Cheap flights from Sydney to Philadelphia from $1,218

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 Thursday or Friday and return on a Tuesday

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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 14 November 2025.

Thu 4/1211:45SYD - PHL
2 stops27h 00mAir New Zealand
Sun 7/1206:15PHL - SYD
2 stops34h 30mAir New Zealand
Deal found 12/11$1,746
Thu 4/1211:45SYD - PHL
3 stops42h 22mMultiple Airlines
Sun 7/1206:15PHL - SYD
2 stops34h 30mMultiple Airlines
Deal found 12/11$2,107
Fri 21/1107:05SYD - PHL
2 stops24h 43mQantas Airways
Thu 27/1111:00PHL - SYD
1 stop30h 00mQantas Airways
Deal found 13/11$2,353
Fri 21/1121:40SYD - PHL
2 stops48h 07mAlaska Airlines
Thu 27/1107:10PHL - SYD
2 stops44h 35mAlaska Airlines
Deal found 13/11$2,565
Wed 24/1221:40SYD - PHL
2 stops36h 04mMultiple Airlines
Mon 2/214:30PHL - SYD
1 stop26h 30mMultiple Airlines
Deal found 13/11$2,707
Wed 24/1221:40SYD - PHL
2 stops47h 57mAlaska Airlines
Mon 2/318:20PHL - SYD
2 stops57h 25mAlaska Airlines
Deal found 13/11$2,730
Thu 4/1211:20SYD - PHL
1 stop28h 29mAmerican Airlines
Sun 7/1217:00PHL - SYD
1 stop24h 00mAmerican Airlines
Deal found 12/11$2,809
Mon 29/1211:20SYD - PHL
1 stop22h 10mAmerican Airlines
Tue 30/1214:02PHL - SYD
1 stop26h 58mAmerican Airlines
Deal found 13/11$2,823
Thu 4/1211:20SYD - PHL
3 stops43h 30mAir Canada
Sun 7/1215:30PHL - SYD
3 stops50h 05mAir Canada
Deal found 12/11$2,966

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 14 November 2025.

Round-trip from

$1,619

One-way from

$1,218

Popular in

May

Cheapest in

February

Average price

$2,498
Air New Zealand
  • Air New Zealand
  • 4/3-16/3
  • 4 total stops
  • 59h 05m total
  • Sydney to Philadelphia
25/11
  • 25/11
  • 3 total stops
  • 57h 26m total
  • Sydney to Philadelphia
Highest demand for flights based on searches. 3% potential increase in price ($105 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($110 potential savings vs. average return price).
Average for round-trip flights in November 2025

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 14 November 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

Sat 7/3

11:20-22:46

2 stops27h 26m

Philadelphia

Tue 10/3

15:30-08:35

2 stops26h 05m

$1,978

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/3

11:20-15:49

2 stops44h 29m

Philadelphia

Tue 10/3

15:30-08:35

2 stops26h 05m

$2,030

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 4/12

11:45-14:07

3 stops42h 22m

Philadelphia

Sun 7/12

06:15-08:45

2 stops34h 30m

$2,107

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/5

09:10-17:55

1 stop22h 45m

Philadelphia

Fri 15/5

19:05-07:05

1 stop22h 00m

$2,435

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 24/12

21:40-17:44

2 stops36h 04m

Philadelphia

Mon 2/2

14:30-09:00

1 stop26h 30m

$2,707

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 26/11

14:15-00:30

3 stops50h 15m

$1,247

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 28/11

13:55-05:14

2 stops31h 19m

$1,251

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 27/11

06:30-14:38

2 stops24h 08m

$1,318

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 25/11

06:00-23:59

2 stops33h 59m

$1,332

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 26/11

21:55-14:38

2 stops32h 43m

$1,360

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 17 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 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 7 November 2025.

The best time to book flights from Sydney to Philadelphia is 59 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 month to book a flight from Sydney to Philadelphia?

Currently, November is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $650). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,491). 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 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 14 November 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 28% on airfare.

How much does it cost for a return flight from Sydney to Philadelphia?

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 14 November 2025.
Get a feel of what it's like to fly with Delta, Qantas Airways, andUnited Airlines from Sydney to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.
  • How long is the flight from Sydney to Philadelphia?

    Departing from Sydney to Philadelphia will take you 27h 26m. The distance between Sydney and Philadelphia is about 15871 km.

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

    Delta, at $1,174, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include United Airlines and Air Canada. Users have found that Delta is 44% 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.

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

    Currently, November is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $650). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,491). 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

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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 14 November 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,174Average$1,196FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,221Average$2,455FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,467Average$1,766FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,678Average$1,878FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapest$1,705Average$2,807FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,851Average$2,165FlexibilityNo cancel feeOn-time71%
Search American 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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