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Cheap flights from Sydney to Philadelphia from $637

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Philadelphia departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Sydney to Philadelphia

Cheap round-trip flights

Air New Zealand Logo
11:50 am - 5:26 amSYD-PHL
31h 36m2 stops
Air New Zealand Logo
8:15 am - 8:45 amPHL-SYD
34h 30m2 stops
$1,086Air New Zealand
Find Deal
Sun, Sep 14 - Sun, Sep 21
Air New Zealand Logo
11:50 am - 5:26 amSYD-PHL
31h 36m2 stops
Air New Zealand Logo
8:15 am - 8:45 amPHL-SYD
34h 30m2 stops
$1,087Air New Zealand
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
12:10 pm - 12:57 amSYD-PHL
26h 47m2 stops
Logo
5:15 am - 7:05 amPHL-SYD
35h 50m2 stops
$1,157
Find Deal
Sun, Sep 14 - Sun, Sep 21
Air Canada Logo
9:20 am - 3:49 pmSYD-PHL
44h 29m2 stops
Air Canada Logo
9:20 am - 7:20 amPHL-SYD
56h 00m2 stops
$1,204Air Canada
Find Deal
Mon, Sep 15 - Sat, Sep 20
Air Canada Logo
9:20 am - 9:38 pmSYD-PHL
50h 18m3 stops
Air Canada Logo
9:20 am - 7:20 amPHL-SYD
32h 00m2 stops
$1,233Air Canada
Find Deal
Sun, Sep 14 - Sun, Sep 21
Air Canada Logo
9:20 am - 9:38 pmSYD-PHL
50h 18m3 stops
Air Canada Logo
9:20 am - 7:20 amPHL-SYD
32h 00m2 stops
$1,234Air Canada
Find Deal
Sun, Sep 14 - Sun, Sep 21
Air Canada Logo
9:20 am - 11:29 pmSYD-PHL
28h 09m2 stops
Air Canada Logo
9:20 am - 7:20 amPHL-SYD
32h 00m3 stops
$1,268Air Canada
Find Deal
Mon, Sep 15 - Sat, Sep 20
Logo
5:45 pm - 5:55 amSYD-PHL
26h 10m1 stop
Logo
5:37 pm - 8:00 amPHL-SYD
48h 23m2 stops
$1,305
Find Deal
Mon, Sep 15 - Sun, Sep 21
Alaska Airlines Logo
9:40 pm - 6:11 pmSYD-PHL
34h 31m2 stops
Alaska Airlines Logo
7:11 pm - 7:45 pmPHL-SYD
33h 34m2 stops
$1,694Alaska Airlines
Find Deal
Fri, Oct 3 - Fri, Oct 10
Qantas Airways Logo
9:10 am - 5:42 pmSYD-PHL
22h 32m1 stop
Qantas Airways Logo
3:45 pm - 8:05 amPHL-SYD
25h 20m1 stop
$2,017Qantas Airways
Find Deal
Fri, Oct 3 - Fri, Oct 10

Air New Zealand flights from Sydney to Philadelphia

Our best Air New Zealand deals on Sydney to Philadelphia flight tickets
Air New Zealand
Sep 14
SYD11:50 amSydney Kingsford Smith
31h 36m
2 stops
PHL5:26 amPhiladelphia
Sep 21
PHL8:15 amPhiladelphia
34h 30m
2 stops
SYD8:45 amSydney Kingsford Smith
$1,086
Find similar
Air New Zealand
Sep 14
SYD11:50 amSydney Kingsford Smith
31h 36m
2 stops
PHL5:26 amPhiladelphia
Sep 21
PHL8:15 amPhiladelphia
34h 30m
2 stops
SYD8:45 amSydney Kingsford Smith
$1,087
Find similar

Air Canada flights from Sydney to Philadelphia

Our best Air Canada deals on Sydney to Philadelphia flight tickets
Air Canada
Sep 15
SYD9:20 amSydney Kingsford Smith
44h 29m
2 stops
PHL3:49 pmPhiladelphia
Sep 20
PHL9:20 amPhiladelphia
56h 00m
2 stops
SYD7:20 amSydney Kingsford Smith
$1,204
Find similar
Air Canada
Sep 14
SYD9:20 amSydney Kingsford Smith
50h 18m
3 stops
PHL9:38 pmPhiladelphia
Sep 21
PHL9:20 amPhiladelphia
32h 00m
2 stops
SYD7:20 amSydney Kingsford Smith
$1,233
Find similar
Air Canada
Sep 14
SYD9:20 amSydney Kingsford Smith
50h 18m
3 stops
PHL9:38 pmPhiladelphia
Sep 21
PHL9:20 amPhiladelphia
32h 00m
2 stops
SYD7:20 amSydney Kingsford Smith
$1,234
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sydney to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Sydney to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

11:50 am-5:26 am

2 stops31h 36m

Philadelphia

Sun 9/21

8:15 am-8:45 am

2 stops34h 30m

$1,086

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

11:50 am-5:26 am

2 stops31h 36m

Philadelphia

Sun 9/21

8:15 am-8:45 am

2 stops34h 30m

$1,087

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

12:10 pm-12:57 am

2 stops26h 47m

Philadelphia

Sun 9/21

5:15 am-7:05 am

2 stops35h 50m

$1,157

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 9/15

9:20 am-3:49 pm

2 stops44h 29m

Philadelphia

Sat 9/20

9:20 am-7:20 am

2 stops56h 00m

$1,204

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

9:20 am-9:38 pm

3 stops50h 18m

Philadelphia

Sun 9/21

9:20 am-7:20 am

2 stops32h 00m

$1,233

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 9/14

9:20 am-9:38 pm

3 stops50h 18m

Philadelphia

Sun 9/21

9:20 am-7:20 am

2 stops32h 00m

$1,234

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 9/15

9:20 am-11:29 pm

2 stops28h 09m

Philadelphia

Sat 9/20

9:20 am-7:20 am

3 stops32h 00m

$1,268

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 9/15

5:45 pm-5:55 am

1 stop26h 10m

Philadelphia

Sun 9/21

5:37 pm-8:00 am

2 stops48h 23m

$1,305

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 10/3

9:40 pm-6:11 pm

2 stops34h 31m

Philadelphia

Fri 10/10

7:11 pm-7:45 pm

2 stops33h 34m

$1,694

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 10/3

9:10 am-5:42 pm

1 stop22h 32m

Philadelphia

Fri 10/10

3:45 pm-8:05 am

1 stop25h 20m

$2,017

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

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

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 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 $794.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Sydney to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $1,303. On the other hand, Saturday is the most expensive day to depart from Sydney because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $2,072.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the afternoon. momondo users have found flights departing from Sydney to Philadelphia in the afternoon for as low as $1,705. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $1,727.

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 $1,394 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 $850 on momondo.

Can stopping save me money on Sydney to Philadelphia flights?

You could potentially save up to 39% on your flight if you consider stops on a Sydney to Philadelphia flight.

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

Direct flights

None
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 21h 07m.

  • 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 many operators does momondo search for flights from Sydney Kingsford Smith Airport to Philadelphia Airport?

  • 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.

  • What is the most popular airline from Sydney to Philadelphia?

Best airlines flying from Sydney to Philadelphia

Compare and see reviews for airlines that fly from Sydney to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $1,123Free CancellationRating
7.5
896 reviews
Search Qantas Airways flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Reading
Dewey Beach
Newark
North Wildwood
Cherry Hill
Lewes
Dover
Avalon
Stone Harbor
Vineland
Exton
Essington
Pottstown
New Castle

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.

An easier way to manage your Philadelphia trip

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