HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$599+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
may. 19 — may. 261
lun. 5/19
lun. 5/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sydney to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 65 days in advance, depart on a Monday or Thursday and return on a Sunday

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 mayo 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$968
(Trip.com)

One-way from

$599
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,537
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. 14% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Sydney to Philadelphia

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 mayo 14, 2025.

This Trip.com deal was found by Cheapflights users on 5/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/129:20 amSYD - PHL
2 stops35h 40mMultiple Airlines
dom. 6/158:15 amPHL - SYD
2 stops33h 05mMultiple Airlines
Deal found 5/13$968
This American Airlines deal was found by Cheapflights users on 5/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/19:10 amSYD - PHL
1 stop28h 43mAmerican Airlines
mar. 6/175:55 pmPHL - SYD
1 stop23h 10mAmerican Airlines
Deal found 5/13$1,200
This Air Canada deal was found by Cheapflights users on 5/13. 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.
lun. 10/2710:20 amSYD - PHL
3 stops43h 30mAir Canada
sáb. 11/153:30 pmPHL - SYD
2 stops26h 05mAir Canada
Deal found 5/13$1,233
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/239:25 amSYD - PHL
2 stops28h 58mDelta
dom. 10/192:40 pmPHL - SYD
2 stops25h 55mDelta
Deal found 5/12$1,282
This United Airlines deal was found by Cheapflights users on 5/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/129:30 amSYD - PHL
2 stops29h 00mUnited Airlines
jue. 7/3110:10 amPHL - SYD
2 stops30h 45mUnited Airlines
Deal found 5/13$1,357
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/179:40 pmSYD - PHL
2 stops46h 00mAlaska Airlines
vie. 5/306:59 pmPHL - SYD
2 stops34h 46mAlaska Airlines
Deal found 5/12$1,638
This Virgin Australia deal was found by Cheapflights users on 5/12. 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 Virgin Australia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2910:20 amSYD - PHL
1 stop21h 08mVirgin Australia
mié. 10/156:30 amPHL - SYD
1 stop34h 25mVirgin Australia
Deal found 5/12$1,673
This KAYAK deal was found by Cheapflights users on 5/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/248:45 pmSYD - PHL
1 stop50h 15mQatar Airways
vie. 10/178:35 pmPHL - SYD
1 stop30h 35mQatar Airways
Deal found 5/12$1,830
This Qantas Airways deal was found by Cheapflights users on 5/12. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/299:10 amSYD - PHL
1 stop22h 20mQantas Airways
mar. 10/143:51 pmPHL - SYD
2 stops27h 34mQantas Airways
Deal found 5/12$1,859
This Air Tahiti Nui deal was found by Cheapflights users on 5/12. 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 Tahiti Nui is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/175:50 pmSYD - PHL
3 stops59h 15mAir Tahiti Nui
vie. 5/306:00 pmPHL - SYD
3 stops31h 10mAir Tahiti Nui
Deal found 5/12$1,960
This BYOjet deal was found by Cheapflights users on 5/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/28:55 pmSYD - PHL
2 stops38h 36mANA
mar. 9/306:30 amPHL - SYD
2 stops46h 45mANA
Deal found 5/12$5,623

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 mayo 14, 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

jue. 6/12

9:20 am-7:00 am

2 stops35h 40m

Philadelphia

dom. 6/15

8:15 am-7:20 am

2 stops33h 05m

$968

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

dom. 6/1

9:10 am-11:53 pm

1 stop28h 43m

Philadelphia

mar. 6/17

5:55 pm-7:05 am

1 stop23h 10m

$1,200

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

lun. 10/27

10:20 am-2:50 pm

3 stops43h 30m

Philadelphia

sáb. 11/15

3:30 pm-9:35 am

2 stops26h 05m

$1,233

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

mar. 9/23

9:25 am-6:20 pm

2 stops22h 55m

Philadelphia

mié. 10/15

2:40 pm-7:35 am

2 stops25h 55m

$1,282

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

sáb. 7/12

9:30 am-12:30 am

2 stops29h 00m

Philadelphia

jue. 7/31

10:10 am-6:55 am

2 stops30h 45m

$1,357

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

lun. 9/29

10:20 am-5:28 pm

1 stop21h 08m

Philadelphia

mié. 10/15

6:30 am-7:55 am

1 stop34h 25m

$1,673

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

mié. 9/24

8:45 pm-9:00 am

1 stop50h 15m

Philadelphia

vie. 10/17

8:35 pm-6:10 pm

1 stop30h 35m

$1,830

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

lun. 9/29

9:10 am-5:30 pm

1 stop22h 20m

Philadelphia

mar. 10/14

3:51 pm-10:25 am

2 stops27h 34m

$1,859

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

jue. 9/25

8:55 am-12:43 am

3 stops29h 48m

Philadelphia

vie. 10/17

6:48 pm-8:50 pm

3 stops35h 02m

$2,046

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

mar. 9/2

8:55 pm-9:31 pm

2 stops38h 36m

Philadelphia

mar. 9/30

6:30 am-7:15 pm

2 stops46h 45m

$5,623

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/13

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Sydney-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Philadelphia flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 May 9, 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 17 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, August is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $236). Flying from Sydney to Philadelphia in March is currently the most expensive (average of $295). 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 mayo 14, 2025.

When flying from Sydney to Philadelphia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 2% versus a flight in the morning.

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 mayo 14, 2025.
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very good
63 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.3
Very good
860 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very good
7,949 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Qantas Airways
7.5
Good
837 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Virgin Australia
7.5
Good
402 reviews
Air Tahiti Nui
8.7
Very good
63 reviews

Food

7.8

Overall

8.7

Comfort

8.1

Boarding

8.7

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    Cheapflights users have booked flights from Sydney to Philadelphia round-trip from $1,200. Other airlines that can offer you cheap pricing are Air Canada, from $1,233, and Delta, from $1,282. American Airlines 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 $743 on Delta. Other airlines that offer cheap prices include Qatar Airways from $1,087 and Qantas Airways from $1,122 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, August is the cheapest month in which you can book a flight from Sydney to Philadelphia (average of $236). Flying from Sydney to Philadelphia in March is currently the most expensive (average of $295). 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Vineland
Pottstown
Wildwood
Reading
King of Prussia
Cherry Hill
Exton
Ocean City
Essington
Chester
Middletown
Willow Grove
Newark
Millville
Dover
Ephrata
Camden
Dewey Beach
Glen Mills
Springfield

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 2 airlines flying from Sydney to Philadelphia

Discover the top 2 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 2,558,603 searches. Data last updated mayo 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,091Average$1,289FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,123Average$1,262FlexibilityNo cancel feeOn-time74%

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.