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

Delta 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 Qantas Airways 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 31% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 5 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.

$694 Cheap Flights from Sydney to Philadelphia in 2026

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Find the cheapest flights from Sydney to Philadelphia

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9:10 am - 12:54 am

SYD

PHL

29h 44m

2 stops

8:00 am - 7:05 am

PHL

SYD

33h 05m

2 stops

$1,229Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

9:15 am - 5:59 am

SYD

PHL

34h 44m

2 stops

7:03 am - 6:50 am

PHL

SYD

33h 47m

2 stops

$1,331Delta

Mon, Apr 13 - Mon, Apr 20

9:15 am - 8:36 am

SYD

PHL

37h 21m

2 stops

6:15 am - 6:50 am

PHL

SYD

34h 35m

2 stops

$1,620Delta

Thu, Jun 18 - Sun, Jun 28

9:15 am - 9:37 am

SYD

PHL

38h 22m

2 stops

6:45 am - 6:50 am

PHL

SYD

34h 05m

2 stops

$1,628Delta

Thu, Jun 18 - Sun, Jun 28

8:45 pm - 9:05 am

SYD

PHL

50h 20m

1 stop

6:33 pm - 5:10 pm

PHL

SYD

32h 37m

2 stops

$1,673Qatar Airways

Mon, Apr 13 - Mon, Apr 20

9:10 am - 4:27 pm

SYD

PHL

21h 17m

1 stop

3:29 pm - 7:05 am

PHL

SYD

25h 36m

1 stop

$1,678American Airlines

Thu, Jun 18 - Sun, Jun 28

9:10 am - 6:25 pm

SYD

PHL

23h 15m

1 stop

3:29 pm - 7:05 am

PHL

SYD

25h 36m

1 stop

$1,680American Airlines

Thu, Jun 18 - Sun, Jun 28

9:10 am - 8:38 pm

SYD

PHL

25h 28m

1 stop

5:43 pm - 7:05 am

PHL

SYD

23h 22m

1 stop

$1,681American Airlines

Thu, Jun 18 - Sun, Jun 28

9:15 am - 8:36 am

SYD

PHL

37h 21m

2 stops

6:45 am - 6:50 am

PHL

SYD

34h 05m

2 stops

$1,687Delta

Thu, Jun 18 - Sun, Jun 28

8:45 pm - 9:05 am

SYD

PHL

50h 20m

1 stop

8:30 pm - 5:10 pm

PHL

SYD

30h 40m

1 stop

$1,769Qatar Airways

Mon, Apr 13 - Mon, Apr 20

Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets

Delta

Apr 13

SYD9:15 amSydney Kingsford Smith

34h 44m

2 stops

PHL5:59 amPhiladelphia

Apr 20

PHL7:03 amPhiladelphia

33h 47m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,331

Delta

Jun 18

SYD9:15 amSydney Kingsford Smith

37h 21m

2 stops

PHL8:36 amPhiladelphia

Jun 28

PHL6:15 amPhiladelphia

34h 35m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,620

Delta

Jun 18

SYD9:15 amSydney Kingsford Smith

38h 22m

2 stops

PHL9:37 amPhiladelphia

Jun 28

PHL6:45 amPhiladelphia

34h 05m

2 stops

SYD6:50 amSydney Kingsford Smith

$1,628

Qatar Airways flights from Sydney to Philadelphia

Our best Qatar Airways deals on Sydney to Philadelphia flight tickets

Qatar Airways

Apr 13

SYD8:45 pmSydney Kingsford Smith

50h 20m

1 stop

PHL9:05 amPhiladelphia

Apr 20

PHL6:33 pmPhiladelphia

32h 37m

2 stops

SYD5:10 pmSydney Kingsford Smith

$1,673

Qatar Airways

Apr 13

SYD8:45 pmSydney Kingsford Smith

50h 20m

1 stop

PHL9:05 amPhiladelphia

Apr 20

PHL8:30 pmPhiladelphia

30h 40m

1 stop

SYD5:10 pmSydney Kingsford Smith

$1,769

Qatar Airways

May 22

SYD8:45 pmSydney Kingsford Smith

50h 15m

1 stop

PHL9:00 amPhiladelphia

May 26

PHL8:30 pmPhiladelphia

30h 40m

1 stop

SYD5:10 pmSydney Kingsford Smith

$1,970

Fly from

Fly to

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 4/14

9:10 am-12:54 am

2 stops29h 44m

Philadelphia

Tue 4/21

8:00 am-7:05 am

2 stops33h 05m

$1,229

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/13

9:15 am-5:59 am

2 stops34h 44m

Philadelphia

Mon 4/20

7:03 am-6:50 am

2 stops33h 47m

$1,331

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:15 am-8:36 am

2 stops37h 21m

Philadelphia

Sun 6/28

6:15 am-6:50 am

2 stops34h 35m

$1,620

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:15 am-9:37 am

2 stops38h 22m

Philadelphia

Sun 6/28

6:45 am-6:50 am

2 stops34h 05m

$1,628

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/13

8:45 pm-9:05 am

1 stop50h 20m

Philadelphia

Mon 4/20

6:33 pm-5:10 pm

2 stops32h 37m

$1,673

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-4:27 pm

1 stop21h 17m

Philadelphia

Sun 6/28

3:29 pm-7:05 am

1 stop25h 36m

$1,678

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-6:25 pm

1 stop23h 15m

Philadelphia

Sun 6/28

3:29 pm-7:05 am

1 stop25h 36m

$1,680

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:10 am-8:38 pm

1 stop25h 28m

Philadelphia

Sun 6/28

5:43 pm-7:05 am

1 stop23h 22m

$1,681

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 6/18

9:15 am-8:36 am

2 stops37h 21m

Philadelphia

Sun 6/28

6:45 am-6:50 am

2 stops34h 05m

$1,687

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/13

8:45 pm-9:05 am

1 stop50h 20m

Philadelphia

Mon 4/20

8:30 pm-5:10 pm

1 stop30h 40m

$1,769

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 cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Sydney is in February. Flight prices, which tend to average around $784, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $793.

How far in advance should I book a flight 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 $1,349 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 $783 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 33% 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 March 2026, prices for Sydney to Philadelphia flights are approximately 10% 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	32h 38m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 32h 38m

There are no direct flights from Sydney to Philadelphia. There are no popular flight routes from Sydney to Philadelphia.

Search flight deals

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 32h 38m.
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.