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

Cathay Pacific, Qatar Airways, and Air New Zealand 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 54% 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 many operators does momondo search for flights from Philadelphia Airport to Australia?

As of October 2026, there is 1 operator available to choose from for flights from Philadelphia Airport to Australia.

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.

$979 Cheap Flights from Philadelphia to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Australia

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

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

34h 35m1 stop Doha Hamad Intl

23:40 - 14:50MEL Melbourne-PHL Philadelphia

31h 10m1 stop Doha Hamad Intl

$1,725Multiple Airlines

Wed, 4 Nov - Wed, 18 Nov

20:45 - 17:50PHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

16:10 - 15:50MEL Melbourne-PHL Philadelphia

38h 40m1 stop Doha Hamad Intl

$1,732Qatar Airways

Mon, 1 Mar - Mon, 15 Mar

20:45 - 17:50PHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

17:10 - 15:50MEL Melbourne-PHL Philadelphia

37h 40m1 stop Doha Hamad Intl

$1,732Qatar Airways

Wed, 10 Mar - Wed, 17 Mar

20:45 - 17:50PHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

16:10 - 15:50MEL Melbourne-PHL Philadelphia

38h 40m1 stop Doha Hamad Intl

$1,733Qatar Airways

Mon, 1 Mar - Mon, 15 Mar

20:45 - 17:50PHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

17:10 - 14:50MEL Melbourne-PHL Philadelphia

37h 40m1 stop Doha Hamad Intl

$1,738Qatar Airways

Wed, 10 Feb - Fri, 19 Feb

20:45 - 17:50PHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

17:10 - 14:50MEL Melbourne-PHL Philadelphia

37h 40m1 stop Doha Hamad Intl

$1,738Qatar Airways

Thu, 4 Feb - Fri, 12 Feb

20:45 - 18:20PHL Philadelphia-SYD Sydney Kingsford Smith

29h 35m1 stop Doha Hamad Intl

22:10 - 14:50SYD Sydney Kingsford Smith-PHL Philadelphia

32h 40m1 stop Doha Hamad Intl

$1,772Qatar Airways

Thu, 11 Feb - Fri, 26 Feb

20:45 - 06:50PHL Philadelphia-SYD Sydney Kingsford Smith

42h 05m1 stop Doha Hamad Intl

15:50 - 14:50SYD Sydney Kingsford Smith-PHL Philadelphia

39h 00m1 stop Doha Hamad Intl

$1,779Qatar Airways

Tue, 10 Nov - Tue, 17 Nov

15:14 - 06:55PHL Philadelphia-SYD Sydney Kingsford Smith

23h 41m1 stop Dallas/Fort Worth

11:05 - 20:14SYD Sydney Kingsford Smith-PHL Philadelphia

25h 09m2 stops Brisbane Los Angeles

$1,890Qantas Airways

Sun, 8 Nov - Wed, 18 Nov

16:46 - 05:00PHL Philadelphia-MEL Melbourne

44h 14m1 stop Dallas/Fort Worth

10:20 - 20:14MEL Melbourne-PHL Philadelphia

25h 54m2 stops Brisbane Los Angeles

$1,913Qantas Airways

Mon, 2 Nov - Wed, 11 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:27 - 07:55PHL Philadelphia-SYD Sydney Kingsford Smith

