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Cheap flights from Philadelphia to Sydney from $601

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 9/16. 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
0 bags

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Cheap round-trip flights

United Airlines Logo
6:30 am - 7:00 amPHL-SYD
34h 30m3 stops
United Airlines Logo
10:20 am - 5:28 pmSYD-PHL
21h 08m1 stop
$896United Airlines
Find Deal
Wed, Aug 20 - Tue, Aug 26
United Airlines Logo
8:15 am - 6:55 amPHL-SYD
32h 40m2 stops
United Airlines Logo
11:50 am - 10:46 pmSYD-PHL
25h 56m1 stop
$897United Airlines
Find Deal
Wed, Sep 17 - Wed, Oct 29
ANA Logo
12:40 pm - 8:15 pmPHL-SYD
39h 35m2 stops
ANA Logo
9:45 pm - 5:24 pmSYD-PHL
35h 39m2 stops
$1,216ANA
Find Deal
Tue, Nov 25 - Sat, Dec 6
ANA Logo
10:10 am - 9:25 amPHL-SYD
33h 15m2 stops
ANA Logo
11:50 am - 2:17 pmSYD-PHL
40h 27m2 stops
$1,225ANA
Find Deal
Mon, Aug 25 - Mon, Sep 8
Qantas Airways Logo
11:00 am - 2:25 pmPHL-SYD
35h 25m2 stops
Qantas Airways Logo
7:05 am - 5:44 pmSYD-PHL
26h 39m2 stops
$1,275Qantas Airways
Find Deal
Wed, Dec 3 - Wed, Jan 14
Fiji Airways Logo
3:40 pm - 3:40 pmPHL-SYD
34h 00m2 stops
Fiji Airways Logo
2:15 pm - 12:59 amSYD-PHL
25h 44m2 stops
$1,347Fiji Airways
Find Deal
Wed, Sep 24 - Wed, Oct 8
Fiji Airways Logo
3:40 pm - 10:10 pmPHL-SYD
40h 30m2 stops
Fiji Airways Logo
2:15 pm - 12:59 amSYD-PHL
25h 44m2 stops
$1,356Fiji Airways
Find Deal
Tue, Sep 16 - Fri, Oct 31
Air Canada Logo
9:20 am - 7:20 amPHL-SYD
32h 00m2 stops
Air Canada Logo
10:20 am - 2:38 pmSYD-PHL
43h 18m3 stops
$1,381Air Canada
Find Deal
Wed, Sep 24 - Wed, Oct 8
Air Canada Logo
3:20 pm - 7:20 amPHL-SYD
50h 00m3 stops
Air Canada Logo
9:20 am - 2:38 pmSYD-PHL
43h 18m3 stops
$1,387Air Canada
Find Deal
Mon, Aug 25 - Mon, Sep 8
Qantas Airways Logo
10:45 am - 2:25 pmPHL-SYD
35h 40m2 stops
Qantas Airways Logo
9:00 am - 11:49 pmSYD-PHL
30h 49m2 stops
$1,389Qantas Airways
Find Deal
Wed, Nov 26 - Mon, Dec 15

ANA flights from Philadelphia to Sydney

Our best ANA deals on Philadelphia to Sydney flight tickets
ANA
Nov 25
PHL12:40 pmPhiladelphia
39h 35m
2 stops
SYD8:15 pmSydney Kingsford Smith
Dec 6
SYD9:45 pmSydney Kingsford Smith
35h 39m
2 stops
PHL5:24 pmPhiladelphia
ANA
Aug 25
PHL10:10 amPhiladelphia
33h 15m
2 stops
SYD9:25 amSydney Kingsford Smith
Sep 8
SYD11:50 amSydney Kingsford Smith
40h 27m
2 stops
PHL2:17 pmPhiladelphia
ANA
Nov 2
PHL5:00 amPhiladelphia
46h 15m
2 stops
SYD7:15 pmSydney Kingsford Smith
Nov 8
SYD9:45 pmSydney Kingsford Smith
32h 22m
2 stops
PHL2:07 pmPhiladelphia

Qantas Airways flights from Philadelphia to Sydney

Our best Qantas Airways deals on Philadelphia to Sydney flight tickets
Qantas Airways
Dec 3
PHL11:00 amPhiladelphia
35h 25m
2 stops
SYD2:25 pmSydney Kingsford Smith
Jan 14
SYD7:05 amSydney Kingsford Smith
26h 39m
2 stops
PHL5:44 pmPhiladelphia
Qantas Airways
Nov 26
PHL10:45 amPhiladelphia
35h 40m
2 stops
SYD2:25 pmSydney Kingsford Smith
Dec 15
SYD9:00 amSydney Kingsford Smith
30h 49m
2 stops
PHL11:49 pmPhiladelphia
Qantas Airways
Dec 3
PHL12:50 pmPhiladelphia
33h 35m
2 stops
SYD2:25 pmSydney Kingsford Smith
Jan 7
SYD7:15 pmSydney Kingsford Smith
44h 37m
2 stops
PHL11:52 pmPhiladelphia

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 cheapest month to fly to Sydney?

In general, September 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 $1,147. If you are unable to visit Sydney during the month of September, then departing from Philadelphia during the month February is also very affordable. Most momondo users find prices during this month for around $1,157.

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

The cheapest day to depart from Philadelphia to Sydney is on a Sunday when prices can be found for as low as $1,373. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,659.

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

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Philadelphia to Sydney in the morning for as low as $1,449. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $2,063. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,475 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 $1,068 on momondo.

Can stopping save me money on Philadelphia to Sydney flights?

You could potentially save up to 30% on your flight if you consider stops on a Philadelphia to Sydney flight.

How have Philadelphia to Sydney flight prices changed over time?

As of July 2025, prices for Philadelphia to Sydney flights are approximately 17% cheaper when compared to flights at the same time last year.

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

Best Price Found

$601

Fastest flight time

22h 22m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Philadelphia in the past 72 hours is $601. The best round-trip flight deal from Philadelphia to Sydney found on momondo in the last 72 hours is $896.
The fastest flight from Philadelphia to Sydney takes 22h 22m
There are no direct flights from Philadelphia to Sydney. Popular non-direct route for this connection is Philadelphia Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

  • 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 22h 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?

  • 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
DeltaPriceFrom $834Free CancellationRating
8.0
7,962 reviews
Search Delta flights
United AirlinesPriceFrom $860Free CancellationRating
7.4
8,844 reviews
Search United Airlines flights
Air CanadaPriceFrom $945Free CancellationRating
7.1
9,680 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,220Free CancellationRating
8.0
494 reviews
Search Air New Zealand flights
American AirlinesPriceFrom $1,288Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,294Free CancellationRating
7.5
873 reviews
Search Qantas Airways flights
Fiji AirwaysPriceFrom $1,390Free CancellationRating
8.0
201 reviews
Search Fiji Airways flights

Traveling to a place near Sydney?

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

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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1 adult
Sun 7/13
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