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$726+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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1. Tell us where you want to go

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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 March 12, 2026.

This BYOjet deal was found by Cheapflights users on 3/10. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:55 am
SYD
-
PHL
2 stops36h 20m
Air New Zealand
Fri 5/19:30 am
PHL
-
SYD
2 stops35h 10m
Air New Zealand
Deal found 3/10$1,151
This Air New Zealand deal was found by Cheapflights users on 3/10. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:55 am
SYD
-
PHL
2 stops26h 30m
Multiple Airlines
Fri 5/19:55 am
PHL
-
SYD
3 stops32h 50m
Multiple Airlines
Deal found 3/10$1,325
This Bravofly deal was found by Cheapflights users on 3/10. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:10 am
SYD
-
PHL
1 stop23h 15m
Qantas Airways
Sun 6/285:43 pm
PHL
-
SYD
1 stop23h 22m
Qantas Airways
Deal found 3/10$1,517
This Aunt Betty deal was found by Cheapflights users on 3/12. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:45 pm
SYD
-
PHL
2 stops34h 37m
ANA
Sun 10/251:00 pm
PHL
-
SYD
2 stops40h 15m
ANA
Deal found 3/12$1,631
This Aunt Betty deal was found by Cheapflights users on 3/12. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:10 am
SYD
-
PHL
1 stop21h 27m
Qantas Airways
Sun 10/255:43 pm
PHL
-
SYD
1 stop23h 17m
Qantas Airways
Deal found 3/12$1,642

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,151
(BYOjet)

One-way from

$726
(Jetabroad)

Popular in

May

Cheapest in

October

Average price

$1,207
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. 0% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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
Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-6:25 pm

1 stop23h 15m

Philadelphia

Sun 6/28

5:43 pm-7:05 am

1 stop23h 22m

$1,580

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-6:25 pm

1 stop23h 15m

Philadelphia

Sun 6/28

3:45 pm-7:30 am

2 stops25h 45m

$1,648

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:15 am-8:36 am

2 stops37h 21m

Philadelphia

Sun 6/28

6:15 am-6:50 am

2 stops34h 35m

$1,663

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 5/1

9:10 am-5:38 am

2 stops34h 28m

Philadelphia

Tue 5/5

12:53 pm-6:55 am

1 stop28h 02m

$1,715

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 4/22

9:10 am-2:20 pm

2 stops43h 10m

Philadelphia

Sat 4/25

8:38 pm-6:55 am

1 stop44h 17m

$1,814

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 4/22

8:55 am-6:43 pm

2 stops47h 48m

Philadelphia

Wed 4/29

7:15 am-6:20 am

2 stops33h 05m

$1,824

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 4/22

8:55 am-6:43 pm

2 stops47h 48m

Philadelphia

Sat 4/25

10:40 am-6:20 am

2 stops29h 40m

$1,912
Cheapest one-way

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 5/12

11:55 am-8:00 am

2 stops34h 05m

$732

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 4/14

1:15 pm-10:53 am

3 stops35h 38m

$741

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 5/12

6:20 am-12:25 pm

3 stops44h 05m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 19 resultsSorted by cheapest first
1
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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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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

How far ahead should I book a flight from Sydney to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Sydney to Philadelphia. Price data was last updated on March 6, 2026.

The price you pay for your flight from Sydney to Philadelphia may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $426). Flying from Sydney to Philadelphia in May is currently the most expensive (average of $897). 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.

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 23h 15m. Qantas Airways provides one of the quickest options available for as low as $1,580. Airlines will cover a distance of 9862 mi. This flight may include one or multiple stops.

  • 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 $426). Flying from Sydney to Philadelphia in May is currently the most expensive (average of $897). 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
Cherry Hill
Lewes
Dewey Beach
Pottstown
Ephrata
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Chester

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Alternative routes for Sydney to Philadelphia

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