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

United Airlines and Air New Zealand are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Delta, United Airlines and Air Canada 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 37% 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.

$742 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 $1,909 to $1,843. The lowest price recently found on this route was $1,358.

1 adult

0 bags

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.

9:30 am - 6:55 pm

SYD

PHL

23h 25m

2 stops

9:25 am - 6:55 am

PHL

SYD

31h 30m

1 stop

$1,358United Airlines

Mon, Jun 1 - Mon, Jun 8

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

6:23 pm - 6:55 am

PHL

SYD

22h 32m

1 stop

$1,361United Airlines

Wed, Jun 3 - Wed, Jun 17

10:20 am - 5:17 pm

SYD

PHL

20h 57m

1 stop

4:14 pm - 6:55 am

PHL

SYD

24h 41m

2 stops

$1,363United Airlines

Wed, Jun 3 - Wed, Jun 17

10:20 am - 9:19 pm

SYD

PHL

24h 59m

2 stops

3:56 pm - 7:00 am

PHL

SYD

25h 04m

2 stops

$1,364United Airlines

Wed, Jun 3 - Wed, Jun 17

9:30 am - 6:55 pm

SYD

PHL

23h 25m

2 stops

4:14 pm - 7:00 am

PHL

SYD

24h 46m

2 stops

$1,366United Airlines

Wed, Jun 3 - Wed, Jun 17

11:15 am - 6:34 pm

SYD

PHL

22h 19m

1 stop

3:55 pm - 9:00 am

PHL

SYD

25h 05m

1 stop

$1,463Qantas Airways

Tue, Oct 27 - Tue, Nov 3

11:15 am - 8:41 pm

SYD

PHL

24h 26m

1 stop

5:10 pm - 9:00 am

PHL

SYD

23h 50m

2 stops

$1,468American Airlines

Wed, Oct 28 - Wed, Nov 4

9:40 am - 8:37 pm

SYD

PHL

25h 57m

2 stops

4:05 pm - 8:30 am

PHL

SYD

24h 25m

2 stops

$1,473Delta

Mon, Oct 26 - Mon, Nov 2

10:15 am - 6:19 pm

SYD

PHL

23h 04m

2 stops

4:05 pm - 8:30 am

PHL

SYD

24h 25m

2 stops

$1,523Delta

Sun, Oct 25 - Mon, Nov 2

5:50 pm - 11:49 am

SYD

PHL

31h 59m

2 stops

7:27 pm - 7:30 am

PHL

SYD

46h 03m

1 stop

$1,555Multiple Airlines

Thu, Jul 23 - Sun, Jul 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

Virgin Australia flights from Sydney to Philadelphia

Our best Virgin Australia deals on Sydney to Philadelphia flight tickets

Virgin Australia

Jun 3

SYD10:20 amSydney Kingsford Smith

35h 30m

1 stop

PHL7:50 amPhiladelphia

Jun 17

PHL6:00 amPhiladelphia

34h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,562

Virgin Australia

Jun 13

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jun 20

PHL9:25 amPhiladelphia

31h 30m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,882

United Airlines flights from Sydney to Philadelphia

Our best United Airlines deals on Sydney to Philadelphia flight tickets

United Airlines

Jun 1

SYD9:30 amSydney Kingsford Smith

23h 25m

2 stops

PHL6:55 pmPhiladelphia

Jun 8

PHL9:25 amPhiladelphia

31h 30m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,358

United Airlines

Jun 3

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jun 17

PHL6:23 pmPhiladelphia

22h 32m

1 stop

SYD6:55 amSydney Kingsford Smith

$1,361

United Airlines

Jun 3

SYD10:20 amSydney Kingsford Smith

20h 57m

1 stop

PHL5:17 pmPhiladelphia

Jun 17

PHL4:14 pmPhiladelphia

24h 41m

2 stops

SYD6:55 amSydney Kingsford Smith

$1,363

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/1

9:30 am-6:55 pm

2 stops23h 25m

Philadelphia

Mon 6/8

9:25 am-6:55 am

1 stop31h 30m

$1,358

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 6/3

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Wed 6/17

6:23 pm-6:55 am

1 stop22h 32m

$1,361

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 6/3

10:20 am-5:17 pm

1 stop20h 57m

Philadelphia

Wed 6/17

4:14 pm-6:55 am

2 stops24h 41m

$1,363

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 6/3

10:20 am-9:19 pm

2 stops24h 59m

Philadelphia

Wed 6/17

3:56 pm-7:00 am

2 stops25h 04m

$1,364

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 6/3

9:30 am-6:55 pm

2 stops23h 25m

Philadelphia

Wed 6/17

4:14 pm-7:00 am

2 stops24h 46m

$1,366

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 10/27

11:15 am-6:34 pm

1 stop22h 19m

Philadelphia

Tue 11/3

3:55 pm-9:00 am

1 stop25h 05m

$1,463

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 10/28

11:15 am-8:41 pm

1 stop24h 26m

Philadelphia

Wed 11/4

5:10 pm-9:00 am

2 stops23h 50m

$1,468

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 10/26

9:40 am-8:37 pm

2 stops25h 57m

Philadelphia

Mon 11/2

4:05 pm-8:30 am

2 stops24h 25m

$1,473

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 10/25

10:15 am-6:19 pm

2 stops23h 04m

Philadelphia

Mon 11/2

4:05 pm-8:30 am

2 stops24h 25m

$1,523

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/23

5:50 pm-11:49 am

2 stops31h 59m

Philadelphia

Sun 7/26

7:27 pm-7:30 am

1 stop46h 03m

$1,555

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 $1,152.

How far in advance should I book a flight from Sydney to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $1,470 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Sydney for as low as $1,153 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 1% 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 May 2026, prices for Sydney to Philadelphia flights are approximately 27% 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.

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Avalon

Dover

North Wildwood

Lewes

Stone Harbor

New Castle

Essington

Vineland

Pottstown

Somers Point

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.