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$669+ Cheap flights from Philadelphia (PHL) to Sydney (SYD)

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SYD
Dec 8 — Dec 151
Sun 12/8
Sun 12/15
1 adult, Economy
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The best prices from Philadelphia to Sydney Kingsford Smith are usually found in March or February, booked 27 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from Philadelphia to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 3, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

March

Round-trip from

$980
(Delta)

One-way from

$669
(Fiji Airways)
Provider with most accurate pricing for Philadelphia-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Sydney Kingsford Smith flights.
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High demand for flights, 24% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Philadelphia to Sydney Kingsford Smith
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One-way flight from Philadelphia to Sydney Kingsford Smith
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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 December 3, 2024.

This Air Canada deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/23:30 pmPHL - SYD
2 stops26h 05mAir Canada
Thu 12/511:20 amSYD - PHL
2 stops43h 30mAir Canada
Deal found 12/1$1,986
This KAYAK deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/27:50 pmPHL - SYD
1 stop31h 00mQatar Airways
Thu 12/56:30 amSYD - PHL
2 stops49h 15mQatar Airways
Deal found 12/1$2,172
This KAYAK deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/56:20 pmPHL - SYD
1 stop22h 55mAir New Zealand
Sat 12/711:45 amSYD - PHL
2 stops27h 14mAir New Zealand
Deal found 12/1$2,365
This Justfly.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:36 pmPHL - SYD
2 stops26h 44mQantas Airways
Fri 1/37:30 amSYD - PHL
2 stops25h 25mQantas Airways
Deal found 12/2$2,645
This Fiji Airways deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/174:05 pmPHL - SYD
2 stops28h 25mMultiple Airlines
Wed 1/156:00 amSYD - PHL
2 stops33h 52mMultiple Airlines
Deal found 12/2$2,803
This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:43 pmPHL - SYD
2 stops28h 22mUnited Airlines
Sat 1/411:50 amSYD - PHL
1 stop27h 02mUnited Airlines
Deal found 12/2$3,235
This KAYAK deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:42 amPHL - SYD
2 stops32h 13mKorean Air
Sat 1/49:10 amSYD - PHL
2 stops55h 42mKorean Air
Deal found 12/2$3,271
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/171:45 pmPHL - SYD
1 stop27h 15mAmerican Airlines
Wed 1/1511:15 amSYD - PHL
1 stop22h 29mAmerican Airlines
Deal found 12/2$3,778
This KAYAK deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:14 pmPHL - SYD
3 stops52h 11mLATAM Airlines
Sat 1/411:40 amSYD - PHL
3 stops53h 12mLATAM Airlines
Deal found 12/2$4,371
This oojo deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/164:55 pmPHL - SYD
3 stops45h 40mChina Southern
Sat 1/48:10 amSYD - PHL
2 stops40h 54mChina Southern
Deal found 12/2$4,427
This oojo deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/271:40 pmPHL - SYD
2 stops54h 20mCathay Pacific
Tue 1/710:20 pmSYD - PHL
2 stops37h 59mCathay Pacific
Deal found 12/2$8,380
This British Airways deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/21:45 pmPHL - SYD
3 stops49h 10mBritish Airways
Thu 12/54:20 pmSYD - PHL
3 stops43h 00mBritish Airways
Deal found 12/1$14,478

Find flights from Philadelphia to Sydney within your budget

Customize your flight search to find flights from Philadelphia to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,700,776 searches. Data last updated December 3, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 2/6

9:33 am-6:50 am

2 stops29h 17m

Sydney Kingsford Smith

Thu 2/20

11:05 am-10:52 pm

2 stops27h 47m

$980

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 2/16

6:00 am-9:05 am

3 stops35h 05m

Sydney Kingsford Smith

Sun 2/23

11:50 am-10:48 pm

1 stop26h 58m

$1,158

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 1/15

11:02 am-12:30 pm

3 stops33h 28m

Sydney Kingsford Smith

Wed 2/12

2:00 pm-7:18 am

3 stops33h 18m

$1,226

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 3/3

3:30 pm-9:35 am

2 stops26h 05m

Sydney Kingsford Smith

Mon 4/14

9:20 am-10:36 pm

2 stops27h 16m

$1,242

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 1/30

1:55 pm-9:00 am

1 stop27h 05m

Sydney Kingsford Smith

Mon 2/17

11:15 am-7:24 pm

1 stop24h 09m

$1,341

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 5/1

4:45 pm-7:00 am

1 stop24h 15m

Sydney Kingsford Smith

Tue 5/13

8:45 am-10:25 pm

2 stops27h 40m

$1,485

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 2/17

7:56 pm-6:10 am

2 stops42h 14m

Sydney Kingsford Smith

Tue 2/25

9:40 pm-3:45 pm

1 stop34h 05m

$1,723

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 2/11

5:35 pm-12:30 pm

2 stops26h 55m

$669

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 2/11

1:55 pm-9:00 am

1 stop27h 05m

$1,232

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 1/11

1:55 pm-7:25 am

1 stop25h 30m

$1,646

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 15 results
1
2

Compare providers for flights from Philadelphia to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Sydney in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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.

Travel insights for flights from Philadelphia to Sydney

Get recent, data-driven insights about flights from Philadelphia to Sydney including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Sydney. Price data was last updated on November 22, 2024.

To ensure you get the cheapest price possible for a flight from Philadelphia to Sydney, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $1,051). Flying from Philadelphia to Sydney in December is currently the most expensive (average of $1,298). 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.

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

Find hourly flight availability from Philadelphia to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 3, 2024.

It’s typically best to fly out from Philadelphia to Sydney in the morning. Doing so could potentially save you 30% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Sydney. Price data was last updated on December 1, 2024.

Travelers seeking maximum savings on their Philadelphia to Sydney flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated December 3, 2024.
Read through reviews of airlines operating flights from Philadelphia to Sydney, such as Air New Zealand and Qantas Airways. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

Air New Zealand
8.1
Very good
523 reviews
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

Alaska Airlines
8.0
Very good
9,513 reviews
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

Delta
8.0
Very good
8,698 reviews
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

Qantas Airways
7.6
Good
810 reviews
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

Qatar Airways
7.5
Good
3,816 reviews
Air New Zealand
8.1
Very good
523 reviews

Comfort

8.0

Crew

8.6

Food

7.4

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 10

Finally, one out of the four air NZ flight that was on time and we actually ended up half an hour early then the scheduled time.

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.

  • What are the cheapest airlines flying from Philadelphia to Sydney round-trip?

    According to our current data, Delta ($980), United Airlines ($1,158), and Air Canada ($1,242) offers the cheapest pricing from Philadelphia to Sydney. Delta is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Sydney one-way?

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $1,232. However, be on the lookout for offers from American Airlines and Air China, as they are both options that can get you from Philadelphia to Sydney for a low price.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Philadelphia to Sydney (average of $1,051). Flying from Philadelphia to Sydney in December is currently the most expensive (average of $1,298). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Philadelphia to Sydney

Discover the top 6 airlines that operate flights from Philadelphia to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,700,776 searches. Data last updated December 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$834Average$992FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$1,022Average$1,446FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$1,033Average$1,760FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,082Average$1,509FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,244Average$1,883FlexibilityNo cancel feeOn-time74%
Air New ZealandCheapest$1,401Average$1,676FlexibilityNo cancel feeOn-time78%
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