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Cheap flights from Sydney to Philadelphia from $778

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — PHL
17 Feb — 24 Feb1
1 adult

The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or July, booked 17 days in advance, depart on a Thursday or Friday and return on a Tuesday

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 12 February 2025.

Round-trip from

$1,248

One-way from

$778

Popular in

December

Cheapest in

February

Average price

$1,248
Delta
  • Delta
  • 2/3-11/3
  • 4 total stops
  • 60h 44m total
  • Sydney to Philadelphia
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Delta
  • Delta
  • 20/2
  • 2 total stops
  • 23h 15m total
  • Sydney to Philadelphia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($603 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($145 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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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 12 February 2025.

Thu 20/214:15SYD - PHL
2 stops25h 37mDelta
Thu 27/210:33PHL - SYD
2 stops28h 17mDelta
Deal found 11/2$1,248
Sun 2/317:25SYD - PHL
1 stop28h 18mMultiple Airlines
Tue 11/316:29PHL - SYD
2 stops29h 01mMultiple Airlines
Deal found 11/2$1,765
Mon 7/409:20SYD - PHL
2 stops44h 23mAir Canada
Sun 20/415:30PHL - SYD
3 stops49h 50mAir Canada
Deal found 10/2$1,861
Mon 7/409:10SYD - PHL
1 stop22h 40mQantas Airways
Sun 20/416:10PHL - SYD
1 stop24h 55mQantas Airways
Deal found 10/2$2,063
Mon 7/409:10SYD - PHL
2 stops23h 41mAmerican Airlines
Sun 20/418:05PHL - SYD
1 stop23h 00mAmerican Airlines
Deal found 10/2$2,122
Thu 20/207:05SYD - PHL
3 stops49h 55mAir Tahiti Nui
Tue 4/317:05PHL - SYD
3 stops35h 35mAir Tahiti Nui
Deal found 11/2$2,910
Fri 28/311:50SYD - PHL
1 stop26h 09mUnited Airlines
Fri 4/412:50PHL - SYD
2 stops28h 10mUnited Airlines
Deal found 11/2$3,225
Fri 28/321:45SYD - PHL
2 stops38h 35mEmirates
Fri 4/417:01PHL - SYD
2 stops34h 19mEmirates
Deal found 11/2$4,947

Find flights from Sydney to Philadelphia within your budget

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 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 2/3

11:05-00:49

2 stops29h 44m

Philadelphia

Tue 11/3

08:05-06:05

2 stops31h 00m

$1,248

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 2/3

17:25-05:43

1 stop28h 18m

Philadelphia

Tue 11/3

16:29-12:30

2 stops29h 01m

$1,765

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/4

09:20-15:43

2 stops44h 23m

Philadelphia

Sun 20/4

15:30-07:20

3 stops49h 50m

$1,861

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/4

09:10-17:50

1 stop22h 40m

Philadelphia

Sun 20/4

16:10-07:05

1 stop24h 55m

$2,063

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/4

09:10-18:51

2 stops23h 41m

Philadelphia

Sun 20/4

18:05-07:05

1 stop23h 00m

$2,122

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 25/2

07:05-17:00

2 stops49h 55m

Philadelphia

Tue 4/3

10:30-17:40

3 stops39h 10m

$2,954

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 28/3

11:50-22:59

1 stop26h 09m

Philadelphia

Fri 4/4

12:50-08:00

2 stops28h 10m

$3,225

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 28/3

21:45-21:20

2 stops38h 35m

Philadelphia

Fri 4/4

17:01-18:20

2 stops34h 19m

$4,947

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 20/2

11:05-18:20

2 stops23h 15m

$778

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 20/2

07:05-23:39

3 stops32h 34m

$1,660

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 14 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.

Travel insights for flights from Sydney to Philadelphia

Get recent, data-driven insights about flights from Sydney to Philadelphia including ideal travel times, pricing trends, and more.

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 7 February 2025.

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 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 12 February 2025.

One of the essential ways to save on airfare from Sydney to Philadelphia is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

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 69.0 - 112.0 inches per month. July is typically the wettest month, when rainfall can reach 112.0 mm. February is typically the driest time to visit Philadelphia when rainfall is around 69.0 mm.

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 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Emirates and Delta from Sydney to Philadelphia to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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
61 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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.

Emirates
8.1
Very Good
3,302 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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
8,333 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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
7.4
Good
819 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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.

United Airlines
7.4
Good
8,844 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Entertainment

7.2

Crew

9.1

Boarding

8.7

Food

7.8

Overall

8.7

Comfort

8.0

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?

    Delta, at $1,248, 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 Delta is 43% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Sydney to Philadelphia one-way?

    $778 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Tahiti Nui and American Airlines, with prices starting from $1,660 and $1,776, respectively.

  • 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.

See more FAQs

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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 2025.
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 2025.