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

Air Canada and Air New Zealand 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 39% 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 December 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.

$640 Cheap Flights from Sydney to Philadelphia in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

11:20 am - 2:47 pmSYD-PHL

43h 27m2 stops

4:05 pm - 9:35 amPHL-SYD

49h 30m2 stops

$862Air Canada

Find Deal

Mon, Jan 26 - Sun, Feb 8

11:20 am - 2:47 pmSYD-PHL

43h 27m2 stops

3:30 pm - 9:35 amPHL-SYD

50h 05m3 stops

$865Air Canada

Find Deal

Mon, Jan 26 - Sun, Feb 8

11:20 am - 2:47 pmSYD-PHL

43h 27m2 stops

3:30 pm - 9:35 amPHL-SYD

26h 05m2 stops

$868Air Canada

Find Deal

Thu, Feb 12 - Mon, Feb 16

11:20 am - 2:47 pmSYD-PHL

43h 27m2 stops

3:30 pm - 9:35 amPHL-SYD

26h 05m2 stops

$869Air Canada

Find Deal

Thu, Feb 12 - Mon, Feb 16

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 9:35 amPHL-SYD

26h 05m2 stops

$875Air Canada

Find Deal

Thu, Feb 12 - Mon, Feb 16

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 9:35 amPHL-SYD

26h 05m2 stops

$876Air Canada

Find Deal

Thu, Feb 12 - Mon, Feb 16

11:20 am - 2:47 pmSYD-PHL

43h 27m3 stops

3:30 pm - 9:35 amPHL-SYD

50h 05m3 stops

$1,003Air Canada

Find Deal

Mon, Jan 26 - Sun, Feb 8

11:20 am - 11:48 pmSYD-PHL

28h 28m1 stop

2:30 pm - 9:00 amPHL-SYD

26h 30m1 stop

$1,041American Airlines

Find Deal

Mon, Jan 26 - Sun, Feb 8

11:20 am - 4:14 pmSYD-PHL

20h 54m1 stop

6:46 pm - 7:25 amPHL-SYD

44h 39m1 stop

$1,045American Airlines

Find Deal

Thu, Feb 12 - Mon, Feb 16

11:20 am - 4:14 pmSYD-PHL

20h 54m1 stop

6:46 pm - 7:25 amPHL-SYD

44h 39m1 stop

$1,046American Airlines

Find Deal

Thu, Feb 12 - Mon, Feb 16

Air Canada flights from Sydney to Philadelphia

Our best Air Canada deals on Sydney to Philadelphia flight tickets

Air Canada

Jan 26

SYD11:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

Feb 8

PHL4:05 pmPhiladelphia

49h 30m

2 stops

SYD9:35 amSydney Kingsford Smith

$862

Find similar

Air Canada

Jan 26

SYD11:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

Feb 8

PHL3:30 pmPhiladelphia

50h 05m

3 stops

SYD9:35 amSydney Kingsford Smith

$865

Find similar

Air Canada

Feb 12

SYD11:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

Feb 16

PHL3:30 pmPhiladelphia

26h 05m

2 stops

SYD9:35 amSydney Kingsford Smith

$868

Find similar

American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Jan 26

SYD11:20 amSydney Kingsford Smith

28h 28m

1 stop

PHL11:48 pmPhiladelphia

Feb 8

PHL2:30 pmPhiladelphia

26h 30m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,041

Find similar

American Airlines

Feb 12

SYD11:20 amSydney Kingsford Smith

20h 54m

1 stop

PHL4:14 pmPhiladelphia

Feb 16

PHL6:46 pmPhiladelphia

44h 39m

1 stop

SYD7:25 amSydney Kingsford Smith

$1,045

Find similar

American Airlines

Feb 12

SYD11:20 amSydney Kingsford Smith

20h 54m

1 stop

PHL4:14 pmPhiladelphia

Feb 16

PHL6:46 pmPhiladelphia

44h 39m

1 stop

SYD7:25 amSydney Kingsford Smith

$1,046

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/26

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Sun 2/8

4:05 pm-9:35 am

2 stops49h 30m

$862

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/26

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Sun 2/8

3:30 pm-9:35 am

3 stops50h 05m

$865

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Mon 2/16

3:30 pm-9:35 am

2 stops26h 05m

$868

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Mon 2/16

3:30 pm-9:35 am

2 stops26h 05m

$869

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Mon 2/16

3:30 pm-9:35 am

2 stops26h 05m

$875

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Mon 2/16

3:30 pm-9:35 am

2 stops26h 05m

$876

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/26

11:20 am-2:47 pm

3 stops43h 27m

Philadelphia

Sun 2/8

3:30 pm-9:35 am

3 stops50h 05m

$1,003

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 1/26

11:20 am-11:48 pm

1 stop28h 28m

Philadelphia

Sun 2/8

2:30 pm-9:00 am

1 stop26h 30m

$1,041

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-4:14 pm

1 stop20h 54m

Philadelphia

Mon 2/16

6:46 pm-7:25 am

1 stop44h 39m

$1,045

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 2/12

11:20 am-4:14 pm

1 stop20h 54m

Philadelphia

Mon 2/16

6:46 pm-7:25 am

1 stop44h 39m

$1,046

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $1,393 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 17% 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

Fastest flight time	20h 53m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 20h 53m

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

Search flight deals

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 20h 52m.
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 December 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 7.5 947 reviews		Search Qantas Airways flights

Wildwood

Cape May

Rehoboth Beach

Ocean City

Wildwood Crest

King of Prussia

Cherry Hill

Newark

Dewey Beach

Reading

North Wildwood

Avalon

Dover

Lewes

Stone Harbor

Essington

Vineland

Pottstown

Somers Point

Elkton

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.