Which layover airport has the shortest travel time from Philadelphia to Sydney?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 22h 38m.

Which layover airport offers the lowest fares from Philadelphia to Sydney?

Flights via Dallas (DFW) offer the lowest average round-trip price of $1,055.

Which layover airport has the shortest connection time from Philadelphia to Sydney?

San Francisco (SFO) has the shortest average layover time for this route: 1h 39m.

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

Delta is the most popular carrier operating from Philadelphia to Sydney Kingsford Smith

What airlines fly to Sydney?

Qantas Airways, United Airlines and Air Canada are the top three most popular airlines that fly to Sydney from Philadelphia according to our data. Qantas Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 10 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Philadelphia and Sydney?

Los Angeles (LAX) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

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?

As of May 2026, there are 6 operators available to choose from 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.

$541 Cheap Flights from Philadelphia to Sydney in 2026

Q: 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 $1,581 to $1,376. The lowest price recently found on this route was $1,015.

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1:31 pm - 7:00 am

PHL

SYD

27h 29m

2 stops

10:20 am - 5:31 am

SYD

PHL

33h 11m

2 stops

$1,015United Airlines

Tue, Jun 30 - Mon, Jul 27

2:31 pm - 6:50 am

PHL

SYD

26h 19m

2 stops

9:15 am - 7:51 pm

SYD

PHL

24h 36m

2 stops

$1,016Delta

Wed, Aug 5 - Wed, Aug 19

4:14 pm - 7:00 am

PHL

SYD

48h 46m

2 stops

9:30 am - 12:59 am

SYD

PHL

29h 29m

2 stops

$1,029United Airlines

Sat, May 30 - Sun, Jun 14

3:38 pm - 6:50 am

PHL

SYD

49h 12m

2 stops

9:15 am - 6:04 pm

SYD

PHL

22h 49m

2 stops

$1,030Delta

Sat, Jun 27 - Tue, Jul 28

12:39 pm - 6:50 am

PHL

SYD

28h 11m

2 stops

9:15 am - 8:41 am

SYD

PHL

37h 26m

2 stops

$1,065Delta

Tue, Jun 30 - Sat, Jul 25

11:38 am - 7:00 am

PHL

SYD

29h 22m

2 stops

10:20 am - 7:50 am

SYD

PHL

35h 30m

1 stop

$1,075United Airlines

Tue, Jun 30 - Sat, Jul 25

5:22 pm - 6:50 am

PHL

SYD

47h 28m

2 stops

9:15 am - 8:41 am

SYD

PHL

37h 26m

2 stops

$1,079Delta

Sun, Jun 28 - Sat, Jul 25

3:38 pm - 6:50 am

PHL

SYD

49h 12m

2 stops

9:15 am - 11:56 pm

SYD

PHL

28h 41m

2 stops

$1,080Delta

Sat, Jun 27 - Thu, Jul 30

6:10 am - 6:50 am

PHL

SYD

34h 40m

2 stops

9:15 am - 8:41 am

SYD

PHL

37h 26m

2 stops

$1,115Delta

Fri, Jun 26 - Sat, Jul 25

8:08 pm - 6:50 am

PHL

SYD

44h 42m

2 stops

9:15 am - 8:41 am

SYD

PHL

37h 26m

2 stops

$1,130Delta

Thu, Jun 25 - Sat, Jul 25

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets

Qantas Airways

Nov 8

PHL1:00 pmPhiladelphia

25h 55m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 18

SYD6:25 amSydney Kingsford Smith

28h 40m

2 stops

PHL7:05 pmPhiladelphia

$1,306

Qantas Airways

Nov 8

PHL8:45 amPhiladelphia

29h 25m

1 stop

SYD6:10 amSydney Kingsford Smith

Nov 18

SYD6:00 amSydney Kingsford Smith

30h 10m

2 stops

PHL8:10 pmPhiladelphia

$1,314

Qantas Airways

Nov 8

PHL10:46 amPhiladelphia

28h 09m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 18

SYD6:25 amSydney Kingsford Smith

28h 40m

2 stops

PHL7:05 pmPhiladelphia

$1,315

Air Canada flights from Philadelphia to Sydney

Our best Air Canada deals on Philadelphia to Sydney flight tickets

Air Canada

May 24

PHL10:05 amPhiladelphia

31h 15m

2 stops

SYD7:20 amSydney Kingsford Smith

Jun 8

SYD9:20 amSydney Kingsford Smith

43h 28m

2 stops

PHL2:48 pmPhiladelphia

$1,294

Air Canada

May 24

PHL10:05 amPhiladelphia

31h 15m

3 stops

SYD7:20 amSydney Kingsford Smith

Jun 8

SYD9:20 amSydney Kingsford Smith

43h 28m

2 stops

PHL2:48 pmPhiladelphia

$1,302

Air Canada

Nov 8

PHL3:30 pmPhiladelphia

26h 05m

2 stops

SYD9:35 amSydney Kingsford Smith

Nov 18

SYD11:20 amSydney Kingsford Smith

43h 27m

2 stops

PHL2:47 pmPhiladelphia

$1,304

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 6/30

1:31 pm-7:00 am

2 stops27h 29m

Sydney Kingsford Smith

Mon 7/27

10:20 am-5:31 am

2 stops33h 11m

$1,015

Quickest round-trip

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Wed 8/5

2:31 pm-6:50 am

2 stops26h 19m

Sydney Kingsford Smith

Wed 8/19

9:15 am-7:51 pm

2 stops24h 36m

$1,016

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 5/30

4:14 pm-7:00 am

2 stops48h 46m

Sydney Kingsford Smith

Sun 6/14