31h 28m1 stop San Francisco

11:50 - 07:39SYD Sydney Kingsford Smith-PHL Philadelphia

34h 49m2 stops Auckland Intl San Francisco

$2,319Air New Zealand

Mon, 5 Oct - Sun, 25 Oct

09:27 - 07:55PHL Philadelphia-SYD Sydney Kingsford Smith

31h 28m1 stop San Francisco

07:50 - 07:49SYD Sydney Kingsford Smith-PHL Philadelphia

38h 59m2 stops Auckland Intl San Francisco

$2,547Air New Zealand

Mon, 5 Oct - Fri, 16 Oct

09:27 - 17:45PHL Philadelphia-MEL Melbourne

41h 18m2 stops San Francisco Sydney Kingsford Smith

08:15 - 22:49MEL Melbourne-PHL Philadelphia

30h 34m2 stops Auckland Intl San Francisco

$2,649Air New Zealand

Mon, 5 Oct - Wed, 25 Nov

18:30 - 21:35PHL Philadelphia-MEL Melbourne

36h 05m2 stops San Francisco Sydney Kingsford Smith

12:10 - 22:49MEL Melbourne-PHL Philadelphia

26h 39m2 stops Auckland Intl San Francisco

$2,649Air New Zealand

Tue, 6 Oct - Wed, 25 Nov

10:38 - 11:45PHL Philadelphia-SYD Sydney Kingsford Smith

35h 07m2 stops Chicago O'Hare Intl Hong Kong Intl

08:40 - 00:25SYD Sydney Kingsford Smith-PHL Philadelphia

30h 45m2 stops Hong Kong Intl Dallas/Fort Worth

$2,695Multiple Airlines

Fri, 2 Oct - Thu, 8 Oct

18:41 - 18:50PHL Philadelphia-SYD Sydney Kingsford Smith

57h 09m2 stops Seattle/Tacoma Intl Honolulu

21:40 - 17:38SYD Sydney Kingsford Smith-PHL Philadelphia

34h 58m2 stops Honolulu Seattle/Tacoma Intl

$2,710Multiple Airlines

Mon, 5 Oct - Sun, 25 Oct

18:41 - 18:50PHL Philadelphia-SYD Sydney Kingsford Smith

57h 09m2 stops Seattle/Tacoma Intl Honolulu

20:45 - 17:38SYD Sydney Kingsford Smith-PHL Philadelphia

35h 53m2 stops Honolulu Seattle/Tacoma Intl

$2,757Multiple Airlines

Mon, 5 Oct - Fri, 16 Oct

18:41 - 18:50PHL Philadelphia-SYD Sydney Kingsford Smith

33h 09m2 stops Seattle/Tacoma Intl Honolulu

20:45 - 15:14SYD Sydney Kingsford Smith-PHL Philadelphia

33h 29m2 stops Honolulu Portland

$2,799Multiple Airlines

Wed, 7 Oct - Thu, 15 Oct

17:30 - 08:05PHL Philadelphia-SYD Sydney Kingsford Smith

23h 35m1 stop Los Angeles

13:00 - 18:50SYD Sydney Kingsford Smith-PHL Philadelphia

20h 50m1 stop Dallas/Fort Worth

$4,226Qantas Airways

Sun, 4 Oct - Tue, 6 Oct

17:30 - 07:30PHL Philadelphia-SYD Sydney Kingsford Smith

23h 00m1 stop Los Angeles

18:50 - 07:16SYD Sydney Kingsford Smith-PHL Philadelphia

27h 26m1 stop Los Angeles

$4,286Qantas Airways

Sat, 3 Oct - Mon, 5 Oct

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Air New Zealand flights from Philadelphia to Australia

Our best Air New Zealand deals on Philadelphia to Australia flight tickets

Air New Zealand

27 Oct

PHL15:20Philadelphia

26h 15m

2 stops

SYD08:35Sydney Kingsford Smith

3 Nov

SYD11:20Sydney Kingsford Smith

27h 36m

1 stop

PHL22:56Philadelphia

$1,884

Air New Zealand

1 Nov

PHL06:00Philadelphia

34h 55m

2 stops

MEL08:55Melbourne

8 Nov

MEL08:15Melbourne

30h 34m

2 stops

PHL22:49Philadelphia

$1,969

Air New Zealand

1 Mar

PHL08:10Philadelphia

34h 45m

2 stops

MEL10:55Melbourne

15 Mar

MEL19:10Melbourne

51h 35m

2 stops

PHL07:45Philadelphia

$1,976

Qatar Airways flights from Philadelphia to Australia

Our best Qatar Airways deals on Philadelphia to Australia flight tickets

Qatar Airways

1 Mar

PHL20:45Philadelphia

29h 05m

1 stop

MEL17:50Melbourne

15 Mar

MEL16:10Melbourne

38h 40m

1 stop

PHL15:50Philadelphia

$1,732

Qatar Airways

1 Mar

PHL20:45Philadelphia

29h 05m

1 stop

MEL17:50Melbourne

15 Mar

MEL16:10Melbourne

38h 40m

1 stop

PHL15:50Philadelphia

$1,733

Qatar Airways

4 Feb

PHL20:45Philadelphia

29h 05m

1 stop

MEL17:50Melbourne

12 Feb

MEL17:10Melbourne

37h 40m

1 stop

PHL14:50Philadelphia

$1,738

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 4/11

20:45-23:20

1 stop34h 35m

Melbourne

Wed 18/11

23:40-14:50

1 stop31h 10m

$1,725

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 1/3

20:45-17:50

1 stop29h 05m

Melbourne

Mon 15/3

16:10-15:50

1 stop38h 40m

$1,732

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 10/3

20:45-17:50

1 stop29h 05m

Melbourne

Wed 17/3

17:10-15:50

1 stop37h 40m

$1,732

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 1/3

20:45-17:50

1 stop29h 05m

Melbourne

Mon 15/3

16:10-15:50

1 stop38h 40m

$1,733

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Wed 10/2

20:45-17:50

1 stop29h 05m

Melbourne

Fri 19/2

17:10-14:50

1 stop37h 40m

$1,738

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Thu 4/2

20:45-17:50

1 stop29h 05m

Melbourne

Fri 12/2

17:10-14:50

1 stop37h 40m

$1,738

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Thu 11/2

20:45-18:20

1 stop29h 35m

Sydney Kingsford Smith

Fri 26/2

22:10-14:50

1 stop32h 40m

$1,772

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 10/11

20:45-06:50

1 stop42h 05m

Sydney Kingsford Smith

Tue 17/11

15:50-14:50

1 stop39h 00m

$1,779

Fastest return journey

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 8/11

15:14-06:55

1 stop23h 41m

Sydney Kingsford Smith

Wed 18/11

11:05-20:14

2 stops25h 09m

$1,890

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 2/11

16:46-05:00

1 stop44h 14m

Melbourne

Wed 11/11

10:20-20:14

2 stops25h 54m

$1,913

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 $1,585. 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 $1,785.

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 $2,049 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 $1,649 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 54% 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

Best price found	$979
Fastest flight time	22h 25m
Direct flights	None

The best one-way flight to Australia from Philadelphia in the past 72 hours is $979. The best return flight deal from Philadelphia to Australia found on momondo in the last 72 hours is $1,725.

The fastest flight from Philadelphia to Australia takes 22h 25m

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

Search flight deals

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 many operators does momondo search for flights from Philadelphia Airport to Australia?
As of October 2026, there is 1 operator available to choose from for flights from Philadelphia Airport to Australia.
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.

Best airlines flying from Philadelphia to Australia

Compare and see reviews for airlines that fly from Philadelphia to Australia with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $1,968	Free cancellation	Rating 7.5 1,101 reviews		Search Qantas Airways flights

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.