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$592+ Cheap flights from Sydney (SYD) to Philadelphia (PHL)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 59 days in advance, depart on a Monday or Thursday and return on a Sunday

Cheap flight deals from Sydney to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Philadelphia (PHL). 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 June 12, 2025.

Round-trip from

$1,207
(Delta)

One-way from

$592
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,205
From Sydney Kingsford Smith to Philadelphia
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One-way flight from Sydney Kingsford Smith to Philadelphia
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Highest demand for flights based on searches. 14% potential increase in price ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Sydney to Philadelphia

Cheapest flights from Sydney to Philadelphia
Explore the most affordable flight options available from Sydney to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/279:25 amSYD - PHL
2 stops24h 04mDelta
Sun 8/39:36 amPHL - SYD
2 stops30h 59mDelta
Deal found 6/12$1,207
This BestPriceTravel deal was found by Cheapflights users on 6/12. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/149:10 amSYD - PHL
1 stop22h 32mQantas Airways
Sat 10/43:40 pmPHL - SYD
1 stop25h 25mQantas Airways
Deal found 6/12$1,268
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/275:45 pmSYD - PHL
1 stop27h 13mMultiple Airlines
Sun 8/39:12 pmPHL - SYD
2 stops44h 18mMultiple Airlines
Deal found 6/12$1,288
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/279:20 amSYD - PHL
3 stops43h 17mAir Canada
Sun 8/310:40 amPHL - SYD
2 stops54h 40mAir Canada
Deal found 6/12$1,352
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Sun 9/149:10 amSYD - PHL
1 stop25h 02mAmerican Airlines
Sat 10/44:00 pmPHL - SYD
2 stops25h 05mAmerican Airlines
Deal found 6/12$1,365
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 6/2710:20 amSYD - PHL
3 stops28h 10mUnited Airlines
Thu 7/1710:10 amPHL - SYD
2 stops30h 50mUnited Airlines
Deal found 6/12$2,203
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/238:55 amSYD - PHL
2 stops44h 00mJapan Airlines
Tue 8/1210:50 amPHL - SYD
2 stops29h 30mJapan Airlines
Deal found 6/11$4,692
This Arangrant deal was found by Cheapflights users on 6/10. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:45 pmSYD - PHL
1 stop50h 15mQatar Airways
Sun 11/1611:23 amPHL - SYD
2 stops39h 27mQatar Airways
Deal found 6/10$8,492
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/248:55 amSYD - PHL
3 stops29h 43mAir Tahiti Nui
Tue 8/126:50 pmPHL - SYD
3 stops33h 00mAir Tahiti Nui
Deal found 6/11$9,150

Cheapflights Fare Finder

Customize your flight search to find flights from Sydney to Philadelphia 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

Fly from

Sydney

Fly to

Philadelphia

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 7/27

9:25 am-7:29 pm

2 stops24h 04m

Philadelphia

Sun 8/3

10:38 am-6:35 am

2 stops29h 57m

$1,207

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

9:10 am-5:42 pm

1 stop22h 32m

Philadelphia

Sat 10/4

3:40 pm-8:05 am

1 stop25h 25m

$1,268

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 7/27

5:45 pm-6:58 am

1 stop27h 13m

Philadelphia

Sun 8/3

9:12 pm-7:30 am

2 stops44h 18m

$1,288

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 7/27

9:20 am-2:37 pm

3 stops43h 17m

Philadelphia

Sun 8/3

10:40 am-7:20 am

2 stops54h 40m

$1,352

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

9:10 am-8:12 pm

1 stop25h 02m

Philadelphia

Sat 10/4

4:00 pm-8:05 am

2 stops25h 05m

$1,365

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 7/27

9:40 pm-5:25 am

2 stops45h 45m

Philadelphia

Sun 8/3

6:52 pm-7:45 pm

2 stops34h 53m

$1,606

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 7/27

10:20 am-5:22 pm

1 stop21h 02m

Philadelphia

Sun 8/3

6:52 pm-7:00 am

2 stops46h 08m

$2,049

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 7/23

8:55 am-2:55 pm

2 stops44h 00m

Philadelphia

Tue 8/12

10:50 am-6:20 am

2 stops29h 30m

$4,692

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 10/7

9:45 pm-9:00 am

1 stop50h 15m

Philadelphia

Sun 11/16

11:23 am-6:50 pm

2 stops39h 27m

$8,492

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/24

8:55 am-12:38 am

3 stops29h 43m

Philadelphia

Tue 8/12

6:50 pm-5:50 pm

3 stops33h 00m

$9,150

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 19 results
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Best time to book a flight from Sydney to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Sydney 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.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Philadelphia. Price data was last updated on June 9, 2025.

The price you pay for your flight from Sydney to Philadelphia may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $236). Flying from Sydney to Philadelphia in March is currently the most expensive (average of $295). 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.

Rainfall in Philadelphia by month

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

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

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

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated June 12, 2025.
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very good
64 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very good
1,490 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Alaska Airlines
8.0
Very good
10,000 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very good
7,946 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Qantas Airways
7.5
Good
854 reviews
Air Tahiti Nui
8.7
Very good
64 reviews

Boarding

8.7

Comfort

8.1

Entertainment

7.3

Overall

8.7

Food

7.8

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Philadelphia. 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 Sydney to Philadelphia round-trip?

    Cheapflights users have booked flights from Sydney to Philadelphia round-trip from $1,207. Other airlines that can offer you cheap pricing are Qantas Airways, from $1,268, and Air Canada, from $1,352. Delta is currently priced 15% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $738 on Air Canada. Other airlines that offer cheap prices include Qantas Airways from $759 and Delta from $775 one-way.

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

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

  • How can I find direct flights from Sydney to Philadelphia?

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

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

    Yes. Cheapflights offers flight deals from Sydney to Philadelphia 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 Sydney to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $236). Flying from Sydney to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Vineland
Wildwood
Pottstown
King of Prussia
Cherry Hill
Exton
Ocean City
Chester
Essington
Reading
Newark
Middletown
Millville
Ephrata
Camden
Dover
Elkton
Willow Grove
Glen Mills
Springfield

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.

Top airline flying from Sydney to Philadelphia

Discover the top airline that operate flights from Sydney to Philadelphia. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,123Average$1,262FlexibilityNo cancel feeOn-time74%

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