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

Qantas Airways, American Airlines, and Qatar Airways are the most popular carriers operating from Philadelphia to Australia

What airlines fly to Australia?

United Airlines, Qantas Airways and Delta 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 39% 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.

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 November 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.

$504 Cheap Flights from Philadelphia to Australia in 2025/26

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One-way

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Cheap round-trip flights

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2:14 pm - 5:10 pmPHL-BNE

35h 56m2 stops

7:40 pm - 6:55 amBNE-PHL

26h 15m1 stop

$968Qantas Airways

Find Deal

Mon, Feb 16 - Mon, Mar 2

2:30 pm - 9:00 amPHL-SYD

26h 30m1 stop

7:15 pm - 4:36 pmSYD-PHL

37h 21m2 stops

$973Qantas Airways

Find Deal

Sat, Jan 24 - Mon, Feb 9

7:50 am - 8:45 amPHL-BNE

33h 55m2 stops

10:45 am - 2:47 pmBNE-PHL

43h 02m2 stops

$1,128Air Canada

Find Deal

Mon, Feb 16 - Mon, Mar 2

7:50 am - 1:30 pmPHL-BNE

39h 40m3 stops

10:00 am - 2:46 pmBNE-PHL

42h 46m2 stops

$1,146Air Canada

Find Deal

Tue, Mar 24 - Fri, Apr 10

1:15 pm - 10:00 amPHL-MEL

28h 45m2 stops

1:00 pm - 7:41 pmMEL-PHL

22h 41m1 stop

$1,358United Airlines

Find Deal

Mon, Dec 8 - Sun, Dec 14

7:50 pm - 6:45 pmPHL-PER

33h 55m1 stop

10:45 pm - 8:00 amPER-PHL

46h 15m1 stop

$1,532Qatar Airways

Find Deal

Tue, Mar 3 - Sat, Mar 7

7:50 pm - 6:45 pmPHL-PER

33h 55m1 stop

10:45 pm - 8:00 amPER-PHL

46h 15m1 stop

$1,533Qatar Airways

Find Deal

Tue, Mar 3 - Sat, Mar 7

6:20 pm - 1:20 pmPHL-OOL

28h 00m2 stops

7:20 am - 11:32 pmOOL-PHL

31h 12m3 stops

$2,895United Airlines

Find Deal

Thu, Feb 26 - Mon, Mar 2

6:51 am - 11:30 amPHL-CBR

36h 39m3 stops

6:25 pm - 10:59 pmCBR-PHL

44h 34m3 stops

$12,064Air New Zealand

Find Deal

Mon, Dec 22 - Sat, Jan 31

12:37 pm - 5:10 pmPHL-CBR

36h 33m3 stops

7:00 am - 9:52 pmCBR-PHL

30h 52m2 stops

$13,012Air New Zealand

Find Deal

Mon, Dec 22 - Sat, Jan 31

United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

United Airlines

Dec 7

PHL1:15 pmPhiladelphia

27h 50m

3 stops

SYD9:05 amSydney Kingsford Smith

Dec 21

SYD11:20 amSydney Kingsford Smith

26h 11m

2 stops

PHL9:31 pmPhiladelphia

$1,050

Find similar

United Airlines

Dec 6

PHL8:05 pmPhiladelphia

42h 15m

2 stops

SYD6:20 amSydney Kingsford Smith

Dec 14

SYD11:50 amSydney Kingsford Smith

20h 51m

1 stop

PHL4:41 pmPhiladelphia

$1,065

Find similar

United Airlines

Dec 29

PHL6:25 pmPhiladelphia

43h 55m

1 stop

SYD6:20 amSydney Kingsford Smith

Jan 15

SYD12:10 pmSydney Kingsford Smith

25h 42m

1 stop

PHL9:52 pmPhiladelphia

$1,146

Find similar

American Airlines flights from Philadelphia to Australia

Our best American Airlines deals on Philadelphia to Australia flight tickets

American Airlines

Dec 30

PHL10:44 amPhiladelphia

30h 16m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 17

SYD11:20 amSydney Kingsford Smith

28h 28m

1 stop

PHL11:48 pmPhiladelphia

$1,119

Find similar

American Airlines

Dec 30

PHL3:41 pmPhiladelphia

25h 19m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 17

SYD11:20 amSydney Kingsford Smith

25h 05m

2 stops

PHL8:25 pmPhiladelphia

$1,124

Find similar

American Airlines

Dec 4

PHL4:04 pmPhiladelphia

24h 56m

2 stops

SYD9:00 amSydney Kingsford Smith

Dec 13

SYD11:20 amSydney Kingsford Smith

24h 45m

1 stop

PHL8:05 pmPhiladelphia

$1,199

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 2/16

2:14 pm-5:10 pm

2 stops35h 56m

Brisbane

Mon 3/2

7:40 pm-6:55 am

1 stop26h 15m

$968

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 1/24

2:30 pm-9:00 am

1 stop26h 30m

Sydney Kingsford Smith

Mon 2/9

7:15 pm-4:36 pm

2 stops37h 21m

$973

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 2/16

7:50 am-8:45 am

2 stops33h 55m

Brisbane

Mon 3/2

10:45 am-2:47 pm

2 stops43h 02m

$1,128

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/24

7:50 am-1:30 pm

3 stops39h 40m

Brisbane

Fri 4/10

10:00 am-2:46 pm

2 stops42h 46m

$1,146

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Mon 12/8

1:15 pm-10:00 am

