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$772+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 59 days in advance, depart on a Monday or Thursday and return on a Sunday

Cheap flight deals from Sydney to Philadelphia

Best flights from Sydney to Philadelphia
Discover carefully curated flight deals from Sydney to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This BestPriceTravel deal was found by Cheapflights users on 12/10. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/259:55 amSYD - PHL
2 stops41h 40mAir New Zealand
Sun 2/112:34 pmPHL - SYD
2 stops29h 56mAir New Zealand
Deal found 12/10$1,099
This Air New Zealand deal was found by Cheapflights users on 12/10. 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.
Sun 1/259:55 amSYD - PHL
3 stops44h 36mMultiple Airlines
Sun 2/112:34 pmPHL - SYD
2 stops29h 56mMultiple Airlines
Deal found 12/10$1,304
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2511:20 amSYD - PHL
2 stops43h 27mAir Canada
Sun 3/13:30 pmPHL - SYD
2 stops26h 05mAir Canada
Deal found 12/9$1,384
This BestPriceTravel deal was found by Cheapflights users on 12/10. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1410:20 amSYD - PHL
3 stops43h 27mAir Canada
Wed 4/229:15 amPHL - SYD
2 stops32h 05mAir Canada
Deal found 12/10$1,483
This oojo deal was found by Cheapflights users on 12/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:55 amSYD - PHL
2 stops33h 50mAir New Zealand
Wed 7/812:51 pmPHL - SYD
2 stops31h 49mAir New Zealand
Deal found 12/10$1,535
This Gotogate deal was found by Cheapflights users on 12/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2511:20 amSYD - PHL
2 stops43h 27mAir Canada
Sun 2/13:30 pmPHL - SYD
3 stops50h 05mAir Canada
Deal found 12/11$1,504

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,099
(BestPriceTravel)

One-way from

$772
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$1,696
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. 6% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

Fly from

Sydney

Fly to

Philadelphia

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 1/25

9:55 am-11:35 am

2 stops41h 40m

Philadelphia

Sun 2/1

12:34 pm-10:30 am

2 stops29h 56m

$1,099

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 1/25

9:55 am-2:31 pm

3 stops44h 36m

Philadelphia

Sun 2/1

12:34 pm-10:30 am

2 stops29h 56m

$1,304

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 2/25

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Sun 3/1

3:30 pm-9:35 am

2 stops26h 05m

$1,384

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 3/14

10:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Wed 4/22

9:15 am-7:20 am

2 stops32h 05m

$1,483

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 1/25

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Sun 2/1

3:30 pm-9:35 am

3 stops50h 05m

$1,504

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/8

11:55 am-7:45 am

2 stops33h 50m

Philadelphia

Wed 7/8

12:51 pm-10:40 am

2 stops31h 49m

$1,535

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/12

7:15 pm-11:14 am

3 stops55h 59m

$915

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 3/1

11:20 am-7:54 pm

1 stop24h 34m

$1,076

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/12

7:15 pm-8:16 pm

2 stops41h 01m

$1,088

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 1/9

11:25 am-3:55 pm

3 stops44h 30m

$1,282

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 16 results
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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Philadelphia flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

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 59 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 April is currently the most expensive (average of $977). 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?

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 December 12, 2025.
Read reviews from past customers who have flown Qantas Airways from Sydney to Philadelphia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Crew

8.1

Overall

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Crew

8.1

Overall

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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 41h 40m. Air New Zealand provides one of the quickest options available for as low as $1,099. Airlines will cover a distance of 9862 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Sydney to Philadelphia round-trip?

    Cheapflights users have booked flights from Sydney to Philadelphia round-trip from $1,123. Qantas Airways is currently priced 16% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Sydney to Philadelphia one-way?

    One-way options have recently been found by users for as low as $470 on Delta. Other airlines that offer cheap prices include American Airlines from $742 and Qantas Airways from $811 one-way.

  • 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 April is currently the most expensive (average of $977). 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
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Sydney to Philadelphia

Discover the top airline 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,123Average$1,262FlexibilityNo cancel feeOn-time74%

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