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Cheap flights from Sydney to Philadelphia from $1,236

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 31/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
23 Jul — 30 Jul1
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
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 23 June 2026.

Mon 13/709:30
SYD
-
PHL
2 stops25h 49m
United Airlines
Sun 26/708:05
PHL
-
SYD
2 stops32h 50m
United Airlines
Deal found 21/6$1,446
Thu 16/710:20
SYD
-
PHL
1 stop20h 57m
United Airlines
Tue 28/706:15
PHL
-
SYD
2 stops34h 45m
United Airlines
Deal found 18/6$1,453
Tue 21/710:20
SYD
-
PHL
1 stop20h 57m
United Airlines
Thu 20/818:36
PHL
-
SYD
1 stop22h 19m
United Airlines
Deal found 19/6$1,518
Fri 28/806:15
SYD
-
PHL
3 stops44h 11m
Multiple Airlines
Mon 31/810:40
PHL
-
SYD
3 stops35h 10m
Multiple Airlines
Deal found 21/6$1,679
Thu 22/1010:10
SYD
-
PHL
2 stops34h 25m
American Airlines
Mon 26/1005:00
PHL
-
SYD
1 stop34h 55m
American Airlines
Deal found 20/6$1,680
Thu 6/809:15
SYD
-
PHL
2 stops30h 04m
Delta
Thu 13/814:31
PHL
-
SYD
2 stops26h 19m
Delta
Deal found 21/6$1,728
Fri 28/809:15
SYD
-
PHL
2 stops26h 22m
Delta
Mon 31/810:00
PHL
-
SYD
2 stops30h 50m
Delta
Deal found 21/6$1,729
Thu 22/1010:30
SYD
-
PHL
2 stops23h 54m
United Airlines
Mon 26/1015:05
PHL
-
SYD
2 stops27h 15m
United Airlines
Deal found 19/6$1,816

Find 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 23 June 2026.

Round-trip from

$1,445

One-way from

$1,236

Popular in

September

Cheapest in

November

Average price

$2,610
United Airlines
  • United Airlines
  • 2/7-25/7
  • 5 total stops
  • 103h 56m total
  • Sydney to Philadelphia
Search Deals
American Airlines
  • American Airlines
  • 31/7
  • 1 total stop
  • 25h 30m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($384 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($154 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 23 June 2026.
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 - PHL

SYDPHL

Sydney Kingsford Smith

Mon 13/7

10:20-01:23

1 stop29h 03m

Philadelphia

Sun 26/7

08:05-06:55

2 stops32h 50m

$1,446

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 16/7

10:20-17:17

1 stop20h 57m

Philadelphia

Tue 28/7

06:15-07:00

2 stops34h 45m

$1,453
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 21/7

10:20-00:57

2 stops28h 37m

Philadelphia

Thu 20/8

18:36-06:55

1 stop22h 19m

$1,518

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 22/10

10:10-05:35

2 stops34h 25m

Philadelphia

Mon 26/10

05:00-06:55

1 stop34h 55m

$1,679

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 28/8

09:15-21:37

2 stops26h 22m

Philadelphia

Mon 31/8

10:00-06:50

2 stops30h 50m

$1,729

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 22/10

10:30-19:24

2 stops23h 54m

Philadelphia

Mon 26/10

15:05-09:20

2 stops27h 15m

$1,816
Cheapest one-way

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

09:10-20:40

1 stop25h 30m

$1,236

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

09:30-05:31

3 stops34h 01m

$1,241

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 27/6

10:20-01:23

1 stop29h 03m

$1,242

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

11:55-07:50

2 stops33h 55m

$2,894

Flights are sorted by cheapest return flights first.

Deals found on 20/6

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
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

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 $1,645). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,334). 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?

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 23 June 2026.
Get a feel of what it's like to fly with Qantas Airways and American 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
1,048 reviews
Check prices

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.5

Food

7.0

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
1,048 reviews
Qantas Airways
7.5
Good
1,048 reviews
Check prices

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.5

Food

7.0

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
11,747 reviews
Qantas Airways
7.5
Good
1,048 reviews
Check prices

Overall

7.5

Boarding

7.7

Crew

8.1

Comfort

7.5

Food

7.0

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

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 29h 03m. The distance between Sydney and Philadelphia is about 15871 km.

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

    Qantas Airways, at $1,559, was found to be the cheapest airline from Sydney to Philadelphia. An alternate airline flying to your destination would be American Airlines. Users have found that Qantas Airways is 27% 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 $1,645). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $3,334). 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

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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 23 June 2026.
Qantas Airways flights from Sydney Kingsford Smith to Philadelphia

Top 2 airlines flying from Sydney to Philadelphia

Discover the top 2 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 23 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,559Average$2,306FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,732Average$1,939FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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