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$629+ Cheap flights from Sydney (SYD) to Philadelphia (PHL)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
Jul 13 — Jul 201
Mon 7/13
Mon 7/20
1 adult, Economy
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Cheap 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 June 13, 2026.

This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2210:20 am
SYD
-
PHL
1 stop29h 09m
United Airlines
Mon 6/296:23 pm
PHL
-
SYD
1 stop22h 32m
United Airlines
Deal found 6/11$1,013
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:20 am
SYD
-
PHL
1 stop20h 57m
United Airlines
Tue 7/289:25 am
PHL
-
SYD
1 stop31h 30m
United Airlines
Deal found 6/10$1,017
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
SYD
-
PHL
2 stops25h 57m
United Airlines
Wed 9/163:05 pm
PHL
-
SYD
2 stops25h 55m
United Airlines
Deal found 6/9$1,018
This Ovago deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:50 pm
SYD
-
PHL
1 stop40h 19m
Qantas Airways
Mon 8/174:56 pm
PHL
-
SYD
2 stops23h 59m
Qantas Airways
Deal found 6/12$1,041
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:15 am
SYD
-
PHL
2 stops34h 14m
Delta
Tue 8/46:05 am
PHL
-
SYD
2 stops34h 45m
Delta
Deal found 6/13$1,180
This BYOjet deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:20 am
SYD
-
PHL
1 stop20h 57m
Virgin Australia
Tue 7/289:25 am
PHL
-
SYD
1 stop31h 30m
Virgin Australia
Deal found 6/12$1,206
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:30 am
SYD
-
PHL
2 stops29h 53m
United Airlines
Mon 8/106:23 pm
PHL
-
SYD
1 stop22h 32m
United Airlines
Deal found 6/10$1,272
This Gurufare deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:00 pm
SYD
-
PHL
1 stop24h 22m
Qantas Airways
Mon 8/317:17 am
PHL
-
SYD
1 stop33h 48m
Qantas Airways
Deal found 6/9$1,296
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:20 am
SYD
-
PHL
1 stop29h 03m
Air New Zealand
Fri 8/79:25 am
PHL
-
SYD
1 stop31h 30m
Air New Zealand
Deal found 6/12$1,316

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 June 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,017
(United Airlines)

One-way from

$629
(United Airlines)

Popular in

September

Cheapest in

November

Average price

$1,828
Provider with most accurate pricing for Sydney Kingsford Smith-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Philadelphia flights.
Search Deals
From Sydney Kingsford Smith to Philadelphia
Search Deals
One-way flight from Sydney Kingsford Smith to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($76 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated June 13, 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 round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 7/21

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Tue 7/28

9:25 am-6:55 am

1 stop31h 30m

$1,017

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/27

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Mon 8/3

6:10 am-6:55 am

2 stops34h 45m

$1,017
Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 8/19

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Wed 9/16

5:07 pm-6:55 am

1 stop23h 48m

$1,018

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 7/28

9:15 am-5:29 am

2 stops34h 14m

Philadelphia

Tue 8/4

6:05 am-6:50 am

2 stops34h 45m

$1,180

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:30 am-12:57 am

2 stops29h 27m

Philadelphia

Mon 8/10

3:10 pm-6:55 am

2 stops25h 45m

$1,272
Cheapest one-way

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/24

10:20 am-7:49 am

1 stop35h 29m

$629

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 12/1

11:20 am-10:30 pm

2 stops27h 10m

$806

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 11/22

12:10 pm-2:22 pm

3 stops42h 12m

$873

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 10/9

10:30 am-2:43 pm

3 stops43h 13m

$912

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 11/24

10:40 am-5:41 am

2 stops35h 01m

$1,965

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Sydney to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Philadelphia in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $1,139). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $2,335). 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 to fly round-trip from Sydney to Philadelphia?

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?

    A quick flight from Sydney to Philadelphia can take about 20h 57m. United Airlines provides one of the quickest options available for as low as $1,017. Airlines will cover a distance of 9862 mi.

  • 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 vacation 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 $1,139). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $2,335). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Reading
King of Prussia
Camden
Ocean City
Plymouth Meeting
Cherry Hill
Lewes
Dewey Beach
Pottstown
Ephrata
Milford
Wildwood Crest
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to Philadelphia

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