Which airport is the most popular layover for flights between Philadelphia and Sydney?

Los Angeles (LAX) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Philadelphia to Sydney?

Flights via Dallas (DFW) offer the lowest average round-trip price of $1,055.

Which layover airport has the shortest connection time from Philadelphia to Sydney?

Dallas (DFW) has the shortest average layover time for this route: 1h 59m.

Which layover airport has the shortest travel time from Philadelphia to Sydney?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 22h 38m.

What is the cheapest airline that flies from Philadelphia to Sydney Kingsford Smith?

Virgin Australia is the most popular carrier operating from Philadelphia to Sydney Kingsford Smith

What airlines fly to Sydney?

Qantas Airways, United Airlines and Air Canada 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 46% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 9 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 refreshed on a daily basis.

How many operators does momondo search for flights from Philadelphia Airport to Sydney Kingsford Smith Airport?

As of November 2026, there are 5 operators available to choose from for flights from Philadelphia Airport to Sydney Kingsford Smith Airport.

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 layovers. 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$755 Cheap Flights from Philadelphia to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

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8:45 pm - 6:20 pmPHL Philadelphia-SYD Sydney Kingsford Smith

29h 35m1 stop Doha Hamad Intl

10:10 pm - 2:50 pmSYD Sydney Kingsford Smith-PHL Philadelphia

32h 40m1 stop Doha Hamad Intl

$1,267Qatar Airways

Mon, Feb 15 - Wed, Mar 3

8:45 pm - 6:20 pmPHL Philadelphia-SYD Sydney Kingsford Smith

29h 35m1 stop Doha Hamad Intl

3:50 pm - 2:50 pmSYD Sydney Kingsford Smith-PHL Philadelphia

39h 00m1 stop Doha Hamad Intl

$1,270Qatar Airways

Mon, Feb 1 - Mon, Feb 22

4:00 pm - 10:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

26h 20m2 stops Los Angeles Brisbane

9:25 pm - 7:29 amSYD Sydney Kingsford Smith-PHL Philadelphia

26h 04m1 stop San Francisco

$1,306Qantas Airways

Mon, Feb 15 - Wed, Mar 3

12:38 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

26h 17m1 stop Dallas/Fort Worth

10:25 am - 8:29 pmSYD Sydney Kingsford Smith-PHL Philadelphia

26h 04m2 stops Brisbane Los Angeles

$1,316Qantas Airways

Wed, Feb 24 - Wed, Mar 10

9:00 am - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 35m2 stops San Francisco Auckland Intl

11:50 am - 5:08 pmSYD Sydney Kingsford Smith-PHL Philadelphia

45h 18m2 stops Auckland Intl San Francisco

$1,378Air New Zealand

Tue, Jan 26 - Mon, Feb 8

7:45 pm - 10:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

46h 50m2 stops Houston George Bush Intcntl Auckland Intl

9:55 am - 10:28 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 33m2 stops Auckland Intl Houston George Bush Intcntl

$1,385Air New Zealand

Sat, Mar 6 - Tue, Mar 16

4:00 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 00m2 stops Las Vegas Harry Reid Intl Los Angeles

1:05 pm - 10:31 pmSYD Sydney Kingsford Smith-PHL Philadelphia

24h 26m2 stops Dallas/Fort Worth Raleigh-Durham

$1,499American Airlines

Wed, Mar 10 - Wed, Mar 24

4:05 pm - 6:25 amPHL Philadelphia-SYD Sydney Kingsford Smith

22h 20m1 stop San Francisco

11:20 am - 11:56 pmSYD Sydney Kingsford Smith-PHL Philadelphia

28h 36m1 stop Los Angeles

$1,544American Airlines

Wed, Feb 17 - Wed, Feb 24

8:10 am - 7:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 50m1 stop Houston George Bush Intcntl

10:20 am - 9:20 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 00m1 stop San Francisco

$1,548United Airlines

Mon, Mar 22 - Mon, Apr 5

6:13 pm - 9:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 07m1 stop San Francisco

10:20 am - 9:20 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 00m1 stop San Francisco

$1,548United Airlines

Tue, Mar 23 - Mon, Apr 5

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Qatar Airways flights from Philadelphia to Sydney

