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 42% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 11 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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 travel time from Philadelphia to Sydney?

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

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

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

Los Angeles (LAX) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

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.

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 March 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.

$503 Cheap Flights from Philadelphia to Sydney in 2026

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One-way

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1:20 pm - 6:50 am

PHL

SYD

27h 30m

2 stops

9:15 am - 10:50 pm

SYD

PHL

27h 35m

2 stops

$1,006Delta

Tue, Apr 28 - Mon, May 4

1:20 pm - 6:50 am

PHL

SYD

27h 30m

2 stops

9:15 am - 8:53 pm

SYD

PHL

25h 38m

2 stops

$1,046Delta

Mon, Apr 13 - Tue, Apr 21

6:35 am - 6:50 am

PHL

SYD

34h 15m

2 stops

9:15 am - 6:39 pm

SYD

PHL

23h 24m

2 stops

$1,056Delta

Sun, May 10 - Sat, May 16

2:18 pm - 12:20 pm

PHL

SYD

31h 02m

2 stops

1:05 pm - 9:44 pm

SYD

PHL

23h 39m

1 stop

$1,089Qantas Airways

Tue, Mar 17 - Tue, Mar 24

6:00 am - 6:50 am

PHL

SYD

34h 50m

2 stops

9:15 am - 12:59 am

SYD

PHL

29h 44m

2 stops

$1,096Delta

Thu, Apr 16 - Wed, Apr 29

8:05 am - 6:50 am

PHL

SYD

32h 45m

2 stops

9:15 am - 10:12 pm

SYD

PHL

26h 57m

2 stops

$1,106Delta

Sat, May 16 - Thu, Jun 4

3:54 pm - 11:35 am

PHL

SYD

28h 41m

2 stops

9:25 pm - 7:08 am

SYD

PHL

23h 43m

1 stop

$1,162Qantas Airways

Sun, Mar 22 - Tue, Apr 7

2:18 pm - 1:00 pm

PHL

SYD

31h 42m

2 stops

9:25 pm - 7:08 am

SYD

PHL

23h 43m

1 stop

$1,199Qantas Airways

Tue, Mar 24 - Fri, Apr 10

3:54 pm - 12:15 pm

PHL

SYD

29h 21m

2 stops

9:25 pm - 7:08 am

SYD

PHL

23h 43m

1 stop

$1,201Qantas Airways

Sun, Mar 22 - Tue, Apr 7

2:18 pm - 9:20 am

PHL

SYD

29h 02m

2 stops

12:00 pm - 6:48 pm

SYD

PHL

20h 48m

1 stop

$1,231Qantas Airways

Mon, Apr 6 - Tue, May 12

Delta flights from Philadelphia to Sydney

Our best Delta deals on Philadelphia to Sydney flight tickets

Delta

Apr 28

PHL1:20 pmPhiladelphia

27h 30m

2 stops

SYD6:50 amSydney Kingsford Smith

May 4

SYD9:15 amSydney Kingsford Smith

27h 35m

2 stops

PHL10:50 pmPhiladelphia

$1,006

Delta

May 10

PHL6:35 amPhiladelphia

34h 15m

2 stops

SYD6:50 amSydney Kingsford Smith

May 16

SYD9:15 amSydney Kingsford Smith

23h 24m

2 stops

PHL6:39 pmPhiladelphia

$1,056

Air New Zealand flights from Philadelphia to Sydney

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

Air New Zealand

May 2

PHL7:59 pmPhiladelphia

48h 41m

2 stops

SYD10:40 amSydney Kingsford Smith

May 11

SYD9:55 amSydney Kingsford Smith

36h 05m

2 stops

PHL8:00 amPhiladelphia

$1,275

Air New Zealand

Apr 28

PHL6:12 amPhiladelphia

36h 33m

2 stops

SYD8:45 amSydney Kingsford Smith

May 4

SYD7:20 pmSydney Kingsford Smith

50h 40m

2 stops

PHL8:00 amPhiladelphia

$1,346

Air New Zealand

Apr 16

PHL7:59 pmPhiladelphia

46h 46m

2 stops

SYD8:45 amSydney Kingsford Smith

Apr 29

SYD9:55 amSydney Kingsford Smith

39h 53m

2 stops

PHL11:48 amPhiladelphia

$1,381

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 4/28

1:20 pm-6:50 am

2 stops27h 30m

Sydney Kingsford Smith

Mon 5/4

9:15 am-10:50 pm

2 stops27h 35m

$1,006

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 4/13

1:20 pm-6:50 am

2 stops27h 30m

Sydney Kingsford Smith

Tue 4/21

9:15 am-8:53 pm

2 stops25h 38m

$1,046

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 5/10

6:35 am-6:50 am

2 stops34h 15m

Sydney Kingsford Smith

Sat 5/16

9:15 am-6:39 pm

2 stops23h 24m

$1,056

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 3/17

2:18 pm-12:20 pm

