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

Virgin Australia, United Airlines, 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 40% 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.

$841 Cheap Flights from Sydney to Philadelphia in 2026

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.

1:15 pm - 9:05 am-

33h 50m

8:41 am - 10:25 pm-

47h 44m

$884Multiple Airlines

Wed, Sep 9 - Wed, Sep 23

9:20 am - 2:47 pm-

43h 27m

7:00 am - 7:20 am-

34h 20m

$928Air Canada

Wed, Sep 9 - Wed, Sep 23

1:15 pm - 9:05 am-

33h 50m

8:41 am - 11:50 am-

37h 09m

$940Multiple Airlines

Wed, Sep 9 - Wed, Sep 23

11:20 am - 2:17 pm-

42h 57m

3:20 pm - 9:35 am-

50h 15m

$956Air Canada

Wed, Nov 4 - Wed, Nov 18

9:20 am - 9:32 pm-

26h 12m

11:04 am - 7:20 am-

30h 16m

$962Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

11:20 am - 2:44 pm-

43h 24m

3:20 pm - 9:35 am-

26h 15m

$965Air Canada

Wed, Nov 4 - Wed, Nov 18

11:20 am - 2:44 pm-

43h 24m

3:20 pm - 9:35 am-

50h 15m

$981Air Canada

Wed, Nov 4 - Wed, Nov 18

11:20 am - 10:56 pm-

27h 36m

3:20 pm - 9:35 am-

26h 15m

$1,031Air New Zealand

Wed, Nov 4 - Wed, Nov 18

11:20 am - 10:56 pm-

27h 36m

9:15 am - 9:35 am-

32h 20m

$1,035ANA

Wed, Nov 4 - Wed, Nov 18

9:20 am - 9:32 pm-

26h 12m

3:48 pm - 7:20 am-

25h 32m

$1,036Air Canada

Wed, Sep 9 - Wed, Sep 23

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Air Canada flights from Sydney to Philadelphia

Our best Air Canada deals on Sydney to Philadelphia flight tickets

Air Canada

Sep 9

SYD9:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

Sep 23

PHL7:00 amPhiladelphia

34h 20m

2 stops

SYD7:20 amSydney Kingsford Smith

$928

Air Canada

Nov 4

SYD11:20 amSydney Kingsford Smith

42h 57m

3 stops

PHL2:17 pmPhiladelphia

Nov 18

PHL3:20 pmPhiladelphia

50h 15m

2 stops

SYD9:35 amSydney Kingsford Smith

$956

Air Canada

Nov 4

SYD11:20 amSydney Kingsford Smith

43h 24m

2 stops

PHL2:44 pmPhiladelphia

Nov 18

PHL3:20 pmPhiladelphia

26h 15m

2 stops

SYD9:35 amSydney Kingsford Smith

$965

Qantas Airways flights from Sydney to Philadelphia

Our best Qantas Airways deals on Sydney to Philadelphia flight tickets

Qantas Airways

Sep 9

SYD9:10 amSydney Kingsford Smith

23h 32m

1 stop

PHL6:42 pmPhiladelphia

Sep 23

PHL5:30 pmPhiladelphia

23h 35m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,077

Qantas Airways

Sep 9

SYD9:10 amSydney Kingsford Smith

23h 32m

1 stop

PHL6:42 pmPhiladelphia

Sep 23

PHL5:30 pmPhiladelphia

23h 35m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,085

Qantas Airways

Sep 9

SYD9:10 amSydney Kingsford Smith

23h 32m

1 stop

PHL6:42 pmPhiladelphia

Sep 23

PHL5:30 pmPhiladelphia

23h 35m

1 stop

SYD7:05 amSydney Kingsford Smith

$1,090

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

1:15 pm-9:05 am

3 stops33h 50m

Philadelphia

Wed 9/23

8:41 am-10:25 pm

3 stops47h 44m

$884

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

9:20 am-2:47 pm

2 stops43h 27m

Philadelphia

Wed 9/23

7:00 am-7:20 am

2 stops34h 20m

$928

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

1:15 pm-9:05 am

3 stops33h 50m

Philadelphia

Wed 9/23

8:41 am-11:50 am

3 stops37h 09m

$940

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 11/4

11:20 am-2:17 pm

3 stops42h 57m

Philadelphia

Wed 11/18

3:20 pm-9:35 am

2 stops50h 15m

$956

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Tue 9/15

9:20 am-9:32 pm

2 stops26h 12m

Philadelphia

Tue 9/22

11:04 am-7:20 am

2 stops30h 16m

$962

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 11/4

11:20 am-2:44 pm

2 stops43h 24m

Philadelphia

Wed 11/18

3:20 pm-9:35 am

2 stops26h 15m

$965

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 11/4

11:20 am-2:44 pm

3 stops43h 24m

Philadelphia

Wed 11/18

3:20 pm-9:35 am

3 stops50h 15m

$981

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 11/4

11:20 am-10:56 pm

1 stop27h 36m

Philadelphia

Wed 11/18

3:20 pm-9:35 am

2 stops26h 15m

$1,031

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 11/4

11:20 am-10:56 pm

1 stop27h 36m

Philadelphia

Wed 11/18

9:15 am-9:35 am

1 stop32h 20m

$1,035

Quickest round-trip

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

9:20 am-9:32 pm

3 stops26h 12m

Philadelphia

Wed 9/23

3:48 pm-7:20 am

2 stops25h 32m

$1,036

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 July. Flight prices, which tend to average around $1,045, 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.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 75% 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 August 2026, prices for Sydney to Philadelphia flights are approximately 59% more expensive 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	29h 29m
Direct flights	None

The fastest flight from Sydney to Philadelphia takes 29h 29m

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 29h 29m.
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.