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Cheap flights from Sydney to Philadelphia from $768

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

$1,243

One-way from

$768

Popular in

December

Cheapest in

February

Average price

$1,229
Delta
  • Delta
  • 3/3-13/3
  • 4 total stops
  • 54h 10m total
  • Sydney to Philadelphia
4/3
  • 4/3
  • 2 total stops
  • 25h 51m total
  • Sydney to Philadelphia
Highest demand for flights based on searches. 17% potential increase in price ($716 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($141 potential savings vs. average return price).
Average for round-trip flights in February 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 21 February 2025.

Sat 1/311:05SYD - PHL
2 stops28h 47mDelta
Thu 13/311:36PHL - SYD
2 stops27h 29mDelta
Deal found 20/2$1,243
Sun 6/409:10SYD - PHL
2 stops34h 21mMultiple Airlines
Sun 13/406:40PHL - SYD
2 stops34h 25mMultiple Airlines
Deal found 20/2$1,656
Tue 4/311:20SYD - PHL
2 stops43h 30mAir Canada
Thu 13/315:30PHL - SYD
3 stops50h 05mAir Canada
Deal found 20/2$1,751
Tue 25/221:25SYD - PHL
1 stop25h 24mQantas Airways
Tue 4/313:45PHL - SYD
1 stop27h 15mQantas Airways
Deal found 20/2$1,798
Sat 1/312:10SYD - PHL
2 stops27h 11mUnited Airlines
Wed 12/311:50PHL - SYD
2 stops28h 10mUnited Airlines
Deal found 20/2$1,894
Wed 26/211:15SYD - PHL
2 stops22h 38mAmerican Airlines
Thu 6/312:35PHL - SYD
2 stops26h 50mAmerican Airlines
Deal found 20/2$1,988
Sun 6/407:20SYD - PHL
3 stops30h 34mAir Tahiti Nui
Sun 13/419:05PHL - SYD
3 stops32h 45mAir Tahiti Nui
Deal found 20/2$3,272

Find flights from Sydney to Philadelphia within your budget

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 21 February 2025.

Fly from

Sydney

Fly to

Philadelphia

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 3/3

11:05-20:39

2 stops25h 34m

Philadelphia

Thu 13/3

10:29-06:05

2 stops28h 36m

$1,243

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 6/4

09:10-05:31

2 stops34h 21m

Philadelphia

Sun 13/4

06:40-07:05

2 stops34h 25m

$1,656

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 4/3

11:20-14:50

2 stops43h 30m

Philadelphia

Thu 13/3

15:30-08:35

3 stops50h 05m

$1,751

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 4/3

11:15-19:24

1 stop24h 09m

Philadelphia

Thu 13/3

13:51-09:00

1 stop28h 09m

$1,866

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 3/3

12:10-21:34

2 stops25h 24m

Philadelphia

Thu 13/3

16:45-09:15

1 stop25h 30m

$1,894

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/4

09:10-17:50

1 stop22h 40m

Philadelphia

Wed 16/4

13:55-07:05

1 stop27h 10m

$2,810

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 6/4

07:20-23:54

3 stops30h 34m

Philadelphia

Sun 13/4

19:05-17:50

3 stops32h 45m

$3,272

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 4/3

14:00-23:51

2 stops25h 51m

$768

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 25/3

10:05-20:50

2 stops25h 45m

$776

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 21/4

09:10-23:54

1 stop28h 44m

$1,577

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 14 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.

Travel insights for flights from Sydney to Philadelphia

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

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 14 February 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 21 February 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 21 February 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Japan Airlines and Delta from Sydney to Philadelphia to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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.

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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.

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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.

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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.

Boarding

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

Overall

8.7

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?

    Delta, at $1,243, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and Qantas Airways. Users have found that Delta is 42% cheaper than the other options available to this destination.

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

    $776 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and Air Tahiti Nui, with prices starting from $1,577 and $1,863, respectively.

  • 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 21 February 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,207Average$1,228FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,553Average$2,022FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,643Average$1,917FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,745Average$2,608FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,802Average$2,121FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,872Average$2,867FlexibilityNo 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.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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