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

Delta is the most popular carrier 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 41% 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

Find the cheapest flights from Sydney to Philadelphia

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:20 am - 5:10 amSYD Sydney Kingsford Smith-PHL Philadelphia

33h 50m2 stops Los Angeles Phoenix Sky Harbor Intl

5:00 am - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 55m1 stop Dallas/Fort Worth

$1,184American Airlines

Thu, Nov 5 - Mon, Nov 9

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

34h 00m2 stops Los Angeles Phoenix Sky Harbor Intl

5:00 am - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 55m1 stop Dallas/Fort Worth

$1,187American Airlines

Thu, Nov 5 - Mon, Nov 9

9:10 am - 9:05 amSYD Sydney Kingsford Smith-PHL Philadelphia

37h 55m2 stops Los Angeles Orlando

8:41 am - 7:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

32h 24m2 stops Atlanta Hartsfield-Jackson Los Angeles

$1,200Multiple Airlines

Sat, Sep 19 - Sat, Sep 26

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

34h 00m2 stops Los Angeles Phoenix Sky Harbor Intl

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

31h 55m1 stop Dallas/Fort Worth

$1,303American Airlines

Thu, Nov 5 - Mon, Nov 9

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

33h 55m2 stops Los Angeles Phoenix Sky Harbor Intl

8:05 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

42h 50m1 stop Dallas/Fort Worth

$1,308American Airlines

Thu, Nov 5 - Mon, Nov 9

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

22h 29m1 stop Los Angeles

1:47 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

27h 13m1 stop Los Angeles

$1,362American Airlines

Thu, Nov 5 - Mon, Nov 9

9:10 am - 11:44 pmSYD Sydney Kingsford Smith-PHL Philadelphia

28h 34m1 stop Los Angeles

10:31 am - 7:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 34m1 stop Los Angeles

$1,364American Airlines

Mon, Sep 21 - Mon, Sep 28

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

22h 29m1 stop Los Angeles

1:47 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

27h 13m1 stop Los Angeles

$1,365American Airlines

Thu, Nov 5 - Mon, Nov 9

9:10 am - 6:19 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 09m2 stops Los Angeles Chicago O'Hare Intl

4:56 pm - 7:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 09m2 stops Charlotte Douglas Los Angeles

$1,368American Airlines

Mon, Sep 21 - Mon, Sep 28

10:10 am - 8:38 pmSYD Sydney Kingsford Smith-PHL Philadelphia

25h 28m1 stop Los Angeles

5:30 pm - 8:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 35m1 stop Los Angeles

$1,386Qantas Airways

Tue, Oct 6 - Tue, Oct 13

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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

SYD11:20 amSydney Kingsford Smith

33h 50m

2 stops

PHL5:10 amPhiladelphia

Nov 9

PHL5:00 amPhiladelphia

33h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,184

American Airlines

Nov 5

SYD11:10 amSydney Kingsford Smith

34h 00m

2 stops

PHL5:10 amPhiladelphia

Nov 9

PHL5:00 amPhiladelphia

33h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,187

American Airlines

Nov 5

SYD11:10 amSydney Kingsford Smith

34h 00m

2 stops

PHL5:10 amPhiladelphia

Nov 9

PHL7:00 amPhiladelphia

31h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,303

Qantas Airways flights from Sydney to Philadelphia

Our best Qantas Airways deals on Sydney to Philadelphia flight tickets

Qantas Airways

Oct 6

SYD10:10 amSydney Kingsford Smith

25h 28m

1 stop

PHL8:38 pmPhiladelphia

Oct 13

PHL5:30 pmPhiladelphia

23h 35m

1 stop

SYD8:05 amSydney Kingsford Smith

$1,386

Qantas Airways

Oct 6

SYD10:10 amSydney Kingsford Smith

25h 25m

2 stops

PHL8:35 pmPhiladelphia

Oct 13

PHL5:30 pmPhiladelphia

23h 35m

1 stop

SYD8:05 amSydney Kingsford Smith

$1,390

Qantas Airways

Dec 23

SYD9:50 pmSydney Kingsford Smith

32h 59m

2 stops

PHL2:49 pmPhiladelphia

Jan 25

PHL4:24 pmPhiladelphia

24h 36m

1 stop

SYD9:00 amSydney Kingsford Smith

$1,949

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

11:20 am-5:10 am

2 stops33h 50m

Philadelphia

Mon 11/9

5:00 am-6:55 am

1 stop33h 55m

$1,184

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:10 am-5:10 am

2 stops34h 00m

Philadelphia

Mon 11/9

5:00 am-6:55 am

1 stop33h 55m

$1,187

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sat 9/19

9:10 am-9:05 am

2 stops37h 55m

Philadelphia

Sat 9/26

8:41 am-7:05 am

2 stops32h 24m

$1,200

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:10 am-5:10 am

2 stops34h 00m

Philadelphia

Mon 11/9

7:00 am-6:55 am

1 stop31h 55m

$1,303

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:15 am-5:10 am

2 stops33h 55m

Philadelphia

Mon 11/9

8:05 pm-6:55 am

1 stop42h 50m

$1,308

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:20 am-5:49 pm

1 stop22h 29m

Philadelphia

Mon 11/9

1:47 pm-9:00 am

1 stop27h 13m

$1,362

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 9/21

9:10 am-11:44 pm

1 stop28h 34m

Philadelphia

Mon 9/28

10:31 am-7:05 am

1 stop30h 34m

$1,364

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/5

11:20 am-5:49 pm

1 stop22h 29m

Philadelphia

Mon 11/9

1:47 pm-9:00 am

1 stop27h 13m

$1,365

Quickest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 9/21

9:10 am-6:19 pm

2 stops23h 09m

Philadelphia

Mon 9/28

4:56 pm-7:05 am

2 stops24h 09m

$1,368

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 10/6

10:10 am-8:38 pm

1 stop25h 28m

Philadelphia

Tue 10/13

5:30 pm-8:05 am

1 stop23h 35m

$1,386

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 typical for flights on this route.

Typical prices usually range from $1,132 to $1,869.
The lowest price recently found on this route was $1,184.

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

Best Price Found	$789
Fastest flight time	21h 09m
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 $1,184.

The fastest flight from Sydney to Philadelphia takes 21h 09m

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 09m.
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.