What airlines fly to Australia?

United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to Australia from Philadelphia according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 13 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

Qantas Airways, American Airlines, and United Airlines are the most popular carriers operating 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 are updated daily.

How many operators does momondo search for flights from Philadelphia Airport to Australia?

As of December 2025, there are 8 operators 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Australia.

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

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$615 Cheap Flights from Philadelphia to Australia in 2025/26

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Find the cheapest flights from Philadelphia to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 pm - 3:35 pm

PHL

MEL

33h 05m2 stops

12:00 pm - 11:48 pm

MEL

PHL

27h 48m1 stop

$909Qantas Airways

Wed, Feb 4 - Wed, Feb 11

5:17 pm - 5:10 pm

PHL

BNE

33h 53m2 stops

8:35 pm - 7:10 am

BNE

PHL

24h 35m1 stop

$934Qantas Airways

Tue, Mar 24 - Fri, Apr 10

8:00 am - 7:00 am

PHL

SYD

31h 00m1 stop

11:50 am - 10:57 pm

SYD

PHL

27h 07m1 stop

$995United Airlines

Mon, Feb 16 - Tue, Feb 24

5:00 pm - 7:00 am

PHL

SYD

46h 00m2 stops

12:10 pm - 9:31 pm

SYD

PHL

24h 21m1 stop

$999United Airlines

Mon, Mar 2 - Mon, Mar 16

7:55 pm - 6:45 pm

PHL

PER

33h 50m1 stop

10:45 pm - 9:30 am

PER

PHL

47h 45m1 stop

$1,351Qatar Airways

Mon, Feb 16 - Mon, Mar 2

12:15 pm - 6:45 pm

PHL

PER

41h 30m2 stops

10:45 pm - 9:30 am

PER

PHL

47h 45m1 stop

$1,478Qatar Airways

Mon, Feb 16 - Mon, Mar 2

8:35 am - 1:40 pm

PHL

ADL

37h 35m3 stops

8:55 pm - 10:57 pm

ADL

PHL

41h 32m3 stops

$1,641Air New Zealand

Sun, Feb 8 - Sun, Feb 22

8:35 am - 6:15 pm

PHL

ADL

42h 10m2 stops

7:00 pm - 10:57 pm

ADL

PHL

43h 27m3 stops

$1,648Air New Zealand

Sun, Feb 8 - Sun, Feb 22

7:50 am - 3:30 pm

PHL

PER

42h 40m3 stops

10:55 pm - 10:46 pm

PER

PHL

36h 51m3 stops

$2,201Air Canada

Sat, Feb 21 - Wed, Feb 25

7:50 am - 3:30 pm

PHL

PER

42h 40m3 stops

10:55 pm - 10:46 pm

PER

PHL

36h 51m3 stops

$2,301Air Canada

Sat, Feb 21 - Wed, Feb 25

United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

United Airlines

Feb 16

PHL8:00 amPhiladelphia

31h 00m

1 stop

SYD7:00 amSydney Kingsford Smith

Feb 24

SYD11:50 amSydney Kingsford Smith

27h 07m

1 stop

PHL10:57 pmPhiladelphia

$995

Find similar

United Airlines

Mar 2

PHL5:00 pmPhiladelphia

46h 00m

2 stops

SYD7:00 amSydney Kingsford Smith

Mar 16

SYD10:25 amSydney Kingsford Smith

35h 50m

2 stops

PHL7:15 amPhiladelphia

$999

Find similar

United Airlines

Mar 2

PHL5:55 pmPhiladelphia

45h 05m

1 stop

SYD7:00 amSydney Kingsford Smith

Mar 16

SYD11:50 amSydney Kingsford Smith

21h 03m

1 stop

PHL5:53 pmPhiladelphia

$1,002

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

Mar 1

PHL8:00 amPhiladelphia

32h 45m

2 stops

SYD8:45 amSydney Kingsford Smith

Mar 24

SYD7:15 pmSydney Kingsford Smith

51h 00m

2 stops

PHL7:15 amPhiladelphia

$1,336

Find similar

Air New Zealand

Feb 2

PHL12:40 pmPhiladelphia

28h 05m

2 stops

SYD8:45 amSydney Kingsford Smith

Feb 5

SYD9:55 amSydney Kingsford Smith

41h 40m

2 stops

PHL11:35 amPhiladelphia

$1,341

Find similar

Air New Zealand

Feb 15

PHL12:44 pmPhiladelphia

30h 11m

2 stops

BNE9:55 amBrisbane

Feb 25

BNE8:20 amBrisbane

29h 37m

2 stops

PHL10:57 pmPhiladelphia

$1,389

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Wed 2/4

2:30 pm-3:35 pm

2 stops33h 05m

Melbourne

Wed 2/11

12:00 pm-11:48 pm

1 stop27h 48m

$909

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/24

5:17 pm-5:10 pm

2 stops33h 53m

