What’s the fastest stopover option from Philadelphia to Sydney?

Flights via San Francisco (SFO) have the shortest average one-way travel time for one-stop routes: 22h 50m. Find deals

What’s the cheapest stopover airport for flights from Philadelphia to Sydney?

San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of $1,349. Find deals

What’s the top stopover airport for flights from Philadelphia to Sydney?

San Francisco (SFO) – chosen by Cheapflights users on 50% of one-stop itineraries from Philadelphia to Sydney on Cheapflights. Find deals

Which airport typically offers the quickest stopover for flights from Philadelphia to Sydney?

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average stopover time of 2h 04m. Find deals

How long is the flight from Philadelphia to Sydney?

There are many flights that can get you from Philadelphia to Sydney in 33h 10m. Fly via Alaska Airlines to get the fastest option. The distance between Philadelphia and Sydney is about 15871 km.

What is the cheapest airline to fly from Philadelphia to Sydney round-trip?

Our cheapest airline available from Philadelphia to Sydney is United Airlines. Our recent data shows that you can find tickets from as low as $1,292 on this airline. United Airlines is currently priced 42% below the average price you’ll pay for this route.

What is the cheapest day to fly from Philadelphia to Sydney?

Travellers seeking maximum savings on their Philadelphia to Sydney flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest day to fly return from Philadelphia to Sydney?

Tuesday flights are generally found to be more expensive for flights from Philadelphia to Sydney. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.

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

Find a great deal and save up to 31% by booking at least 28 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Philadelphia to Sydney within the next two weeks, with the cheapest ticket starting at $1,321.

What is the cheapest month to fly from Philadelphia to Sydney?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Sydney. Flights to Sydney from Philadelphia in February are about $2,266 on average during February, but can be found for as low as $1,252.

What is the cheapest time of day to fly from PHL to SYD?

When flying from Philadelphia to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Philadelphia to Sydney that include hotel bookings?

Yes. In addition to deals on Philadelphia to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Philadelphia to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Sydney.

Can I find deals for business class flights from Philadelphia to Sydney?

Yes. Cheapflights offers flight deals from Philadelphia to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$983+ Cheap Flights from Philadelphia to Sydney

Cheapflights Tip: The best prices from Philadelphia to Sydney Kingsford Smith are usually found in February or September, booked 27 days in advance, depart on a Tuesday or Thursday and return on a Thursday

Cheap flight deals from Philadelphia to Sydney

Round-trip from	$1,723
One-way from	$983
Popular in	December
Cheapest in	February
Average price	$1,741

Alaska Airlines
3/2-27/2
4 total stops
69h 01m total
Philadelphia to Sydney

Search Deals

Fiji Airways
25/10
2 total stops
27h 02m total
Philadelphia to Sydney

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($653 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($114 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Philadelphia to Sydney

Cheapest flights from Philadelphia to Sydney
Explore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Sun 26/1013:02PHL - SYD

2 stops28h 58mMultiple Airlines

Sun 2/1114:05SYD - PHL

2 stops26h 14mMultiple Airlines

Deal found 13/9$1,726

Wed 12/1110:27PHL - SYD

2 stops41h 28mMultiple Airlines

Tue 18/1109:45SYD - PHL

2 stops27h 55mMultiple Airlines

Deal found 13/9$1,804

Mon 13/1017:50PHL - SYD

2 stops48h 10mMultiple Airlines

Mon 20/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 13/9$1,853

Tue 11/1110:27PHL - SYD

2 stops43h 23mFiji Airways

Tue 18/1114:10SYD - PHL

2 stops23h 30mFiji Airways

Deal found 13/9$1,882

Tue 11/1115:55PHL - SYD

1 stop25h 05mQantas Airways

Tue 18/1106:20SYD - PHL

2 stops28h 44mQantas Airways

Deal found 13/9$1,885

Mon 10/1115:55PHL - SYD

1 stop25h 05mQantas Airways

Mon 17/1117:50SYD - PHL

2 stops39h 27mQantas Airways

Deal found 14/9$1,920

Tue 30/918:44PHL - SYD

2 stops27h 01mFiji Airways

Tue 28/1014:15SYD - PHL

2 stops23h 44mFiji Airways

Deal found 13/9$1,974

Fri 24/1019:00PHL - SYD

2 stops36h 10mFiji Airways

Sat 15/1106:00SYD - PHL

2 stops31h 40mFiji Airways

Deal found 13/9$1,977

Tue 4/1115:55PHL - SYD

1 stop25h 05mQantas Airways

Thu 13/1117:50SYD - PHL

2 stops36h 48mQantas Airways

Deal found 13/9$1,995

Wed 3/1215:13PHL - SYD

2 stops31h 12mQantas Airways

Wed 7/111:15SYD - PHL

1 stop28h 37mQantas Airways

Deal found 13/9$1,998

Thu 6/1115:40PHL - SYD

2 stops29h 20mMultiple Airlines

Thu 13/1114:00SYD - PHL

2 stops23h 35mMultiple Airlines

Deal found 13/9$2,010

Best flights from Philadelphia to Sydney
Discover carefully curated flight deals from Philadelphia to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2025.

