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

Delta and American Airlines are the most popular carriers operating from Sydney Kingsford Smith to Philadelphia

What airlines fly to Philadelphia?

Delta, Qantas Airways 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 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.

$493 Cheap Flights from Sydney to Philadelphia in 2026/27

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.

10:40 am - 10:56 pmSYD Sydney Kingsford Smith-PHL Philadelphia

28h 16m2 stops Los Angeles Atlanta Hartsfield-Jackson

6:15 am - 8:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

34h 15m2 stops Minneapolis St Paul Los Angeles

$840Delta

Fri, Jan 29 - Thu, Feb 18

11:50 am - 7:39 amSYD Sydney Kingsford Smith-PHL Philadelphia

34h 49m2 stops Auckland Intl San Francisco

6:00 am - 10:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

36h 35m2 stops San Francisco Auckland Intl

$1,344Air New Zealand

Fri, Oct 30 - Sun, Nov 15

11:10 am - 11:50 pmSYD Sydney Kingsford Smith-PHL Philadelphia

28h 40m1 stop Los Angeles

6:39 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

22h 21m1 stop Los Angeles

$1,378American Airlines

Mon, Nov 16 - Mon, Nov 23

10:40 am - 9:27 amSYD Sydney Kingsford Smith-PHL Philadelphia

38h 47m2 stops Los Angeles Atlanta Hartsfield-Jackson

7:00 am - 8:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

33h 30m2 stops Seattle/Tacoma Intl Los Angeles

$1,380Delta

Sun, Nov 15 - Sun, Nov 22

11:10 am - 7:06 amSYD Sydney Kingsford Smith-PHL Philadelphia

35h 56m1 stop Los Angeles

3:55 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 05m1 stop Los Angeles

$1,382American Airlines

Tue, Nov 3 - Tue, Nov 10

10:40 am - 11:49 pmSYD Sydney Kingsford Smith-PHL Philadelphia

29h 09m2 stops Los Angeles Atlanta Hartsfield-Jackson

10:32 am - 8:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

29h 58m2 stops Atlanta Hartsfield-Jackson Los Angeles

$1,386Delta

Tue, Nov 3 - Tue, Nov 10

11:50 am - 11:37 amSYD Sydney Kingsford Smith-PHL Philadelphia

38h 47m3 stops Auckland Intl San Francisco Houston George Bush Intcntl

6:00 am - 8:35 amPHL Philadelphia-SYD Sydney Kingsford Smith

34h 35m2 stops San Francisco Auckland Intl

$1,406Multiple Airlines

Fri, Oct 30 - Sun, Nov 15

11:10 am - 11:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

27h 22m1 stop Los Angeles

3:55 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 05m1 stop Los Angeles

$1,428American Airlines

Fri, Oct 30 - Sun, Nov 15

10:40 am - 12:54 amSYD Sydney Kingsford Smith-PHL Philadelphia

30h 14m2 stops Los Angeles Atlanta Hartsfield-Jackson

11:10 am - 8:30 amPHL Philadelphia-SYD Sydney Kingsford Smith

29h 20m2 stops Atlanta Hartsfield-Jackson Los Angeles

$1,434Delta

Thu, Nov 19 - Thu, Nov 26

11:10 am - 6:31 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 21m2 stops Los Angeles Washington, D.C. Reagan-National

10:30 am - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 30m1 stop Los Angeles

$1,439American Airlines

Thu, Nov 19 - Thu, Nov 26

Cheap last minute flights

Enter your travel dates to find the best prices.

2:15 pm - 7:18 amSYD Sydney Kingsford Smith-PHL Philadelphia

32h 03m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

8:30 am - 12:35 pmPHL Philadelphia-SYD Sydney Kingsford Smith

37h 05m3 stops Atlanta Hartsfield-Jackson Los Angeles Nadi

$1,377Multiple Airlines

Thu, Oct 8 - Mon, Oct 26

9:55 am - 6:55 pmSYD Sydney Kingsford Smith-PHL Philadelphia

48h 00m2 stops Tokyo Haneda Chicago O'Hare Intl

10:30 am - 6:50 amPHL Philadelphia-SYD Sydney Kingsford Smith

29h 20m2 stops Chicago O'Hare Intl Tokyo Haneda

$1,979Japan Airlines

Thu, Oct 8 - Mon, Oct 26

6:50 pm - 7:16 amSYD Sydney Kingsford Smith-PHL Philadelphia

27h 26m1 stop Los Angeles

5:30 pm - 9:00 amPHL Philadelphia-SYD Sydney Kingsford Smith

24h 30m1 stop Los Angeles

$2,080Qantas Airways

Thu, Oct 8 - Mon, Oct 26

10:10 am - 4:19 pmSYD Sydney Kingsford Smith-PHL Philadelphia

21h 09m1 stop Los Angeles

5:30 pm - 10:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

25h 50m2 stops Los Angeles Brisbane

$2,098Qantas Airways

Thu, Oct 8 - Mon, Oct 26

10:30 am - 6:42 pmSYD Sydney Kingsford Smith-PHL Philadelphia

23h 12m2 stops Los Angeles Washington, D.C. Dulles Intl

1:16 pm - 8:40 amPHL Philadelphia-SYD Sydney Kingsford Smith

28h 24m3 stops Chicago O'Hare Intl Denver Intl Los Angeles

$2,130United Airlines

Thu, Oct 8 - Mon, Oct 26

10:20 am - 9:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

3:25 pm - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

49h 55m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$6,530Air Canada

Tue, Oct 6 - Thu, Oct 15

1:00 pm - 6:50 pmSYD Sydney Kingsford Smith-PHL Philadelphia

20h 50m1 stop Dallas/Fort Worth

4:28 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

23h 27m1 stop Dallas/Fort Worth

$7,257Qantas Airways

Tue, Oct 6 - Thu, Oct 15

10:20 am - 9:32 pmSYD Sydney Kingsford Smith-PHL Philadelphia

26h 12m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

1:24 pm - 10:25 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 01m2 stops Chicago O'Hare Intl Tokyo Haneda

