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

Qantas Airways, United Airlines, and Delta 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 42% 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.

$920 Cheap Flights from Philadelphia to Australia in 2025/26

1 adult

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Find the cheapest flights from Philadelphia to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:30 - 09:30

PHL

MEL

27h 00m1 stop

06:45 - 19:54

MEL

PHL

29h 09m2 stops

$1,360Qantas Airways

Thu, 5 Feb - Thu, 12 Feb

14:23 - 09:30

PHL

MEL

27h 07m1 stop

06:45 - 23:39

MEL

PHL

32h 54m2 stops

$1,361Qantas Airways

Fri, 20 Feb - Wed, 4 Mar

08:35 - 09:15

PHL

SYD

32h 40m1 stop

11:20 - 23:32

SYD

PHL

28h 12m2 stops

$1,488United Airlines

Mon, 16 Feb - Tue, 24 Feb

17:00 - 07:00

PHL

SYD

46h 00m2 stops

10:25 - 07:15

SYD

PHL

35h 50m2 stops

$1,494United Airlines

Mon, 2 Mar - Mon, 16 Mar

14:23 - 09:00

PHL

SYD

26h 37m1 stop

14:05 - 20:35

SYD

PHL

22h 30m1 stop

$1,565Multiple Airlines

Sun, 15 Feb - Thu, 26 Feb

15:35 - 23:15

PHL

AVV

39h 40m2 stops

06:00 - 19:47

AVV

PHL

29h 47m2 stops

$1,840Multiple Airlines

Sat, 7 Feb - Sat, 14 Feb

19:55 - 18:45

PHL

PER

33h 50m1 stop

22:45 - 09:30

PER

PHL

47h 45m1 stop

$2,021Qatar Airways

Mon, 16 Feb - Mon, 2 Mar

12:15 - 18:45

PHL

PER

41h 30m2 stops

22:45 - 09:30

PER

PHL

47h 45m1 stop

$2,211Qatar Airways

Mon, 16 Feb - Mon, 2 Mar

09:15 - 07:05

PHL

BNE

31h 50m2 stops

10:00 - 21:33

BNE

PHL

25h 33m2 stops

$2,259Air Canada

Tue, 14 Apr - Tue, 5 May

07:50 - 12:40

PHL

OOL

37h 50m3 stops

06:00 - 22:46

OOL

PHL

31h 46m3 stops

$3,615Air Canada

Fri, 30 Jan - Tue, 3 Feb

United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

United Airlines

16 Feb

PHL08:35Philadelphia

32h 40m

1 stop

SYD09:15Sydney Kingsford Smith

24 Feb

SYD11:20Sydney Kingsford Smith

28h 12m

2 stops

PHL23:32Philadelphia

$1,488

Find similar

United Airlines

2 Mar

PHL17:00Philadelphia

46h 00m

2 stops

SYD07:00Sydney Kingsford Smith

16 Mar

SYD10:25Sydney Kingsford Smith

35h 50m

2 stops

PHL07:15Philadelphia

$1,494

Find similar

United Airlines

2 Mar

PHL17:55Philadelphia

45h 05m

1 stop

SYD07:00Sydney Kingsford Smith

16 Mar

SYD11:50Sydney Kingsford Smith

21h 03m

1 stop

PHL17:53Philadelphia

$1,499

Find similar

Air New Zealand flights from Philadelphia to Australia

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

Air New Zealand

1 Mar

PHL08:00Philadelphia

34h 30m

2 stops

SYD10:30Sydney Kingsford Smith

24 Mar

SYD19:15Sydney Kingsford Smith

51h 00m

2 stops

PHL07:15Philadelphia

$1,997

Find similar

Air New Zealand

1 Mar

PHL08:00Philadelphia

32h 45m

2 stops

SYD08:45Sydney Kingsford Smith

24 Mar

SYD19:15Sydney Kingsford Smith

51h 00m

2 stops

PHL07:15Philadelphia

$1,998

Find similar

Air New Zealand

18 Mar

PHL18:20Philadelphia

36h 25m

2 stops

SYD21:45Sydney Kingsford Smith

25 Mar

SYD13:55Sydney Kingsford Smith

32h 20m

2 stops

PHL07:15Philadelphia

$2,018

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Thu 5/2

14:30-09:30

1 stop27h 00m

Melbourne

Thu 12/2

06:45-19:54

2 stops29h 09m

$1,360

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 20/2

14:23-09:30

1 stop27h 07m

Melbourne

Wed 4/3

06:45-23:39

2 stops32h 54m

$1,361

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 16/2

08:35-09:15

1 stop32h 40m

Sydney Kingsford Smith

Tue 24/2

11:20-23:32

2 stops28h 12m

$1,488

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/3

17:00-07:00

2 stops46h 00m

Sydney Kingsford Smith

Mon 16/3

10:25-07:15

2 stops35h 50m

$1,494

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 15/2

14:23-09:00

1 stop26h 37m

Sydney Kingsford Smith

Thu 26/2

14:05-20:35

1 stop22h 30m

$1,565

PhiladelphiaMelbourne

PHL - AVV

PHLAVV

Philadelphia

Sat 7/2

15:35-23:15

2 stops39h 40m

Melbourne Avalon

Sat 14/2

06:00-19:47

2 stops29h 47m

$1,840

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Mon 16/2

19:55-18:45

1 stop33h 50m

Perth

Mon 2/3

22:45-09:30

1 stop47h 45m

$2,021

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Mon 16/2

12:15-18:45

2 stops41h 30m

Perth

Mon 2/3

22:45-09:30

1 stop47h 45m

$2,211

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 14/4

09:15-07:05

2 stops31h 50m

Brisbane

Tue 5/5

10:00-21:33

2 stops25h 33m

$2,259

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Fri 30/1

07:50-12:40

3 stops37h 50m

Coolangatta Gold Coast

Tue 3/2

06:00-22:46

3 stops31h 46m

$3,615

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 $1,584. If you don’t want to visit Australia in February, then you should wait until September to fly from Philadelphia, when ticket prices are also cheap, with an average price of $1,641.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Philadelphia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $2,023. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Philadelphia to Australia on a Wednesday will generally be more expensive and average around $3,741. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

How far in advance should I book a flight 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 $2,131 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 $1,571 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 60% 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	22h 42m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 22h 42m

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

Search flight deals

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.