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

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

What 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 45% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 11 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 October 2026, there are 5 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.

$652 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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:20 pm - 8:45 amPHL Philadelphia-BNE Brisbane

50h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:45 am - 2:44 pmBNE Brisbane-PHL Philadelphia

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

$1,087Air Canada

Wed, Dec 23 - Fri, Jan 15

3:20 pm - 8:45 amPHL Philadelphia-BNE Brisbane

50h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

10:45 am - 2:44 pmBNE Brisbane-PHL Philadelphia

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

$1,087Air Canada

Wed, Dec 23 - Sat, Jan 16

11:39 am - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

29h 56m2 stops Chicago O'Hare Intl Vancouver Intl

10:20 am - 10:53 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 33m2 stops Vancouver Intl Toronto Pearson Intl

$1,140Multiple Airlines

Tue, Mar 23 - Sat, Apr 3

3:20 pm - 9:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

26h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

11:20 am - 2:44 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 24m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,158Air New Zealand

Mon, Feb 8 - Tue, Feb 16

12:01 pm - 10:05 pmPHL Philadelphia-SYD Sydney Kingsford Smith

42h 04m3 stops Dallas/Fort Worth Los Angeles Nadi

6:00 am - 5:11 amSYD Sydney Kingsford Smith-PHL Philadelphia

39h 11m3 stops Nadi Los Angeles Denver Intl

$1,158Multiple Airlines

Sat, Dec 5 - Sun, Dec 20

3:20 pm - 9:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

26h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

11:20 am - 2:44 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 24m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,161Air New Zealand

Sun, Feb 7 - Tue, Feb 16

4:00 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 00m1 stop Los Angeles

11:10 am - 5:55 pmSYD Sydney Kingsford Smith-PHL Philadelphia

22h 45m1 stop Los Angeles

$1,235Qantas Airways

Tue, Dec 1 - Tue, Dec 8

1:47 pm - 6:25 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 38m1 stop Los Angeles

11:10 am - 8:14 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 04m1 stop Los Angeles

$1,255Qantas Airways

Sun, Nov 8 - Wed, Nov 18

1:55 pm - 9:30 amPHL Philadelphia-MEL Melbourne

27h 35m2 stops Pittsburgh Los Angeles

10:45 pm - 6:53 amMEL Melbourne-PHL Philadelphia

24h 08m2 stops Los Angeles Las Vegas Harry Reid Intl

$1,260American Airlines

Mon, Feb 15 - Mon, Mar 1

4:00 pm - 9:30 amPHL Philadelphia-MEL Melbourne

25h 30m1 stop Los Angeles

10:45 pm - 9:13 amMEL Melbourne-PHL Philadelphia

26h 28m2 stops Los Angeles Charlotte Douglas

$1,260American Airlines

Mon, Feb 15 - Mon, Mar 1

Cheap last minute flights

Enter your travel dates to find the best prices.

3:20 pm - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

50h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

11:20 am - 2:39 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 19m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,132Air Canada

Mon, Oct 26 - Mon, Nov 2

3:20 pm - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

50h 15m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

11:20 am - 2:39 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 19m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,140Air Canada

Mon, Oct 26 - Mon, Nov 2

1:24 pm - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

28h 11m2 stops Chicago O'Hare Intl Vancouver Intl

11:20 am - 10:46 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 26m2 stops Vancouver Intl Toronto Pearson Intl

$1,178Multiple Airlines

Sat, Oct 24 - Sat, Nov 7

3:20 pm - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

50h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

11:20 am - 10:46 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 26m1 stop Toronto Pearson Intl

$1,226Air New Zealand

Mon, Oct 26 - Mon, Nov 2

1:05 pm - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

28h 15m2 stops Houston George Bush Intcntl Vancouver Intl

10:20 am - 3:39 pmSYD Sydney Kingsford Smith-PHL Philadelphia

44h 19m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,229Multiple Airlines

Thu, Oct 22 - Sat, Oct 31

5:30 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 30m1 stop Los Angeles

11:10 am - 5:49 pmSYD Sydney Kingsford Smith-PHL Philadelphia

22h 39m1 stop Los Angeles

$1,232Qantas Airways

Mon, Oct 26 - Tue, Nov 10

5:30 pm - 9:30 amPHL Philadelphia-MEL Melbourne

25h 00m1 stop Los Angeles

10:45 pm - 7:06 amMEL Melbourne-PHL Philadelphia

24h 21m1 stop Los Angeles

$1,248American Airlines

Mon, Oct 26 - Tue, Nov 3

3:57 pm - 9:30 amPHL Philadelphia-MEL Melbourne

26h 33m1 stop Los Angeles

12:00 pm - 8:33 pmMEL Melbourne-PHL Philadelphia

24h 33m2 stops Dallas/Fort Worth Miami

$1,248American Airlines

Mon, Oct 26 - Tue, Nov 3

5:30 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 30m1 stop Los Angeles

2:05 pm - 9:07 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 02m1 stop Dallas/Fort Worth

