What is the cheapest airline that flies from Philadelphia to Australia?

Cathay Pacific, Qatar Airways, and United Airlines are the most popular carriers operating from Philadelphia to Australia

Which airlines fly to Australia?

Qantas Airways, United Airlines and Air Canada are the top three most popular airlines that fly to Australia from Philadelphia according to our data. Qantas Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 3 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Australia?

Prices for flights from Philadelphia Airport to Australia refresh daily.

How old do you have to be to fly from Philadelphia Airport to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Australia.

What documentation or ID do you need to fly to Australia?

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$856 Cheap Flights from Philadelphia to Australia in 2026

Find the cheapest flights from Philadelphia to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:25 - 07:05PHL Philadelphia-BNE Brisbane

25h 40m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:15 - 14:47BNE Brisbane-PHL Philadelphia

42h 32m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,665Air Canada

Tue, 15 Sep - Tue, 22 Sep

10:05 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

09:20 - 21:32SYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,677Air Canada

Tue, 15 Sep - Wed, 30 Sep

15:20 - 08:45PHL Philadelphia-BNE Brisbane

26h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:45 - 14:44BNE Brisbane-PHL Philadelphia

42h 59m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,679Air Canada

Tue, 3 Nov - Wed, 11 Nov

10:05 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

09:20 - 21:32SYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,689Air Canada

Tue, 15 Sep - Wed, 30 Sep

21:30 - 15:00PHL Philadelphia-ADL Adelaide

28h 00m1 stop Doha Hamad Intl

22:00 - 14:30ADL Adelaide-PHL Philadelphia

30h 00m1 stop Doha Hamad Intl

$1,694JetBlue

Thu, 10 Sep - Thu, 17 Sep

10:05 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

09:20 - 21:32SYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,694Air Canada

Tue, 15 Sep - Wed, 30 Sep

21:30 - 15:00PHL Philadelphia-ADL Adelaide

28h 00m1 stop Doha Hamad Intl

22:00 - 14:30ADL Adelaide-PHL Philadelphia

30h 00m1 stop Doha Hamad Intl

$1,697Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

10:05 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

09:20 - 21:32SYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,706Air Canada

Tue, 15 Sep - Wed, 30 Sep

21:30 - 23:20PHL Philadelphia-MEL Melbourne

34h 50m1 stop Doha Hamad Intl

23:40 - 14:40MEL Melbourne-PHL Philadelphia

31h 00m1 stop Doha Hamad Intl

$1,706Multiple Airlines

Tue, 27 Oct - Fri, 13 Nov

21:45 - 23:20PHL Philadelphia-MEL Melbourne

34h 35m1 stop Doha Hamad Intl

23:40 - 14:40MEL Melbourne-PHL Philadelphia

31h 00m1 stop Doha Hamad Intl

$1,708Multiple Airlines

Sun, 25 Oct - Mon, 2 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:05 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

09:20 - 14:40SYD Sydney Kingsford Smith-PHL Philadelphia

43h 20m2 stops Vancouver Intl Chicago O'Hare Intl

$2,144Air Canada

Sun, 16 Aug - Thu, 20 Aug

17:01 - 07:20PHL Philadelphia-SYD Sydney Kingsford Smith

48h 19m2 stops Chicago O'Hare Intl Vancouver Intl

09:20 - 21:34SYD Sydney Kingsford Smith-PHL Philadelphia

26h 14m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$2,215Air Canada

Fri, 14 Aug - Fri, 28 Aug

15:24 - 16:50PHL Philadelphia-SYD Sydney Kingsford Smith

35h 26m2 stops Atlanta Hartsfield-Jackson Abu Dhabi Zayed Intl

20:50 - 09:44SYD Sydney Kingsford Smith-PHL Philadelphia

50h 54m2 stops Abu Dhabi Zayed Intl Atlanta Hartsfield-Jackson

$2,406Multiple Airlines

Sat, 15 Aug - Mon, 17 Aug

13:06 - 10:40PHL Philadelphia-SYD Sydney Kingsford Smith

31h 34m2 stops Houston George Bush Intcntl Auckland Intl

10:20 - 17:30SYD Sydney Kingsford Smith-PHL Philadelphia

21h 10m1 stop San Francisco

$2,498Air New Zealand

Fri, 14 Aug - Fri, 28 Aug

12:54 - 07:05PHL Philadelphia-SYD Sydney Kingsford Smith

28h 11m2 stops Denver Intl Los Angeles Los Angeles

06:25 - 12:26SYD Sydney Kingsford Smith-PHL Philadelphia

44h 01m3 stops Melbourne Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$2,510Multiple Airlines

Fri, 14 Aug - Fri, 28 Aug

06:00 - 06:55PHL Philadelphia-SYD Sydney Kingsford Smith

34h 55m1 stop San Francisco

09:55 - 11:58SYD Sydney Kingsford Smith-PHL Philadelphia

40h 03m2 stops Auckland Intl Houston George Bush Intcntl

$2,582Air New Zealand

Sun, 16 Aug - Thu, 20 Aug

21:30 - 06:30PHL Philadelphia-SYD Sydney Kingsford Smith

43h 00m1 stop Doha Hamad Intl

14:50 - 14:30SYD Sydney Kingsford Smith-PHL Philadelphia

37h 40m1 stop Doha Hamad Intl

$3,054Qatar Airways

Sun, 16 Aug - Thu, 20 Aug

11:06 - 15:05PHL Philadelphia-OOL Coolangatta Gold Coast

37h 59m3 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles Sydney Kingsford Smith

