Cheap flights from Sydney to Philadelphia from $820
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 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
7 Dec — 14 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
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 Thursday or Friday and return on a Tuesday
Find 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 7 November 2025.
Thu 4/1211:20SYD - PHL
2 stops43h 30mAir Canada
Thu 11/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 5/11$1,248
Thu 4/1211:20SYD - PHL
1 stop21h 58mQantas Airways
Thu 11/1211:45PHL - SYD
1 stop27h 10mQantas Airways
Deal found 5/11$1,982
Fri 21/1121:40SYD - PHL
2 stops48h 07mAlaska Airlines
Sat 13/1218:54PHL - SYD
2 stops56h 51mAlaska Airlines
Deal found 6/11$2,070
Mon 24/1111:20SYD - PHL
2 stops43h 27mAir Canada
Tue 16/1207:50PHL - SYD
2 stops31h 05mAir Canada
Deal found 6/11$2,393
Thu 4/1221:40SYD - PHL
2 stops36h 13mAlaska Airlines
Thu 11/1207:06PHL - SYD
2 stops68h 39mAlaska Airlines
Deal found 6/11$2,407
Mon 1/1216:00SYD - PHL
2 stops38h 50mAir Canada
Wed 31/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 6/11$2,764
Sat 20/1221:40SYD - PHL
2 stops47h 57mAlaska Airlines
Sat 27/1207:00PHL - SYD
2 stops44h 45mAlaska Airlines
Deal found 5/11$3,065
Fri 21/1111:20SYD - PHL
2 stops44h 29mAir Canada
Sat 13/1215:30PHL - SYD
3 stops50h 05mAir Canada
Deal found 6/11$3,105
Thu 4/1212:10SYD - PHL
1 stop23h 31mUnited Airlines
Thu 11/1206:15PHL - SYD
1 stop35h 00mUnited Airlines
Deal found 6/11$3,125
Best flights from Sydney to Philadelphia
Discover carefully curated flight deals from Sydney to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 November 2025.
Thu 4/1211:20SYD - PHL
3 stops43h 30mAir Canada
Thu 11/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 5/11$1,257
Thu 4/1211:20SYD - PHL
1 stop21h 58mQantas Airways
Thu 11/1211:45PHL - SYD
1 stop27h 10mQantas Airways
Deal found 5/11$1,982
Fri 21/1121:40SYD - PHL
2 stops48h 07mAlaska Airlines
Sat 13/1218:54PHL - SYD
2 stops56h 51mAlaska Airlines
Deal found 6/11$2,070
Thu 4/1212:10SYD - PHL
2 stops26h 35mUnited Airlines
Thu 11/1206:15PHL - SYD
1 stop35h 00mUnited Airlines
Deal found 6/11$3,125
Thu 4/1221:40SYD - PHL
2 stops36h 13mAlaska Airlines
Thu 11/1207:06PHL - SYD
2 stops68h 39mAlaska Airlines
Deal found 6/11$2,407
Mon 1/1216:00SYD - PHL
2 stops38h 50mAir Canada
Wed 31/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 6/11$2,764
Mon 1/1211:20SYD - PHL
1 stop28h 26mQantas Airways
Wed 31/1215:41PHL - SYD
1 stop25h 19mQantas Airways
Deal found 6/11$3,145
Sat 20/1221:40SYD - PHL
2 stops47h 57mAlaska Airlines
Sat 27/1207:00PHL - SYD
2 stops44h 45mAlaska Airlines
Deal found 5/11$3,065
Fri 21/1111:20SYD - PHL
2 stops44h 29mAir Canada
Sat 13/1215:30PHL - SYD
3 stops50h 05mAir Canada
Deal found 6/11$3,105
Mon 24/1111:20SYD - PHL
1 stop22h 24mQantas Airways
Tue 16/1215:13PHL - SYD
1 stop25h 47mQantas Airways
Deal found 6/11$3,159
Last-minute flights from Sydney to Philadelphia
Discover last-minute flight deals from Sydney to Philadelphia. Data last updated 7 November 2025 and is based on user searches.
Fri 21/1121:40SYD - PHL
2 stops48h 07mAlaska Airlines
Sat 13/1218:54PHL - SYD
2 stops56h 51mAlaska Airlines
Deal found 6/11$2,070
Fri 21/1111:20SYD - PHL
2 stops44h 29mAir Canada
Sat 13/1215:30PHL - SYD
3 stops50h 05mAir Canada
Deal found 6/11$3,105
Mon 24/1111:20SYD - PHL
2 stops43h 27mAir Canada
Tue 16/1207:50PHL - SYD
2 stops31h 05mAir Canada
Deal found 6/11$2,393
Mon 1/1216:00SYD - PHL
2 stops38h 50mAir Canada
Wed 31/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 6/11$2,764
Thu 4/1211:20SYD - PHL
2 stops43h 30mAir Canada
Thu 11/1215:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 5/11$1,248
Thu 4/1211:20SYD - PHL
1 stop21h 58mQantas Airways
Thu 11/1211:45PHL - SYD
1 stop27h 10mQantas Airways
Deal found 5/11$1,982
Thu 4/1221:40SYD - PHL
2 stops36h 13mAlaska Airlines
Thu 11/1207:06PHL - SYD
2 stops68h 39mAlaska Airlines
Deal found 6/11$2,407
Thu 4/1212:10SYD - PHL
1 stop23h 31mUnited Airlines
Thu 11/1206:15PHL - SYD
1 stop35h 00mUnited Airlines
Deal found 6/11$3,125
Sat 20/1221:40SYD - PHL
2 stops47h 57mAlaska Airlines
Sat 27/1207:00PHL - SYD
2 stops44h 45mAlaska Airlines
Deal found 5/11$3,065
One-way flights from Sydney to Philadelphia
Search for one-way flight options from Sydney to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 7 November 2025.