$1,255Qantas Airways

Mon, Oct 26 - Mon, Nov 2

8:00 am - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 20m1 stop Vancouver Intl

10:20 am - 10:46 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 26m1 stop Toronto Pearson Intl

$1,302Air New Zealand

Thu, Oct 22 - Sat, Oct 31

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Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets

Qantas Airways

Oct 26

PHL5:30 pmPhiladelphia

24h 30m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 10

SYD11:10 amSydney Kingsford Smith

22h 39m

1 stop

PHL5:49 pmPhiladelphia

$1,232

Qantas Airways

Dec 1

PHL4:00 pmPhiladelphia

25h 00m

1 stop

SYD9:00 amSydney Kingsford Smith

Dec 8

SYD11:10 amSydney Kingsford Smith

22h 45m

1 stop

PHL5:55 pmPhiladelphia

$1,235

Qantas Airways

Oct 26

PHL5:30 pmPhiladelphia

24h 30m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 2

SYD2:05 pmSydney Kingsford Smith

23h 02m

1 stop

PHL9:07 pmPhiladelphia

$1,255

JetBlue flights from Philadelphia to Australia

Our best JetBlue deals on Philadelphia to Australia flight tickets

JetBlue

Nov 5

PHL8:45 pmPhiladelphia

30h 35m

1 stop

SYD7:20 pmSydney Kingsford Smith

Nov 15

SYD10:10 pmSydney Kingsford Smith

32h 40m

1 stop

PHL2:50 pmPhiladelphia

$1,557

JetBlue

Nov 1

PHL8:45 pmPhiladelphia

29h 45m

1 stop

BNE5:30 pmBrisbane

Nov 8

BNE9:55 pmBrisbane

31h 55m

1 stop

PHL2:50 pmPhiladelphia

$1,780

JetBlue

Oct 28

PHL9:45 pmPhiladelphia

33h 00m

1 stop

PER6:45 pmPerth

Nov 8

PER10:45 pmPerth

29h 05m

1 stop

PHL2:50 pmPhiladelphia

$1,802

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 12/23

3:20 pm-8:45 am

2 stops50h 25m

Brisbane

Fri 1/15

10:45 am-2:44 pm

2 stops42h 59m

$1,087

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 12/23

3:20 pm-8:45 am

2 stops50h 25m

Brisbane

Sat 1/16

10:45 am-2:44 pm

2 stops42h 59m

$1,087

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 3/23

11:39 am-8:35 am

2 stops29h 56m

Sydney Kingsford Smith

Sat 4/3

10:20 am-10:53 pm

2 stops27h 33m

$1,140

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 2/8

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

Tue 2/16

11:20 am-2:44 pm

2 stops43h 24m

$1,158

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 12/5

12:01 pm-10:05 pm

3 stops42h 04m

Sydney Kingsford Smith

Sun 12/20

6:00 am-5:11 am

3 stops39h 11m

$1,158

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 2/7

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

Tue 2/16

11:20 am-2:44 pm

2 stops43h 24m

$1,161

Quickest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 12/1

4:00 pm-9:00 am

1 stop25h 00m

Sydney Kingsford Smith

Tue 12/8

11:10 am-5:55 pm

1 stop22h 45m

$1,235

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sun 11/8

1:47 pm-6:25 am

1 stop24h 38m

Sydney Kingsford Smith

Wed 11/18

11:10 am-8:14 pm

1 stop25h 04m

$1,255

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 2/15

1:55 pm-9:30 am

2 stops27h 35m

Melbourne

Mon 3/1

10:45 pm-6:53 am

2 stops24h 08m

$1,260

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 2/15

4:00 pm-9:30 am

1 stop25h 30m

Melbourne

Mon 3/1

10:45 pm-9:13 am

2 stops26h 28m

$1,260

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 $1,141. If you aren’t able to travel during the month of February, then book flights to Australia from Philadelphia during March instead. Flights to Australia in March, while not as cheap as those in February, still average around $1,199.

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 $1,428 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 $1,148 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 7% 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	$652
Fastest flight time	24h 05m
Direct flights	None

The best one-way flight to Australia from Philadelphia in the past 72 hours is $652. The best round-trip flight deal from Philadelphia to Australia found on momondo in the last 72 hours is $1,087.

The fastest flight from Philadelphia to Australia takes 24h 05m

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 are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Australia?
As of October 2026, there are 5 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
United Airlines	PriceFrom $843	Free Cancellation	Rating 7.3 10,401 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $945	Free Cancellation	Rating 7.5 1,115 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,159	Free Cancellation	Rating 7.0 12,186 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,181	Free Cancellation	Rating 7.1 11,791 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,352	Free Cancellation	Rating 8.0 675 reviews	Search Air New Zealand 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.