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

Air New Zealand and American 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 40% 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.

$503 Cheap Flights from Sydney to Philadelphia in 2026

Find the cheapest flights from Sydney to Philadelphia

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2:15 pm - 9:10 amSYD Sydney Kingsford Smith-PHL Philadelphia

33h 55m3 stops Nadi Los Angeles Orlando

10:15 am - 12:50 pmPHL Philadelphia-SYD Sydney Kingsford Smith

35h 35m3 stops Orlando Los Angeles Nadi

$1,075Multiple Airlines

Wed, Oct 7 - Wed, Oct 21

10:40 am - 12:51 amSYD Sydney Kingsford Smith-PHL Philadelphia

30h 11m2 stops Los Angeles Atlanta Hartsfield-Jackson

4:00 pm - 8:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

48h 30m2 stops Atlanta Hartsfield-Jackson Los Angeles

$1,129Delta

Mon, Jan 11 - Wed, Jan 27

9:10 am - 6:42 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 32m1 stop Los Angeles

1:10 pm - 7:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

27h 55m1 stop Los Angeles

$1,151Qantas Airways

Wed, Sep 9 - Wed, Sep 23

9:15 am - 12:40 amSYD Sydney Kingsford Smith-PHL Philadelphia

29h 25m2 stops Los Angeles Atlanta Hartsfield-Jackson

9:35 am - 6:50 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 15m2 stops Detroit Metropolitan Wayne County Los Angeles

$1,179Delta

Wed, Sep 9 - Wed, Sep 23

9:55 am - 10:31 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 36m2 stops Auckland Intl Houston George Bush Intcntl

6:16 am - 8:45 amPHL Philadelphia-SYD Sydney Kingsford Smith

35h 29m2 stops Houston George Bush Intcntl Auckland Intl

$1,369Air New Zealand

Tue, Oct 20 - Wed, Oct 21

10:10 am - 7:27 pmSYD Sydney Kingsford Smith-PHL Philadelphia

24h 17m2 stops Los Angeles Raleigh-Durham

1:55 pm - 8:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

27h 10m2 stops Charlotte Douglas Los Angeles

$1,431American Airlines

Mon, Oct 5 - Tue, Oct 20

10:10 am - 6:44 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 34m1 stop Los Angeles

7:45 pm - 6:25 amPHL Philadelphia-SYD Sydney Kingsford Smith

43h 40m1 stop Los Angeles

$1,438American Airlines

Mon, Oct 5 - Sat, Oct 24

11:20 am - 5:21 pmSYD Sydney Kingsford Smith-PHL Philadelphia

21h 01m1 stop San Francisco

6:55 pm - 7:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

45h 05m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$1,449United Airlines

Mon, Oct 5 - Sat, Oct 24

11:20 am - 7:24 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 04m2 stops San Francisco Chicago O'Hare Intl

3:52 pm - 8:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 08m2 stops Denver Intl Los Angeles

$1,452United Airlines

Mon, Oct 5 - Sun, Oct 18

10:10 am - 5:26 amSYD Sydney Kingsford Smith-PHL Philadelphia

34h 16m2 stops Los Angeles Phoenix Sky Harbor Intl

8:32 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

43h 23m1 stop Dallas/Fort Worth

$1,456American Airlines

Wed, Oct 21 - Sun, Oct 25

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Qantas Airways flights from Sydney to Philadelphia

Our best Qantas Airways deals on Sydney to Philadelphia flight tickets

Qantas Airways

Sep 9

SYD9:10 amSydney Kingsford Smith

23h 32m

1 stop

PHL6:42 pmPhiladelphia

Sep 23

PHL1:10 pmPhiladelphia

27h 55m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,151

Qantas Airways

Jan 11

SYD11:20 amSydney Kingsford Smith

24h 56m

1 stop

PHL8:16 pmPhiladelphia

Jan 25

PHL4:24 pmPhiladelphia

24h 36m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,790

Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets

Delta

Jan 11

SYD10:40 amSydney Kingsford Smith

30h 11m

2 stops

PHL12:51 amPhiladelphia

Jan 27

PHL4:00 pmPhiladelphia

48h 30m

2 stops

SYD8:30 amSydney Kingsford Smith

$1,129

Delta

Sep 9

SYD9:15 amSydney Kingsford Smith

29h 25m

2 stops

PHL12:40 amPhiladelphia

Sep 23

PHL9:35 amPhiladelphia

31h 15m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,179

Delta

Jan 11

SYD10:40 amSydney Kingsford Smith

30h 11m

2 stops

PHL12:51 amPhiladelphia

Jan 22

PHL5:30 amPhiladelphia

35h 00m

2 stops

SYD8:30 amSydney Kingsford Smith

$1,574

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 10/7

2:15 pm-9:10 am

3 stops33h 55m

Philadelphia

Wed 10/21

10:15 am-12:50 pm

3 stops35h 35m

$1,075

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 1/11

10:40 am-12:51 am

2 stops30h 11m

Philadelphia

Wed 1/27

4:00 pm-8:30 am

2 stops48h 30m

$1,129

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 9/9

9:10 am-6:42 pm

1 stop23h 32m

Philadelphia

Wed 9/23

1:10 pm-7:05 am

1 stop27h 55m

$1,151

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 9/9

9:15 am-12:40 am

2 stops29h 25m

Philadelphia

Wed 9/23

9:35 am-6:50 am

2 stops31h 15m

$1,179

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 10/20

9:55 am-10:31 pm

2 stops27h 36m

Philadelphia

Wed 10/21

6:16 am-8:45 am

2 stops35h 29m

$1,369

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 10/5

10:10 am-7:27 pm

2 stops24h 17m

Philadelphia

Tue 10/20

1:55 pm-8:05 am

2 stops27h 10m

$1,431

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 10/5

10:10 am-6:44 pm

1 stop23h 34m

Philadelphia

Sat 10/24

7:45 pm-6:25 am

1 stop43h 40m

$1,438

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 10/5

11:20 am-5:21 pm

1 stop21h 01m

Philadelphia

Sat 10/24

6:55 pm-7:00 am

2 stops45h 05m

$1,449

Quickest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 10/5

11:20 am-7:24 pm

2 stops23h 04m

Philadelphia

Sun 10/18

3:52 pm-8:00 am

2 stops25h 08m

$1,452

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 10/21

10:10 am-5:26 am

2 stops34h 16m

Philadelphia

Sun 10/25

8:32 pm-6:55 am

1 stop43h 23m

$1,456

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 $1,045, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $1,119.

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 August 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	21h 10m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 21h 10m

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 21h 10m.
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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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.