Sat 22/1114:00SYD - PHL
3 stops30h 50mMultiple Airlines
Deal found 5/11$820
Sat 22/1107:45SYD - PHL
2 stops37h 35mAir New Zealand
Deal found 5/11$1,074
Sat 22/1107:05SYD - PHL
2 stops23h 33mQantas Airways
Deal found 6/11$1,296
Tue 18/1107:05SYD - PHL
2 stops26h 12mQantas Airways
Deal found 5/11$1,302
Tue 18/1121:40SYD - PHL
1 stop51h 25mQatar Airways
Deal found 6/11$1,620
Tue 18/1117:45SYD - PHL
3 stops32h 04mMultiple Airlines
Deal found 6/11$2,065
Cheap 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 7 November 2025.
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 7 November 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
Thu 4/12
11:20-14:50
3 stops43h 30m
Philadelphia
Thu 11/12
15:30-09:35
2 stops26h 05m
$1,257
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Thu 4/12
11:20-17:18
1 stop21h 58m
Philadelphia
Thu 11/12
11:45-06:55
1 stop27h 10m
$1,982
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Fri 21/11
21:40-05:47
2 stops48h 07m
Philadelphia
Sat 13/12
18:54-19:45
2 stops56h 51m
$2,070
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Thu 4/12
21:40-17:53
2 stops36h 13m
Philadelphia
Thu 11/12
07:06-19:45
2 stops68h 39m
$2,407
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Mon 1/12
16:00-14:50
2 stops38h 50m
Philadelphia
Wed 31/12
15:30-09:35
2 stops26h 05m
$2,764
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Sat 20/12
21:40-05:37
2 stops47h 57m
Philadelphia
Sat 27/12
07:00-19:45
2 stops44h 45m
$3,065
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Fri 21/11
11:20-15:49
2 stops44h 29m
Philadelphia
Sat 13/12
15:30-09:35
3 stops50h 05m
$3,105
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Thu 4/12
12:10-22:45
2 stops26h 35m
Philadelphia
Thu 11/12
06:15-09:15
1 stop35h 00m
$3,125
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Mon 1/12
11:20-23:46
1 stop28h 26m
Philadelphia
Wed 31/12
15:41-09:00
1 stop25h 19m
$3,145
SydneyPhiladelphia
SYD - PHL
SYDPHL
Sydney Kingsford Smith
Mon 24/11
11:20-17:44
1 stop22h 24m
Philadelphia
Tue 16/12
15:13-09:00
1 stop25h 47m
$3,159
Flights are sorted by cheapest return flights first.
Deals found on 5/11
Showing 1-10 of 17 results
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
Prices
More
How far ahead should I book a flight from Sydney to Philadelphia?
Use this chart to determine the optimal time to book a return flight from Sydney to Philadelphia. Price data was last updated on 31 October 2025.
The best time to book flights from Sydney to Philadelphia is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 $1,065). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,507). 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.
What is the cheapest time of day to fly from SYD to PHL?
Find hourly flight availability from Sydney to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.
One of the essential ways to save on airfare from Sydney to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 28% on airfare.
How much does it cost for a return flight from Sydney to Philadelphia?
What’s the top stopover airport for flights from Sydney to Philadelphia?
Share of one-stop return flights from Sydney to Philadelphia chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Los Angeles (LAX) – chosen by Cheapflights users on 64% of one-stop itineraries from Sydney to Philadelphia on Cheapflights.
What’s the fastest stopover option from Sydney to Philadelphia?
Shortest average travel time for one-stop one-way flights from Sydney to Philadelphia, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 20h 44m.
What’s the fastest stopover option from Sydney to Philadelphia?
Shortest average travel time for one-stop one-way flights from Sydney to Philadelphia, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 20h 44m.
Which airport typically offers the quickest stopover for flights from Sydney to Philadelphia?
Average stopover duration for one-stop one-way flights from Sydney to Philadelphia, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 00m.
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 7 November 2025.
Get a feel of what it's like to fly with Delta, Qantas Airways, andUnited 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.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
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 21h 58m. The distance between Sydney and Philadelphia is about 15871 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Sydney to Philadelphia round-trip?
Delta, at $1,184, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include United Airlines and Air Canada. Users have found that Delta is 44% cheaper than the other options available to this destination.
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 $1,065). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,507). 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.
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.
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 7 November 2025.
Discover the top 6 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 7 November 2025.
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!
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.