Tue 3/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Fri 27/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,723

Mon 16/217:05PHL - SYD

1 stop23h 55mQantas Airways

Tue 24/206:20SYD - PHL

2 stops30h 49mQantas Airways

Deal found 14/9$1,885

Sat 31/117:17PHL - SYD

2 stops27h 13mFiji Airways

Tue 24/206:00SYD - PHL

2 stops31h 09mFiji Airways

Deal found 14/9$1,894

Fri 6/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Fri 27/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,750

Sat 31/118:35PHL - SYD

2 stops57h 10mAlaska Airlines

Fri 27/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,774

Tue 3/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Sat 28/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,792

Sun 1/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Sun 1/321:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,792

Mon 2/218:35PHL - SYD

2 stops57h 10mAlaska Airlines

Fri 27/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,802

Thu 5/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Sat 28/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,820

Fri 6/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Sat 28/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,820

Sun 1/218:35PHL - SYD

2 stops33h 10mAlaska Airlines

Sat 28/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,834

Sat 31/118:35PHL - SYD

2 stops57h 10mAlaska Airlines

Sat 28/221:40SYD - PHL

2 stops35h 51mAlaska Airlines

Deal found 14/9$1,843

Last-minute flights from Philadelphia to Sydney
Discover last-minute flight deals from Philadelphia to Sydney. Data last updated 14 September 2025 and is based on user searches.

Sun 21/917:37PHL - SYD

2 stops48h 23mMultiple Airlines

Sun 12/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 14/9$2,050

Sun 21/917:37PHL - SYD

2 stops48h 23mMultiple Airlines

Fri 10/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 14/9$2,059

Mon 22/906:25PHL - SYD

2 stops35h 05mMultiple Airlines

Sun 12/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 14/9$2,062

Mon 22/906:25PHL - SYD

2 stops35h 05mMultiple Airlines

Sat 11/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 14/9$2,126

Tue 23/906:25PHL - SYD

2 stops35h 05mMultiple Airlines

Sun 12/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 14/9$2,065

Tue 30/918:44PHL - SYD

2 stops27h 01mFiji Airways

Tue 28/1014:15SYD - PHL

2 stops23h 44mFiji Airways

Deal found 13/9$1,974

Mon 13/1017:50PHL - SYD

2 stops48h 10mMultiple Airlines

Mon 20/1018:45SYD - PHL

1 stop27h 17mMultiple Airlines

Deal found 13/9$1,853

Fri 24/1017:20PHL - SYD

2 stops37h 50mFiji Airways

Sat 15/1106:00SYD - PHL

2 stops31h 40mFiji Airways

Deal found 14/9$1,977

Fri 24/1017:20PHL - SYD

1 stop23h 45mQantas Airways

Sat 15/1117:50SYD - PHL

2 stops42h 40mQantas Airways

Deal found 14/9$2,070

Sun 26/1013:02PHL - SYD

2 stops28h 58mMultiple Airlines

Sun 2/1114:05SYD - PHL

2 stops26h 14mMultiple Airlines

Deal found 13/9$1,726

One-way flights from Philadelphia to Sydney
Search for one-way flight options from Philadelphia to Sydney. Find affordable one-way fares based on user searches. Data last updated 14 September 2025.

Sat 25/1018:43PHL - SYD

2 stops27h 02mFiji Airways

Deal found 12/9$983

Tue 11/1115:55PHL - SYD

2 stops37h 55mFiji Airways

Deal found 13/9$1,019

Tue 30/918:44PHL - SYD

2 stops27h 01mFiji Airways

Deal found 13/9$1,064

Tue 20/117:17PHL - SYD

2 stops27h 13mFiji Airways

Deal found 13/9$1,072

Tue 30/914:45PHL - SYD

3 stops53h 00mMultiple Airlines

Deal found 13/9$1,075

Mon 29/919:08PHL - SYD

3 stops48h 37mMultiple Airlines

Deal found 13/9$1,082

Sat 27/917:37PHL - SYD

2 stops50h 08mMultiple Airlines

Deal found 13/9$1,087

Wed 21/113:55PHL - SYD

2 stops38h 00mMultiple Airlines

Deal found 13/9$1,124

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 3/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Fri 27/2

21:40-17:31

2 stops35h 51m

$1,723

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 6/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Fri 27/2

21:40-17:31

2 stops35h 51m

$1,750

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 31/1

18:35-19:45

2 stops57h 10m

Sydney Kingsford Smith

Fri 27/2

21:40-17:31

2 stops35h 51m

$1,774

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 3/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Sat 28/2

21:40-17:31

2 stops35h 51m

$1,792

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 1/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Sun 1/3

21:40-17:31

2 stops35h 51m

$1,792

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/2

18:35-19:45

2 stops57h 10m

Sydney Kingsford Smith

Fri 27/2

21:40-17:31

2 stops35h 51m

$1,802

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 5/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Sat 28/2

21:40-17:31

2 stops35h 51m

$1,820

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 6/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Sat 28/2

21:40-17:31

2 stops35h 51m

$1,820

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 1/2

18:35-19:45

2 stops33h 10m

Sydney Kingsford Smith

Sat 28/2

21:40-17:31

2 stops35h 51m

$1,834

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 31/1

18:35-19:45

2 stops57h 10m

Sydney Kingsford Smith

Sat 28/2

21:40-17:31

2 stops35h 51m

$1,843

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 20 results

Best time to book a flight from Philadelphia to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Philadelphia with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Sydney

Prices

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

Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Philadelphia to Sydney?

Currently, May is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $129). Flying from Philadelphia to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sydney

Read reviews from past customers who have flown with United Airlines from Philadelphia to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,931 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,931 reviews

United Airlines

7.4

Good

8,931 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

How long is the flight from Philadelphia to Sydney?
There are many flights that can get you from Philadelphia to Sydney in 33h 10m. Fly via Alaska Airlines to get the fastest option. The distance between Philadelphia and Sydney is about 15871 km.
What is the cheapest airline to fly from Philadelphia to Sydney round-trip?
Our cheapest airline available from Philadelphia to Sydney is United Airlines. Our recent data shows that you can find tickets from as low as $1,292 on this airline. United Airlines is currently priced 42% below the average price you’ll pay for this route.
Can I find deals for flights from Philadelphia to Sydney that include hotel bookings?
Yes. In addition to deals on Philadelphia to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Sydney.
Can I find deals for business class flights from Philadelphia to Sydney?
Yes. Cheapflights offers flight deals from Philadelphia to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Philadelphia to Sydney?
Currently, May is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $129). Flying from Philadelphia to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Parramatta

Wollongong

Katoomba

Penrith

Manly

Terrigal

Lithgow

Randwick

Bondi Beach

Coogee

Cronulla

Leura

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Alternative routes for Philadelphia to Sydney

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Direct flights to New South Wales

Other flights to Sydney

Top airline flying from Philadelphia to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,292	Average$1,365	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Philadelphia to Sydney?

Deals for Philadelphia to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Sydney?

Cheapflights simply makes it quick and affordable to book flights from Philadelphia to Sydney by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Philadelphia to Sydney with no change fees?

Yes, we can. To see specific flights from Philadelphia to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Philadelphia to Sydney become cheaper?

Of course! You can now track prices for flights from Philadelphia to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Philadelphia to Sydney from $983

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Philadelphia to Sydney Kingsford Smith are usually found in February or September, booked 27 days in advance, depart on a Tuesday or Thursday and return on a Thursday

Cheap flight deals from Philadelphia to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Philadelphia to Sydney

Cheapest flights from Philadelphia to SydneyExplore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Explore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Sydney that are best for you.

Best time to book a flight from Philadelphia to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Philadelphia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Sydney

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

What is the cheapest month to book a flight from Philadelphia to Sydney?

What’s the top stopover airport for flights from Philadelphia to Sydney?

What’s the fastest stopover option from Philadelphia to Sydney?

What’s the fastest stopover option from Philadelphia to Sydney?

Which airport typically offers the quickest stopover for flights from Philadelphia to Sydney?

Reviews of airlines servicing Sydney

Read reviews from past customers who have flown with United Airlines from Philadelphia to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Philadelphia to Sydney?

What is the cheapest airline to fly from Philadelphia to Sydney round-trip?

Can I find deals for flights from Philadelphia to Sydney that include hotel bookings?

How can I find direct flights from Philadelphia to Sydney?

Can I find deals for business class flights from Philadelphia to Sydney?

What is the cheapest month to book a flight from Philadelphia to Sydney?

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Philadelphia to Sydney

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Philadelphia to Sydney?

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Sydney?

Can Cheapflights find flights from Philadelphia to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from Philadelphia to Sydney become cheaper?

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Cheapest flights from Philadelphia to Sydney
Explore the most affordable flight options available from Philadelphia to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2025.