Which airlines fly to Sydney?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Sydney 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 travelling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney 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 Sydney Kingsford Smith Airport?

Prices for flights from Philadelphia Airport to Sydney Kingsford Smith Airport are updated daily.

How old do you have to be to fly from Philadelphia Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport 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 licence 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.

$754 Cheap Flights from Philadelphia to Sydney in 2026

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise 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 Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:16 - 20:50

PHL

SYD

38h 34m

2 stops

11:20 - 19:42

SYD

PHL

23h 22m

1 stop

$1,400Qantas Airways

Mon, 2 Mar - Mon, 16 Mar

14:16 - 09:10

PHL

SYD

50h 54m

2 stops

11:20 - 19:42

SYD

PHL

23h 22m

1 stop

$1,404Qantas Airways

Mon, 2 Mar - Mon, 16 Mar

14:16 - 09:00

PHL

SYD

26h 44m

1 stop

11:20 - 19:42

SYD

PHL

23h 22m

1 stop

$1,509Qantas Airways

Sun, 1 Mar - Tue, 24 Mar

14:16 - 09:00

PHL

SYD

26h 44m

1 stop

11:20 - 19:48

SYD

PHL

24h 28m

1 stop

$1,511Qantas Airways

Wed, 25 Feb - Mon, 2 Mar

11:35 - 06:55

PHL

SYD

27h 20m

1 stop

11:20 - 19:42

SYD

PHL

23h 22m

1 stop

$1,512Qantas Airways

Mon, 2 Mar - Mon, 16 Mar

19:00 - 09:00

PHL

SYD

23h 00m

1 stop

13:05 - 19:25

SYD

PHL

21h 20m

1 stop

$1,514Qantas Airways

Wed, 18 Mar - Wed, 25 Mar

10:45 - 09:00

PHL

SYD

30h 15m

1 stop

11:20 - 19:48

SYD

PHL

24h 28m

2 stops

$1,519American Airlines

Mon, 23 Feb - Tue, 3 Mar

15:55 - 09:00

PHL

SYD

25h 05m

2 stops

11:20 - 17:44

SYD

PHL

22h 24m

2 stops

$1,521American Airlines

Mon, 16 Feb - Tue, 24 Feb

06:10 - 08:30

PHL

SYD

34h 20m

2 stops

13:15 - 23:59

SYD

PHL

25h 44m

2 stops

$1,545Delta

Mon, 2 Mar - Mon, 16 Mar

10:37 - 06:50

PHL

SYD

28h 13m

2 stops

10:40 - 04:41

SYD

PHL

34h 01m

2 stops

$1,547Delta

Sun, 1 Mar - Sun, 8 Mar

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways

2 Mar

PHL14:16Philadelphia

38h 34m

2 stops

SYD20:50Sydney Kingsford Smith

16 Mar

SYD11:20Sydney Kingsford Smith

23h 22m

1 stop

PHL19:42Philadelphia

$1,400

Qantas Airways

2 Mar

PHL14:16Philadelphia

50h 54m

2 stops

SYD09:10Sydney Kingsford Smith

16 Mar

SYD11:20Sydney Kingsford Smith

23h 22m

1 stop

PHL19:42Philadelphia

$1,404

Qantas Airways

1 Mar

PHL14:16Philadelphia

26h 44m

1 stop

SYD09:00Sydney Kingsford Smith

24 Mar

SYD11:20Sydney Kingsford Smith

23h 22m

1 stop

PHL19:42Philadelphia

$1,509

Air Canada flights from Philadelphia to Sydney

Our best Air Canada deals on Philadelphia to Sydney flight tickets

Air Canada

12 May

PHL10:05Philadelphia

31h 15m

2 stops

SYD07:20Sydney Kingsford Smith

27 May

SYD09:20Sydney Kingsford Smith

26h 13m

2 stops

PHL21:33Philadelphia

$1,584

Air Canada

4 Mar

PHL15:30Philadelphia

26h 05m

2 stops

SYD09:35Sydney Kingsford Smith

11 Mar

SYD10:20Sydney Kingsford Smith

27h 24m

2 stops

PHL22:44Philadelphia

$1,591

Air Canada

2 Mar

PHL15:30Philadelphia

50h 05m

3 stops

SYD09:35Sydney Kingsford Smith

16 Mar

SYD10:25Sydney Kingsford Smith

43h 22m

2 stops

PHL14:47Philadelphia

$1,596

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/3

14:16-20:50

2 stops38h 34m

Sydney Kingsford Smith

Mon 16/3

11:20-19:42

1 stop23h 22m

$1,400

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/3

14:16-09:10

2 stops50h 54m

Sydney Kingsford Smith

Mon 16/3

11:20-19:42

1 stop23h 22m

$1,404

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 1/3

14:16-09:00

1 stop26h 44m

Sydney Kingsford Smith

Tue 24/3

11:20-19:42

1 stop23h 22m

$1,509

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 25/2

14:16-09:00

1 stop26h 44m

Sydney Kingsford Smith

Mon 2/3

11:20-19:48

1 stop24h 28m

$1,511

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/3

11:35-06:55

1 stop27h 20m

Sydney Kingsford Smith

Mon 16/3

11:20-19:42

1 stop23h 22m

$1,512

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 18/3

19:00-09:00

1 stop23h 00m

Sydney Kingsford Smith

Wed 25/3

13:05-19:25

1 stop21h 20m

$1,514

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 23/2

10:45-09:00

1 stop30h 15m

Sydney Kingsford Smith

Tue 3/3

11:20-19:48

2 stops24h 28m

$1,519

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 16/2

15:55-09:00

2 stops25h 05m

Sydney Kingsford Smith

Tue 24/2

11:20-17:44

2 stops22h 24m

$1,521

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/3

06:10-08:30

2 stops34h 20m

Sydney Kingsford Smith

Mon 16/3

13:15-23:59

2 stops25h 44m

$1,545

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 1/3

10:37-06:50

2 stops28h 13m

Sydney Kingsford Smith

Sun 8/3

10:40-04:41

2 stops34h 01m

$1,547

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 Sydney

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 Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Philadelphia, with most prices found around $1,505. If you aren’t able to travel to Sydney during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,754.

How far in advance should I book a flight to Sydney?

You are more likely to see cheaper flights to Sydney from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $2,073 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Philadelphia for as low as $1,511 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 63% on your flight if you consider stops on a Philadelphia to Sydney flight.

How have Philadelphia to Sydney flight prices changed over time?

When to book flights from Philadelphia to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Philadelphia to Sydney (PHL to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Sydney

Fastest flight time	23h 22m
Direct flights	None

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

There are no direct flights from Philadelphia to Sydney. There are no popular flight routes from Philadelphia to Sydney.

Search flight deals

How far is Philadelphia to Sydney Kingsford Smith by plane?
The straight-line distance from Philadelphia to Sydney Kingsford Smith is 15874.2 km. In terms of flight time, this usually takes a little over 23h 22m.
When did momondo last update prices for flights from Philadelphia Airport to Sydney Kingsford Smith Airport?
Prices for flights from Philadelphia Airport to Sydney Kingsford Smith Airport are updated daily.
How old do you have to be to fly from Philadelphia Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport 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 licence 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.

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Leura

Manly

Coogee

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Sydney for you.

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

Yes. All flights to Sydney from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Sydney 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 Sydney right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sydney 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.