Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Philadelphia to Sydney from $605

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Sydney departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:05 am - 8:20 amPHL  Philadelphia-SYD Sydney Kingsford Smith
31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 am - 2:44 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
43h 24m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,215Air Canada
พ., ต.ค. 21 - พ., พ.ย. 4
Air Canada Logo
3:20 pm - 9:35 amPHL  Philadelphia-SYD Sydney Kingsford Smith
26h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
11:20 am - 2:44 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
43h 24m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,215Air Canada
อา., พ.ย. 8 - พ., พ.ย. 18
Multiple Airlines Logo
1:06 pm - 7:20 amPHL  Philadelphia-SYD Sydney Kingsford Smith
28h 14m2 stops Houston George Bush Intcntl Vancouver Intl
Multiple Airlines Logo
9:20 am - 2:47 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
43h 27m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,226Multiple Airlines
จ., ส.ค. 31 - อ., ก.ย. 8
Multiple Airlines Logo
8:30 pm - 6:50 amPHL  Philadelphia-SYD Sydney Kingsford Smith
42h 20m1 stop Doha Hamad Intl
Multiple Airlines Logo
3:50 pm - 2:40 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
38h 50m1 stop Doha Hamad Intl
$1,237Multiple Airlines
อา., พ.ย. 8 - พ., พ.ย. 18
Qantas Airways Logo
4:24 pm - 10:20 amPHL  Philadelphia-SYD Sydney Kingsford Smith
25h 56m2 stops Los Angeles Brisbane
Qantas Airways Logo
2:05 pm - 8:35 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
22h 30m1 stop Dallas/Fort Worth
$1,267Qantas Airways
จ., ก.พ. 1 - อา., ก.พ. 21
Qantas Airways Logo
4:21 pm - 6:55 amPHL  Philadelphia-SYD Sydney Kingsford Smith
22h 34m1 stop Dallas/Fort Worth
Qantas Airways Logo
11:05 am - 8:32 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
25h 27m2 stops Brisbane Los Angeles
$1,277Qantas Airways
อา., พ.ย. 8 - พ., พ.ย. 18
Air New Zealand Logo
8:00 am - 8:20 amPHL  Philadelphia-SYD Sydney Kingsford Smith
33h 20m1 stop Vancouver Intl
Air New Zealand Logo
11:20 am - 4:21 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
45h 01m1 stop Toronto Pearson Intl
$1,277Air New Zealand
พ., ต.ค. 21 - พ., พ.ย. 4
Air New Zealand Logo
10:05 am - 7:20 amPHL  Philadelphia-SYD Sydney Kingsford Smith
31h 15m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air New Zealand Logo
10:20 am - 3:41 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
44h 21m1 stop Toronto Pearson Intl
$1,279Air New Zealand
อ., ก.ย. 22 - อ., ต.ค. 6
American Airlines Logo
5:30 pm - 7:30 amPHL  Philadelphia-SYD Sydney Kingsford Smith
24h 00m1 stop Los Angeles
American Airlines Logo
9:10 am - 6:55 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
23h 45m2 stops Los Angeles Dallas/Fort Worth
$1,445American Airlines
จ., ก.ย. 14 - อา., ก.ย. 27
American Airlines Logo
5:30 pm - 7:30 amPHL  Philadelphia-SYD Sydney Kingsford Smith
24h 00m1 stop Los Angeles
American Airlines Logo
9:10 am - 8:39 pmSYD  Sydney Kingsford Smith-PHL Philadelphia
25h 29m1 stop Los Angeles
$1,445American Airlines
จ., ก.ย. 14 - อา., ก.ย. 27

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air Canada flights from Philadelphia to Sydney

Our best Air Canada deals on Philadelphia to Sydney flight tickets
Air Canada
Nov 8
PHL3:20 pmPhiladelphia
26h 15m
2 stops
SYD9:35 amSydney Kingsford Smith
Nov 18
SYD11:20 amSydney Kingsford Smith
43h 24m
2 stops
PHL2:44 pmPhiladelphia
$1,215
Air Canada
Sep 29
PHL7:00 amPhiladelphia
34h 20m
2 stops
SYD7:20 amSydney Kingsford Smith
Oct 19
SYD10:20 amSydney Kingsford Smith
43h 27m
2 stops
PHL2:47 pmPhiladelphia
$1,220
Air Canada
Nov 8
PHL3:20 pmPhiladelphia
26h 15m
2 stops
SYD9:35 amSydney Kingsford Smith
Nov 22
SYD11:20 amSydney Kingsford Smith
43h 24m
3 stops
PHL2:44 pmPhiladelphia
$1,223

Qatar Airways flights from Philadelphia to Sydney

Our best Qatar Airways deals on Philadelphia to Sydney flight tickets
Qatar Airways
Nov 26
PHL8:30 pmPhiladelphia
42h 20m
1 stop
SYD6:50 amSydney Kingsford Smith
Dec 10
SYD9:10 pmSydney Kingsford Smith
33h 50m
1 stop
PHL3:00 pmPhiladelphia
$1,250
Qatar Airways
Sep 1
PHL9:30 pmPhiladelphia
31h 20m
2 stops
SYD6:50 pmSydney Kingsford Smith
Sep 12
SYD2:50 pmSydney Kingsford Smith
37h 40m
1 stop
PHL2:30 pmPhiladelphia
$1,299
Qatar Airways
Aug 31
PHL9:30 pmPhiladelphia
31h 20m
2 stops
SYD6:50 pmSydney Kingsford Smith
Sep 8
SYD2:50 pmSydney Kingsford Smith
37h 40m
1 stop
PHL2:30 pmPhiladelphia
$1,300

