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

United Airlines, Cathay Pacific, and Qantas Airways 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 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.

$824 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 $1,935 to $1,142. The lowest price recently found on this route was $1,029.

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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.

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

1:35 pm - 6:55 am

PHL

SYD

27h 20m

2 stops

$1,029United Airlines

Mon, Aug 3 - Wed, Aug 19

9:10 am - 9:19 am

SYD

PHL

38h 09m

2 stops

7:35 pm - 6:25 am

PHL

SYD

44h 50m

1 stop

$1,252American Airlines

Thu, Aug 6 - Mon, Aug 10

10:20 am - 5:28 pm

SYD

PHL

21h 08m

1 stop

6:13 pm - 9:15 am

PHL

SYD

24h 02m

1 stop

$1,277United Airlines

Wed, Sep 30 - Wed, Oct 28

9:15 am - 11:56 pm

SYD

PHL

28h 41m

2 stops

12:36 pm - 6:50 am

PHL

SYD

28h 14m

2 stops

$1,286Delta

Tue, Jul 21 - Tue, Jul 28

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

9:25 am - 6:55 am

PHL

SYD

31h 30m

1 stop

$1,298Virgin Australia

Tue, Jul 21 - Tue, Jul 28

10:20 am - 12:23 pm

SYD

PHL

40h 03m

2 stops

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,300United Airlines

Tue, Sep 1 - Wed, Sep 30

9:10 am - 11:48 pm

SYD

PHL

28h 38m

1 stop

5:39 pm - 7:05 am

PHL

SYD

23h 26m

1 stop

$1,329American Airlines

Thu, Aug 6 - Mon, Aug 10

9:10 am - 4:20 pm

SYD

PHL

21h 10m

1 stop

3:37 pm - 7:05 am

PHL

SYD

25h 28m

1 stop

$1,330American Airlines

Thu, Aug 6 - Mon, Aug 10

9:30 am - 11:30 pm

SYD

PHL

28h 00m

2 stops

1:24 pm - 7:00 am

PHL

SYD

27h 36m

2 stops

$1,332United Airlines

Wed, Sep 30 - Thu, Oct 1

9:10 am - 8:40 pm

SYD

PHL

25h 30m

1 stop

6:01 pm - 7:05 am

PHL

SYD

23h 04m

1 stop

$1,353American Airlines

Sat, Jul 18 - Sat, Jul 25

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Aug 3

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Aug 19

PHL1:35 pmPhiladelphia

27h 20m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,029

United Airlines

Sep 30

SYD10:20 amSydney Kingsford Smith

21h 08m

1 stop

PHL5:28 pmPhiladelphia

Oct 28

PHL6:13 pmPhiladelphia

24h 02m

1 stop

SYD9:15 amSydney Kingsford Smith

$1,277

United Airlines

Sep 1

SYD10:20 amSydney Kingsford Smith

37h 47m

2 stops

PHL10:07 amPhiladelphia

Sep 30

PHL3:05 pmPhiladelphia

25h 50m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,300

Air Canada flights from Sydney to Philadelphia

Our best Air Canada deals on Sydney to Philadelphia flight tickets

Air Canada

Sep 30

SYD9:20 amSydney Kingsford Smith

43h 27m

3 stops

PHL2:47 pmPhiladelphia

Oct 28

PHL3:20 pmPhiladelphia

50h 15m

3 stops

SYD8:35 amSydney Kingsford Smith

$1,906

Air Canada

Jul 30

SYD9:20 amSydney Kingsford Smith

43h 29m

3 stops

PHL2:49 pmPhiladelphia

Aug 7

PHL3:25 pmPhiladelphia

25h 55m

2 stops

SYD7:20 amSydney Kingsford Smith

$1,934

Air Canada

Jul 30

SYD9:20 amSydney Kingsford Smith

43h 29m

3 stops

PHL2:49 pmPhiladelphia

Aug 7

PHL10:05 amPhiladelphia

31h 15m

3 stops

SYD7:20 amSydney Kingsford Smith

$1,941

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/3

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Wed 8/19

1:35 pm-6:55 am

2 stops27h 20m

$1,029

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:10 am-9:19 am

2 stops38h 09m

Philadelphia

Mon 8/10

7:35 pm-6:25 am

1 stop44h 50m

$1,252

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/30

10:20 am-5:28 pm

1 stop21h 08m

Philadelphia

Wed 10/28

6:13 pm-9:15 am

1 stop24h 02m

$1,277

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 7/21

9:15 am-11:56 pm

2 stops28h 41m

Philadelphia

Tue 7/28

12:36 pm-6:50 am

2 stops28h 14m

$1,286

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 7/21

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Tue 7/28

9:25 am-6:55 am

1 stop31h 30m

$1,298

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/1

10:20 am-12:23 pm

2 stops40h 03m

Philadelphia

Wed 9/30

6:36 pm-6:55 am

1 stop22h 19m

$1,300

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:10 am-11:48 pm

1 stop28h 38m

Philadelphia

Mon 8/10

5:39 pm-7:05 am

1 stop23h 26m

$1,329

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:10 am-4:20 pm

1 stop21h 10m

Philadelphia

Mon 8/10

3:37 pm-7:05 am

1 stop25h 28m

$1,330

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/30

9:30 am-11:30 pm

2 stops28h 00m

Philadelphia

Thu 10/1

1:24 pm-7:00 am

2 stops27h 36m

$1,332

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 7/18

9:10 am-8:40 pm

1 stop25h 30m

Philadelphia

Sat 7/25

6:01 pm-7:05 am

1 stop23h 04m

$1,353

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 October. Flight prices, which tend to average around $1,135, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $1,139.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 24% 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 11% 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	20h 57m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 20h 57m

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 20h 57m.
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.