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

San Francisco (SFO) has the shortest average layover time for this route: 1h 39m.

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 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 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 45% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 10 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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.

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 April 2026, there are 6 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.

$576 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 $1,806 to $1,230. The lowest price recently found on this route was $1,273.

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5:37 pm - 7:05 am

PHL

SYD

23h 28m

1 stop

9:10 am - 6:54 pm

SYD

PHL

23h 44m

1 stop

$1,273Qantas Airways

Tue, May 12 - Tue, May 19

5:40 pm - 7:05 am

PHL

SYD

23h 25m

1 stop

9:10 am - 6:35 pm

SYD

PHL

23h 25m

1 stop

$1,274Qantas Airways

Mon, Jun 1 - Tue, Jun 9

5:40 pm - 7:05 am

PHL

SYD

23h 25m

1 stop

9:10 am - 6:28 pm

SYD

PHL

23h 18m

1 stop

$1,284Qantas Airways

Wed, Jul 1 - Mon, Jul 13

6:01 pm - 7:05 am

PHL

SYD

23h 04m

1 stop

12:00 pm - 9:03 pm

SYD

PHL

23h 03m

1 stop

$1,285Qantas Airways

Tue, Aug 4 - Tue, Sep 1

3:29 pm - 7:05 am

PHL

SYD

25h 36m

1 stop

9:10 am - 6:35 pm

SYD

PHL

23h 25m

1 stop

$1,291Qantas Airways

Wed, Jun 3 - Wed, Jun 17

5:30 pm - 7:05 am

PHL

SYD

23h 35m

2 stops

9:25 pm - 5:50 am

SYD

PHL

22h 25m

1 stop

$1,302American Airlines

Mon, Sep 14 - Sun, Sep 27

5:30 pm - 7:05 am

PHL

SYD

23h 35m

2 stops

9:10 am - 6:34 pm

SYD

PHL

23h 24m

1 stop

$1,303American Airlines

Mon, Sep 14 - Sun, Sep 27

5:30 pm - 7:05 am

PHL

SYD

23h 35m

2 stops

9:25 pm - 5:50 am

SYD

PHL

22h 25m

1 stop

$1,305American Airlines

Mon, Sep 14 - Sun, Sep 27

11:30 am - 7:00 am

PHL

SYD

29h 30m

2 stops

9:30 am - 7:18 pm

SYD

PHL

23h 48m

2 stops

$1,306United Airlines

Mon, Sep 14 - Sun, Sep 27

5:43 pm - 7:05 am

PHL

SYD

23h 22m

1 stop

9:10 am - 6:34 pm

SYD

PHL

23h 24m

1 stop

$1,308Qantas Airways

Tue, Aug 11 - Tue, Aug 25

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways

May 12

PHL5:37 pmPhiladelphia

23h 28m

1 stop

SYD7:05 amSydney Kingsford Smith

May 19

SYD9:10 amSydney Kingsford Smith

23h 44m

1 stop

PHL6:54 pmPhiladelphia

$1,273

Qantas Airways

Jun 1

PHL5:40 pmPhiladelphia

23h 25m

1 stop

SYD7:05 amSydney Kingsford Smith

Jun 9

SYD9:10 amSydney Kingsford Smith

23h 25m

1 stop

PHL6:35 pmPhiladelphia

$1,274

Qantas Airways

Jul 1

PHL5:40 pmPhiladelphia

23h 25m

1 stop

SYD7:05 amSydney Kingsford Smith

Jul 13

SYD9:10 amSydney Kingsford Smith

23h 18m

1 stop

PHL6:28 pmPhiladelphia

$1,284

Delta flights from Philadelphia to Sydney

Our best Delta deals on Philadelphia to Sydney flight tickets

Delta

May 18

PHL2:23 pmPhiladelphia

26h 27m

2 stops

SYD6:50 amSydney Kingsford Smith

May 26

SYD9:15 amSydney Kingsford Smith

26h 57m

2 stops

PHL10:12 pmPhiladelphia

$1,321

Delta

Apr 29

PHL3:42 pmPhiladelphia

25h 08m

2 stops

SYD6:50 amSydney Kingsford Smith

May 10

SYD9:15 amSydney Kingsford Smith

37h 40m

2 stops

PHL8:55 amPhiladelphia

$1,323

Delta

Apr 30

PHL3:42 pmPhiladelphia

25h 08m

2 stops

SYD6:50 amSydney Kingsford Smith

May 11

SYD9:15 amSydney Kingsford Smith

25h 34m

2 stops

PHL8:49 pmPhiladelphia

$1,373

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 5/12

5:37 pm-7:05 am

1 stop23h 28m

Sydney Kingsford Smith

Tue 5/19

9:10 am-6:54 pm

1 stop23h 44m

$1,273

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 6/1

5:40 pm-7:05 am

1 stop23h 25m

Sydney Kingsford Smith

Tue 6/9

9:10 am-6:35 pm

1 stop23h 25m

$1,274

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 7/1

5:40 pm-7:05 am

1 stop23h 25m

Sydney Kingsford Smith

Mon 7/13

