -

3 stops48h 21m

Deal found 18/9$1,723

Mon 2/1115:20 -

2 stops26h 15m

Tue 10/1111:20 -

2 stops43h 24m

Deal found 21/9$1,727

Sat 7/1117:05 -

2 stops48h 30m

Sat 21/1111:20 -

2 stops43h 24m

Deal found 18/9$1,732

Mon 2/1120:45 -

1 stop29h 05m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 21/9$1,737

Fri 6/1120:45 -

1 stop34h 35m

Thu 19/1117:10 -

1 stop37h 40m

Deal found 21/9$1,755

Mon 2/1120:45 -

1 stop34h 35m

Wed 11/1123:40 -

1 stop31h 10m

Deal found 19/9$1,764

Tue 6/1021:30 -

1 stop34h 35m

Tue 13/1023:45 -

1 stop29h 45m

Deal found 18/9$1,774

Sun 1/1120:45 -

1 stop29h 05m

Sun 8/1123:40 -

1 stop31h 10m

Deal found 18/9$1,788

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 22 September 2026.

Sun 1/1115:20 -

2 stops26h 15m

Tue 10/1111:20 -

2 stops43h 24m

Deal found 17/9$1,652

Mon 1/217:05 -

2 stops52h 30m

Sat 27/208:00 -

2 stops30h 56m

Deal found 17/9$1,737

Mon 1/220:45 -

1 stop41h 00m

Sat 27/216:10 -

1 stop38h 40m

Deal found 17/9$1,761

Sun 8/1116:05 -

1 stop22h 20m

Wed 18/1111:05 -

2 stops25h 09m

Deal found 21/9$1,793

Sun 21/309:30 -

1 stop33h 00m

Tue 6/406:00 -

2 stops24h 58m

Deal found 20/9$2,068

Tue 26/120:45 -

1 stop30h 35m

Fri 12/222:10 -

1 stop32h 40m

Deal found 19/9$1,785

Mon 26/1018:40 -

2 stops25h 25m

Mon 9/1114:05 -

1 stop20h 53m

Deal found 21/9$1,892

Wed 17/220:45 -

2 stops33h 35m

Wed 24/215:50 -

1 stop39h 00m

Deal found 18/9$1,826

Sat 24/1015:30 -

1 stop24h 25m

Sat 7/1111:05 -

2 stops25h 09m

Deal found 18/9$2,039

Tue 26/113:16 -

2 stops25h 04m

Fri 12/213:20 -

2 stops25h 48m

Deal found 19/9$2,106

Wed 10/220:45 -

2 stops33h 35m

Thu 25/215:50 -

1 stop39h 00m

Deal found 18/9$1,826

Mon 2/1108:00 -

2 stops32h 55m

Wed 11/1112:10 -

3 stops37h 42m

Deal found 21/9$2,049

Mon 1/209:45 -

3 stops31h 45m

Sat 27/211:30 -

2 stops23h 10m

Deal found 17/9$2,132

Mon 2/1120:45 -

1 stop34h 35m

Wed 11/1118:20 -

2 stops36h 30m

Deal found 18/9$1,942

Fri 6/1120:45 -

2 stops57h 45m

Fri 13/1118:40 -

2 stops35h 10m

Deal found 21/9$2,148

Thu 5/1113:16 -

3 stops29h 14m

Thu 12/1112:45 -

2 stops26h 12m

Deal found 21/9$2,200

Mon 9/1120:45 -

1 stop34h 35m

Fri 13/1123:40 -

1 stop31h 10m

Deal found 18/9$1,969

Sun 1/1118:21 -

2 stops27h 19m

Sun 8/1107:20 -

2 stops50h 21m

Deal found 17/9$2,251

Thu 18/321:45 -

1 stop29h 05m

Fri 2/417:10 -

1 stop36h 55m

Deal found 20/9$1,988

Fri 6/1118:46 -

3 stops47h 54m

Fri 13/1118:20 -

2 stops43h 37m

Deal found 21/9$2,414

Thu 24/1212:40 -

3 stops33h 40m

Mon 11/119:30 -

2 stops36h 28m

Deal found 21/9$3,153

Fri 19/321:45 -

2 stops32h 45m

Mon 22/320:10 -

2 stops57h 40m

Deal found 18/9$2,439

Fri 19/306:10 -

2 stops37h 35m

Mon 22/310:55 -

3 stops39h 30m

Deal found 18/9$3,327

Thu 24/1209:00 -

2 stops37h 20m

Mon 11/109:20 -

2 stops46h 36m

Deal found 21/9$3,160

Thu 19/1112:40 -

2 stops30h 05m

Mon 23/1110:55 -

3 stops37h 57m

Deal found 17/9$3,333

Find flight deals from Philadelphia to Australia

Round-trip from	$1,650
One-way from	$838
Popular in	January
Cheapest in	February
Average price	$1,949

Air Canada
17/2-24/2
4 total stops
69h 39m total
Philadelphia to Australia

Search Deals

20/10-31/12
2 total stops
34h 40m 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 ($42 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 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

Wed 17/3

07:00-09:30

2 stops35h 30m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,024

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 6/12

08:34-19:45

3 stops43h 11m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,197

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 4/10

07:00-12:45

2 stops38h 45m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,281

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 17/3

21:45-23:20

1 stop34h 35m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,298

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 3/10

22:09-09:00

2 stops43h 51m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,443

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 12/10

17:30-09:00

