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

Qantas Airways, United Airlines, and Air Canada are the most popular carriers operating from Philadelphia to Australia

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.

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.

$613 Cheap Flights from Philadelphia to Australia in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

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 - 7:30 am

PHL

BNE

50h 00m2 stops

7:40 pm - 7:01 am

BNE

PHL

26h 21m1 stop

$970Qantas Airways

Sat, Jan 24 - Sat, Jan 31

2:30 pm - 5:10 pm

PHL

BNE

35h 40m2 stops

12:10 pm - 11:48 pm

BNE

PHL

26h 38m1 stop

$971Qantas Airways

Thu, Jan 22 - Thu, Jan 29

3:30 pm - 7:45 am

PHL

BNE

26h 15m2 stops

10:00 am - 2:46 pm

BNE

PHL

42h 46m2 stops

$1,170Air Canada

Tue, Mar 24 - Fri, Apr 10

7:50 am - 8:45 am

PHL

BNE

33h 55m2 stops

10:45 am - 2:47 pm

BNE

PHL

43h 02m2 stops

$1,173Air Canada

Sun, Jan 25 - Thu, Feb 5

6:25 pm - 9:30 am

PHL

ADL

23h 35m1 stop

2:55 pm - 9:52 pm

ADL

PHL

22h 27m1 stop

$1,438United Airlines

Thu, Dec 25 - Mon, Jan 12

6:25 pm - 9:30 am

PHL

ADL

23h 35m1 stop

2:55 pm - 9:38 am

ADL

PHL

34h 13m2 stops

$1,442United Airlines

Thu, Dec 25 - Mon, Jan 12

4:44 pm - 11:55 am

PHL

PER

30h 11m2 stops

10:45 pm - 9:00 am

PER

PHL

47h 15m1 stop

$1,603Qatar Airways

Tue, Jan 13 - Sat, Jan 24

3:20 pm - 11:55 am

PHL

PER

31h 35m2 stops

10:45 pm - 9:00 am

PER

PHL

47h 15m1 stop

$1,662Qatar Airways

Tue, Jan 13 - Sat, Jan 24

5:35 pm - 4:05 pm

PHL

MCY

32h 30m3 stops

4:50 pm - 7:45 am

MCY

PHL

52h 55m2 stops

$2,025Air New Zealand

Sat, Jun 6 - Sun, Jun 14

6:13 pm - 4:05 pm

PHL

MCY

31h 52m2 stops

12:35 pm - 4:58 pm

MCY

PHL

42h 23m2 stops

$2,256Air New Zealand

Sat, Jun 6 - Sun, Jun 14

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

PHL12:40 pmPhiladelphia

29h 50m

2 stops

SYD10:30 amSydney Kingsford Smith

Feb 4

SYD9:55 amSydney Kingsford Smith

29h 04m

2 stops

PHL10:59 pmPhiladelphia

$1,054

Find similar

Air New Zealand

Feb 11

PHL12:40 pmPhiladelphia

29h 50m

2 stops

SYD10:30 amSydney Kingsford Smith

Feb 22

SYD11:45 amSydney Kingsford Smith

27h 12m

2 stops

PHL10:57 pmPhiladelphia

$1,055

Find similar

Air New Zealand

Apr 6

PHL6:13 pmPhiladelphia

25h 52m

2 stops

MEL10:05 amMelbourne

Apr 22

MEL12:10 pmMelbourne

33h 35m

2 stops

PHL7:45 amPhiladelphia

$1,689

Find similar

United Airlines flights from Philadelphia to Australia

Our best United Airlines deals on Philadelphia to Australia flight tickets

United Airlines

Jan 20

PHL3:43 pmPhiladelphia

25h 32m

2 stops

SYD9:15 amSydney Kingsford Smith

Jan 27

SYD2:00 pmSydney Kingsford Smith

23h 52m

1 stop

PHL9:52 pmPhiladelphia

$1,063

Find similar

United Airlines

Jan 19

PHL12:40 pmPhiladelphia

28h 25m

2 stops

SYD9:05 amSydney Kingsford Smith

Jan 27

SYD12:10 pmSydney Kingsford Smith

25h 42m

1 stop

PHL9:52 pmPhiladelphia

$1,067

Find similar

United Airlines

Jan 17

PHL7:45 pmPhiladelphia

42h 35m

2 stops

SYD6:20 amSydney Kingsford Smith

Jan 31

SYD12:10 pmSydney Kingsford Smith

25h 26m

2 stops

PHL9:36 pmPhiladelphia

$1,143

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 1/24

2:30 pm-7:30 am

2 stops50h 00m

Brisbane

Sat 1/31

7:40 pm-7:01 am

1 stop26h 21m

$970

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Thu 1/22

2:30 pm-5:10 pm

2 stops35h 40m

Brisbane

Thu 1/29

12:10 pm-11:48 pm

1 stop26h 38m

$971

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/24

3:30 pm-7:45 am

2 stops26h 15m

Brisbane

Fri 4/10

10:00 am-2:46 pm

2 stops42h 46m

$1,170

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sun 1/25

7:50 am-8:45 am

2 stops33h 55m

Brisbane

Thu 2/5

10:45 am-2:47 pm

2 stops43h 02m

$1,173

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 12/25

6:25 pm-9:30 am

1 stop23h 35m

Adelaide

Mon 1/12

2:55 pm-9:52 pm

1 stop22h 27m

$1,438

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 12/25

6:25 pm-9:30 am

1 stop23h 35m

Adelaide

Mon 1/12

2:55 pm-9:38 am

2 stops34h 13m

$1,442

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Tue 1/13

4:44 pm-11:55 am

2 stops30h 11m

Perth

Sat 1/24

10:45 pm-9:00 am

1 stop47h 15m

$1,603

PhiladelphiaPerth

PHL - PER

PHLPER

Philadelphia

Tue 1/13

3:20 pm-11:55 am

2 stops31h 35m

Perth

Sat 1/24

10:45 pm-9:00 am

1 stop47h 15m

$1,662

PhiladelphiaMaroochydore

PHL - MCY

PHLMCY

Philadelphia

Sat 6/6

5:35 pm-4:05 pm

3 stops32h 30m

Maroochydore Sunshine Coast

Sun 6/14

4:50 pm-7:45 am

2 stops52h 55m

$2,025

PhiladelphiaMaroochydore

PHL - MCY

PHLMCY

Philadelphia

Sat 6/6

6:13 pm-4:05 pm

2 stops31h 52m

Maroochydore Sunshine Coast

Sun 6/14

12:35 pm-4:58 pm

2 stops42h 23m

$2,256

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 $1,093. 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 $1,428 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 $1,050 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 19% 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	23h 01m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 23h 01m

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 8,007 reviews	Search Delta flights
United Airlines	PriceFrom $859	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
Air Canada	PriceFrom $941	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $945	Free Cancellation	Rating 8.1 210 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $1,044	Free Cancellation	Rating 7.5 947 reviews	Search Qantas Airways flights
Air New Zealand	PriceFrom $1,220	Free Cancellation	Rating 8.0 552 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,296	Free Cancellation	Rating 7.4 3,676 reviews	Search Qatar Airways flights
American Airlines	PriceFrom $1,350	Free Cancellation	Rating 7.2 11,048 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.