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

Delta, Cathay Pacific, and Qantas Airways are the most popular carriers operating from Philadelphia to Australia

Which 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 43% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 3 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 refresh daily.

How old do you have to be to fly from Philadelphia Airport to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Australia.

What documentation or ID do you need to fly to Australia?

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$748 Cheap Flights from Philadelphia to Australia in 2026

1 adult

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Find the cheapest flights from Philadelphia to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:31 - 07:00

PHL

SYD

27h 29m

2 stops

10:20 - 01:23

SYD

PHL

29h 03m

1 stop

$1,403United Airlines

Tue, 30 Jun - Mon, 27 Jul

14:31 - 06:50

PHL

SYD

26h 19m

2 stops

09:15 - 19:51

SYD

PHL

24h 36m

2 stops

$1,404Delta

Wed, 5 Aug - Wed, 19 Aug

16:14 - 07:00

PHL

SYD

48h 46m

2 stops

09:30 - 00:59

SYD

PHL

29h 29m

2 stops

$1,422United Airlines

Sat, 30 May - Sun, 14 Jun

18:23 - 11:05

PHL

ADL

27h 12m

2 stops

06:05 - 05:31

ADL

PHL

36h 56m

2 stops

$1,643Multiple Airlines

Sun, 14 Jun - Wed, 8 Jul

18:23 - 11:05

PHL

ADL

27h 12m

2 stops

06:00 - 17:17

ADL

PHL

24h 47m

2 stops

$1,652Air New Zealand

Sun, 14 Jun - Wed, 8 Jul

18:23 - 11:05

PHL

ADL

27h 12m

2 stops

06:05 - 01:23

ADL

PHL

32h 48m

2 stops

$1,711EVA Air

Sun, 14 Jun - Thu, 9 Jul

20:30 - 04:55

PHL

MEL

42h 25m

1 stop

16:10 - 09:00

MEL

PHL

31h 50m

1 stop

$1,714Qatar Airways

Mon, 14 Sep - Thu, 22 Oct

13:04 - 11:05

PHL

BNE

32h 01m

2 stops

18:15 - 05:43

BNE

PHL

25h 28m

2 stops

$1,760Multiple Airlines

Sat, 25 Jul - Tue, 4 Aug

20:30 - 08:40

PHL

CNS

46h 10m

2 stops

19:50 - 09:00

CNS

PHL

51h 10m

2 stops

$2,426Qatar Airways

Thu, 15 Oct - Mon, 19 Oct

09:25 - 16:00

PHL

CBR

40h 35m

3 stops

08:55 - 22:29

CBR

PHL

27h 34m

3 stops

$2,814Air New Zealand

Wed, 3 Jun - Wed, 10 Jun

Delta flights from Philadelphia to Australia

Our best Delta deals on Philadelphia to Australia flight tickets

Delta

5 Aug

PHL14:31Philadelphia

26h 19m

2 stops

SYD06:50Sydney Kingsford Smith

19 Aug

SYD09:15Sydney Kingsford Smith

24h 36m

2 stops

PHL19:51Philadelphia

$1,404

Delta

27 June

PHL15:38Philadelphia

49h 12m

2 stops

SYD06:50Sydney Kingsford Smith

28 July

SYD09:15Sydney Kingsford Smith

22h 49m

2 stops

PHL18:04Philadelphia

$1,424

Delta

28 June

PHL17:22Philadelphia

47h 28m

2 stops

SYD06:50Sydney Kingsford Smith

25 July

SYD09:15Sydney Kingsford Smith

37h 26m

2 stops

PHL08:41Philadelphia

$1,491

Air Canada flights from Philadelphia to Australia

Our best Air Canada deals on Philadelphia to Australia flight tickets

Air Canada

13 May

PHL10:05Philadelphia

31h 00m

2 stops

BNE07:05Brisbane

24 May

BNE10:00Brisbane

33h 31m

2 stops

PHL05:31Philadelphia

$1,722

Air Canada

13 May

PHL10:05Philadelphia

31h 00m

2 stops

BNE07:05Brisbane

24 May

BNE10:00Brisbane

33h 31m

2 stops

PHL05:31Philadelphia

$1,725

Air Canada

7 Sept

PHL10:05Philadelphia

31h 00m

2 stops

BNE07:05Brisbane

7 Oct

BNE10:00Brisbane

25h 32m

2 stops

PHL21:32Philadelphia

$1,733

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 30/6

13:31-07:00

2 stops27h 29m

Sydney Kingsford Smith

Mon 27/7

10:20-01:23

1 stop29h 03m

$1,403

Fastest return journey

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 5/8

14:31-06:50

2 stops26h 19m

Sydney Kingsford Smith

Wed 19/8

09:15-19:51

2 stops24h 36m

$1,404

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 30/5

16:14-07:00

2 stops48h 46m

Sydney Kingsford Smith

Sun 14/6

09:30-00:59

2 stops29h 29m

$1,422

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 14/6

18:23-11:05

2 stops27h 12m

Adelaide

Wed 8/7

06:05-05:31

2 stops36h 56m

$1,643

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 14/6

18:23-11:05

2 stops27h 12m

Adelaide

Wed 8/7

06:00-17:17

2 stops24h 47m

$1,652

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 14/6

18:23-11:05

2 stops27h 12m

Adelaide

Thu 9/7

06:05-01:23

2 stops32h 48m

$1,711

PhiladelphiaMelbourne

PHL - MEL

PHLMEL

Philadelphia

Mon 14/9

20:30-04:55

1 stop42h 25m

Melbourne

Thu 22/10

16:10-09:00

1 stop31h 50m

$1,714

PhiladelphiaBrisbane

PHL - BNE

PHLBNE

Philadelphia

Sat 25/7

13:04-11:05

2 stops32h 01m

Brisbane

Tue 4/8

18:15-05:43

2 stops25h 28m

$1,760

PhiladelphiaCairns

PHL - CNS

PHLCNS

Philadelphia

Thu 15/10

20:30-08:40

2 stops46h 10m

Cairns

Mon 19/10

19:50-09:00

2 stops51h 10m

$2,426

PhiladelphiaCanberra

PHL - CBR

PHLCBR

Philadelphia

Wed 3/6

09:25-16:00

3 stops40h 35m

Canberra

Wed 10/6

08:55-22:29

3 stops27h 34m

$2,814

Flights are sorted by cheapest return 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?

In general, August is the cheapest month to fly from Philadelphia to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $346. If you don’t want to visit Australia in August, then you should wait until November to fly from Philadelphia, when ticket prices are also cheap, with an average price of $357.

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 $2,049 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Philadelphia for as low as $1,570 on momondo.

Can stopping save me money on Philadelphia to Australia flights?

You could potentially save up to 54% 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 38m
Direct flights	None

The fastest flight from Philadelphia to Australia takes 22h 38m

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 refresh daily.
How old do you have to be to fly from Philadelphia Airport to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Australia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Philadelphia to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Philadelphia to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Philadelphia to Australia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Australia.

I’m not ready to book a flight from Philadelphia to Australia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Australia from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.