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

Qantas Airways, Delta, 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 40% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 14 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 February 2026, 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.

$521 Cheap Flights from Philadelphia to Australia in 2026

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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.

2:16 pm - 9:00 am

PHL

SYD

26h 44m

1 stop

5:50 pm - 2:37 pm

SYD

PHL

35h 47m

2 stops

$955Qantas Airways

Tue, Mar 3 - Wed, Mar 11

5:17 pm - 5:10 pm

PHL

BNE

33h 53m

2 stops

8:35 pm - 5:52 am

BNE

PHL

23h 17m

1 stop

$969Qantas Airways

Tue, Mar 24 - Fri, Apr 10

2:16 pm - 9:00 am

PHL

SYD

26h 44m

1 stop

5:50 pm - 2:37 pm

SYD

PHL

36h 47m

2 stops

$973Qantas Airways

Tue, Feb 17 - Wed, Feb 25

5:20 pm - 9:00 am

PHL

SYD

23h 40m

2 stops

11:20 am - 7:42 pm

SYD

PHL

23h 22m

1 stop

$1,043American Airlines

Sun, Mar 1 - Mon, Mar 16

12:55 pm - 6:30 am

PHL

BNE

26h 35m

1 stop

7:40 pm - 5:51 am

BNE

PHL

24h 11m

1 stop

$1,351American Airlines

Mon, Mar 2 - Wed, Mar 11

5:17 pm - 6:45 pm

PHL

MEL

33h 28m

2 stops

7:00 am - 9:44 pm

MEL

PHL

30h 44m

2 stops

$1,355Fiji Airways

Tue, Feb 24 - Sat, Feb 28

4:05 pm - 2:55 pm

PHL

CNS

31h 50m

3 stops

6:00 am - 10:44 pm

CNS

PHL

31h 44m

3 stops

$2,403Air Canada

Wed, Feb 25 - Fri, Mar 6

6:21 pm - 1:35 pm

PHL

CBR

28h 14m

2 stops

8:10 am - 8:15 am

CBR

PHL

38h 05m

2 stops

$2,725United Airlines

Mon, Mar 30 - Mon, Apr 6

6:21 pm - 12:15 pm

PHL

OOL

27h 54m

2 stops

7:05 am - 8:15 am

OOL

PHL

39h 10m

2 stops

$2,745United Airlines

Mon, Mar 30 - Mon, Apr 6

10:35 am - 10:40 am

PHL

OOL

34h 05m

3 stops

6:00 am - 10:46 pm

OOL

PHL

30h 46m

3 stops

$2,855Air Canada

Thu, Aug 13 - Sun, Aug 30

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets

Qantas Airways

Feb 21

PHL5:05 pmPhiladelphia

47h 15m

2 stops

MEL8:20 amMelbourne

Mar 4

MEL12:00 pmMelbourne

23h 48m

1 stop

PHL7:48 pmPhiladelphia

$952

Qantas Airways

Mar 3

PHL2:16 pmPhiladelphia

26h 44m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 11

SYD5:50 pmSydney Kingsford Smith

35h 47m

2 stops

PHL2:37 pmPhiladelphia

$955

Qantas Airways

Mar 24

PHL5:17 pmPhiladelphia

33h 53m

2 stops

BNE5:10 pmBrisbane

Apr 10

BNE8:35 pmBrisbane

23h 17m

1 stop

PHL5:52 amPhiladelphia

$969

American Airlines flights from Philadelphia to Australia

Our best American Airlines deals on Philadelphia to Australia flight tickets

American Airlines

Mar 1

PHL5:20 pmPhiladelphia

23h 40m

2 stops

SYD9:00 amSydney Kingsford Smith

Mar 16

SYD11:20 amSydney Kingsford Smith

23h 22m

1 stop

PHL7:42 pmPhiladelphia

$1,043

American Airlines

Mar 1

PHL2:16 pmPhiladelphia

26h 44m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 8

SYD11:20 amSydney Kingsford Smith

26h 39m

1 stop

PHL9:59 pmPhiladelphia

$1,052

American Airlines

Mar 3

PHL5:20 pmPhiladelphia

23h 40m

2 stops

SYD9:00 amSydney Kingsford Smith

Mar 11

SYD11:20 amSydney Kingsford Smith

23h 26m

2 stops

PHL7:46 pmPhiladelphia

$1,056

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 3/3

2:16 pm-9:00 am

1 stop26h 44m

Sydney Kingsford Smith

Wed 3/11

5:50 pm-2:37 pm

2 stops35h 47m

$955

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Tue 3/24

5:17 pm-5:10 pm

2 stops33h 53m

Brisbane

Fri 4/10

8:35 pm-5:52 am

1 stop23h 17m

$969

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 2/17

2:16 pm-9:00 am

1 stop26h 44m

Sydney Kingsford Smith

Wed 2/25

5:50 pm-2:37 pm

2 stops36h 47m

$973

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/1

5:20 pm-9:00 am

2 stops23h 40m

Sydney Kingsford Smith

Mon 3/16

11:20 am-7:42 pm

1 stop23h 22m

$1,043

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Mon 3/2

12:55 pm-6:30 am

1 stop26h 35m

Brisbane

Wed 3/11

7:40 pm-5:51 am

1 stop24h 11m

$1,351

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Tue 2/24

5:17 pm-6:45 pm

2 stops33h 28m

Melbourne

Sat 2/28

7:00 am-9:44 pm

2 stops30h 44m

$1,355

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Wed 2/25

4:05 pm-2:55 pm

3 stops31h 50m

Cairns

Fri 3/6

6:00 am-10:44 pm

3 stops31h 44m

$2,403

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Mon 3/30

6:21 pm-1:35 pm

2 stops28h 14m

Canberra

Mon 4/6

8:10 am-8:15 am

2 stops38h 05m

$2,725

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Mon 3/30

6:21 pm-12:15 pm

2 stops27h 54m

Coolangatta Gold Coast

Mon 4/6

7:05 am-8:15 am

2 stops39h 10m

$2,745

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Thu 8/13

10:35 am-10:40 am

3 stops34h 05m

Coolangatta Gold Coast

Sun 8/30

6:00 am-10:46 pm

3 stops30h 46m

$2,855

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 April is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $1,045. If you aren’t able to travel during the month of April, then book flights to Australia from Philadelphia during February instead. Flights to Australia in February, while not as cheap as those in April, still average around $1,071.

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 $1,452 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 $991 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 22% 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	22h 32m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 22h 32m

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 February 2026, 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 8,200 reviews	Search Delta flights
United Airlines	PriceFrom $539	Free Cancellation	Rating 7.4 9,291 reviews	Search United Airlines flights
Air Canada	PriceFrom $765	Free Cancellation	Rating 7.1 10,717 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $945	Free Cancellation	Rating 7.5 989 reviews	Search Qantas Airways flights
Fiji Airways	PriceFrom $954	Free Cancellation	Rating 8.0 225 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $1,198	Free Cancellation	Rating 7.2 11,288 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,220	Free Cancellation	Rating 8.0 582 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,298	Free Cancellation	Rating 7.4 3,734 reviews	Search Qatar 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.