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, 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 38% 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.

$589 Cheap Flights from Sydney to Philadelphia in 2026/27

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.

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

33h 51m2 stops Los Angeles Phoenix Sky Harbor Intl

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

33h 55m1 stop Dallas/Fort Worth

$1,253American Airlines

Thu, Feb 4 - Mon, Feb 8

11:10 am - 7:30 amSYD Sydney Kingsford Smith-PHL Philadelphia

36h 20m1 stop Los Angeles

8:20 am - 11:45 amPHL Philadelphia-SYD Sydney Kingsford Smith

35h 25m2 stops Dallas/Fort Worth Brisbane

$1,299American Airlines

Thu, Feb 4 - Mon, Feb 8

11:10 am - 7:30 amSYD Sydney Kingsford Smith-PHL Philadelphia

36h 20m1 stop Los Angeles

10:40 am - 11:45 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 05m2 stops Dallas/Fort Worth Brisbane

$1,303American Airlines

Thu, Feb 4 - Mon, Feb 8

9:55 am - 10:59 pmSYD Sydney Kingsford Smith-PHL Philadelphia

29h 04m2 stops Auckland Intl Houston George Bush Intcntl

9:00 am - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

31h 35m2 stops San Francisco Auckland Intl

$1,373Air New Zealand

Tue, Jan 26 - Tue, Feb 9

11:10 am - 7:30 amSYD Sydney Kingsford Smith-PHL Philadelphia

36h 20m1 stop Los Angeles

10:34 am - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 26m1 stop Los Angeles

$1,395American Airlines

Wed, Jan 20 - Sun, Jan 31

9:55 am - 10:57 pmSYD Sydney Kingsford Smith-PHL Philadelphia

29h 02m2 stops Auckland Intl Houston George Bush Intcntl

8:00 am - 10:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

34h 35m2 stops Houston George Bush Intcntl Auckland Intl

$1,396Air New Zealand

Tue, Nov 17 - Mon, Jan 11

3:50 pm - 2:50 pmSYD Sydney Kingsford Smith-PHL Philadelphia

39h 00m1 stop Doha Hamad Intl

4:40 pm - 6:20 pmPHL Philadelphia-SYD Sydney Kingsford Smith

33h 40m2 stops Boston Logan Intl Doha Hamad Intl

$1,440Qatar Airways

Mon, Jan 25 - Mon, Feb 8

11:10 am - 11:54 pmSYD Sydney Kingsford Smith-PHL Philadelphia

28h 44m1 stop Los Angeles

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

25h 05m1 stop Los Angeles

$1,445American Airlines

Mon, Jan 18 - Fri, Jan 29

11:50 am - 5:15 pmSYD Sydney Kingsford Smith-PHL Philadelphia

21h 25m1 stop San Francisco

6:14 pm - 9:05 amPHL Philadelphia-SYD Sydney Kingsford Smith

46h 51m2 stops San Francisco Los Angeles

$1,450United Airlines

Thu, Nov 19 - Fri, Jan 8

9:55 am - 7:45 amSYD Sydney Kingsford Smith-PHL Philadelphia

37h 50m2 stops Auckland Intl San Francisco

8:00 am - 10:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

34h 35m2 stops Houston George Bush Intcntl Auckland Intl

$1,473Air New Zealand

Mon, Jan 25 - Mon, Feb 8

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American Airlines flights from Sydney to Philadelphia

Our best American Airlines deals on Sydney to Philadelphia flight tickets

American Airlines

Feb 4

SYD11:20 amSydney Kingsford Smith

33h 51m

2 stops

PHL5:11 amPhiladelphia

Feb 8

PHL5:00 amPhiladelphia

33h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,253

American Airlines

Feb 4

SYD11:10 amSydney Kingsford Smith

36h 20m

1 stop

PHL7:30 amPhiladelphia

Feb 8

PHL8:20 amPhiladelphia

35h 25m

2 stops

SYD11:45 amSydney Kingsford Smith

$1,299

American Airlines

Feb 4

SYD11:10 amSydney Kingsford Smith

36h 20m

1 stop

PHL7:30 amPhiladelphia

Feb 8

PHL10:40 amPhiladelphia

33h 05m

2 stops

SYD11:45 amSydney Kingsford Smith

$1,303

Qatar Airways flights from Sydney to Philadelphia

Our best Qatar Airways deals on Sydney to Philadelphia flight tickets

Qatar Airways

Jan 25

SYD3:50 pmSydney Kingsford Smith

39h 00m

1 stop

PHL2:50 pmPhiladelphia

Feb 8

PHL4:40 pmPhiladelphia

33h 40m

2 stops

SYD6:20 pmSydney Kingsford Smith

$1,440

Qatar Airways

Jan 27

SYD6:30 pmSydney Kingsford Smith

36h 20m

2 stops

PHL2:50 pmPhiladelphia

Feb 10

PHL4:40 pmPhiladelphia

33h 40m

2 stops

SYD6:20 pmSydney Kingsford Smith

$1,537

Qatar Airways

Jan 26

SYD10:10 pmSydney Kingsford Smith

35h 14m

2 stops

PHL5:24 pmPhiladelphia

Feb 9

PHL8:45 pmPhiladelphia

29h 35m

1 stop

SYD6:20 pmSydney Kingsford Smith

$1,809

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 2/4

11:20 am-5:11 am

2 stops33h 51m

Philadelphia

Mon 2/8

5:00 am-6:55 am

1 stop33h 55m

$1,253

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 2/4

11:10 am-7:30 am

1 stop36h 20m

Philadelphia

Mon 2/8

8:20 am-11:45 am

2 stops35h 25m

$1,299

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 2/4

11:10 am-7:30 am

1 stop36h 20m

Philadelphia

Mon 2/8

10:40 am-11:45 am

2 stops33h 05m

$1,303

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 1/26

9:55 am-10:59 pm

2 stops29h 04m

Philadelphia

Tue 2/9

9:00 am-8:35 am

2 stops31h 35m

$1,373

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Wed 1/20

11:10 am-7:30 am

1 stop36h 20m

Philadelphia

Sun 1/31

10:34 am-9:00 am

1 stop30h 26m

$1,395

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 11/17

9:55 am-10:57 pm

2 stops29h 02m

Philadelphia

Mon 1/11

8:00 am-10:35 am

2 stops34h 35m

$1,396

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 1/25

3:50 pm-2:50 pm

1 stop39h 00m

Philadelphia

Mon 2/8

4:40 pm-6:20 pm

2 stops33h 40m

$1,440

Quickest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 1/18

11:10 am-11:54 pm

1 stop28h 44m

Philadelphia

Fri 1/29

3:55 pm-9:00 am

1 stop25h 05m

$1,445

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/19

11:50 am-5:15 pm

1 stop21h 25m

Philadelphia

Fri 1/8

6:14 pm-9:05 am

2 stops46h 51m

$1,450

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 1/25

9:55 am-7:45 am

2 stops37h 50m

Philadelphia

Mon 2/8

8:00 am-10:35 am

2 stops34h 35m

$1,473

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 $1,109 to $1,263.
The lowest price recently found on this route was $1,253.

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 29% 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 November 2026, prices for Sydney to Philadelphia flights are approximately 24% 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	$589
Fastest flight time	24h 00m
Direct flights	None

The best one-way flight to Philadelphia from Sydney in the past 72 hours is $589. The best round-trip flight deal from Sydney to Philadelphia found on momondo in the last 72 hours is $1,253.

The fastest flight from Sydney to Philadelphia takes 24h 00m

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 24h 00m.
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.