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Sydney 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 สิงหาคม 9, 2026.
Use the filters below to find and compare flights from Philadelphia to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

พ. 10/21

10:05 am-8:20 am

2 stops31h 15m

Sydney Kingsford Smith

พ. 11/4

11:20 am-2:44 pm

2 stops43h 24m

$1,215

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

อา. 11/8

3:20 pm-9:35 am

2 stops26h 15m

Sydney Kingsford Smith

พ. 11/18

11:20 am-2:44 pm

2 stops43h 24m

$1,215

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

จ. 8/31

1:06 pm-7:20 am

2 stops28h 14m

Sydney Kingsford Smith

อ. 9/8

9:20 am-2:47 pm

2 stops43h 27m

$1,226

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

อา. 11/8

8:30 pm-6:50 am

1 stop42h 20m

Sydney Kingsford Smith

พ. 11/18

3:50 pm-2:40 pm

1 stop38h 50m

$1,237

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

จ. 2/1

4:24 pm-10:20 am

2 stops25h 56m

Sydney Kingsford Smith

อา. 2/21

2:05 pm-8:35 pm

1 stop22h 30m

$1,267

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

อา. 11/8

4:21 pm-6:55 am

1 stop22h 34m

Sydney Kingsford Smith

พ. 11/18

11:05 am-8:32 pm

2 stops25h 27m

$1,277

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

พ. 10/21

8:00 am-8:20 am

1 stop33h 20m

Sydney Kingsford Smith

พ. 11/4

11:20 am-4:21 pm

1 stop45h 01m

$1,277

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

อ. 9/22

10:05 am-7:20 am

2 stops31h 15m

Sydney Kingsford Smith

อ. 10/6

10:20 am-3:41 pm

1 stop44h 21m

$1,279
Quickest round-trip

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

จ. 9/14

5:30 pm-7:30 am

1 stop24h 00m

Sydney Kingsford Smith

อา. 9/27

9:10 am-6:55 pm

2 stops23h 45m

$1,445

PhiladelphiaSydney

PHL Philadelphia - SYD Sydney Kingsford Smith

PHLSYD

Philadelphia

จ. 9/14

5:30 pm-7:30 am

1 stop24h 00m

Sydney Kingsford Smith

อา. 9/27

9:10 am-8:39 pm

1 stop25h 29m

$1,445

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

How to get the cheapest flight ticket from Philadelphia to Sydney

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 Philadelphia and Sydney?

Prices are currently low for flights on this route.

Typical prices usually range from $1,486 to $1,589.
The lowest price recently found on this route was $1,215.

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from Philadelphia to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,049. If you are unable to visit Sydney during the month of February, then departing from Philadelphia during the month March is also very affordable. Most momondo users find prices during this month for around $1,106.

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

You are more likely to see cheaper flights to Sydney from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Philadelphia for as low as $999 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 6% on your flight if you consider stops on a Philadelphia to Sydney flight.

How have Philadelphia to Sydney flight prices changed over time?

When to book flights from Philadelphia to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Sydney (PHL to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Sydney

Fastest flight time

26h 15m

Direct flights

None
The fastest flight from Philadelphia to Sydney takes 26h 15m
There are no direct flights from Philadelphia to Sydney. There are no popular flight routes from Philadelphia to Sydney.
Search flight deals

Frequently asked questions about flying from Philadelphia to Sydney

  • How far is Philadelphia to Sydney Kingsford Smith by plane?

    Philadelphia and Sydney Kingsford Smith are 9863.8 mi apart from one another. Flights usually cover this in 26h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Philadelphia Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Philadelphia Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Philadelphia Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Philadelphia to Sydney

Compare and see reviews for airlines that fly from Philadelphia to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $843Free CancellationRating
7.4
10,089 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,045Free CancellationRating
7.5
1,079 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $1,066Free CancellationRating
7.1
11,455 reviews
Search Air Canada flights
American AirlinesPriceFrom $1,159Free CancellationRating
7.1
11,892 reviews
Search American Airlines flights
Fiji AirwaysPriceFrom $1,244Free CancellationRating
8.0
252 reviews
Search Fiji Airways flights
Air New ZealandPriceFrom $1,418Free CancellationRating
8.0
659 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Wollongong
Penrith
Katoomba
Leura
Cronulla
Randwick
Manly
Lithgow
Coogee
Terrigal
Charlestown
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Sydney?

Finding the right flight to Sydney from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

Can I find flights from Philadelphia to Sydney with flexible booking policies on momondo?

Yes. All flights to Sydney from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to Sydney?

Once you have performed a search for Philadelphia to Sydney 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 Philadelphia to Sydney right now. Can momondo alert me if prices change?

Price alerts on flights to Sydney from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
อ. 9/8
อ. 9/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia