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Cheap flights from Sydney to Philadelphia from $1,100

SYD — PHL
22 Sep — 29 Sep1
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

Sun 30/809:10 -
2 stops35h 20m
Mon 14/905:15 -
2 stops35h 50m
Deal found 23/8$1,645
Thu 5/1111:20 -
2 stops33h 50m
Mon 9/1105:00 -
1 stop33h 55m
Deal found 21/8$1,651
Sat 19/909:10 -
2 stops37h 55m
Sat 26/908:41 -
2 stops32h 24m
Deal found 22/8$1,673
Mon 21/909:10 -
1 stop28h 34m
Mon 28/910:31 -
1 stop30h 34m
Deal found 22/8$1,902
Tue 6/1010:10 -
1 stop25h 28m
Tue 13/1017:30 -
1 stop23h 35m
Deal found 22/8$1,932
Wed 21/1010:10 -
2 stops34h 16m
Sun 25/1017:30 -
1 stop22h 25m
Deal found 19/8$1,992

Find flight deals from Sydney to Philadelphia

Round-trip from

$1,651

One-way from

$1,100

Popular in

September

Cheapest in

July

Average price

$1,560
American Airlines
  • American Airlines
  • 5/11-9/11
  • 3 total stops
  • 67h 45m total
  • Sydney to Philadelphia
Search Deals
25/9
  • 25/9
  • 3 total stops
  • 39h 06m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($162 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($134 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 21/10

10:10-05:26

2 stops34h 16m

Philadelphia

Sun 25/10

20:32-06:55

1 stop43h 23m

$2,043
Fastest return journey

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 24/12

09:20-18:58

1 stop25h 38m

Philadelphia

Wed 20/1

18:13-09:20

1 stop23h 07m

$2,525

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 24/12

11:50-17:06

1 stop21h 16m

Philadelphia

Mon 25/1

08:15-07:00

1 stop30h 45m

$2,525

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 21/10

15:50-14:30

1 stop37h 40m

Philadelphia

Sun 25/10

21:45-19:20

1 stop30h 35m

$2,787

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 22/12

06:55-14:49

2 stops23h 54m

Philadelphia

Wed 20/1

14:30-09:00

1 stop26h 30m

$3,032

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 22/12

10:40-20:36

2 stops25h 56m

Philadelphia

Sun 24/1

09:42-06:50

2 stops29h 08m

$3,161

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 17/12

10:40-14:34

2 stops43h 54m

Philadelphia

Wed 6/1

09:42-08:30

2 stops30h 48m

$3,177

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 17/12

09:20-22:59

1 stop29h 39m

Philadelphia

Mon 4/1

15:50-09:05

2 stops25h 15m

$3,177

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 17/12

11:50-18:50

2 stops23h 00m

Philadelphia

Thu 31/12

13:01-09:20

2 stops28h 19m

$3,225

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 18/12

11:50-17:06

1 stop21h 16m

Philadelphia

Sat 2/1

18:10-06:20

1 stop44h 10m

$3,225

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
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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

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 $1,457). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,067). 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 typical for this route at the moment.

Sydney to Philadelphia flights typically cost between $1,578 and $2,606 in November.
The cheapest return price found within the last 5 days was $1,651 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
1,085 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.5

Boarding

7.7

Entertainment

7.2

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
1,085 reviews
Qantas Airways
7.5
Good
1,085 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.5

Boarding

7.7

Entertainment

7.2

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
10,115 reviews
Qantas Airways
7.5
Good
1,085 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.5

Boarding

7.7

Entertainment

7.2

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
7.1
Good
11,982 reviews
Qantas Airways
7.5
Good
1,085 reviews
Check prices

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.5

Boarding

7.7

Entertainment

7.2

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 25h 38m. The distance between Sydney and Philadelphia is about 15871 km. Both multi-stop and direct flights can be found to your destination and back.

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

    United Airlines, at $594, 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 $1,457). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,067). 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$594Average$1,457FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,522Average$2,697FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,673Average$1,958FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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