Find flights
When to book
Airlines
FAQs

Cheap flights from Sydney to Philadelphia from $901

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
17 Jun — 24 Jun1
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 18 May 2026.

Thu 21/509:30
SYD
-
PHL
2 stops23h 25m
United Airlines
Sun 31/513:31
PHL
-
SYD
2 stops27h 24m
United Airlines
Deal found 13/5$1,457
Fri 22/509:30
SYD
-
PHL
2 stops23h 48m
United Airlines
Sun 31/513:31
PHL
-
SYD
2 stops27h 24m
United Airlines
Deal found 13/5$1,527
Fri 19/609:30
SYD
-
PHL
2 stops25h 49m
United Airlines
Sun 2/806:10
PHL
-
SYD
2 stops34h 45m
United Airlines
Deal found 15/5$1,528
Fri 31/710:20
SYD
-
PHL
2 stops22h 34m
United Airlines
Fri 21/813:06
PHL
-
SYD
2 stops27h 54m
United Airlines
Deal found 16/5$1,582
Thu 4/610:20
SYD
-
PHL
1 stop35h 30m
Virgin Australia
Mon 15/618:23
PHL
-
SYD
1 stop22h 32m
Virgin Australia
Deal found 14/5$1,754
Sun 14/610:20
SYD
-
PHL
1 stop35h 30m
Virgin Australia
Sun 21/618:23
PHL
-
SYD
1 stop22h 32m
Virgin Australia
Deal found 15/5$1,823
Sat 13/610:20
SYD
-
PHL
1 stop35h 30m
Virgin Australia
Sat 20/609:25
PHL
-
SYD
1 stop31h 30m
Virgin Australia
Deal found 16/5$1,875
Thu 4/609:15
SYD
-
PHL
2 stops24h 12m
Delta
Mon 15/614:33
PHL
-
SYD
2 stops26h 17m
Delta
Deal found 14/5$1,914
Fri 31/709:10
SYD
-
PHL
1 stop25h 30m
American Airlines
Fri 21/815:37
PHL
-
SYD
1 stop25h 28m
American Airlines
Deal found 16/5$1,960

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 18 May 2026.

Round-trip from

$1,527

One-way from

$901

Popular in

September

Cheapest in

October

Average price

$2,667
United Airlines
  • United Airlines
  • 27/6-4/7
  • 4 total stops
  • 88h 22m total
  • Sydney to Philadelphia
Search Deals
United Airlines
  • United Airlines
  • 14/7
  • 2 total stops
  • 33h 11m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($98 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 18 May 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 return flight

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 27/6

09:30-00:57

2 stops29h 27m

Philadelphia

Sat 4/7

06:00-06:55

2 stops58h 55m

$1,527

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 19/6

09:30-21:19

2 stops25h 49m

Philadelphia

Sun 2/8

06:10-06:55

2 stops34h 45m

$1,528
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 31/7

10:20-18:54

2 stops22h 34m

Philadelphia

Fri 21/8

13:06-07:00

2 stops27h 54m

$1,582

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 4/6

10:20-07:50

1 stop35h 30m

Philadelphia

Mon 15/6

18:23-06:55

1 stop22h 32m

$1,754

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 14/6

10:20-07:50

1 stop35h 30m

Philadelphia

Sun 21/6

18:23-06:55

1 stop22h 32m

$1,823

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 14/6

09:15-09:34

2 stops38h 19m

Philadelphia

Sun 21/6

14:33-06:50

2 stops26h 17m

$1,963

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 13/6

09:15-23:22

2 stops28h 07m

Philadelphia

Sat 20/6

15:22-06:50

2 stops25h 28m

$2,014

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 28/6

09:30-05:31

2 stops34h 01m

Philadelphia

Sun 5/7

18:30-06:55

1 stop22h 25m

$2,053

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 27/6

13:15-12:23

3 stops37h 08m

Philadelphia

Sat 4/7

06:30-11:50

3 stops39h 20m

$2,193
Cheapest one-way

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 30/7

10:20-14:47

3 stops42h 27m

$901

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 19 resultsSorted by cheapest first
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

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 $1,587). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $2,783). 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 for a return flight 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 18 May 2026.
Get a feel of what it's like to fly with Qantas Airways,United Airlines, andAmerican 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.
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Entertainment

7.2

Food

7.0

Comfort

7.4

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
Qantas Airways
7.5
Good
1,037 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Entertainment

7.2

Food

7.0

Comfort

7.4

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
United Airlines
7.4
Good
9,737 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Entertainment

7.2

Food

7.0

Comfort

7.4

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
American Airlines
7.1
Good
11,650 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Entertainment

7.2

Food

7.0

Comfort

7.4

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
Air Canada
7.1
Good
11,059 reviews
Qantas Airways
7.5
Good
1,037 reviews
Check prices

Entertainment

7.2

Food

7.0

Comfort

7.4

Boarding

7.7

Crew

8.1

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

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 29h 27m. The distance between Sydney and Philadelphia is about 15871 km.

  • What are the cheapest airlines flying from Sydney to Philadelphia round-trip?

    United Airlines, at $596, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and Qantas Airways. Users have found that United Airlines is 70% 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, October is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $1,587). Flying from Sydney to Philadelphia in September is currently the most expensive (average of $2,783). 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

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 18 May 2026.
Qantas Airways flights from Sydney Kingsford Smith to Philadelphia
Air Canada flights from Sydney Kingsford Smith to Philadelphia

Top 4 airlines flying from Sydney to Philadelphia

Discover the top 4 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 18 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$596Average$1,125FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,301Average$1,676FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,536Average$2,578FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,678Average$1,964FlexibilityNo 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!

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.