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

Delta, Qantas Airways, and United Airlines 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 May 2026, there are 7 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

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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.

3:29 pm - 7:05 am

PHL

SYD

25h 36m

1 stop

9:10 am - 6:39 pm

SYD

PHL

23h 29m

1 stop

$1,221Qantas Airways

Wed, Jun 24 - Wed, Jul 15

3:20 pm - 9:35 am

PHL

SYD

26h 15m

2 stops

11:20 am - 3:51 pm

SYD

PHL

44h 31m

2 stops

$1,222Air Canada

Mon, Nov 2 - Sun, Nov 8

5:45 pm - 7:20 pm

PHL

MEL

35h 35m

2 stops

7:30 am - 10:47 pm

MEL

PHL

29h 17m

2 stops

$1,310Multiple Airlines

Sat, Aug 8 - Sat, Aug 15

8:35 am - 6:30 am

PHL

BNE

30h 55m

1 stop

9:15 am - 5:55 pm

BNE

PHL

23h 40m

2 stops

$1,315American Airlines

Fri, Nov 20 - Sun, Nov 29

5:38 pm - 7:20 pm

PHL

MEL

35h 42m

2 stops

7:30 am - 10:57 pm

MEL

PHL

29h 27m

2 stops

$1,319Multiple Airlines

Sat, Jul 4 - Sat, Jul 11

3:35 pm - 6:45 am

PHL

MEL

25h 10m

1 stop

9:45 am - 11:39 pm

MEL

PHL

27h 54m

1 stop

$1,384American Airlines

Sat, Jul 4 - Sat, Jul 11

9:25 am - 8:15 am

PHL

MEL

32h 50m

1 stop

10:55 am - 1:29 am

MEL

PHL

28h 34m

1 stop

$1,403United Airlines

Fri, Jun 12 - Thu, Jun 18

11:38 am - 8:15 am

PHL

MEL

30h 37m

2 stops

10:55 am - 5:31 am

MEL

PHL

32h 36m

2 stops

$1,407United Airlines

Fri, Jun 12 - Thu, Jun 18

6:23 pm - 5:15 pm

PHL

OOL

32h 52m

2 stops

7:00 am - 10:43 pm

OOL

PHL

29h 43m

3 stops

$2,659Air New Zealand

Sat, Jul 11 - Sat, Jul 18

6:23 pm - 4:30 pm

PHL

MCY

32h 07m

3 stops

5:15 pm - 1:23 am

MCY

PHL

46h 08m

3 stops

$2,920Air New Zealand

Thu, Jul 9 - Thu, Jul 16

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

Air Canada

May 30

PHL3:25 pmPhiladelphia

49h 55m

2 stops

SYD7:20 amSydney Kingsford Smith

Jun 14

SYD9:20 amSydney Kingsford Smith

43h 28m

2 stops

PHL2:48 pmPhiladelphia

$1,217

Air Canada

Nov 2

PHL3:20 pmPhiladelphia

26h 15m

2 stops

SYD9:35 amSydney Kingsford Smith

Nov 8

SYD11:20 amSydney Kingsford Smith

44h 31m

2 stops

PHL3:51 pmPhiladelphia

$1,222

Air Canada

Oct 18

PHL10:05 amPhiladelphia

31h 15m

2 stops

SYD8:20 amSydney Kingsford Smith

Oct 27

SYD10:20 amSydney Kingsford Smith

43h 24m

3 stops

PHL2:44 pmPhiladelphia

$1,225

Qantas Airways flights from Philadelphia to Australia

Our best Qantas Airways deals on Philadelphia to Australia flight tickets

Qantas Airways

Jun 24

PHL3:29 pmPhiladelphia

25h 36m

1 stop

SYD7:05 amSydney Kingsford Smith

Jul 15

SYD9:10 amSydney Kingsford Smith

23h 29m

1 stop

PHL6:39 pmPhiladelphia

$1,221

Qantas Airways

Oct 20

PHL5:43 pmPhiladelphia

23h 22m

1 stop

SYD8:05 amSydney Kingsford Smith

Oct 30

SYD11:15 amSydney Kingsford Smith

22h 19m

1 stop

PHL6:34 pmPhiladelphia

$1,265

Qantas Airways

Nov 8

PHL3:55 pmPhiladelphia

25h 05m

1 stop

SYD9:00 amSydney Kingsford Smith

Nov 18

SYD11:15 amSydney Kingsford Smith

24h 48m

1 stop

PHL8:03 pmPhiladelphia

$1,274

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 6/24

3:29 pm-7:05 am

1 stop25h 36m

Sydney Kingsford Smith

Wed 7/15

9:10 am-6:39 pm

1 stop23h 29m

$1,221

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 11/2

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

Sun 11/8

11:20 am-3:51 pm

2 stops44h 31m

$1,222

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 8/8

5:45 pm-7:20 pm

2 stops35h 35m

Melbourne

Sat 8/15

7:30 am-10:47 pm

2 stops29h 17m

$1,310

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Fri 11/20

8:35 am-6:30 am

1 stop30h 55m

Brisbane

Sun 11/29

9:15 am-5:55 pm

2 stops23h 40m

$1,315

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 7/4

5:38 pm-7:20 pm

2 stops35h 42m

Melbourne

Sat 7/11

7:30 am-10:57 pm

2 stops29h 27m

$1,319

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Sat 7/4

3:35 pm-6:45 am

1 stop25h 10m

Melbourne

Sat 7/11

9:45 am-11:39 pm

1 stop27h 54m

$1,384

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 6/12

9:25 am-8:15 am

1 stop32h 50m

Melbourne

Thu 6/18

10:55 am-1:29 am

1 stop28h 34m

$1,403

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Fri 6/12

11:38 am-8:15 am

2 stops30h 37m

Melbourne

Thu 6/18

10:55 am-5:31 am

2 stops32h 36m

$1,407

PhiladelphiaCoolangatta

PHL - OOL

PHLOOL

Philadelphia

Sat 7/11

6:23 pm-5:15 pm

2 stops32h 52m

Coolangatta Gold Coast

Sat 7/18

7:00 am-10:43 pm

3 stops29h 43m

$2,659

PhiladelphiaMaroochydore

PHL - MCY

PHLMCY

Philadelphia

Thu 7/9

6:23 pm-4:30 pm

3 stops32h 07m

Maroochydore Sunshine Coast

Thu 7/16

5:15 pm-1:23 am

3 stops46h 08m

$2,920

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 August is, on average, the cheapest month to fly to Australia from Philadelphia, with most prices found around $250. If you aren’t able to travel during the month of August, then book flights to Australia from Philadelphia during November instead. Flights to Australia in November, while not as cheap as those in August, still average around $258.

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 $1,471 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 $1,088 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 24% 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 23m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 22h 23m

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 May 2026, there are 7 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
Air Canada	PriceFrom $765	Free Cancellation	Rating 7.1 11,095 reviews	Search Air Canada flights
United Airlines	PriceFrom $843	Free Cancellation	Rating 7.4 9,757 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $945	Free Cancellation	Rating 7.5 1,043 reviews	Search Qantas Airways flights
Fiji Airways	PriceFrom $954	Free Cancellation	Rating 8.1 243 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $1,198	Free Cancellation	Rating 7.1 11,641 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,418	Free Cancellation	Rating 8.0 648 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,447	Free Cancellation	Rating 7.4 3,726 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.