Brisbane

Fri 4/10

8:35 pm-7:10 am

1 stop24h 35m

$934

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/16

8:00 am-7:00 am

1 stop31h 00m

Sydney Kingsford Smith

Tue 2/24

11:50 am-10:57 pm

1 stop27h 07m

$995

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/2

5:00 pm-7:00 am

2 stops46h 00m

Sydney Kingsford Smith

Mon 3/16

12:10 pm-9:31 pm

1 stop24h 21m

$999

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Mon 2/16

7:55 pm-6:45 pm

1 stop33h 50m

Perth

Mon 3/2

10:45 pm-9:30 am

1 stop47h 45m

$1,351

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Mon 2/16

12:15 pm-6:45 pm

2 stops41h 30m

Perth

Mon 3/2

10:45 pm-9:30 am

1 stop47h 45m

$1,478

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 2/8

8:35 am-1:40 pm

3 stops37h 35m

Adelaide

Sun 2/22

8:55 pm-10:57 pm

3 stops41h 32m

$1,641

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 2/8

8:35 am-6:15 pm

2 stops42h 10m

Adelaide

Sun 2/22

7:00 pm-10:57 pm

3 stops43h 27m

$1,648

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Sat 2/21

7:50 am-3:30 pm

3 stops42h 40m

Perth

Wed 2/25

10:55 pm-10:46 pm

3 stops36h 51m

$2,201

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Sat 2/21

7:50 am-3:30 pm

3 stops42h 40m

Perth

Wed 2/25

10:55 pm-10:46 pm

3 stops36h 51m

$2,301

Flights are sorted by cheapest round-trip 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?

The month of February is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $1,059. If you aren’t able to travel during the month of February, then book flights to Australia from Philadelphia during September instead. Flights to Australia in September, while not as cheap as those in February, still average around $1,097.

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

The cheapest day to depart from Philadelphia to Australia is on a Sunday. Travelers who choose to depart for Australia on a Sunday will often find tickets for as low as $1,373. On the other hand, Thursday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,659.

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

Flying to Australia from Philadelphia in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,449 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,063 on average. Flights to Australia from Philadelphia in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Philadelphia for as low as $1,050 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 4% 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 are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Australia?
As of December 2025, there are 8 operators 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia Airport to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
Delta	PriceFrom $535	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
United Airlines	PriceFrom $859	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights
Air Canada	PriceFrom $941	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $945	Free Cancellation	Rating 8.0 211 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $1,044	Free Cancellation	Rating 7.5 949 reviews	Search Qantas Airways flights
Air New Zealand	PriceFrom $1,220	Free Cancellation	Rating 8.0 556 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,296	Free Cancellation	Rating 7.4 3,686 reviews	Search Qatar Airways flights
American Airlines	PriceFrom $1,350	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

Why use momondo?

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

Finding the right flight to Australia from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Flights from Philadelphia to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Australia from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Philadelphia to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.