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.

$866 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 $1,013.

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 - 1:23 am

SYD

PHL

29h 03m

1 stop

6:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,013United Airlines

Mon, Jul 13 - Sun, Jul 26

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,018United Airlines

Thu, Jul 16 - Tue, Jul 28

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:36 pm - 6:55 am

PHL

SYD

22h 19m

1 stop

$1,063United Airlines

Tue, Jul 21 - Thu, Aug 20

6:15 am - 12:26 pm

SYD

PHL

44h 11m

3 stops

10:40 am - 11:50 am

PHL

SYD

35h 10m

3 stops

$1,176Multiple Airlines

Fri, Aug 28 - Mon, Aug 31

10:10 am - 5:35 am

SYD

PHL

34h 25m

2 stops

5:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,177American Airlines

Thu, Oct 22 - Mon, Oct 26

10:10 am - 5:35 am

SYD

PHL

34h 25m

2 stops

5:00 am - 6:55 am

PHL

SYD

34h 55m

1 stop

$1,183American Airlines

Thu, Oct 22 - Mon, Oct 26

10:10 am - 7:05 am

SYD

PHL

35h 55m

1 stop

12:04 pm - 6:55 am

PHL

SYD

27h 51m

2 stops

$1,200American Airlines

Thu, Oct 22 - Mon, Oct 26

9:15 am - 1:19 am

SYD

PHL

30h 04m

2 stops

2:31 pm - 6:50 am

PHL

SYD

26h 19m

2 stops

$1,210Delta

Thu, Aug 6 - Thu, Aug 13

9:15 am - 9:37 pm

SYD

PHL

26h 22m

2 stops

10:00 am - 6:50 am

PHL

SYD

30h 50m

2 stops

$1,211Delta

Fri, Aug 28 - Mon, Aug 31

10:30 am - 7:24 pm

SYD

PHL

23h 54m

2 stops

3:05 pm - 9:20 am

PHL

SYD

27h 15m

2 stops

$1,272United Airlines

Thu, Oct 22 - Mon, Oct 26

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets

Delta

Aug 6

SYD9:15 amSydney Kingsford Smith

30h 04m

2 stops

PHL1:19 amPhiladelphia

Aug 13

PHL2:31 pmPhiladelphia

26h 19m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,210

Delta

Aug 28

SYD9:15 amSydney Kingsford Smith

26h 22m

2 stops

PHL9:37 pmPhiladelphia

Aug 31

PHL10:00 amPhiladelphia

30h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,211

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Jul 13

SYD10:20 amSydney Kingsford Smith

29h 03m

1 stop

PHL1:23 amPhiladelphia

Jul 26

PHL6:00 amPhiladelphia

34h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,013

United Airlines

Jul 16

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jul 28

PHL6:00 amPhiladelphia

34h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,018

United Airlines

Jul 21

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Aug 20

PHL6:36 pmPhiladelphia

22h 19m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,063

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 7/13

10:20 am-1:23 am

1 stop29h 03m

Philadelphia

Sun 7/26

6:00 am-6:55 am

1 stop34h 55m

$1,013

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/16

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Tue 7/28

6:00 am-6:55 am

1 stop34h 55m

$1,018

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 7/21

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Thu 8/20

6:36 pm-6:55 am

1 stop22h 19m

$1,063

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 8/28

6:15 am-12:26 pm

3 stops44h 11m

Philadelphia

Mon 8/31

10:40 am-11:50 am

3 stops35h 10m

$1,176

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 10/22

10:10 am-5:35 am

2 stops34h 25m

Philadelphia

Mon 10/26

5:00 am-6:55 am

1 stop34h 55m

$1,177

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 10/22

10:10 am-5:35 am

2 stops34h 25m

Philadelphia

Mon 10/26

5:00 am-6:55 am

1 stop34h 55m

$1,183

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 10/22

10:10 am-7:05 am

1 stop35h 55m

Philadelphia

Mon 10/26

12:04 pm-6:55 am

2 stops27h 51m

$1,200

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/6

9:15 am-1:19 am

2 stops30h 04m

Philadelphia

Thu 8/13

2:31 pm-6:50 am

2 stops26h 19m

$1,210

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 8/28

9:15 am-9:37 pm

2 stops26h 22m

Philadelphia

Mon 8/31

10:00 am-6:50 am

2 stops30h 50m

$1,211

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

$1,272

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	44h 11m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 44h 11m

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 44h 11m.
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.

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Dewey Beach

Dover

North Wildwood

Essington

Avalon

New Castle

Lewes

Stone Harbor

Vineland

Chester

Pottstown

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.