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

United Airlines, Air New Zealand, and Virgin Australia are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Delta, United Airlines and Qantas Airways 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 44% 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.

$635 Cheap Flights from Sydney to Philadelphia in 2026

Q: What is the typical price of a round-trip flight between Sydney and Philadelphia?

Prices are currently low for flights on this route. Typical prices usually range from $1,921 to $1,414. The lowest price recently found on this route was $1,028.

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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.

9:30 am - 9:19 pm

SYD

PHL

25h 49m

2 stops

4:14 pm - 7:00 am

PHL

SYD

24h 46m

2 stops

$1,028United Airlines

Mon, Jun 8 - Mon, Jun 22

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

1:31 pm - 6:55 am

PHL

SYD

27h 24m

2 stops

$1,029United Airlines

Mon, Jun 8 - Tue, Jun 16

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

3:48 pm - 7:00 am

PHL

SYD

25h 12m

2 stops

$1,034United Airlines

Mon, Aug 10 - Wed, Sep 2

9:30 am - 6:55 pm

SYD

PHL

23h 25m

2 stops

3:10 pm - 7:00 am

PHL

SYD

25h 50m

2 stops

$1,078United Airlines

Fri, Jun 5 - Sun, Jun 21

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:23 pm - 6:55 am

PHL

SYD

22h 32m

1 stop

$1,079United Airlines

Fri, Jun 5 - Sun, Jun 21

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:23 pm - 6:55 am

PHL

SYD

22h 32m

1 stop

$1,128United Airlines

Fri, Jun 5 - Fri, Jun 19

9:30 am - 7:15 pm

SYD

PHL

23h 45m

2 stops

3:48 pm - 6:55 am

PHL

SYD

25h 07m

2 stops

$1,129United Airlines

Sat, Aug 29 - Sat, Sep 12

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:23 pm - 6:55 am

PHL

SYD

22h 32m

1 stop

$1,137United Airlines

Thu, Jul 16 - Mon, Jul 27

6:15 am - 6:27 am

SYD

PHL

38h 12m

3 stops

8:30 am - 10:10 pm

PHL

SYD

47h 40m

3 stops

$1,171Multiple Airlines

Tue, Jun 23 - Tue, Jun 30

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,236Virgin Australia

Thu, Jul 16 - Mon, Jul 27

American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Aug 6

SYD9:10 amSydney Kingsford Smith

34h 34m

2 stops

PHL5:44 amPhiladelphia

Aug 10

PHL12:57 pmPhiladelphia

27h 58m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,543

American Airlines

Nov 7

SYD11:15 amSydney Kingsford Smith

28h 31m

1 stop

PHL11:46 pmPhiladelphia

Nov 27

PHL7:02 pmPhiladelphia

21h 58m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,546

American Airlines

Jun 10

SYD9:10 amSydney Kingsford Smith

21h 17m

1 stop

PHL4:27 pmPhiladelphia

Jun 16

PHL9:59 pmPhiladelphia

43h 06m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,762

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Jun 8

SYD9:30 amSydney Kingsford Smith

23h 27m

2 stops

PHL6:57 pmPhiladelphia

Jun 21

PHL1:31 pmPhiladelphia

27h 29m

2 stops

SYD7:00 amSydney Kingsford Smith

$1,028

United Airlines

Jun 8

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jun 17

PHL6:23 pmPhiladelphia

22h 32m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,029

United Airlines

Aug 10

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Sep 2

PHL3:48 pmPhiladelphia

25h 12m

2 stops

SYD7:00 amSydney Kingsford Smith

$1,034

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/8

9:30 am-9:19 pm

2 stops25h 49m

Philadelphia

Mon 6/22

4:14 pm-7:00 am

2 stops24h 46m

$1,028

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/8

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Tue 6/16

1:31 pm-6:55 am

2 stops27h 24m

$1,029

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/10

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Wed 9/2

3:48 pm-7:00 am

2 stops25h 12m

$1,034

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/5

9:30 am-6:55 pm

2 stops23h 25m

Philadelphia

Sun 6/21

3:10 pm-7:00 am

2 stops25h 50m

$1,078

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/5

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Sun 6/21

6:23 pm-6:55 am

1 stop22h 32m

$1,079

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/5

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Fri 6/19

6:23 pm-6:55 am

1 stop22h 32m

$1,128

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 8/29

9:30 am-7:15 pm

2 stops23h 45m

Philadelphia

Sat 9/12

3:48 pm-6:55 am

2 stops25h 07m

$1,129

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/16

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Mon 7/27

6:23 pm-6:55 am

1 stop22h 32m

$1,137

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 6/23

6:15 am-6:27 am

3 stops38h 12m

Philadelphia

Tue 6/30

8:30 am-10:10 pm

3 stops47h 40m

$1,171

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/16

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Mon 7/27

6:00 am-6:55 am

1 stop34h 55m

$1,236

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 typical price of a round-trip flight between Sydney and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Sydney is in October. Flight prices, which tend to average around $1,135, 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 $1,139.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 24% 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 May 2026, prices for Sydney to Philadelphia flights are approximately 35% 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	24h 35m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 24h 35m

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

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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 24h 35m.
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.

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Wildwood Crest

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Cherry Hill

King of Prussia

Newark

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Reading

Dover

North Wildwood

Avalon

Lewes

Stone Harbor

Essington

New Castle

Vineland

Chester

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.