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.

$939 Cheap Flights from Philadelphia to Sydney in 2026

Q: What is the typical price of a round-trip flight between Philadelphia and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $2,265 to $2,978. The lowest price recently found on this route was $1,404.

1 adult

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Find the cheapest flights from Philadelphia to Sydney

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

14:30 - 09:00

PHL

SYD

26h 30m1 stop

07:05 - 23:50

SYD

PHL

32h 45m2 stops

$1,404Qantas Airways

Mon, 9 Feb - Wed, 18 Feb

14:16 - 10:05

PHL

SYD

51h 49m2 stops

11:20 - 06:55

SYD

PHL

35h 35m1 stop

$1,438Qantas Airways

Mon, 23 Feb - Tue, 3 Mar

14:30 - 07:35

PHL

SYD

49h 05m2 stops

21:25 - 08:08

SYD

PHL

26h 43m1 stop

$1,448Qantas Airways

Sun, 8 Feb - Tue, 24 Feb

14:30 - 09:10

PHL

SYD

50h 40m2 stops

11:20 - 19:48

SYD

PHL

24h 28m1 stop

$1,453Qantas Airways

Sat, 7 Feb - Sat, 14 Feb

14:30 - 09:00

PHL

SYD

26h 30m1 stop

19:15 - 14:53

SYD

PHL

35h 38m2 stops

$1,486Qantas Airways

Thu, 22 Jan - Fri, 30 Jan

14:30 - 07:35

PHL

SYD

49h 05m2 stops

11:20 - 19:48

SYD

PHL

24h 28m1 stop

$1,490Qantas Airways

Thu, 5 Feb - Sat, 21 Feb

14:30 - 07:35

PHL

SYD

49h 05m2 stops

21:25 - 08:08

SYD

PHL

26h 43m1 stop

$1,501Qantas Airways

Sun, 8 Feb - Tue, 24 Feb

14:30 - 07:25

PHL

SYD

24h 55m1 stop

19:15 - 14:33

SYD

PHL

35h 18m2 stops

$1,502Qantas Airways

Tue, 27 Jan - Sat, 31 Jan

17:17 - 20:50

PHL

SYD

35h 33m2 stops

11:20 - 23:50

SYD

PHL

28h 30m1 stop

$1,555Qantas Airways

Thu, 26 Feb - Thu, 5 Mar

14:30 - 09:00

PHL

SYD

26h 30m1 stop

11:20 - 19:48

SYD

PHL

24h 28m1 stop

$1,562Qantas Airways

Mon, 9 Feb - Wed, 18 Feb

Delta flights from Philadelphia to Sydney

Our best Delta deals on Philadelphia to Sydney flight tickets

Delta

28 Jan

PHL10:30Philadelphia

30h 00m

2 stops

SYD08:30Sydney Kingsford Smith

10 Feb

SYD10:40Sydney Kingsford Smith

22h 45m

2 stops

PHL17:25Philadelphia

$1,599

Delta

24 Jan

PHL06:00Philadelphia

32h 50m

2 stops

SYD06:50Sydney Kingsford Smith

9 Feb

SYD10:40Sydney Kingsford Smith

23h 17m

2 stops

PHL17:57Philadelphia

$1,711

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways

9 Feb

PHL14:30Philadelphia

26h 30m

1 stop

SYD09:00Sydney Kingsford Smith

18 Feb

SYD07:05Sydney Kingsford Smith

32h 45m

2 stops

PHL23:50Philadelphia

$1,404

Qantas Airways

23 Feb

PHL14:16Philadelphia

51h 49m

2 stops

SYD10:05Sydney Kingsford Smith

3 Mar

SYD11:20Sydney Kingsford Smith

35h 35m

1 stop

PHL06:55Philadelphia

$1,438

Qantas Airways

8 Feb

PHL14:30Philadelphia

49h 05m

2 stops

SYD07:35Sydney Kingsford Smith

24 Feb

SYD21:25Sydney Kingsford Smith

26h 43m

1 stop

PHL08:08Philadelphia

$1,448

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/2

14:30-09:00

1 stop26h 30m

Sydney Kingsford Smith

Wed 18/2

07:05-23:50

2 stops32h 45m

$1,404

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 23/2

14:16-10:05

2 stops51h 49m

Sydney Kingsford Smith

Tue 3/3

11:20-06:55

1 stop35h 35m

$1,438

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 8/2

14:30-07:35

2 stops49h 05m

Sydney Kingsford Smith

Tue 24/2

21:25-08:08

1 stop26h 43m

$1,448

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 7/2

14:30-09:10

2 stops50h 40m

Sydney Kingsford Smith

Sat 14/2

11:20-19:48

1 stop24h 28m

$1,453

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 22/1

14:30-09:00

1 stop26h 30m

Sydney Kingsford Smith

Fri 30/1

19:15-14:53

2 stops35h 38m

$1,486

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 5/2

14:30-07:35

2 stops49h 05m

Sydney Kingsford Smith

Sat 21/2

11:20-19:48

1 stop24h 28m

$1,490

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 8/2

14:30-07:35

2 stops49h 05m

Sydney Kingsford Smith

Tue 24/2

21:25-08:08

1 stop26h 43m

$1,501

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 27/1

14:30-07:25

1 stop24h 55m

Sydney Kingsford Smith

Sat 31/1

19:15-14:33

2 stops35h 18m

$1,502

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 26/2

17:17-20:50

2 stops35h 33m

Sydney Kingsford Smith

Thu 5/3

11:20-23:50

1 stop28h 30m

$1,555

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/2

14:30-09:00

1 stop26h 30m

Sydney Kingsford Smith

Wed 18/2

11:20-19:48

1 stop24h 28m

$1,562

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 typical price of a round-trip flight between Philadelphia and Sydney?

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 $1,564. 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 $1,728.

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 $2,131 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 $1,569 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	26h 05m
Direct flights	None

The fastest flight from Philadelphia to Sydney takes 26h 05m

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 26h 05m.
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

Bondi Beach

Coogee

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.