18:00 - 12:26OOL Coolangatta Gold Coast-PHL Philadelphia

56h 26m3 stops Sydney Kingsford Smith Los Angeles Los Angeles Atlanta Hartsfield-Jackson

$3,178Multiple Airlines

Fri, 14 Aug - Mon, 17 Aug

06:25 - 09:25PHL Philadelphia-SYD Sydney Kingsford Smith

37h 00m2 stops Chicago O'Hare Intl Tokyo Haneda

17:50 - 07:04SYD Sydney Kingsford Smith-PHL Philadelphia

27h 14m1 stop Los Angeles Los Angeles

$3,197Multiple Airlines

Sat, 15 Aug - Mon, 17 Aug

21:30 - 17:10PHL Philadelphia-SYD Sydney Kingsford Smith

29h 40m1 stop Doha Hamad Intl

20:45 - 14:30SYD Sydney Kingsford Smith-PHL Philadelphia

31h 45m1 stop Doha Hamad Intl

$3,558Qatar Airways

Fri, 14 Aug - Fri, 28 Aug

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Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

Air Canada

15 Sept

PHL15:25Philadelphia

25h 40m

2 stops

BNE07:05Brisbane

22 Sept

BNE10:15Brisbane

42h 32m

2 stops

PHL14:47Philadelphia

$1,665

Air Canada

15 Sept

PHL10:05Philadelphia

31h 15m

2 stops

SYD07:20Sydney Kingsford Smith

30 Sept

SYD09:20Sydney Kingsford Smith

26h 12m

2 stops

PHL21:32Philadelphia

$1,677

Air Canada

3 Nov

PHL15:20Philadelphia

26h 25m

2 stops

BNE08:45Brisbane

11 Nov

BNE10:45Brisbane

42h 59m

2 stops

PHL14:44Philadelphia

$1,679

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets

Qantas Airways

3 Nov

PHL13:47Philadelphia

25h 03m

1 stop

BNE05:50Brisbane

11 Nov

BNE13:10Brisbane

22h 22m

1 stop

PHL20:32Philadelphia

$1,805

Qantas Airways

28 Oct

PHL16:00Philadelphia

23h 25m

1 stop

SYD06:25Sydney Kingsford Smith

11 Nov

SYD11:05Sydney Kingsford Smith

25h 27m

2 stops

PHL20:32Philadelphia

$1,806

Qantas Airways

8 Nov

PHL16:21Philadelphia

22h 34m

1 stop

SYD06:55Sydney Kingsford Smith

18 Nov

SYD11:05Sydney Kingsford Smith

25h 27m

2 stops

PHL20:32Philadelphia

$1,807

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 15/9

15:25-07:05

2 stops25h 40m

Brisbane

Tue 22/9

10:15-14:47

2 stops42h 32m

$1,665

Fastest return journey

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 15/9

10:05-07:20

2 stops31h 15m

Sydney Kingsford Smith

Wed 30/9

09:20-21:32

2 stops26h 12m

$1,677

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 3/11

15:20-08:45

2 stops26h 25m

Brisbane

Wed 11/11

10:45-14:44

2 stops42h 59m

$1,679

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 15/9

10:05-07:20

3 stops31h 15m

Sydney Kingsford Smith

Wed 30/9

09:20-21:32

2 stops26h 12m

$1,689

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 10/9

21:30-15:00

1 stop28h 00m

Adelaide

Thu 17/9

22:00-14:30

1 stop30h 00m

$1,694

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 15/9

10:05-07:20

2 stops31h 15m

Sydney Kingsford Smith

Wed 30/9

09:20-21:32

2 stops26h 12m

$1,694

PhiladelphiaAdelaide

PHL Philadelphia - ADL Adelaide

PHLADL

Philadelphia

Thu 10/9

21:30-15:00

1 stop28h 00m

Adelaide

Thu 17/9

22:00-14:30

1 stop30h 00m

$1,697

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 15/9

10:05-07:20

3 stops31h 15m

Sydney Kingsford Smith

Wed 30/9

09:20-21:32

2 stops26h 12m

$1,706

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Tue 27/10

21:30-23:20

1 stop34h 50m

Melbourne

Fri 13/11

23:40-14:40

1 stop31h 00m

$1,706

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Sun 25/10

21:45-23:20

1 stop34h 35m

Melbourne

Mon 2/11

23:40-14:40

1 stop31h 00m

$1,708

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Australia?

In general, February is the cheapest month to fly from Philadelphia to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,547. If you don’t want to visit Australia in February, then you should wait until March to fly from Philadelphia, when ticket prices are also cheap, with an average price of $1,684.

How far in advance should I book a flight from Philadelphia to Australia?

You are more likely to see cheaper flights to Australia from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,013 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Philadelphia for as low as $1,414 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 51% on your flight if you consider stops on a Philadelphia to Australia flight.

Cheap Philadelphia to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Australia

Fastest flight time	23h 07m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 23h 07m

There are no direct flights from Philadelphia to Australia. There are no popular flight routes from Philadelphia to Australia.

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Frequently asked questions about flying from Philadelphia to Australia

When did momondo last update prices for flights from Philadelphia Airport to Australia?
Prices for flights from Philadelphia Airport to Australia refresh daily.
How old do you have to be to fly from Philadelphia Airport to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Australia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Philadelphia to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Australia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Australia.

I’m not ready to book a flight from Philadelphia to Australia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Australia from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.