What is the cheapest airline that flies from Sydney Kingsford Smith to Philadelphia?

Air Canada, Alaska Airlines, and American Airlines are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Qantas Airways, United Airlines and Delta are the top three most popular airlines that fly to Philadelphia from Sydney according to our data. Qantas Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?

Prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?

There is 1 operator available for flights from Sydney Kingsford Smith Airport to Philadelphia Airport as of October 2025.

How old do you have to be to fly from Sydney Kingsford Smith Airport to Philadelphia Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$568 Cheap Flights from Sydney to Philadelphia in 2025/26

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Find the cheapest flights from Sydney to Philadelphia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:00 pm - 9:38 pmSYD-PHL

23h 38m1 stop

6:16 pm - 6:20 amPHL-SYD

45h 04m1 stop

$1,314United Airlines

Find Deal

Fri, Mar 6 - Tue, Mar 10

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 8:35 amPHL-SYD

26h 05m2 stops

$1,443Air Canada

Find Deal

Fri, Mar 6 - Tue, Mar 10

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 8:35 amPHL-SYD

26h 05m2 stops

$1,451Air Canada

Find Deal

Fri, Mar 6 - Tue, Mar 10

2:05 pm - 7:24 pmSYD-PHL

21h 19m1 stop

4:04 pm - 9:00 amPHL-SYD

24h 56m2 stops

$1,672American Airlines

Find Deal

Sun, Nov 30 - Sun, Dec 7

9:25 pm - 7:41 pmSYD-PHL

38h 16m2 stops

6:45 pm - 9:00 amPHL-SYD

23h 15m1 stop

$1,688American Airlines

Find Deal

Fri, Mar 6 - Tue, Mar 10

11:50 am - 10:24 amSYD-PHL

38h 34m2 stops

6:30 am - 9:15 amPHL-SYD

34h 45m2 stops

$1,755United Airlines

Find Deal

Sun, Nov 30 - Sun, Dec 7

9:40 pm - 8:00 amSYD-PHL

50h 20m1 stop

8:50 pm - 6:50 pmPHL-SYD

31h 00m1 stop

$1,860Qatar Airways

Find Deal

Fri, Mar 6 - Tue, Mar 10

11:20 am - 2:47 pmSYD-PHL

43h 27m2 stops

3:30 pm - 9:35 amPHL-SYD

50h 05m3 stops

$2,190Air Canada

Find Deal

Sun, Nov 30 - Sun, Dec 7

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 9:35 amPHL-SYD

50h 05m3 stops

$2,196Air Canada

Find Deal

Sun, Nov 30 - Sun, Dec 7

Air Canada flights from Sydney to Philadelphia

Our best Air Canada deals on Sydney to Philadelphia flight tickets

Air Canada

Mar 6

SYD11:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

Mar 10

PHL3:30 pmPhiladelphia

26h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

$1,443

Find similar

Air Canada

Mar 6

SYD11:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

Mar 10

PHL3:30 pmPhiladelphia

26h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

$1,451

Find similar

Air Canada

Nov 30

SYD11:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

Dec 7

PHL3:30 pmPhiladelphia

50h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

$2,190

Find similar

American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Nov 30

SYD2:05 pmSydney Kingsford Smith

21h 19m

1 stop

PHL7:24 pmPhiladelphia

Dec 7

PHL4:04 pmPhiladelphia

24h 56m

2 stops

SYD9:00 amSydney Kingsford Smith

$1,672

Find similar

American Airlines

Mar 6

SYD9:25 pmSydney Kingsford Smith

38h 16m

2 stops

PHL7:41 pmPhiladelphia

Mar 10

PHL6:45 pmPhiladelphia

23h 15m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,688

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 3/6

2:00 pm-9:38 pm

1 stop23h 38m

Philadelphia

Tue 3/10

6:16 pm-6:20 am

1 stop45h 04m

$1,314

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 3/6

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Tue 3/10

3:30 pm-8:35 am

2 stops26h 05m

$1,443

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 3/6

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Tue 3/10

3:30 pm-8:35 am

2 stops26h 05m

$1,451

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 11/30

2:05 pm-7:24 pm

1 stop21h 19m

Philadelphia

Sun 12/7

4:04 pm-9:00 am

2 stops24h 56m

$1,672

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 3/6

9:25 pm-7:41 pm

2 stops38h 16m

Philadelphia

Tue 3/10

6:45 pm-9:00 am

1 stop23h 15m

$1,688

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 11/30

11:50 am-10:24 am

2 stops38h 34m

Philadelphia

Sun 12/7

6:30 am-9:15 am

2 stops34h 45m

$1,755

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 3/6

9:40 pm-8:00 am

1 stop50h 20m

Philadelphia

Tue 3/10

8:50 pm-6:50 pm

1 stop31h 00m

$1,860

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 11/30

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Sun 12/7

3:30 pm-9:35 am

3 stops50h 05m

$2,190

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 11/30

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Sun 12/7

3:30 pm-9:35 am

3 stops50h 05m

$2,196

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 1/29

2:10 pm-12:32 am

3 stops50h 22m

$568

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sydney to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Sydney is in February. Flight prices, which tend to average around $784, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $794.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Sydney to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $1,303. On the other hand, Saturday is the most expensive day to depart from Sydney because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,072.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Sydney to Philadelphia in the afternoon for as low as $1,705. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $1,727.

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

You are more likely to see cheaper flights to Philadelphia from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $1,383 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Sydney for as low as $822 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 11% on your flight if you consider stops on a Sydney to Philadelphia flight.

When to book flights from Sydney to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sydney to Philadelphia (SYD to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Philadelphia

Direct flights	None

There are no direct flights from Sydney to Philadelphia. There are no popular flight routes from Sydney to Philadelphia.

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How far is Sydney Kingsford Smith to Philadelphia by plane?
A flight from Sydney Kingsford Smith to Philadelphia will travel around 9863.8 mi. In terms of flight time, this usually takes a little over 21h 19m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?
Prices for flights from Sydney Kingsford Smith Airport to Philadelphia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?
There is 1 operator available for flights from Sydney Kingsford Smith Airport to Philadelphia Airport as of October 2025.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Philadelphia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sydney to Philadelphia?
Based on momondo bookings for flights between Sydney and Philadelphia, the leading airline is Qantas Airways, making up 100% of the total bookings.

Best airlines flying from Sydney to Philadelphia

Compare and see reviews for airlines that fly from Sydney to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Qantas Airways	PriceFrom $1,123	Free Cancellation	Rating 7.5 918 reviews		Search Qantas Airways flights

Wildwood

Cape May

Rehoboth Beach

Ocean City

Wildwood Crest

King of Prussia

Dewey Beach

Cherry Hill

Reading

Newark

North Wildwood

Dover

Avalon

Lewes

Stone Harbor

Vineland

Essington

Pottstown

New Castle

Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Philadelphia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Philadelphia. momondo saves you time and could save you money on your trip.

Can I find flights from Sydney to Philadelphia with flexible booking policies on momondo?

Yes. All flights to Philadelphia from Sydney on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sydney to Philadelphia?

Once you have performed a search for Sydney to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Sydney to Philadelphia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Sydney and alert you when they change.