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

Qantas Airways and Air Canada are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Delta, Qantas Airways 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 36% 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.

$789 Cheap Flights from Sydney to Philadelphia in 2026/27

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.

11:10 am - 5:15 amSYD Sydney Kingsford Smith-PHL Philadelphia

34h 05m2 stops Los Angeles Phoenix Sky Harbor Intl

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

31h 55m1 stop Dallas/Fort Worth

$1,271American Airlines

Thu, Nov 5 - Mon, Nov 9

6:50 pm - 7:18 amSYD Sydney Kingsford Smith-PHL Philadelphia

27h 28m2 stops Los Angeles Las Vegas Harry Reid Intl

5:50 am - 6:25 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 35m2 stops Denver Intl Los Angeles

$1,365Multiple Airlines

Sat, Oct 17 - Sat, Oct 24

11:10 am - 6:58 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 48m2 stops Los Angeles Dallas/Fort Worth

3:14 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 46m2 stops Dallas/Fort Worth Los Angeles

$1,412American Airlines

Tue, Nov 3 - Tue, Nov 10

9:25 pm - 7:20 amSYD Sydney Kingsford Smith-PHL Philadelphia

25h 55m1 stop San Francisco

3:55 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 05m1 stop Los Angeles

$1,413American Airlines

Wed, Dec 2 - Wed, Jan 27

11:50 am - 7:39 amSYD Sydney Kingsford Smith-PHL Philadelphia

35h 49m2 stops Auckland Intl San Francisco

6:00 am - 10:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

36h 35m2 stops San Francisco Auckland Intl

$1,414Air New Zealand

Fri, Nov 6 - Fri, Nov 13

11:20 am - 5:49 pmSYD Sydney Kingsford Smith-PHL Philadelphia

22h 29m1 stop Los Angeles

2:29 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

26h 31m1 stop Los Angeles

$1,463American Airlines

Fri, Dec 4 - Wed, Jan 27

11:10 am - 8:35 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 25m1 stop Los Angeles

3:14 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 41m1 stop Dallas/Fort Worth

$1,470Qantas Airways

Sun, Nov 22 - Sun, Dec 6

11:10 am - 6:44 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 34m2 stops Los Angeles Charlotte Douglas

10:30 am - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 30m1 stop Los Angeles

$1,476American Airlines

Sun, Nov 22 - Sun, Dec 6

5:50 pm - 9:05 amSYD Sydney Kingsford Smith-PHL Philadelphia

29h 15m2 stops Los Angeles Orlando

5:50 am - 7:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

34h 40m2 stops Denver Intl Los Angeles

$1,481Multiple Airlines

Fri, Oct 2 - Sat, Oct 17

11:30 am - 5:40 amSYD Sydney Kingsford Smith-PHL Philadelphia

34h 10m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

7:00 am - 9:50 amPHL Philadelphia-SYD Sydney Kingsford Smith

58h 50m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

$1,490Multiple Airlines

Sun, Nov 22 - Thu, Nov 26

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American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Nov 5

SYD11:10 amSydney Kingsford Smith

34h 05m

2 stops

PHL5:15 amPhiladelphia

Nov 9

PHL7:00 amPhiladelphia

31h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,271

American Airlines

Nov 3

SYD11:10 amSydney Kingsford Smith

23h 48m

2 stops

PHL6:58 pmPhiladelphia

Nov 10

PHL3:14 pmPhiladelphia

25h 46m

2 stops

SYD9:00 amSydney Kingsford Smith

$1,412

American Airlines

Dec 2

SYD9:25 pmSydney Kingsford Smith

25h 55m

1 stop

PHL7:20 amPhiladelphia

Jan 27

PHL3:55 pmPhiladelphia

25h 05m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,413

Qantas Airways flights from Sydney to Philadelphia

Our best Qantas Airways deals on Sydney to Philadelphia flight tickets

Qantas Airways

Dec 24

SYD11:20 amSydney Kingsford Smith

21h 17m

1 stop

PHL4:37 pmPhiladelphia

Jan 25

PHL3:55 pmPhiladelphia

25h 05m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,848

Qantas Airways

Dec 24

SYD11:20 amSydney Kingsford Smith

21h 17m

1 stop

PHL4:37 pmPhiladelphia

Jan 25

PHL3:55 pmPhiladelphia

25h 05m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,859

Qantas Airways

Dec 2

SYD11:20 amSydney Kingsford Smith

35h 46m

1 stop

PHL7:06 amPhiladelphia

Jan 26

PHL2:29 pmPhiladelphia

26h 31m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,992

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:10 am-5:15 am

2 stops34h 05m

Philadelphia

Mon 11/9

7:00 am-6:55 am

1 stop31h 55m

$1,271

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sat 10/17

6:50 pm-7:18 am

2 stops27h 28m

Philadelphia

Sat 10/24

5:50 am-6:25 am

2 stops33h 35m

$1,365

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 11/3

11:10 am-6:58 pm

2 stops23h 48m

Philadelphia

Tue 11/10

3:14 pm-9:00 am

2 stops25h 46m

$1,412

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 12/2

9:25 pm-7:20 am

1 stop25h 55m

Philadelphia

Wed 1/27

3:55 pm-9:00 am

1 stop25h 05m

$1,413

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 11/6

11:50 am-7:39 am

2 stops35h 49m

Philadelphia

Fri 11/13

6:00 am-10:35 am

2 stops36h 35m

$1,414

Quickest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 12/4

11:20 am-5:49 pm

1 stop22h 29m

Philadelphia

Wed 1/27

2:29 pm-9:00 am

1 stop26h 31m

$1,463

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 11/22

11:10 am-8:35 pm

1 stop25h 25m

Philadelphia

Sun 12/6

3:14 pm-6:55 am

1 stop23h 41m

$1,470

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 11/22

11:10 am-6:44 pm

2 stops23h 34m

Philadelphia

Sun 12/6

10:30 am-9:00 am

1 stop30h 30m

$1,476

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 10/2

5:50 pm-9:05 am

2 stops29h 15m

Philadelphia

Sat 10/17

5:50 am-7:30 am

2 stops34h 40m

$1,481

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 11/22

11:30 am-5:40 am

2 stops34h 10m

Philadelphia

Thu 11/26

7:00 am-9:50 am

2 stops58h 50m

$1,490

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,635 to $1,991.
The lowest price recently found on this route was $1,271.

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 30% 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 September 2026, prices for Sydney to Philadelphia flights are approximately 96% more expensive 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

Best Price Found	$789
Fastest flight time	21h 17m
Direct flights	None

The best one-way flight to Philadelphia from Sydney in the past 72 hours is $789. The best round-trip flight deal from Sydney to Philadelphia found on momondo in the last 72 hours is $1,271.

The fastest flight from Sydney to Philadelphia takes 21h 17m

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 17m.
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.