Our best Qatar Airways deals on Philadelphia to Sydney flight tickets

Qatar Airways

Feb 15

PHL8:45 pmPhiladelphia

29h 35m

1 stop

SYD6:20 pmSydney Kingsford Smith

Mar 3

SYD10:10 pmSydney Kingsford Smith

32h 40m

1 stop

PHL2:50 pmPhiladelphia

$1,267

Qatar Airways

Feb 1

PHL8:45 pmPhiladelphia

29h 35m

1 stop

SYD6:20 pmSydney Kingsford Smith

Feb 22

SYD3:50 pmSydney Kingsford Smith

39h 00m

1 stop

PHL2:50 pmPhiladelphia

$1,270

Qatar Airways

Mar 23

PHL9:45 pmPhiladelphia

29h 35m

1 stop

SYD6:20 pmSydney Kingsford Smith

Apr 6

SYD3:50 pmSydney Kingsford Smith

37h 15m

1 stop

PHL3:05 pmPhiladelphia

$1,282

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways

Feb 15

PHL4:00 pmPhiladelphia

26h 20m

2 stops

SYD10:20 amSydney Kingsford Smith

Mar 3

SYD9:25 pmSydney Kingsford Smith

26h 04m

1 stop

PHL7:29 amPhiladelphia

$1,306

Qantas Airways

Feb 24

PHL12:38 pmPhiladelphia

26h 17m

1 stop

SYD6:55 amSydney Kingsford Smith

Mar 10

SYD10:25 amSydney Kingsford Smith

26h 04m

2 stops

PHL8:29 pmPhiladelphia

$1,316

Qantas Airways

Dec 8

PHL2:46 pmPhiladelphia

24h 09m

1 stop

SYD6:55 amSydney Kingsford Smith

Dec 15

SYD11:05 amSydney Kingsford Smith

25h 30m

2 stops

PHL8:35 pmPhiladelphia

$1,343

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 2/15

8:45 pm-6:20 pm

1 stop29h 35m

Sydney Kingsford Smith

Wed 3/3

10:10 pm-2:50 pm

1 stop32h 40m

$1,267

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 2/1

8:45 pm-6:20 pm

1 stop29h 35m

Sydney Kingsford Smith

Mon 2/22

3:50 pm-2:50 pm

1 stop39h 00m

$1,270

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 2/15

4:00 pm-10:20 am

2 stops26h 20m

Sydney Kingsford Smith

Wed 3/3

9:25 pm-7:29 am

1 stop26h 04m

$1,306

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 2/24

12:38 pm-6:55 am

1 stop26h 17m

Sydney Kingsford Smith

Wed 3/10

10:25 am-8:29 pm

2 stops26h 04m

$1,316

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 1/26

9:00 am-8:35 am

2 stops31h 35m

Sydney Kingsford Smith

Mon 2/8

11:50 am-5:08 pm

2 stops45h 18m

$1,378

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Sat 3/6

7:45 pm-10:35 am

2 stops46h 50m

Sydney Kingsford Smith

Tue 3/16

9:55 am-10:28 pm

2 stops27h 33m

$1,385

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 3/10

4:00 pm-9:00 am

2 stops25h 00m

Sydney Kingsford Smith

Wed 3/24

1:05 pm-10:31 pm

2 stops24h 26m

$1,499

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Wed 2/17

4:05 pm-6:25 am

1 stop22h 20m

Sydney Kingsford Smith

Wed 2/24

11:20 am-11:56 pm

1 stop28h 36m

$1,544

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Mon 3/22

8:10 am-7:00 am

1 stop31h 50m

Sydney Kingsford Smith

Mon 4/5

10:20 am-9:20 pm

1 stop25h 00m

$1,548

Quickest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

Tue 3/23

6:13 pm-9:20 am

1 stop24h 07m

Sydney Kingsford Smith

Mon 4/5

10:20 am-9:20 pm

1 stop25h 00m

$1,548

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 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

Layovers

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 $1,384 to $1,555.
The lowest price recently found on this route was $1,267.

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Philadelphia to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,223. If you are unable to visit Sydney during the month of March, then departing from Philadelphia during the month February is also very affordable. Most momondo users find prices during this month for around $1,332.

How far in advance should I book a flight from Philadelphia 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 $1,518 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Philadelphia for as low as $1,205 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 16% 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 round-trip 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

Best Price Found	$755
Fastest flight time	23h 22m
Direct flights	None

The best one-way flight to Sydney from Philadelphia in the past 72 hours is $755. The best round-trip flight deal from Philadelphia to Sydney found on momondo in the last 72 hours is $1,267.

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

Frequently asked questions about flying from Philadelphia to Sydney

How far is Philadelphia to Sydney Kingsford Smith by plane?
Philadelphia and Sydney Kingsford Smith are 9863.8 mi apart from one another. Flights usually cover this in 23h 22m, depending on flying conditions and air traffic around both airports.
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 refreshed on a daily basis.
How many operators does momondo search for flights from Philadelphia Airport to Sydney Kingsford Smith Airport?
As of November 2026, there are 5 operators available to choose from for flights from Philadelphia Airport to Sydney Kingsford Smith Airport.
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 layovers. 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Philadelphia to Sydney?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Sydney is Qantas Airways, representing 55% of all bookings. The subsequent popular airlines are American Airlines at 26%, United Airlines at 11%, and Air Canada at 5%.

Best airlines flying from Philadelphia to Sydney

Compare and see reviews for airlines that fly from Philadelphia to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Qantas Airways	PriceFrom $1,046	Free Cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,124	Free Cancellation	Rating 7.3 10,475 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,181	Free Cancellation	Rating 7.1 11,875 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,198	Free Cancellation	Rating 7.0 12,225 reviews	Search American Airlines flights
Air New Zealand	PriceFrom $1,352	Free Cancellation	Rating 8.0 683 reviews	Search Air New Zealand flights

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Why use momondo?

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

Finding the right flight to Sydney 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 Sydney quick and easy, saving you time and money.

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?

Once you have performed a search for Philadelphia to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Sydney from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Philadelphia to Sydney from $755

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Sydney departing on 11/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qatar Airways flights from Philadelphia to Sydney

Our best Qatar Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

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How to get the cheapest flight ticket from Philadelphia to Sydney

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

What is the cheapest month to fly to Sydney?

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

Can stopping save me money on Philadelphia to Sydney flights?

How have Philadelphia to Sydney flight prices changed over time?

What is the cheapest airline that flies from Philadelphia to Sydney Kingsford Smith?

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Philadelphia and Sydney?

Which layover airport offers the lowest fares from Philadelphia to Sydney?

Which layover airport has the shortest travel time from Philadelphia to Sydney?

Which layover airport has the shortest connection time from Philadelphia to Sydney?

When to book flights from Philadelphia to Sydney

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Sydney

Best airlines flying from Philadelphia to Sydney

Compare and see reviews for airlines that fly from Philadelphia to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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