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

United Airlines is the most popular carrier 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 42% 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.

$625 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 $1,312 to $1,934. The lowest price recently found on this route was $998.

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.

10:20 am - 7:25 pm

SYD

PHL

23h 05m

2 stops

3:05 pm - 7:00 am

PHL

SYD

25h 55m

2 stops

$998United Airlines

Wed, Aug 19 - Mon, Sep 7

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

8:20 am - 6:55 am

PHL

SYD

32h 35m

2 stops

$1,003United Airlines

Wed, Aug 19 - Mon, Sep 7

9:30 am - 9:19 pm

SYD

PHL

25h 49m

2 stops

8:05 am - 6:55 am

PHL

SYD

32h 50m

2 stops

$1,013United Airlines

Mon, Jul 13 - Sun, Jul 26

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,046United Airlines

Sun, Aug 16 - Mon, Sep 7

10:20 am - 7:49 am

SYD

PHL

35h 29m

1 stop

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,052United Airlines

Mon, Aug 17 - Fri, Sep 4

9:30 am - 12:57 am

SYD

PHL

29h 27m

2 stops

6:56 pm - 7:00 am

PHL

SYD

46h 04m

3 stops

$1,061United Airlines

Sat, Aug 8 - Sat, Aug 15

10:20 am - 8:55 pm

SYD

PHL

24h 35m

1 stop

6:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,094United Airlines

Fri, Aug 14 - Thu, Sep 3

10:20 am - 5:30 pm

SYD

PHL

21h 10m

1 stop

3:48 pm - 7:00 am

PHL

SYD

25h 12m

2 stops

$1,100United Airlines

Fri, Aug 14 - Fri, Sep 4

9:30 am - 12:57 am

SYD

PHL

29h 27m

2 stops

9:27 am - 6:55 am

PHL

SYD

31h 28m

1 stop

$1,110United Airlines

Sat, Aug 8 - Sat, Aug 15

10:30 am - 7:24 pm

SYD

PHL

23h 54m

2 stops

3:05 pm - 9:20 am

PHL

SYD

27h 15m

2 stops

$1,156United Airlines

Thu, Oct 22 - Mon, Oct 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

Oct 22

SYD10:10 amSydney Kingsford Smith

34h 25m

2 stops

PHL5:35 amPhiladelphia

Oct 26

PHL5:00 amPhiladelphia

34h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,177

American Airlines

Oct 22

SYD10:10 amSydney Kingsford Smith

35h 55m

1 stop

PHL7:05 amPhiladelphia

Oct 26

PHL12:04 pmPhiladelphia

27h 51m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,187

American Airlines

Oct 22

SYD10:10 amSydney Kingsford Smith

35h 55m

1 stop

PHL7:05 amPhiladelphia

Oct 26

PHL12:04 pmPhiladelphia

27h 51m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,197

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Aug 19

SYD10:20 amSydney Kingsford Smith

23h 05m

2 stops

PHL7:25 pmPhiladelphia

Sep 7

PHL3:05 pmPhiladelphia

25h 55m

2 stops

SYD7:00 amSydney Kingsford Smith

$998

United Airlines

Aug 19

SYD10:20 amSydney Kingsford Smith

21h 10m

1 stop

PHL5:30 pmPhiladelphia

Sep 7

PHL8:20 amPhiladelphia

32h 35m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,003

United Airlines

Jul 2

SYD9:30 amSydney Kingsford Smith

58h 01m

3 stops

PHL5:31 amPhiladelphia

Jul 25

PHL7:00 pmPhiladelphia

45h 55m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,012

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 8/19

10:20 am-7:25 pm

2 stops23h 05m

Philadelphia

Mon 9/7

3:05 pm-7:00 am

2 stops25h 55m

$998

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 8/19

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Mon 9/7

8:20 am-6:55 am

2 stops32h 35m

$1,003

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/13

9:30 am-9:19 pm

2 stops25h 49m

Philadelphia

Sun 7/26

8:05 am-6:55 am

2 stops32h 50m

$1,013

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 8/16

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Mon 9/7

6:36 pm-6:55 am

1 stop22h 19m

$1,046

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/17

10:20 am-7:49 am

1 stop35h 29m

Philadelphia

Fri 9/4

6:36 pm-6:55 am

1 stop22h 19m

$1,052

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 8/8

9:30 am-12:57 am

2 stops29h 27m

Philadelphia

Sat 8/15

6:56 pm-7:00 am

3 stops46h 04m

$1,061

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 8/14

10:20 am-8:55 pm

1 stop24h 35m

Philadelphia

Thu 9/3

6:00 am-6:55 am

1 stop34h 55m

$1,094

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 8/14

10:20 am-5:30 pm

1 stop21h 10m

Philadelphia

Fri 9/4

3:48 pm-7:00 am

2 stops25h 12m

$1,100

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 8/8

9:30 am-12:57 am

2 stops29h 27m

Philadelphia

Sat 8/15

9:27 am-6:55 am

1 stop31h 28m

$1,110

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 10/22

10:30 am-7:24 pm

2 stops23h 54m

Philadelphia

Mon 10/26

3:05 pm-9:20 am

2 stops27h 15m

$1,156

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 November. Flight prices, which tend to average around $1,152, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $1,250.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 74% 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 June 2026, prices for Sydney to Philadelphia flights are approximately 22% 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	25h 09m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 25h 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 25h 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.