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$781+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
May 29 — Jun 51
Fri 5/29
Fri 6/5
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 April 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:50 pm
SYD
-
PHL
1 stop29h 26m
Multiple Airlines
Wed 6/1711:06 am
PHL
-
SYD
2 stops30h 24m
Multiple Airlines
Deal found 4/26$1,369
This United Airlines deal was found by Cheapflights users on 4/27. 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 6/1110:20 am
SYD
-
PHL
1 stop20h 57m
United Airlines
Thu 6/1811:38 am
PHL
-
SYD
2 stops29h 22m
United Airlines
Deal found 4/27$1,403
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:50 pm
SYD
-
PHL
2 stops25h 47m
Multiple Airlines
Mon 6/87:50 pm
PHL
-
SYD
1 stop45h 40m
Multiple Airlines
Deal found 4/27$1,506
This Aunt Betty deal was found by Cheapflights users on 4/26. 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 6/1010:20 am
SYD
-
PHL
1 stop35h 30m
Virgin Australia
Wed 6/176:23 pm
PHL
-
SYD
1 stop22h 32m
Virgin Australia
Deal found 4/26$1,563
This Expedia deal was found by Cheapflights users on 4/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:20 am
SYD
-
PHL
1 stop20h 57m
Virgin Australia
Mon 6/86:23 pm
PHL
-
SYD
1 stop22h 32m
Virgin Australia
Deal found 4/27$1,566
This Delta deal was found by Cheapflights users on 4/27. 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.
Mon 6/19:15 am
SYD
-
PHL
2 stops34h 55m
Delta
Mon 6/89:46 am
PHL
-
SYD
2 stops31h 04m
Delta
Deal found 4/27$1,567
This BusinessClass deal was found by Cheapflights users on 4/27. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:20 am
SYD
-
PHL
1 stop20h 57m
Air New Zealand
Thu 6/186:23 pm
PHL
-
SYD
1 stop22h 32m
Air New Zealand
Deal found 4/27$1,671
This Delta deal was found by Cheapflights users on 4/26. 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.
Wed 6/109:15 am
SYD
-
PHL
2 stops24h 05m
Delta
Wed 6/177:23 am
PHL
-
SYD
2 stops33h 27m
Delta
Deal found 4/26$1,705
This Bravofly deal was found by Cheapflights users on 4/24. 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.
Wed 7/159:10 am
SYD
-
PHL
1 stop23h 18m
Qantas Airways
Wed 7/226:01 pm
PHL
-
SYD
1 stop23h 04m
Qantas Airways
Deal found 4/24$1,872
This Bravofly deal was found by Cheapflights users on 4/24. 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 25m
Qantas Airways
Sun 6/285:40 pm
PHL
-
SYD
1 stop23h 25m
Qantas Airways
Deal found 4/24$1,880

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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,369
(Kiwi.com)

One-way from

$781
(Trip.com)

Popular in

September

Cheapest in

October

Average price

$1,439
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
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 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

Wed 6/10

5:50 pm-9:16 am

1 stop29h 26m

Philadelphia

Wed 6/17

11:06 am-7:30 am

2 stops30h 24m

$1,369

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/11

10:20 am-11:30 pm

2 stops27h 10m

Philadelphia

Thu 6/18

11:38 am-7:00 am

2 stops29h 22m

$1,403

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/1

9:15 am-6:10 am

2 stops34h 55m

Philadelphia

Mon 6/8

9:46 am-6:50 am

2 stops31h 04m

$1,567

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 6/10

9:15 am-7:20 pm

2 stops24h 05m

Philadelphia

Wed 6/17

7:23 am-6:50 am

2 stops33h 27m

$1,705
Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 7/15

9:10 am-6:28 pm

1 stop23h 18m

Philadelphia

Wed 7/22

6:01 pm-7:05 am

1 stop23h 04m

$1,872

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

5:50 pm-7:05 am

1 stop27h 15m

Philadelphia

Sun 6/28

5:40 pm-7:05 am

1 stop23h 25m

$1,880

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 7/15

11:55 am-10:29 pm

2 stops24h 34m

Philadelphia

Wed 7/22

6:15 am-6:10 pm

2 stops45h 55m

$1,924

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-6:54 pm

2 stops23h 44m

Philadelphia

Sun 6/28

4:22 pm-7:05 am

2 stops24h 43m

$1,929

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:15 am-6:08 am

2 stops34h 53m

Philadelphia

Sun 6/28

6:25 am-6:50 am

2 stops34h 25m

$1,932
Cheapest one-way

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/5

9:10 am-12:25 pm

2 stops41h 15m

$781

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 16 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 April.
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

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

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 79 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, October is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $1,135). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $1,990). 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 23h 18m. United Airlines provides one of the quickest options available for as low as $1,872. 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, October is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $1,135). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $1,990). 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
King of Prussia
Reading
Camden
Ocean City
Lewes
Dewey Beach
Pottstown
Vineland
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Chester
Newark

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