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

Cathay Pacific, Qatar Airways, and Air New Zealand 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 46% 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 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.

8:45 pm - 5:50 pmPHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

4:10 pm - 3:50 pmMEL Melbourne-PHL Philadelphia

38h 40m1 stop Doha Hamad Intl

$1,195Qatar Airways

Mon, Mar 1 - Mon, Mar 15

8:45 pm - 5:50 pmPHL Philadelphia-MEL Melbourne

29h 05m1 stop Doha Hamad Intl

4:10 pm - 2:50 pmMEL Melbourne-PHL Philadelphia

38h 40m1 stop Doha Hamad Intl

$1,195Qatar Airways

Tue, Feb 16 - Tue, Feb 23

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

$1,240Air Canada

Tue, Feb 2 - Tue, Feb 9

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

$1,240Air Canada

Mon, Feb 8 - Tue, Feb 16

3:55 pm - 5:50 amPHL Philadelphia-BNE Brisbane

22h 55m1 stop Los Angeles

9:40 am - 7:48 pmBNE Brisbane-PHL Philadelphia

25h 08m1 stop Dallas/Fort Worth

$1,284Qantas Airways

Mon, Feb 8 - Tue, Feb 16

12:34 pm - 6:30 amPHL Philadelphia-BNE Brisbane

26h 56m1 stop Dallas/Fort Worth

9:40 am - 7:05 pmBNE Brisbane-PHL Philadelphia

24h 25m1 stop Dallas/Fort Worth

$1,289Qantas Airways

Tue, Feb 2 - Tue, Feb 9

10:34 am - 5:50 amPHL Philadelphia-BNE Brisbane

28h 16m1 stop Los Angeles

9:40 am - 5:11 pmBNE Brisbane-PHL Philadelphia

22h 31m2 stops Dallas/Fort Worth Austin Bergstrom

$1,295American Airlines

Mon, Feb 8 - Tue, Feb 16

9:50 am - 7:30 amPHL Philadelphia-BNE Brisbane

30h 40m2 stops Chicago O'Hare Intl San Francisco

11:20 am - 4:58 pmBNE Brisbane-PHL Philadelphia

20h 38m1 stop San Francisco

$1,296United Airlines

Wed, Dec 30 - Wed, Jan 13

6:10 pm - 7:30 amPHL Philadelphia-BNE Brisbane

22h 20m1 stop San Francisco

11:20 am - 4:58 pmBNE Brisbane-PHL Philadelphia

20h 38m1 stop San Francisco

$1,296United Airlines

Wed, Dec 30 - Wed, Jan 13

1:54 pm - 5:50 amPHL Philadelphia-BNE Brisbane

24h 56m2 stops Chicago O'Hare Intl Los Angeles

9:40 am - 5:55 pmBNE Brisbane-PHL Philadelphia

23h 15m2 stops Dallas/Fort Worth Pittsburgh

$1,465American Airlines

Mon, Dec 28 - Fri, Jan 15

Cheap last minute flights

Enter your travel dates to find the best prices.

9:30 pm - 11:05 pmPHL Philadelphia-MEL Melbourne

34h 35m1 stop Doha Hamad Intl

5:10 pm - 2:50 pmMEL Melbourne-PHL Philadelphia

37h 40m1 stop Doha Hamad Intl

$1,773Qatar Airways

Fri, Oct 9 - Thu, Nov 26

6:30 pm - 9:35 pmPHL Philadelphia-MEL Melbourne

36h 05m2 stops San Francisco Sydney Kingsford Smith

12:10 pm - 10:49 pmMEL Melbourne-PHL Philadelphia

26h 39m2 stops Auckland Intl San Francisco

$1,845Air New Zealand

Tue, Oct 6 - Wed, Nov 25

5:39 pm - 11:15 pmPHL Philadelphia-MEL Melbourne

38h 36m2 stops Dallas/Fort Worth Hong Kong Intl

3:30 pm - 8:50 pmMEL Melbourne-PHL Philadelphia

45h 20m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,864Cathay Pacific

Sun, Oct 11 - Tue, Nov 24

6:00 am - 11:10 amPHL Philadelphia-MEL Melbourne

38h 10m2 stops San Francisco Sydney Kingsford Smith

12:10 pm - 10:49 pmMEL Melbourne-PHL Philadelphia

26h 39m2 stops Auckland Intl San Francisco

$1,868Air New Zealand

Sun, Oct 11 - Wed, Nov 25

10:05 am - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

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

10:20 am - 9:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

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

$2,367Air Canada

Sat, Oct 10 - Fri, Oct 16

10:05 am - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

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

10:20 am - 9:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

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

$2,919Air Canada

Sat, Oct 10 - Fri, Oct 16

5:30 pm - 8:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 35m1 stop Los Angeles

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

21h 09m1 stop Los Angeles

$2,922Qantas Airways

Wed, Oct 7 - Fri, Oct 9

5:35 pm - 8:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 30m2 stops Phoenix Sky Harbor Intl Los Angeles

