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

American Airlines and United Airlines are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Delta, Air Canada and United Airlines are the top three most popular airlines that fly to Philadelphia from Sydney according to our data. Delta is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 4 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 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.

$855 Cheap Flights from Sydney to Philadelphia in 2026

Find the cheapest flights from Sydney to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

9:27 am - 6:55 am

PHL

SYD

31h 28m

1 stop

$1,010United Airlines

Mon, Aug 24 - Mon, Aug 31

10:20 am - 7:15 pm

SYD

PHL

22h 55m

1 stop

1:06 pm - 7:00 am

PHL

SYD

27h 54m

2 stops

$1,054United Airlines

Tue, Aug 25 - Thu, Sep 10

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

9:27 am - 6:55 am

PHL

SYD

31h 28m

1 stop

$1,060United Airlines

Sun, Aug 30 - Sun, Sep 6

6:15 am - 12:26 pm

SYD

PHL

44h 11m

3 stops

10:37 am - 11:50 am

PHL

SYD

35h 13m

3 stops

$1,096Multiple Airlines

Tue, Aug 25 - Thu, Sep 10

10:20 am - 7:15 pm

SYD

PHL

22h 55m

1 stop

9:27 am - 6:55 am

PHL

SYD

31h 28m

1 stop

$1,127Lufthansa

Sat, Aug 29 - Sat, Sep 5

12:00 pm - 6:48 pm

SYD

PHL

20h 48m

1 stop

7:17 am - 7:05 am

PHL

SYD

33h 48m

1 stop

$1,152British Airways

Sun, Aug 30 - Sun, Sep 6

9:15 am - 11:26 pm

SYD

PHL

28h 11m

2 stops

6:59 pm - 6:50 am

PHL

SYD

45h 51m

2 stops

$1,157Delta

Tue, Aug 4 - Sat, Aug 15

9:30 am - 12:57 am

SYD

PHL

29h 27m

2 stops

3:10 pm - 6:55 am

PHL

SYD

25h 45m

2 stops

$1,165United Airlines

Thu, Aug 6 - Mon, Aug 10

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,169United Airlines

Thu, Aug 13 - Mon, Aug 17

10:20 am - 11:44 pm

SYD

PHL

27h 24m

2 stops

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,170United Airlines

Thu, Aug 13 - Mon, Aug 17

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

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Jul 20

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jul 27

PHL6:00 amPhiladelphia

35h 00m

2 stops

SYD7:00 amSydney Kingsford Smith

$1,005

United Airlines

Aug 24

SYD10:20 amSydney Kingsford Smith

21h 10m

1 stop

PHL5:30 pmPhiladelphia

Aug 31

PHL10:34 amPhiladelphia

30h 21m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,010

United Airlines

Jul 20

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Aug 15

PHL7:40 pmPhiladelphia

45h 20m

2 stops

SYD7:00 amSydney Kingsford Smith

$1,011

American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Aug 29

SYD9:10 amSydney Kingsford Smith

21h 10m

1 stop

PHL4:20 pmPhiladelphia

Sep 5

PHL3:37 pmPhiladelphia

25h 28m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,310

American Airlines

Jul 20

SYD9:10 amSydney Kingsford Smith

21h 18m

1 stop

PHL4:28 pmPhiladelphia

Jul 27

PHL6:01 pmPhiladelphia

23h 04m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,314

American Airlines

Aug 29

SYD9:10 amSydney Kingsford Smith

23h 38m

2 stops

PHL6:48 pmPhiladelphia

Sep 5

PHL2:08 pmPhiladelphia

26h 57m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,315

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/24

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Mon 8/31

9:27 am-6:55 am

1 stop31h 28m

$1,010

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 8/25

10:20 am-7:15 pm

1 stop22h 55m

Philadelphia

Thu 9/10

1:06 pm-7:00 am

2 stops27h 54m

$1,054

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 8/30

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Sun 9/6

9:27 am-6:55 am

1 stop31h 28m

$1,060

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 8/25

6:15 am-12:26 pm

3 stops44h 11m

Philadelphia

Thu 9/10

10:37 am-11:50 am

3 stops35h 13m

$1,096

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 8/29

10:20 am-7:15 pm

1 stop22h 55m

Philadelphia

Sat 9/5

9:27 am-6:55 am

1 stop31h 28m

$1,127

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 8/30

12:00 pm-6:48 pm

1 stop20h 48m

Philadelphia

Sun 9/6

7:17 am-7:05 am

1 stop33h 48m

$1,152

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 8/4

9:15 am-11:26 pm

2 stops28h 11m

Philadelphia

Sat 8/15

6:59 pm-6:50 am

2 stops45h 51m

$1,157

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:30 am-12:57 am

2 stops29h 27m

Philadelphia

Mon 8/10

3:10 pm-6:55 am

2 stops25h 45m

$1,165

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/13

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Mon 8/17

6:36 pm-6:55 am

1 stop22h 19m

$1,169

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/13

10:20 am-11:44 pm

2 stops27h 24m

Philadelphia

Mon 8/17

6:36 pm-6:55 am

1 stop22h 19m

$1,170

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 July. Flight prices, which tend to average around $1,094, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $1,152.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 75% on your flight if you consider stops on a Sydney to Philadelphia flight.

How have Sydney to Philadelphia flight prices changed over time?

As of July 2026, prices for Sydney to Philadelphia flights are approximately 19% cheaper when compared to flights at the same time last year.

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 57m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 20h 57m

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

Search flight deals

Frequently asked questions about flying from Sydney to Philadelphia

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 57m.
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 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.

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Dewey Beach

Dover

Essington

North Wildwood

New Castle

Avalon

Lewes

Chester

Stone Harbor

Vineland

Pottstown

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.