2 stops31h 02m

Sydney Kingsford Smith

Tue 3/24

1:05 pm-9:44 pm

1 stop23h 39m

$1,089

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Thu 4/16

6:00 am-6:50 am

2 stops34h 50m

Sydney Kingsford Smith

Wed 4/29

9:15 am-12:59 am

2 stops29h 44m

$1,096

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sat 5/16

8:05 am-6:50 am

2 stops32h 45m

Sydney Kingsford Smith

Thu 6/4

9:15 am-10:12 pm

2 stops26h 57m

$1,106

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/22

3:54 pm-11:35 am

2 stops28h 41m

Sydney Kingsford Smith

Tue 4/7

9:25 pm-7:08 am

1 stop23h 43m

$1,162

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Tue 3/24

2:18 pm-1:00 pm

2 stops31h 42m

Sydney Kingsford Smith

Fri 4/10

9:25 pm-7:08 am

1 stop23h 43m

$1,199

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Sun 3/22

3:54 pm-12:15 pm

2 stops29h 21m

Sydney Kingsford Smith

Tue 4/7

9:25 pm-7:08 am

1 stop23h 43m

$1,201

PhiladelphiaSydney

PHL - SYD

PHLSYD

Philadelphia

Mon 4/6

2:18 pm-9:20 am

2 stops29h 02m

Sydney Kingsford Smith

Tue 5/12

12:00 pm-6:48 pm

1 stop20h 48m

$1,231

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 cheapest month to fly to Sydney?

In general, April 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 $1,045. If you are unable to visit Sydney during the month of April, then departing from Philadelphia during the month February is also very affordable. Most momondo users find prices during this month for around $1,071.

How far in advance should I book a flight 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 $1,451 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 $991 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 7% 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 22m
Direct flights	None

The fastest flight from Philadelphia to Sydney takes 23h 22m

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

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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 22m, 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 March 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 26% of all bookings. The subsequent popular airlines are Fiji Airways at 23%, United Airlines at 16%, and American Airlines at 15%.

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 9,382 reviews	Search United Airlines flights
Air Canada	PriceFrom $941	Free Cancellation	Rating 7.1 10,775 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,044	Free Cancellation	Rating 7.5 1,001 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,159	Free Cancellation	Rating 7.1 11,377 reviews	Search American Airlines flights
Fiji Airways	PriceFrom $1,288	Free Cancellation	Rating 8.0 228 reviews	Search Fiji Airways flights
Air New Zealand	PriceFrom $1,418	Free Cancellation	Rating 8.0 606 reviews	Search Air New Zealand flights

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Manly

Randwick

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Charlestown

Terrigal

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.

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Cheap flights from Philadelphia to Sydney from $503

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 4/15. 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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Delta flights from Philadelphia to Sydney

Our best Delta deals on Philadelphia to Sydney flight tickets

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How to get the cheapest flight ticket from Philadelphia to Sydney

What is the cheapest month to fly to Sydney?

How far in advance should I book a flight 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

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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.

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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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