9:25 pm - 5:26 amSYD Sydney Kingsford Smith-PHL Philadelphia

23h 01m2 stops San Francisco Phoenix Sky Harbor Intl

$2,998American Airlines

Wed, Oct 7 - Fri, Oct 9

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

25h 08m1 stop Los Angeles

9:25 pm - 5:26 amSYD Sydney Kingsford Smith-PHL Philadelphia

23h 01m2 stops San Francisco Phoenix Sky Harbor Intl

$2,998American Airlines

Wed, Oct 7 - Fri, Oct 9

1:00 pm - 6:45 amPHL Philadelphia-MEL Melbourne

26h 45m1 stop Los Angeles

10:40 am - 7:11 pmMEL Melbourne-PHL Philadelphia

24h 31m2 stops Sydney Kingsford Smith Dallas/Fort Worth

$3,029Qantas Airways

Thu, Oct 8 - Wed, Nov 25

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air New Zealand flights from Philadelphia to Australia

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

Air New Zealand

Jan 26

PHL9:30 amPhiladelphia

31h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 2

SYD11:50 amSydney Kingsford Smith

45h 06m

2 stops

PHL4:56 pmPhiladelphia

$1,338

Air New Zealand

Dec 6

PHL9:20 amPhiladelphia

33h 15m

2 stops

SYD10:35 amSydney Kingsford Smith

Jan 10

SYD7:25 pmSydney Kingsford Smith

43h 34m

2 stops

PHL10:59 pmPhiladelphia

$1,345

Air New Zealand

Dec 6

PHL9:20 amPhiladelphia

31h 15m

2 stops

SYD8:35 amSydney Kingsford Smith

Jan 10

SYD7:25 pmSydney Kingsford Smith

43h 05m

2 stops

PHL10:30 pmPhiladelphia

$1,346

Qatar Airways flights from Philadelphia to Australia

Our best Qatar Airways deals on Philadelphia to Australia flight tickets

Qatar Airways

Mar 1

PHL8:45 pmPhiladelphia

29h 05m

1 stop

MEL5:50 pmMelbourne

Mar 15

MEL4:10 pmMelbourne

38h 40m

1 stop

PHL3:50 pmPhiladelphia

$1,195

Qatar Airways

Mar 8

PHL8:45 pmPhiladelphia

52h 25m

2 stops

PER2:10 pmPerth

Mar 15

PER10:45 pmPerth

29h 05m

1 stop

PHL3:50 pmPhiladelphia

$1,197

Qatar Airways

Mar 8

PHL8:45 pmPhiladelphia

52h 25m

2 stops

PER2:10 pmPerth

Mar 15

PER10:45 pmPerth

29h 05m

1 stop

PHL3:50 pmPhiladelphia

$1,198

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Mon 3/1

8:45 pm-5:50 pm

1 stop29h 05m

Melbourne

Mon 3/15

4:10 pm-3:50 pm

1 stop38h 40m

$1,195

PhiladelphiaMelbourne

PHL Philadelphia - MEL Melbourne

PHLMEL

Philadelphia

Tue 2/16

8:45 pm-5:50 pm

1 stop29h 05m

Melbourne

Tue 2/23

4:10 pm-2:50 pm

1 stop38h 40m

$1,195

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 2/2

3:20 pm-8:45 am

2 stops26h 25m

Brisbane

Tue 2/9

10:45 am-2:44 pm

2 stops42h 59m

$1,240

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 2/8

3:20 pm-8:45 am

2 stops26h 25m

Brisbane

Tue 2/16

10:45 am-2:44 pm

2 stops42h 59m

$1,240

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 2/8

3:55 pm-5:50 am

1 stop22h 55m

Brisbane

Tue 2/16

9:40 am-7:48 pm

1 stop25h 08m

$1,284

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Tue 2/2

12:34 pm-6:30 am

1 stop26h 56m

Brisbane

Tue 2/9

9:40 am-7:05 pm

1 stop24h 25m

$1,289

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 2/8

10:34 am-5:50 am

1 stop28h 16m

Brisbane

Tue 2/16

9:40 am-5:11 pm

2 stops22h 31m

$1,295

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 12/30

9:50 am-7:30 am

2 stops30h 40m

Brisbane

Wed 1/13

11:20 am-4:58 pm

1 stop20h 38m

$1,296

Quickest round-trip

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Wed 12/30

6:10 pm-7:30 am

1 stop22h 20m

Brisbane

Wed 1/13

11:20 am-4:58 pm

1 stop20h 38m

$1,296

PhiladelphiaBrisbane

PHL Philadelphia - BNE Brisbane

PHLBNE

Philadelphia

Mon 12/28

1:54 pm-5:50 am

2 stops24h 56m

Brisbane

Fri 1/15

9:40 am-5:55 pm

2 stops23h 15m

$1,465

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 $1,104. 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 $1,243.

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 $1,148 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 40% 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	23h 20m
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 $1,195.

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 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 7.4 10,279 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $945	Free Cancellation	Rating 7.5 1,103 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,159	Free Cancellation	Rating 7.0 12,128 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,181	Free Cancellation	Rating 7.1 11,718 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,352	Free Cancellation	Rating 8.0 669 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.