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Cheap flights from Sydney to Philadelphia from $1,123

SYD — PHL
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Philadelphia

Thu 5/1111:10 -
2 stops34h 05m
Mon 9/1107:00 -
1 stop31h 55m
Deal found 19/9$1,809
Wed 2/1221:25 -
1 stop25h 55m
Wed 27/115:55 -
1 stop25h 05m
Deal found 20/9$2,011
Fri 6/1111:50 -
2 stops35h 49m
Fri 13/1106:00 -
2 stops36h 35m
Deal found 22/9$2,013
Sun 22/1114:00 -
3 stops50h 53m
Sat 5/1208:34 -
3 stops36h 01m
Deal found 23/9$2,034
Fri 4/1211:20 -
1 stop22h 29m
Tue 26/110:40 -
2 stops27h 55m
Deal found 20/9$2,082
Fri 2/1017:50 -
2 stops29h 15m
Sat 17/1005:50 -
2 stops34h 40m
Deal found 22/9$2,108
Sun 22/1111:10 -
1 stop35h 58m
Sat 5/1210:30 -
1 stop30h 30m
Deal found 23/9$2,135
Fri 6/1111:10 -
1 stop25h 04m
Fri 13/1113:47 -
1 stop27h 13m
Deal found 22/9$2,152
Fri 4/1211:20 -
1 stop28h 30m
Thu 28/114:29 -
1 stop26h 31m
Deal found 20/9$2,154

Find flight deals from Sydney to Philadelphia

Round-trip from

$1,809

One-way from

$1,123

Popular in

September

Cheapest in

July

Average price

$3,467
American Airlines
  • American Airlines
  • 5/11-9/11
  • 3 total stops
  • 66h 00m total
  • Sydney to Philadelphia
Search Deals
12/10-31/12
  • 12/10-31/12
  • 2 total stops
  • 35h 48m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($279 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($184 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 25/12

11:20-16:37

1 stop21h 17m

Philadelphia

Wed 31/12

00:00-15:00

Nonstop0h 00m

$1,862

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 5/11

11:10-05:15

2 stops34h 05m

Philadelphia

Mon 9/11

07:00-06:55

1 stop31h 55m

$2,262

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 6/11

11:50-22:57

2 stops27h 07m

Philadelphia

Fri 13/11

09:45-08:35

3 stops30h 50m

$2,285

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 25/12

11:20-14:44

3 stops43h 24m

Philadelphia

Wed 31/12

00:00-15:00

Nonstop0h 00m

$2,467

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 24/11

10:40-17:38

2 stops22h 58m

Philadelphia

Wed 31/12

00:00-15:00

Nonstop0h 00m

$2,485

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 22/11

09:55-22:57

2 stops29h 02m

Philadelphia

Sat 5/12

09:45-10:35

3 stops32h 50m

$2,556

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 3/1

21:25-17:11

3 stops59h 46m

Philadelphia

Wed 31/12

00:00-15:00

Nonstop0h 00m

$2,670

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 24/12

09:10-18:58

1 stop25h 48m

Philadelphia

Mon 25/1

18:13-09:20

1 stop23h 07m

$2,683

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 8/12

10:40-17:47

2 stops23h 07m

Philadelphia

Sun 24/1

06:35-06:50

2 stops32h 15m

$2,794

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 6/12

10:40-18:26

2 stops23h 46m

Philadelphia

Sat 23/1

18:13-06:50

2 stops44h 37m

$2,875

Flights are sorted by cheapest return flights first.

Deals found on 24/9

Showing 1-10 of 12 resultsSorted by cheapest first
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

Cheapflights Insights

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

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

Currently, July is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $1,487). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,467). 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.

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

Airfare is below average for this route at the moment.

Sydney to Philadelphia flights typically cost between $2,327 and $2,834 in November.
The cheapest return price found within the last 5 days was $1,809 on American Airlines (5 Nov–9 Nov).

Reviews of airlines servicing Philadelphia

Get a feel of what it's like to fly with Qantas Airways,United Airlines, andAmerican 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.
Qantas Airways
7.5
Good
1,101 reviews
Check prices

Food

7.0

Entertainment

7.2

Boarding

7.7

Comfort

7.4

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
Qantas Airways
7.5
Good
1,101 reviews
Qantas Airways
7.5
Good
1,101 reviews
Check prices

Food

7.0

Entertainment

7.2

Boarding

7.7

Comfort

7.4

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
United Airlines
7.4
Good
10,233 reviews
Qantas Airways
7.5
Good
1,101 reviews
Check prices

Food

7.0

Entertainment

7.2

Boarding

7.7

Comfort

7.4

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
American Airlines
7.0
Good
12,074 reviews
Qantas Airways
7.5
Good
1,101 reviews
Check prices

Food

7.0

Entertainment

7.2

Boarding

7.7

Comfort

7.4

Overall

7.5

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

Related info for your journey

  • How long is the flight from Sydney to Philadelphia?

    Departing from Sydney to Philadelphia will take you 34h 05m. The distance between Sydney and Philadelphia is about 15871 km.

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

    United Airlines, at $606, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Qantas Airways and American Airlines. Users have found that United Airlines is 70% 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, July is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $1,487). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,467). 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

Fly from Sydney to Philadelphia on these airlines

Qantas Airways flights from Sydney Kingsford Smith to Philadelphia

Top 3 airlines flying from Sydney to Philadelphia

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$1,488FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,564Average$2,833FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,830Average$2,167FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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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.

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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.

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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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