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

Cathay Pacific, Qatar Airways, and JetBlue 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 48% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 10 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 September 2026, there are 4 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.

$688 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.

3:57 pm - 8:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 08m1 stop Los Angeles

10:10 am - 4:19 pmSYD Sydney Kingsford Smith-PHL Philadelphia

21h 09m1 stop Los Angeles

$1,119Qantas Airways

Tue, Oct 13 - Tue, Oct 20

3:20 pm - 7:45 amPHL Philadelphia-BNE Brisbane

26h 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

$1,138Air Canada

Wed, Oct 28 - Wed, Nov 4

3:20 pm - 7:45 amPHL Philadelphia-BNE Brisbane

26h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

6:05 am - 10:56 pmBNE Brisbane-PHL Philadelphia

31h 51m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl

$1,164Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

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

26h 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

$1,175Air Canada

Fri, Nov 20 - Sun, Nov 29

1:20 pm - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

28h 15m3 stops Chicago O'Hare Intl Denver Intl Vancouver Intl

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

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

$1,179Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

9:10 am - 6:30 amPHL Philadelphia-BNE Brisbane

31h 20m1 stop San Francisco

11:20 am - 5:15 pmBNE Brisbane-PHL Philadelphia

20h 55m1 stop San Francisco

$1,259United Airlines

Wed, Oct 28 - Wed, Nov 4

10:54 am - 6:30 amPHL Philadelphia-BNE Brisbane

29h 36m2 stops Chicago O'Hare Intl San Francisco

11:20 am - 5:15 pmBNE Brisbane-PHL Philadelphia

20h 55m1 stop San Francisco

$1,259United Airlines

Wed, Oct 28 - Wed, Nov 4

3:35 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 20m1 stop Dallas/Fort Worth

11:05 am - 8:35 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 30m2 stops Brisbane Los Angeles

$1,279Qantas Airways

Wed, Dec 30 - Wed, Jan 27

2:48 pm - 5:50 amPHL Philadelphia-BNE Brisbane

25h 02m2 stops Charlotte Douglas Los Angeles

1:10 pm - 11:50 pmBNE Brisbane-PHL Philadelphia

25h 40m1 stop Los Angeles

$1,351American Airlines

Sat, Oct 31 - Sat, Nov 7

4:34 pm - 6:30 amPHL Philadelphia-BNE Brisbane

23h 56m2 stops Cincinnati Cinci./N. Kentucky Dallas/Fort Worth

1:10 pm - 11:50 pmBNE Brisbane-PHL Philadelphia

25h 40m1 stop Los Angeles

$1,358American Airlines

Thu, Oct 29 - Thu, Nov 5

Cheap last minute flights

Enter your travel dates to find the best prices.

9:30 pm - 11:55 pmPHL Philadelphia-MEL Melbourne

36h 25m2 stops Doha Hamad Intl Brisbane

11:00 pm - 2:30 pmMEL Melbourne-PHL Philadelphia

30h 30m1 stop Doha Hamad Intl

$1,397Qatar Airways

Sat, Sep 19 - Sat, Oct 10

9:30 pm - 11:55 pmPHL Philadelphia-MEL Melbourne

36h 25m2 stops Doha Hamad Intl Brisbane

11:00 pm - 2:30 pmMEL Melbourne-PHL Philadelphia

30h 30m1 stop Doha Hamad Intl

$1,452Qatar Airways

Sat, Sep 19 - Sat, Oct 10

6:13 pm - 10:55 amPHL Philadelphia-MEL Melbourne

26h 42m2 stops Houston George Bush Intcntl Auckland Intl

7:35 am - 12:25 pmMEL Melbourne-PHL Philadelphia

42h 50m3 stops Auckland Intl San Francisco Chicago O'Hare Intl

$1,468Multiple Airlines

Fri, Sep 18 - Tue, Sep 29

10:05 am - 7:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 2:47 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 27m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,945Air Canada

Wed, Sep 23 - Thu, Oct 1

10:05 am - 7:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl

9:20 am - 2:47 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 27m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$1,953Air Canada

Wed, Sep 23 - Thu, Oct 1

3:25 pm - 7:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 55m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