2 stops28h 45m

Melbourne

Sun 12/14

1:00 pm-7:41 pm

1 stop22h 41m

$1,358

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Tue 3/3

7:50 pm-6:45 pm

1 stop33h 55m

Perth

Sat 3/7

10:45 pm-8:00 am

1 stop46h 15m

$1,532

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Tue 3/3

7:50 pm-6:45 pm

1 stop33h 55m

Perth

Sat 3/7

10:45 pm-8:00 am

1 stop46h 15m

$1,533

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Thu 2/26

6:20 pm-1:20 pm

2 stops28h 00m

Coolangatta Gold Coast

Mon 3/2

7:20 am-11:32 pm

3 stops31h 12m

$2,895

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Mon 12/22

6:51 am-11:30 am

3 stops36h 39m

Canberra

Sat 1/31

6:25 pm-10:59 pm

3 stops44h 34m

$12,064

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Mon 12/22

12:37 pm-5:10 pm

3 stops36h 33m

Canberra

Sat 1/31

7:00 am-9:52 pm

2 stops30h 52m

$13,012

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 $1,083. 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 $1,127.

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 $1,439 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 $1,198 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 31% 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

Direct flights	None

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 November 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 8,002 reviews	Search Delta flights
United Airlines	PriceFrom $860	Free Cancellation	Rating 7.4 9,029 reviews	Search United Airlines flights
Air Canada	PriceFrom $941	Free Cancellation	Rating 7.1 10,463 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $945	Free Cancellation	Rating 8.1 209 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $1,148	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,220	Free Cancellation	Rating 8.0 533 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,296	Free Cancellation	Rating 7.4 3,664 reviews	Search Qatar Airways flights
Qantas Airways	PriceFrom $1,309	Free Cancellation	Rating 7.5 942 reviews	Search Qantas Airways 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.

An easier way to manage your Australia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Australia

Popular cities in Australia

Flights to Sydneyfrom $638

Flights to Melbournefrom $673

Flights to Brisbanefrom $674

Flights to Perthfrom $942

Flights to Adelaidefrom $796

Flights to Cairnsfrom $871

Flights to Coolangattafrom $828

Flights to Hobartfrom $976

Flights to Canberrafrom $937

Flights to Darwinfrom $1,112

Flights to Maroochydorefrom $1,040

Flights to Launcestonfrom $1,252

Cheap flights from Philadelphia to Australia from $594

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Australia departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Philadelphia to Australia

Cheap round-trip flights

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United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

American Airlines flights from Philadelphia to Australia

Our best American Airlines deals on Philadelphia to Australia flight tickets

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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

What is the cheapest month to fly to Australia?

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

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

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

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 31% on your flight if you consider stops on a Philadelphia to Australia flight.

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

Qantas Airways, American Airlines, and Qatar Airways are the most popular carriers operating from Philadelphia to Australia

What airlines fly to Australia?

Cheap Philadelphia to Australia flight deals and tips

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

Direct flights

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

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

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

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

Best airlines flying from Philadelphia to Australia

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

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Australia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo