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

Delta, at $1,853, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and Alaska Airlines. Users have found that Delta is 15% cheaper than the other options available to this destination. Find deals

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

$1,165 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on Delta and Air Canada, with prices starting from $1,190 and $1,214, respectively. Find deals

What is the cheapest day to fly from Sydney to Philadelphia?

Travellers seeking maximum savings on their Sydney to Philadelphia flight should consider departing on Thursday evenings when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

What are the most popular airlines that fly from Sydney to Philadelphia?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Sydney to Philadelphia.

What is the cheapest day to fly return from Sydney to Philadelphia?

Flights from Sydney to Philadelphia are generally found to be more expensive on Monday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Philadelphia.

How far in advance should I book a flight from Sydney to Philadelphia?

Find a great deal and save up to 143% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Sydney to Philadelphia within the next two weeks, with the cheapest ticket starting at $1,216.

What is the cheapest month to fly from Sydney to Philadelphia?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Philadelphia. Flights to Philadelphia from Sydney in February are about $2,193 on average during February, but can be found for as low as $1,182.

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.

$909+ Flights from Sydney to Philadelphia

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 59 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Sydney to Philadelphia

Round-trip from	$1,853
One-way from	$909
Popular in	December
Cheapest in	February
Average price	$1,850

Delta
27/7-3/8
4 total stops
54h 01m total
Sydney to Philadelphia

Search Deals

30/7
2 total stops
27h 05m total
Sydney to Philadelphia

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($548 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($118 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 13 June 2025.

Sun 27/709:25SYD - PHL

2 stops24h 04mDelta

Sun 3/810:38PHL - SYD

2 stops29h 57mDelta

Deal found 12/6$1,853

Sun 14/909:10SYD - PHL

1 stop22h 32mQantas Airways

Sat 4/1015:40PHL - SYD

1 stop25h 25mQantas Airways

Deal found 12/6$1,947

Sun 27/717:45SYD - PHL

1 stop27h 13mMultiple Airlines

Sun 3/821:12PHL - SYD

2 stops44h 18mMultiple Airlines

Deal found 12/6$1,977

Mon 28/709:20SYD - PHL

2 stops51h 09mAir Canada

Mon 4/815:20PHL - SYD

2 stops50h 00mAir Canada

Deal found 12/6$2,025

Sun 14/909:10SYD - PHL

1 stop25h 02mAmerican Airlines

Sat 4/1016:00PHL - SYD

2 stops25h 05mAmerican Airlines

Deal found 12/6$2,095

Sun 27/721:40SYD - PHL

2 stops45h 45mAlaska Airlines

Sun 3/818:52PHL - SYD

2 stops34h 53mAlaska Airlines

Deal found 12/6$2,465

Sun 27/710:20SYD - PHL

1 stop21h 02mUnited Airlines

Sun 3/818:52PHL - SYD

2 stops46h 08mUnited Airlines

Deal found 12/6$3,145

Wed 23/708:55SYD - PHL

2 stops44h 00mJapan Airlines

Tue 12/810:50PHL - SYD

2 stops29h 30mJapan Airlines

Deal found 11/6$7,203

Thu 24/708:55SYD - PHL

3 stops29h 43mAir Tahiti Nui

Tue 12/818:50PHL - SYD

3 stops33h 00mAir Tahiti Nui

Deal found 11/6$14,046

Sun 27/720:45SYD - PHL

1 stop50h 15mQatar Airways

Tue 12/818:48PHL - SYD

2 stops45h 27mQatar Airways

Deal found 11/6$16,502

Best flights from Sydney to Philadelphia
Discover carefully curated flight deals from Sydney to Philadelphia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Sun 27/709:25SYD - PHL

2 stops24h 04mDelta

Sun 3/810:38PHL - SYD

2 stops29h 57mDelta

Deal found 12/6$1,853

Sun 27/717:45SYD - PHL

1 stop27h 13mMultiple Airlines

Sun 3/821:12PHL - SYD

2 stops44h 18mMultiple Airlines

Deal found 12/6$1,977

Mon 28/709:20SYD - PHL

2 stops51h 09mAir Canada

Mon 4/815:20PHL - SYD

2 stops50h 00mAir Canada

Deal found 12/6$2,025

Sun 27/721:40SYD - PHL

2 stops45h 45mAlaska Airlines

Sun 3/818:52PHL - SYD

2 stops34h 53mAlaska Airlines

Deal found 12/6$2,465

Thu 10/709:10SYD - PHL

1 stop20h 38mAmerican Airlines

Sat 26/713:50PHL - SYD

1 stop27h 15mAmerican Airlines

Deal found 12/6$2,789

Sun 27/710:20SYD - PHL

1 stop21h 02mUnited Airlines

Sun 3/818:52PHL - SYD

2 stops46h 08mUnited Airlines

Deal found 12/6$3,145

Mon 7/709:10SYD - PHL

1 stop22h 07mQantas Airways

Wed 16/718:00PHL - SYD

1 stop23h 05mQantas Airways

Deal found 12/6$3,297

Wed 23/708:55SYD - PHL

2 stops44h 00mJapan Airlines

Tue 12/810:50PHL - SYD

2 stops29h 30mJapan Airlines

Deal found 11/6$7,203

Thu 24/708:55SYD - PHL

3 stops29h 43mAir Tahiti Nui

Tue 12/818:50PHL - SYD

3 stops33h 00mAir Tahiti Nui

Deal found 11/6$14,046

Sun 27/720:45SYD - PHL

1 stop50h 15mQatar Airways

Tue 12/818:48PHL - SYD

2 stops45h 27mQatar Airways

Deal found 11/6$16,502

Last-minute flights from Sydney to Philadelphia
Discover last-minute flight deals from Sydney to Philadelphia. Data last updated 13 June 2025 and is based on user searches.

Sat 14/609:10SYD - PHL

1 stop27h 44mAmerican Airlines

Sat 28/617:21PHL - SYD

2 stops23h 44mAmerican Airlines

Deal found 12/6$2,105

Sat 14/609:10SYD - PHL

1 stop27h 44mQantas Airways

Sat 28/615:49PHL - SYD

1 stop25h 16mQantas Airways

Deal found 12/6$2,123

Wed 23/708:55SYD - PHL

2 stops44h 00mJapan Airlines

Tue 12/810:50PHL - SYD

2 stops29h 30mJapan Airlines

Deal found 11/6$7,203

Thu 24/708:55SYD - PHL

3 stops29h 43mAir Tahiti Nui

Tue 12/818:50PHL - SYD

3 stops33h 00mAir Tahiti Nui

Deal found 11/6$14,046

Sun 27/709:25SYD - PHL

2 stops24h 04mDelta

Sun 3/810:38PHL - SYD

2 stops29h 57mDelta

Deal found 12/6$1,853

Sun 27/717:45SYD - PHL

1 stop27h 13mMultiple Airlines

Sun 3/821:12PHL - SYD

2 stops44h 18mMultiple Airlines

Deal found 12/6$1,977

Sun 27/721:40SYD - PHL

2 stops45h 45mAlaska Airlines

Sun 3/818:52PHL - SYD

2 stops34h 53mAlaska Airlines

Deal found 12/6$2,465

Sun 27/710:20SYD - PHL

1 stop21h 02mUnited Airlines

Sun 3/818:52PHL - SYD

2 stops46h 08mUnited Airlines

Deal found 12/6$3,145

Sun 27/720:45SYD - PHL

1 stop50h 15mQatar Airways

Tue 12/818:48PHL - SYD

2 stops45h 27mQatar Airways

Deal found 11/6$16,502

Mon 28/709:20SYD - PHL

2 stops51h 09mAir Canada

Mon 4/815:20PHL - SYD

2 stops50h 00mAir Canada

Deal found 12/6$2,025

One-way flights from Sydney to Philadelphia
Search for one-way flight options from Sydney to Philadelphia. Find affordable one-way fares based on user searches. Data last updated 13 June 2025.

Wed 30/716:20SYD - PHL

2 stops27h 05mMultiple Airlines

Deal found 12/6$909

Fri 1/809:10SYD - PHL

1 stop22h 07mQantas Airways

Deal found 12/6$1,165

Mon 21/709:25SYD - PHL

2 stops24h 04mDelta

Deal found 11/6$1,190

Sun 20/709:20SYD - PHL

3 stops50h 47mAir Canada

Deal found 11/6$1,214

Sun 6/709:10SYD - PHL

1 stop28h 05mAmerican Airlines

Deal found 12/6$1,274

Mon 25/810:20SYD - PHL

3 stops28h 00mUnited Airlines

Deal found 11/6$1,856

Wed 6/817:50SYD - PHL

3 stops44h 55mAir Tahiti Nui

Deal found 12/6$1,877

Sat 30/814:15SYD - PHL

3 stops56h 50mQatar Airways

Deal found 11/6$2,022

Fri 25/721:40SYD - PHL

2 stops45h 45mAlaska Airlines

Deal found 11/6$6,349

Cheapflights Fare Finder

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

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 27/7

09:25-19:29

2 stops24h 04m

Philadelphia

Sun 3/8

10:38-06:35

2 stops29h 57m

$1,853

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 14/9

09:10-17:42

1 stop22h 32m

Philadelphia

Sat 4/10

15:40-08:05

1 stop25h 25m

$1,947

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 27/7

17:45-06:58

1 stop27h 13m

Philadelphia

Sun 3/8

21:12-07:30

2 stops44h 18m

$1,977

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 28/7

09:20-22:29

2 stops51h 09m

Philadelphia

Mon 4/8

15:20-07:20

2 stops50h 00m

$2,025

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 14/9

09:10-20:12

1 stop25h 02m

Philadelphia

Sat 4/10

16:00-08:05

2 stops25h 05m

$2,095

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 27/7

21:40-05:25

2 stops45h 45m

Philadelphia

Sun 3/8

18:52-19:45

2 stops34h 53m

$2,465

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 27/7

10:20-17:22

1 stop21h 02m

Philadelphia

Sun 3/8

18:52-07:00

2 stops46h 08m

$3,145

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 23/7

08:55-14:55

2 stops44h 00m

Philadelphia

Tue 12/8

10:50-06:20

2 stops29h 30m

$7,203

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 24/7

08:55-00:38

3 stops29h 43m

Philadelphia

Tue 12/8

18:50-17:50

3 stops33h 00m

$14,046

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 27/7

20:45-09:00

1 stop50h 15m

Philadelphia

Tue 12/8

18:48-06:15

2 stops45h 27m

$16,502

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 19 results

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?

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 time of day to fly from SYD to PHL?

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

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

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

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

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

64 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Japan Airlines

8.3

Very Good

1,490 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Alaska Airlines

8.0

Very Good

10,000 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Delta

8.0

Very Good

7,946 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Qantas Airways

7.5

Good

854 reviews

Air Tahiti Nui

8.7

Very Good

64 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What are the cheapest airlines flying from Sydney to Philadelphia round-trip?
Delta, at $1,853, was found to be the cheapest airline from Sydney to Philadelphia.Alternate airlines to your destination round-trip include Air Canada and Alaska Airlines. Users have found that Delta is 15% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Sydney to Philadelphia one-way?
$1,165 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on Delta and Air Canada, with prices starting from $1,190 and $1,214, 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

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Sydney to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$1,181	Average$1,204	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest$1,229	Average$2,823	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,483	Average$1,845	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Qantas Airways	Cheapest$1,741	Average$2,866	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
American Airlines	Cheapest$1,866	Average$2,178	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

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!

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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.

Cheap flights from Sydney to Philadelphia from $909

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.

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Philadelphia are usually found in February or March, booked 59 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Sydney to Philadelphia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sydney to Philadelphia

Cheapest flights from Sydney to PhiladelphiaExplore 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 13 June 2025.

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 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

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.

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 June 2025.

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 13 June 2025.

Rainfall in Philadelphia by month

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

Temperature in Philadelphia by month

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

Reviews of airlines servicing Philadelphia

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?

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

Can I find deals for flights from Sydney to Philadelphia that include hotel bookings?

How can I find direct flights from Sydney to Philadelphia?

Can I find deals for business class flights from Sydney to Philadelphia?

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 13 June 2025.

Top 5 airlines flying from Sydney to Philadelphia

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?

Why should you use Cheapflights to find cheap flight tickets from Sydney to Philadelphia?

Can Cheapflights find flights from Sydney to Philadelphia with no change fees?

Can Cheapflights notify me if prices for flights from Sydney to Philadelphia become cheaper?

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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 13 June 2025.