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Cheap flights from Sydney to Philadelphia from $749

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 17 days in advance, depart on a Thursday or Friday and return on a Tuesday

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 15 April 2025.

Round-trip from

$1,621

One-way from

$1,007

Popular in

December

Cheapest in

February

Average price

$1,929
29/5-5/6
  • 29/5-5/6
  • 4 total stops
  • 60h 15m total
  • Sydney to Philadelphia
30/5
  • 30/5
  • 2 total stops
  • 38h 35m total
  • Sydney to Philadelphia
Highest demand for flights based on searches. 18% potential increase in price ($793 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($152 potential savings vs. average return price).
Average for round-trip flights in April 2025

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 15 April 2025.

Thu 29/513:15SYD - PHL
2 stops31h 35mMultiple Airlines
Thu 5/617:35PHL - SYD
2 stops28h 40mMultiple Airlines
Deal found 14/4$1,621
Thu 21/808:45SYD - PHL
2 stops41h 14mAir New Zealand
Sun 31/813:06PHL - SYD
2 stops29h 39mAir New Zealand
Deal found 15/4$1,860
Thu 21/809:20SYD - PHL
3 stops50h 47mAir Canada
Sun 31/807:30PHL - SYD
2 stops57h 50mAir Canada
Deal found 15/4$2,096
Thu 10/709:25SYD - PHL
2 stops27h 38mDelta
Tue 29/715:10PHL - SYD
2 stops25h 25mDelta
Deal found 14/4$2,530
Thu 17/709:10SYD - PHL
1 stop29h 32mQantas Airways
Mon 4/815:51PHL - SYD
1 stop25h 14mQantas Airways
Deal found 14/4$2,628
Thu 17/710:20SYD - PHL
3 stops28h 10mUnited Airlines
Tue 5/817:11PHL - SYD
2 stops23h 49mUnited Airlines
Deal found 14/4$2,902
Thu 17/708:55SYD - PHL
3 stops28h 22mAir Tahiti Nui
Tue 5/819:00PHL - SYD
3 stops30h 10mAir Tahiti Nui
Deal found 15/4$2,928
Mon 5/506:00SYD - PHL
2 stops31h 53mFiji Airways
Wed 14/518:00PHL - SYD
2 stops27h 45mFiji Airways
Deal found 14/4$2,942
Thu 29/508:55SYD - PHL
2 stops67h 16mJapan Airlines
Fri 24/1006:31PHL - SYD
2 stops33h 49mJapan Airlines
Deal found 14/4$8,634
Tue 9/907:40SYD - PHL
2 stops30h 14mCathay Pacific
Sat 1/1112:05PHL - SYD
2 stops32h 55mCathay Pacific
Deal found 14/4$9,332
Thu 11/910:20SYD - PHL
1 stop21h 07mVirgin Australia
Tue 28/1006:00PHL - SYD
1 stop36h 15mVirgin Australia
Deal found 14/4$14,143
Tue 9/914:50SYD - PHL
1 stop32h 10mQatar Airways
Sun 2/1110:30PHL - SYD
2 stops40h 20mQatar Airways
Deal found 14/4$18,677

Cheapflights Fare Finder

Customise 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 647,157 searches. Data last updated 15 April 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

Thu 29/5

13:15-06:50

2 stops31h 35m

Philadelphia

Thu 5/6

17:35-12:15

2 stops28h 40m

$1,621

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 15/7

11:50-05:26

2 stops31h 36m

Philadelphia

Tue 5/8

06:20-08:45

2 stops36h 25m

$2,095

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 17/7

09:20-14:37

2 stops43h 17m

Philadelphia

Tue 5/8

09:45-07:20

2 stops55h 35m

$2,223

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 10/7

09:25-23:03

2 stops27h 38m

Philadelphia

Tue 29/7

15:10-06:35

2 stops25h 25m

$2,530

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 17/7

09:10-00:42

1 stop29h 32m

Philadelphia

Mon 4/8

15:51-07:05

1 stop25h 14m

$2,628

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 17/7

10:20-00:30

3 stops28h 10m

Philadelphia

Tue 5/8

17:11-07:00

2 stops23h 49m

$2,902

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 5/5

06:00-23:53

2 stops31h 53m

Philadelphia

Wed 14/5

18:00-11:45

2 stops27h 45m

$2,942

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 13/7

09:10-23:17

3 stops28h 07m

Philadelphia

Sun 3/8

17:35-17:50

3 stops34h 15m

$3,012

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 29/5

08:55-14:11

2 stops67h 16m

Philadelphia

Fri 24/10

06:31-07:20

2 stops33h 49m

$8,634

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/9

07:40-23:54

2 stops30h 14m

Philadelphia

Sat 1/11

12:05-12:00

2 stops32h 55m

$9,332

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 15 results
1
2

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 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 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 return flight from Sydney to Philadelphia. Price data was last updated on 11 April 2025.

The best time to book flights from Sydney to Philadelphia is 17 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Find hourly flight availability from Sydney to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

One of the essential ways to save on airfare from Sydney to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

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 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 15 April 2025.

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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.

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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.

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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.

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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.
8.0
Very Good

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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.

Entertainment

7.3

Overall

8.8

Crew

9.1

Boarding

8.7

Comfort

8.1

Food

7.8

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?

    Air New Zealand, at $2,095, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and Delta. Users have found that Air New Zealand is 2% cheaper than the other options available to this destination.

  • 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 holiday 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.

See more FAQs

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Fly from Sydney to Philadelphia on these airlines

Choose from the following airlines for your flight from Sydney to Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on 15 April 2025.

Top 6 airlines flying from Sydney to Philadelphia

Discover the top 6 airlines 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 647,157 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,219Average$1,241FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,569Average$1,941FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,659Average$1,956FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,754Average$2,733FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,820Average$2,128FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,920Average$2,927FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Sydney to Philadelphia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Philadelphia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to Philadelphia flexibly with Cheapflights today.

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