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Cheap flights from Sydney to Philadelphia from $1,490

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
13 Feb — 20 Feb1
1 adult
1 adult, Economy, 0 bags

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 14 January 2026.

Round-trip from

$1,738

One-way from

$1,490

Popular in

May

Cheapest in

February

Average price

$2,530
Air New Zealand
  • Air New Zealand
  • 5/3-18/3
  • 4 total stops
  • 72h 29m total
  • Sydney to Philadelphia
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20/6
  • 20/6
  • 3 total stops
  • 37h 13m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($197 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($115 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 14 January 2026.

Thu 5/309:55
SYD
-
PHL
2 stops37h 20m
Air New Zealand
Wed 18/308:21
PHL
-
SYD
2 stops35h 09m
Air New Zealand
Deal found 12/1$1,738
Thu 12/211:20
SYD
-
PHL
2 stops43h 27m
Air Canada
Thu 12/315:30
PHL
-
SYD
2 stops26h 05m
Air Canada
Deal found 12/1$1,871
Thu 19/211:20
SYD
-
PHL
2 stops43h 27m
Air Canada
Mon 23/215:30
PHL
-
SYD
2 stops26h 05m
Air Canada
Deal found 11/1$1,944
Thu 26/211:20
SYD
-
PHL
2 stops43h 27m
Air Canada
Thu 5/315:30
PHL
-
SYD
2 stops26h 05m
Air Canada
Deal found 11/1$2,009
Fri 27/211:20
SYD
-
PHL
2 stops43h 27m
Air Canada
Fri 6/315:30
PHL
-
SYD
2 stops26h 05m
Air Canada
Deal found 13/1$2,080
Thu 5/314:00
SYD
-
PHL
3 stops34h 44m
Multiple Airlines
Wed 18/306:15
PHL
-
SYD
3 stops35h 20m
Multiple Airlines
Deal found 12/1$2,151

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 14 January 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 5/3

09:55-07:15

2 stops37h 20m

Philadelphia

Wed 18/3

08:21-10:30

2 stops35h 09m

$1,738

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 12/2

11:20-14:47

2 stops43h 27m

Philadelphia

Thu 12/3

15:30-08:35

2 stops26h 05m

$1,871

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 19/2

11:20-14:47

2 stops43h 27m

Philadelphia

Mon 23/2

15:30-09:35

2 stops26h 05m

$1,944

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 26/2

11:20-14:47

2 stops43h 27m

Philadelphia

Thu 5/3

15:30-09:35

2 stops26h 05m

$2,009

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 5/3

11:20-14:47

2 stops43h 27m

Philadelphia

Wed 18/3

15:30-08:35

3 stops50h 05m

$2,056

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 27/2

11:20-14:47

2 stops43h 27m

Philadelphia

Fri 6/3

15:30-09:35

2 stops26h 05m

$2,080

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 5/3

14:00-08:44

3 stops34h 44m

Philadelphia

Wed 18/3

06:15-08:35

3 stops35h 20m

$2,151

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 20/6

11:55-11:08

3 stops37h 13m

$1,490

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 20/6

09:15-09:37

2 stops38h 22m

$1,639

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 20/6

17:50-07:05

1 stop27h 15m

$1,960

Flights are sorted by cheapest return flights first.

Deals found on 13/1

Showing 1-10 of 12 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 9 January 2026.

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 $636). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,445). 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 14 January 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
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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
8,040 reviews
Delta
7.9
Good
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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
970 reviews
Delta
7.9
Good
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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
9,156 reviews
Delta
7.9
Good
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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
11,119 reviews
Delta
7.9
Good
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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
10,619 reviews
Delta
7.9
Good
8,040 reviews
Check prices

Entertainment

7.8

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

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 37h 20m. 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 $636, 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 $636). Flying from Sydney to Philadelphia in April is currently the most expensive (average of $1,445). 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 14 January 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 14 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,149Average$1,171FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$1,195Average$1,854FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,435Average$1,713FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,640Average$2,694FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapest$1,642Average$1,838FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
American AirlinesCheapest$1,792Average$1,915FlexibilityNo 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.

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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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