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$982+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 17 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 May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,321
(Booking.com)

One-way from

$982
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$1,479
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. 17% potential increase in price ($298 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($58 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 May 1, 2025.

This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:20 amSYD - PHL
2 stops26h 48mAir Canada
Tue 9/233:25 pmPHL - SYD
2 stops49h 55mAir Canada
Deal found 4/30$1,321
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 9/910:20 amSYD - PHL
1 stop21h 08mUnited Airlines
Tue 9/2310:10 amPHL - SYD
2 stops30h 50mUnited Airlines
Deal found 4/30$1,359
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:40 amSYD - PHL
2 stops56h 50mMultiple Airlines
Wed 6/188:15 amPHL - SYD
1 stop33h 15mMultiple Airlines
Deal found 4/30$1,414
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 6/279:25 amSYD - PHL
2 stops37h 09mDelta
Thu 7/177:10 amPHL - SYD
2 stops33h 25mDelta
Deal found 4/30$1,490
This Jetabroad deal was found by Cheapflights users on 4/30. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:20 amSYD - PHL
1 stop21h 08mVirgin Australia
Tue 9/236:30 amPHL - SYD
1 stop34h 25mVirgin Australia
Deal found 4/30$1,684
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 5/209:40 pmSYD - PHL
2 stops46h 00mAlaska Airlines
Wed 6/186:45 amPHL - SYD
2 stops47h 00mAlaska Airlines
Deal found 4/30$1,784
This BestPriceTravel deal was found by Cheapflights users on 4/30. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/279:10 amSYD - PHL
1 stop29h 33mQantas Airways
Thu 7/176:00 pmPHL - SYD
1 stop23h 05mQantas Airways
Deal found 4/30$1,875
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 12/1511:15 amSYD - PHL
2 stops28h 47mAmerican Airlines
Thu 1/298:50 amPHL - SYD
1 stop32h 10mAmerican Airlines
Deal found 4/30$2,179
This Jettzy deal was found by Cheapflights users on 4/29. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:55 pmSYD - PHL
2 stops34h 26mANA
Tue 11/410:10 amPHL - SYD
2 stops66h 05mANA
Deal found 4/29$5,530
This Fiji Airways deal was found by Cheapflights users on 4/29. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:15 pmSYD - PHL
2 stops23h 27mFiji Airways
Sat 11/16:35 pmPHL - SYD
2 stops36h 15mFiji Airways
Deal found 4/29$5,716
This Cathay Pacific deal was found by Cheapflights users on 4/29. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:10 amSYD - PHL
2 stops51h 44mCathay Pacific
Tue 11/410:46 amPHL - SYD
2 stops33h 14mCathay Pacific
Deal found 4/29$5,912
This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:55 amSYD - PHL
2 stops44h 00mJapan Airlines
Fri 11/79:20 pmPHL - SYD
2 stops41h 30mJapan Airlines
Deal found 4/29$5,920

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 May 1, 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

Tue 9/9

9:20 am-10:08 pm

2 stops26h 48m

Philadelphia

Tue 9/23

3:25 pm-7:20 am

2 stops49h 55m

$1,321

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/9

10:20 am-5:28 pm

1 stop21h 08m

Philadelphia

Tue 9/23

10:10 am-7:00 am

2 stops30h 50m

$1,359

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 5/20

11:40 am-6:30 am

2 stops56h 50m

Philadelphia

Wed 6/18

8:15 am-7:30 am

1 stop33h 15m

$1,414

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/27

9:25 am-8:34 am

2 stops37h 09m

Philadelphia

Thu 7/17

7:10 am-6:35 am

2 stops33h 25m

$1,490

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/9

10:20 am-5:28 pm

1 stop21h 08m

Philadelphia

Tue 9/23

6:30 am-6:55 am

1 stop34h 25m

$1,684

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 5/20

9:40 pm-5:40 am

2 stops46h 00m

Philadelphia

Wed 6/18

6:45 am-7:45 pm

2 stops47h 00m

$1,784

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/27

9:10 am-12:43 am

1 stop29h 33m

Philadelphia

Thu 7/17

6:00 pm-7:05 am

1 stop23h 05m

$1,875

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/9

8:55 pm-5:21 pm

2 stops34h 26m

Philadelphia

Tue 11/4

10:10 am-8:15 pm

2 stops66h 05m

$5,530

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 9/11

1:15 pm-10:42 pm

2 stops23h 27m

Philadelphia

Sat 11/1

6:35 pm-9:50 pm

2 stops36h 15m

$5,716

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 10/1

10:10 am-11:54 pm

2 stops51h 44m

Philadelphia

Tue 11/4

10:46 am-12:00 pm

2 stops33h 14m

$5,912

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 16 results
1
2

Compare providers for flights from Sydney to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Philadelphia in May.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Philadelphia flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 April 25, 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 May 1, 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 May 1, 2025.
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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.
Japan Airlines
8.3
Very good
1,464 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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
852 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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.
Fiji Airways
8.1
Very good
190 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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.
Alaska Airlines
8.0
Very good
9,972 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Boarding

8.7

Comfort

8.1

Food

7.8

Entertainment

7.3

Crew

9.1

Overall

8.8

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 $1,321. Other airlines that can offer you cheap pricing are United Airlines, from $1,359, and Delta, from $1,490. Air Canada is currently priced 3% 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 $982 on Alaska Airlines. Other airlines that offer cheap prices include Qantas Airways from $1,120 and Air Tahiti Nui from $1,184 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
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Wildwood
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Reading
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Exton
Ocean City
Essington
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Willow Grove
Newark
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Ephrata
Camden
Dewey Beach
West Chester
Malvern
Dover

Browse thousands of different options on Cheapflights for your next trip

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,091Average$1,289FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$1,123Average$1,251FlexibilityNo cancel feeOn-time74%

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