Cheap flights from Philadelphia to Sydney from $700
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 11/10. 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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Route
Depart
Return
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Wed 2/17
8:45 pm-6:20 pm
1 stop29h 35m
Sydney Kingsford Smith
Wed 2/24
10:10 pm-2:50 pm
1 stop32h 40m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Wed 11/25
3:20 pm-9:35 am
2 stops26h 15m
Sydney Kingsford Smith
Wed 12/2
11:20 am-10:56 pm
2 stops27h 36m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Thu 11/26
8:45 pm-6:50 am
1 stop42h 05m
Sydney Kingsford Smith
Fri 12/11
9:10 pm-2:50 pm
1 stop33h 40m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Mon 1/25
8:00 am-10:35 am
2 stops34h 35m
Sydney Kingsford Smith
Mon 2/8
11:50 am-10:59 pm
2 stops27h 09m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Wed 11/25
3:20 pm-9:35 am
2 stops26h 15m
Sydney Kingsford Smith
Wed 12/2
11:20 am-2:39 pm
3 stops43h 19m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Mon 2/1
8:00 am-12:50 pm
2 stops36h 50m
Sydney Kingsford Smith
Mon 2/15
9:55 am-12:08 pm
2 stops42h 13m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Sun 12/13
4:06 pm-6:55 am
1 stop22h 49m
Sydney Kingsford Smith
Wed 1/20
10:25 am-8:36 pm
2 stops26h 11m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Sun 12/13
2:46 pm-6:55 am
1 stop24h 09m
Sydney Kingsford Smith
Wed 1/20
11:05 am-8:36 pm
2 stops25h 31m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Sun 11/29
6:39 pm-9:00 am
1 stop22h 21m
Sydney Kingsford Smith
Mon 12/7
11:10 am-11:53 pm
1 stop28h 43m
PhiladelphiaSydney
PHL Philadelphia - SYD Sydney Kingsford Smith
PHLSYD
Philadelphia
Sun 11/29
3:05 pm-6:55 am
1 stop23h 50m
Sydney Kingsford Smith
Mon 12/7
2:05 pm-8:52 pm
2 stops22h 47m
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 $1,476 to $1,917.The lowest price recently found on this route was $1,229.
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 $1,046. 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 $1,429 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 $1,148 on momondo.
What is the cheapest airline that flies from Philadelphia to Sydney Kingsford Smith?
Qantas Airways, ANA, and Air New Zealand are the most popular carriers 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 47% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 8 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: 80% of momondo users choosing 1-stop flights on this route connected there.
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.
Which layover airport has the shortest connection time from Philadelphia to Sydney?
Dallas (DFW) has the shortest average layover time for this route: 1h 59m.
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
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 22h 49m, 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 October 2026, there are 5 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 53% of all bookings. The subsequent popular airlines are American Airlines at 22%, United Airlines at 17%, and Air Canada at 5%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $843 | Free Cancellation | Rating 7.4 10,352 reviews | |||
| PriceFrom $1,046 | Free Cancellation | Rating 7.5 1,109 reviews | |||
| PriceFrom $1,159 | Free Cancellation | Rating 7.0 12,158 reviews | |||
| PriceFrom $1,181 | Free Cancellation | Rating 7.1 11,764 reviews | |||
| PriceFrom $1,352 | Free Cancellation | Rating 8.0 671 reviews |
Traveling to a place near Sydney?
Book flights to Sydney if you plan to visit one of these locationsWhy 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.