2 stops48h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,443

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 2/1

14:55-17:45

3 stops58h 50m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,445

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sun 27/12

11:25-09:30

2 stops30h 05m

Melbourne

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,465

PhiladelphiaTownsville

PHL Philadelphia - TSV Townsville

PHLTSV

Philadelphia

Wed 14/10

21:30-21:45

2 stops34h 15m

Townsville

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,490

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 1/11

15:20-09:35

2 stops26h 15m

Sydney Kingsford Smith

Tue 10/11

11:20-14:44

2 stops43h 24m

$1,652

Flights are sorted by cheapest return flights first.

Deals found on 20/9

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-SYD

PHL-MEL

PHL-TSV

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-TSV

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 $1,601). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,512). 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

1,101 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Robyn,Aug 2026

LAX - SYD

I was flabbergasted when the crew completely missed me in the distribution of food and drinks in Business Class - even after they looked twice at my opened table. However - this has happened to me on my last longhaul QF flight and with the same hosty (older woman with curly bob). She obviously cannot handly the stress of initial boarding as both times she has come back to me with an apology. When compared to our usual Business/ First longhauls with Qatar or Emirates, Qantas leave ALOT to be desired. I would highly recommend going with another airline. BTW I'm a 4th gen Aussie and previous Qantas employee - I would love to love them if they provided service but they just dont.

Qantas Airways

7.5

Good

1,101 reviews

Qantas Airways

7.5

Good

1,101 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Robyn,Aug 2026

LAX - SYD

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?
Air Canada, Qatar Airways, and United Airlines can get you from Philadelphia to Australia in just under 26h 15m. Your travel time can differ by up to 2h 50m. 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 $1,601). Flying from Philadelphia to Australia in July is currently the most expensive (average of $2,512). 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.

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Top airline flying from Philadelphia to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,924	Average$1,957	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights

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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 $838

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. 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 22 September 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 22 September 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 22 September 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 22 September 2026.

Last-minute flights from Philadelphia to AustraliaDiscover last-minute flight deals from Philadelphia to Australia. Data last updated 22 September 2026 and is based on user searches.

Discover last-minute flight deals from Philadelphia to Australia. Data last updated 22 September 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 22 September 2026.

Search for one-way flight options from Philadelphia to Australia. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.

Find flight deals from Philadelphia to Australia

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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 22 September 2026.

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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 22 September 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 22 September 2026.

Last-minute flights from Philadelphia to Australia
Discover last-minute flight deals from Philadelphia to Australia. Data last updated 22 September 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 22 September 2026.