9:20 am - 9:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

$2,800Air Canada

Fri, Sep 18 - Fri, Sep 25

5:07 pm - 8:15 amPHL Philadelphia-MEL Melbourne

25h 08m1 stop San Francisco

10:55 am - 9:15 pmMEL Melbourne-PHL Philadelphia

24h 20m1 stop San Francisco

$5,464United Airlines

Wed, Sep 23 - Sun, Sep 27

10:44 am - 5:00 amPHL Philadelphia-MEL Melbourne

28h 16m1 stop Dallas/Fort Worth

9:00 pm - 6:42 pmMEL Melbourne-PHL Philadelphia

35h 42m2 stops Sydney Kingsford Smith Los Angeles

$5,599Qantas Airways

Wed, Sep 23 - Sun, Sep 27

7:35 pm - 6:45 amPHL Philadelphia-MEL Melbourne

45h 10m1 stop Los Angeles

9:45 am - 6:42 pmMEL Melbourne-PHL Philadelphia

22h 57m1 stop Los Angeles

$21,538Qantas Airways

Fri, Sep 18 - Tue, Sep 29

5:45 pm - 2:10 pmPHL Philadelphia-AVV Melbourne Avalon

30h 25m2 stops Dallas/Fort Worth Sydney Kingsford Smith

4:40 pm - 6:00 amAVV Melbourne Avalon-PHL Philadelphia

27h 20m2 stops Sydney Kingsford Smith San Francisco

$22,830Qantas Airways

Fri, Sep 18 - Tue, Sep 29

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Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

Air Canada

Oct 28

PHL3:20 pmPhiladelphia

26h 25m

2 stops

BNE7:45 amBrisbane

Nov 4

BNE10:45 amBrisbane

42h 59m

2 stops

PHL2:44 pmPhiladelphia

$1,138

Air Canada

Nov 20

PHL3:20 pmPhiladelphia

26h 25m

2 stops

BNE8:45 amBrisbane

Nov 29

BNE10:45 amBrisbane

42h 59m

2 stops

PHL2:44 pmPhiladelphia

$1,175

Air Canada

Feb 17

PHL3:20 pmPhiladelphia

26h 15m

2 stops

SYD9:35 amSydney Kingsford Smith

Feb 24

SYD11:20 amSydney Kingsford Smith

43h 24m

2 stops

PHL2:44 pmPhiladelphia

$1,177

ANA flights from Philadelphia to Australia

Our best ANA deals on Philadelphia to Australia flight tickets

ANA

Sep 22

PHL7:00 amPhiladelphia

34h 20m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 29

SYD9:20 amSydney Kingsford Smith

27h 26m

1 stop

PHL10:46 pmPhiladelphia

$1,999

ANA

Oct 1

PHL7:00 amPhiladelphia

34h 20m

1 stop

SYD7:20 amSydney Kingsford Smith

Oct 6

SYD10:20 amSydney Kingsford Smith

27h 26m

1 stop

PHL10:46 pmPhiladelphia

$2,208

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 10/13

3:57 pm-8:05 am

1 stop25h 08m

Sydney Kingsford Smith

Tue 10/20

10:10 am-4:19 pm

1 stop21h 09m

$1,119

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 10/28

3:20 pm-7:45 am

2 stops26h 25m

Brisbane

Wed 11/4

10:45 am-2:44 pm

2 stops42h 59m

$1,138

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 10/28

3:20 pm-7:45 am

2 stops26h 25m

Brisbane

Wed 11/4

6:05 am-10:56 pm

3 stops31h 51m

$1,164

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Fri 11/20

3:20 pm-8:45 am

2 stops26h 25m

Brisbane

Sun 11/29

10:45 am-2:44 pm

2 stops42h 59m

$1,175

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 10/27

1:20 pm-8:35 am

3 stops28h 15m

Sydney Kingsford Smith

Tue 11/3

11:20 am-2:44 pm

2 stops43h 24m

$1,179

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 10/28

9:10 am-6:30 am

1 stop31h 20m

Brisbane

Wed 11/4

11:20 am-5:15 pm

1 stop20h 55m

$1,259

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 10/28

10:54 am-6:30 am

2 stops29h 36m

Brisbane

Wed 11/4

11:20 am-5:15 pm

1 stop20h 55m

$1,259

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 12/30

3:35 pm-6:55 am

1 stop23h 20m

Sydney Kingsford Smith

Wed 1/27

11:05 am-8:35 pm

2 stops25h 30m

$1,279

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Sat 10/31

2:48 pm-5:50 am

2 stops25h 02m

Brisbane

Sat 11/7

1:10 pm-11:50 pm

1 stop25h 40m

$1,351

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Thu 10/29

4:34 pm-6:30 am

2 stops23h 56m

Brisbane

Thu 11/5

1:10 pm-11:50 pm

1 stop25h 40m

$1,358

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 $1,130. 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 $1,422 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 $957 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 42% 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	$688
Fastest flight time	23h 20m
Direct flights	None

The best one-way flight to Australia from Philadelphia in the past 72 hours is $688. The best round-trip flight deal from Philadelphia to Australia found on momondo in the last 72 hours is $1,119.

The fastest flight from Philadelphia to Australia takes 23h 20m

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 September 2026, there are 4 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 7.4 10,224 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $945	Free Cancellation	Rating 7.5 1,101 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,159	Free Cancellation	Rating 7.1 12,077 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,181	Free Cancellation	Rating 7.1 11,649 reviews	Search Air Canada 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.