9:10 am-6:28 pm

1 stop23h 18m

$1,284

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 8/4

6:01 pm-7:05 am

1 stop23h 04m

Sydney Kingsford Smith

Tue 9/1

12:00 pm-9:03 pm

1 stop23h 03m

$1,285

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 6/3

3:29 pm-7:05 am

1 stop25h 36m

Sydney Kingsford Smith

Wed 6/17

9:10 am-6:35 pm

1 stop23h 25m

$1,291

Quickest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/14

5:30 pm-7:05 am

2 stops23h 35m

Sydney Kingsford Smith

Sun 9/27

9:25 pm-5:50 am

1 stop22h 25m

$1,302

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/14

5:30 pm-7:05 am

2 stops23h 35m

Sydney Kingsford Smith

Sun 9/27

9:10 am-6:34 pm

1 stop23h 24m

$1,303

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/14

5:30 pm-7:05 am

2 stops23h 35m

Sydney Kingsford Smith

Sun 9/27

9:25 pm-5:50 am

1 stop22h 25m

$1,305

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 9/14

11:30 am-7:00 am

2 stops29h 30m

Sydney Kingsford Smith

Sun 9/27

9:30 am-7:18 pm

2 stops23h 48m

$1,306

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 8/11

5:43 pm-7:05 am

1 stop23h 22m

Sydney Kingsford Smith

Tue 8/25

9:10 am-6:34 pm

1 stop23h 24m

$1,308

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?

What is the cheapest month to fly to Sydney?

In general, February 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 $1,059. If you are unable to visit Sydney during the month of February, then departing from Philadelphia during the month March is also very affordable. Most momondo users find prices during this month for around $1,122.

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 $1,486 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 $1,136 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 42% 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

Fastest flight time	22h 25m
Direct flights	None

The fastest flight from Philadelphia to Sydney takes 22h 25m

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 22h 25m, 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 April 2026, there are 6 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 34% of all bookings. The subsequent popular airlines are American Airlines at 23%, Fiji Airways at 16%, and United Airlines at 12%.

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
United Airlines	PriceFrom $843	Free Cancellation	Rating 7.4 9,610 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,044	Free Cancellation	Rating 7.5 1,023 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,066	Free Cancellation	Rating 7.1 10,947 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,198	Free Cancellation	Rating 7.1 11,646 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $1,272	Free Cancellation	Rating 8.1 240 reviews	Search Fiji Airways flights
Air New Zealand	PriceFrom $1,418	Free Cancellation	Rating 8.0 632 reviews	Search Air New Zealand flights

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Coogee

Lithgow

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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.

An easier way to manage your Sydney trip

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Cheap flights from Philadelphia to Sydney from $576

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 8/28. 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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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 to Sydney?

Can stopping save me money on Philadelphia to Sydney flights?

How have Philadelphia to Sydney flight prices changed over time?

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

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

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.

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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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