9:30 am-12:59 am

2 stops29h 29m

$1,029

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 6/27

3:38 pm-6:50 am

2 stops49h 12m

Sydney Kingsford Smith

Tue 7/28

9:15 am-6:04 pm

2 stops22h 49m

$1,030

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 6/30

12:39 pm-6:50 am

2 stops28h 11m

Sydney Kingsford Smith

Sat 7/25

9:15 am-8:41 am

2 stops37h 26m

$1,065

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 6/30

11:38 am-7:00 am

2 stops29h 22m

Sydney Kingsford Smith

Sat 7/25

10:20 am-7:50 am

1 stop35h 30m

$1,075

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 6/28

5:22 pm-6:50 am

2 stops47h 28m

Sydney Kingsford Smith

Sat 7/25

9:15 am-8:41 am

2 stops37h 26m

$1,079

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 6/27

3:38 pm-6:50 am

2 stops49h 12m

Sydney Kingsford Smith

Thu 7/30

9:15 am-11:56 pm

2 stops28h 41m

$1,080

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Fri 6/26

6:10 am-6:50 am

2 stops34h 40m

Sydney Kingsford Smith

Sat 7/25

9:15 am-8:41 am

2 stops37h 26m

$1,115

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 6/25

8:08 pm-6:50 am

2 stops44h 42m

Sydney Kingsford Smith

Sat 7/25

9:15 am-8:41 am

2 stops37h 26m

$1,130

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 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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Philadelphia and Sydney?

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 $1,059. 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 $1,122.

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 $1,475 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 $1,088 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 40% 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	23h 17m
Direct flights	None

The fastest flight from Philadelphia to Sydney takes 23h 17m

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

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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 23h 17m, 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?
As of May 2026, there are 6 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Sydney is Qantas Airways, representing 36% of all bookings. The subsequent popular airlines are American Airlines at 25%, United Airlines at 13%, and Fiji Airways at 12%.

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 Airlines	PriceFrom $843	Free Cancellation	Rating 7.4 9,700 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,044	Free Cancellation	Rating 7.5 1,034 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,066	Free Cancellation	Rating 7.1 11,017 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,198	Free Cancellation	Rating 7.1 11,665 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $1,256	Free Cancellation	Rating 8.1 240 reviews	Search Fiji Airways flights
Air New Zealand	PriceFrom $1,418	Free Cancellation	Rating 8.0 642 reviews	Search Air New Zealand flights

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Penrith

Leura

Randwick

Lithgow

Manly

Coogee

Cronulla

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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

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Cheap flights from Philadelphia to Sydney from $541

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 6/10. 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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Qantas Airways flights from Philadelphia to Sydney

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How to get the cheapest flight ticket from Philadelphia to Sydney

What is the typical price of a round-trip flight between Philadelphia and Sydney?

What is the cheapest month to fly to Sydney?

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

Can stopping save me money on Philadelphia to Sydney flights?

How have Philadelphia to Sydney flight prices changed over time?

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

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Philadelphia and Sydney?

Which layover airport offers the lowest fares from Philadelphia to Sydney?

Which layover airport has the shortest travel time from Philadelphia to Sydney?

Which layover airport has the shortest connection time from Philadelphia to Sydney?

When to book flights from Philadelphia to Sydney

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

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Sydney?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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