$10,492Multiple Airlines

Tue, Oct 6 - Thu, Oct 15

8:40 am - 12:25 amSYD Sydney Kingsford Smith-PHL Philadelphia

30h 45m2 stops Hong Kong Intl Dallas/Fort Worth

5:39 pm - 6:55 amPHL Philadelphia-SYD Sydney Kingsford Smith

22h 16m1 stop Dallas/Fort Worth

$13,761Multiple Airlines

Tue, Oct 6 - Thu, Oct 15

10:20 am - 2:47 pmSYD Sydney Kingsford Smith-PHL Philadelphia

43h 27m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

11:05 am - 8:20 amPHL Philadelphia-SYD Sydney Kingsford Smith

30h 15m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl

$14,258Multiple Airlines

Tue, Oct 6 - Thu, Oct 15

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Delta flights from Sydney to Philadelphia

Our best Delta deals on Sydney to Philadelphia flight tickets

Delta

Jan 29

SYD10:40 amSydney Kingsford Smith

28h 16m

2 stops

PHL10:56 pmPhiladelphia

Feb 18

PHL6:15 amPhiladelphia

34h 15m

2 stops

SYD8:30 amSydney Kingsford Smith

$840

Delta

Nov 15

SYD10:40 amSydney Kingsford Smith

38h 47m

2 stops

PHL9:27 amPhiladelphia

Nov 22

PHL7:00 amPhiladelphia

33h 30m

2 stops

SYD8:30 amSydney Kingsford Smith

$1,380

Delta

Nov 3

SYD10:40 amSydney Kingsford Smith

29h 09m

2 stops

PHL11:49 pmPhiladelphia

Nov 10

PHL10:32 amPhiladelphia

29h 58m

2 stops

SYD8:30 amSydney Kingsford Smith

$1,386

Air New Zealand flights from Sydney to Philadelphia

Our best Air New Zealand deals on Sydney to Philadelphia flight tickets

Air New Zealand

Oct 30

SYD11:50 amSydney Kingsford Smith

34h 49m

2 stops

PHL7:39 amPhiladelphia

Nov 15

PHL6:00 amPhiladelphia

36h 35m

2 stops

SYD10:35 amSydney Kingsford Smith

$1,344

Air New Zealand

Dec 24

SYD9:55 amSydney Kingsford Smith

37h 50m

2 stops

PHL7:45 amPhiladelphia

Jan 25

PHL8:15 amPhiladelphia

36h 35m

2 stops

SYD12:50 pmSydney Kingsford Smith

$1,850

Air New Zealand

Oct 13

SYD11:55 amSydney Kingsford Smith

34h 54m

2 stops

PHL7:49 amPhiladelphia

Oct 23

PHL9:27 amPhiladelphia

34h 08m

2 stops

SYD10:35 amSydney Kingsford Smith

$1,856

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 1/29

10:40 am-10:56 pm

2 stops28h 16m

Philadelphia

Thu 2/18

6:15 am-8:30 am

2 stops34h 15m

$840

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 10/30

11:50 am-7:39 am

2 stops34h 49m

Philadelphia

Sun 11/15

6:00 am-10:35 am

2 stops36h 35m

$1,344

Quickest round-trip

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Mon 11/16

11:10 am-11:50 pm

1 stop28h 40m

Philadelphia

Mon 11/23

6:39 pm-9:00 am

1 stop22h 21m

$1,378

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Sun 11/15

10:40 am-9:27 am

2 stops38h 47m

Philadelphia

Sun 11/22

7:00 am-8:30 am

2 stops33h 30m

$1,380

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 11/3

11:10 am-7:06 am

1 stop35h 56m

Philadelphia

Tue 11/10

3:55 pm-9:00 am

1 stop25h 05m

$1,382

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Tue 11/3

10:40 am-11:49 pm

2 stops29h 09m

Philadelphia

Tue 11/10

10:32 am-8:30 am

2 stops29h 58m

$1,386

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 10/30

11:50 am-11:37 am

3 stops38h 47m

Philadelphia

Sun 11/15

6:00 am-8:35 am

2 stops34h 35m

$1,406

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Fri 10/30

11:10 am-11:32 pm

1 stop27h 22m

Philadelphia

Sun 11/15

3:55 pm-9:00 am

1 stop25h 05m

$1,428

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/19

10:40 am-12:54 am

2 stops30h 14m

Philadelphia

Thu 11/26

11:10 am-8:30 am

2 stops29h 20m

$1,434

SydneyPhiladelphia

SYD Sydney Kingsford Smith - PHL Philadelphia

SYDPHL

Sydney Kingsford Smith

Thu 11/19

11:10 am-6:31 pm

2 stops23h 21m

Philadelphia

Thu 11/26

10:30 am-9:00 am

1 stop30h 30m

$1,439

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,200 to $1,405.
The lowest price recently found on this route was $840.

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 August is another great option to travel to Philadelphia, with average flight prices from Sydney averaging around $1,119.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 30% 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 October 2026, prices for Sydney to Philadelphia flights are approximately 20% 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

Best Price Found	$493
Fastest flight time	21h 27m
Direct flights	None

The best one-way flight to Philadelphia from Sydney in the past 72 hours is $493. The best round-trip flight deal from Sydney to Philadelphia found on momondo in the last 72 hours is $840.

The fastest flight from Sydney to Philadelphia takes 21h 27m

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 21h 27m.
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.