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Cheap flights from Sydney to Philadelphia from $653

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
14 Mar — 21 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 12 February 2026.

Thu 19/211:20
SYD
-
PHL
2 stops43h 27m
Air Canada
Mon 23/207:50
PHL
-
SYD
2 stops33h 45m
Air Canada
Deal found 8/2$1,371
Thu 18/609:20
SYD
-
PHL
2 stops43h 29m
Air Canada
Sun 28/610:05
PHL
-
SYD
2 stops31h 15m
Air Canada
Deal found 9/2$1,582
Thu 19/211:20
SYD
-
PHL
1 stop24h 28m
American Airlines
Mon 23/221:30
PHL
-
SYD
2 stops41h 55m
American Airlines
Deal found 8/2$1,624
Thu 19/211:50
SYD
-
PHL
1 stop20h 52m
United Airlines
Mon 23/217:55
PHL
-
SYD
1 stop45h 05m
United Airlines
Deal found 8/2$1,640
Thu 26/317:45
SYD
-
PHL
1 stop27h 06m
Qantas Airways
Thu 2/414:18
PHL
-
SYD
1 stop26h 47m
Qantas Airways
Deal found 8/2$1,679
Thu 26/313:15
SYD
-
PHL
2 stops31h 26m
Delta
Thu 2/412:26
PHL
-
SYD
2 stops28h 24m
Delta
Deal found 8/2$1,713
Thu 26/309:00
SYD
-
PHL
2 stops25h 42m
American Airlines
Thu 2/410:45
PHL
-
SYD
1 stop30h 20m
American Airlines
Deal found 8/2$1,719
Tue 17/310:20
SYD
-
PHL
2 stops27h 24m
Air Canada
Tue 31/309:15
PHL
-
SYD
2 stops32h 05m
Air Canada
Deal found 11/2$1,817
Thu 12/211:20
SYD
-
PHL
2 stops24h 48m
American Airlines
Wed 25/211:35
PHL
-
SYD
2 stops29h 25m
American Airlines
Deal found 10/2$1,863
Tue 17/311:20
SYD
-
PHL
1 stop33h 31m
American Airlines
Tue 31/316:33
PHL
-
SYD
2 stops24h 32m
American Airlines
Deal found 11/2$1,868

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 12 February 2026.

Round-trip from

$1,401

One-way from

$653

Popular in

May

Cheapest in

February

Average price

$1,102
Air Canada
  • Air Canada
  • 16/6-6/7
  • 4 total stops
  • 75h 13m total
  • Sydney to Philadelphia
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 30h 24m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($95 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
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 12 February 2026.
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 18/6

09:20-14:49

2 stops43h 29m

Philadelphia

Sun 28/6

10:05-07:20

2 stops31h 15m

$1,582

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 26/3

13:15-05:41

2 stops31h 26m

Philadelphia

Thu 2/4

12:26-07:50

2 stops28h 24m

$1,713

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 26/3

09:00-19:42

2 stops25h 42m

Philadelphia

Thu 2/4

10:45-08:05

1 stop30h 20m

$1,719

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 17/3

10:20-22:44

2 stops27h 24m

Philadelphia

Tue 31/3

09:15-08:20

2 stops32h 05m

$1,817

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 17/3

11:20-22:59

1 stop26h 39m

Philadelphia

Tue 31/3

10:45-08:05

1 stop30h 20m

$1,868

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 28/3

17:45-05:51

1 stop27h 06m

Philadelphia

Sat 11/4

15:43-07:05

1 stop25h 22m

$1,946

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 28/3

09:40-17:28

2 stops22h 48m

Philadelphia

Sat 11/4

06:05-06:50

2 stops34h 45m

$1,957

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 18/6

09:15-00:25

2 stops29h 10m

Philadelphia

Sun 28/6

06:45-06:50

2 stops34h 05m

$2,271

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 18/6

09:30-00:45

2 stops29h 15m

Philadelphia

Sun 28/6

18:30-06:55

1 stop22h 25m

$2,320

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 26/3

10:25-14:47

3 stops43h 22m

Philadelphia

Thu 2/4

16:25-08:20

2 stops48h 55m

$2,427

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 18 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

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 6 February 2026.

The best time to book flights from Sydney to Philadelphia is 17 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 $599). Flying from Sydney to Philadelphia in May is currently the most expensive (average of $1,301). 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.

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 12 February 2026.
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.
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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.
Delta
7.9
Good
8,181 reviews
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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.
Qantas Airways
7.5
Good
988 reviews
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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.
United Airlines
7.4
Good
9,281 reviews
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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.
American Airlines
7.2
Good
11,271 reviews
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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.
Air Canada
7.1
Good
10,709 reviews
Delta
7.9
Good
8,181 reviews
Check prices

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

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 25h 42m. 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?

    United Airlines, at $598, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Delta and Air Canada. Users have found that United Airlines is 68% cheaper than the other options available to this destination.

  • 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 holiday 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 $599). Flying from Sydney to Philadelphia in May is currently the most expensive (average of $1,301). 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

Browse thousands of different options on Cheapflights for your next trip

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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 12 February 2026.
Qantas Airways flights from Sydney Kingsford Smith to Philadelphia
Air Canada flights from Sydney Kingsford Smith to Philadelphia
Air New Zealand flights from Sydney Kingsford Smith to Philadelphia

Top 6 airlines flying from Sydney to Philadelphia

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 12 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$598Average$1,695FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$1,082Average$1,102FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,349Average$1,598FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,537Average$2,582FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,545Average$1,684FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,686Average$2,017FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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!

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