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Look for other cheap flights to Philadelphia

$941 Cheap flights to Philadelphia

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Philadelphia departing on 19/11. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:15 - 09:05
SYD
-
PHL
33h 50m
3 stops
Multiple Airlines Logo
08:41 - 22:25
PHL
-
SYD
47h 44m
3 stops
$1,261Multiple Airlines
Wed, 9 Sep - Wed, 23 Sep
Air Canada Logo
09:20 - 14:47
SYD
-
PHL
43h 27m
2 stops
Air Canada Logo
07:00 - 07:20
PHL
-
SYD
34h 20m
2 stops
$1,324Air Canada
Wed, 9 Sep - Wed, 23 Sep
United Airlines Logo
10:55 - 21:43
MEL
-
PHL
24h 48m
2 stops
United Airlines Logo
15:05 - 08:15
PHL
-
MEL
27h 10m
2 stops
$1,368United Airlines
Fri, 28 Aug - Fri, 4 Sep
United Airlines Logo
10:55 - 07:49
MEL
-
PHL
34h 54m
1 stop
United Airlines Logo
08:20 - 07:30
PHL
-
MEL
33h 10m
2 stops
$1,368United Airlines
Mon, 31 Aug - Mon, 7 Sep
Qantas Airways Logo
09:10 - 18:42
SYD
-
PHL
23h 32m
1 stop
Qantas Airways Logo
17:30 - 07:05
PHL
-
SYD
23h 35m
1 stop
$1,536Qantas Airways
Wed, 9 Sep - Wed, 23 Sep
Qantas Airways Logo
09:10 - 18:42
SYD
-
PHL
23h 32m
1 stop
Qantas Airways Logo
17:30 - 07:05
PHL
-
SYD
23h 35m
1 stop
$1,555Qantas Airways
Wed, 9 Sep - Wed, 23 Sep
American Airlines Logo
09:10 - 08:08
SYD
-
PHL
36h 58m
1 stop
American Airlines Logo
21:55 - 07:05
PHL
-
SYD
43h 10m
1 stop
$1,575American Airlines
Thu, 13 Aug - Mon, 17 Aug
American Airlines Logo
09:10 - 18:55
SYD
-
PHL
23h 45m
2 stops
American Airlines Logo
17:30 - 07:05
PHL
-
SYD
23h 35m
1 stop
$1,575American Airlines
Wed, 9 Sep - Wed, 23 Sep
Qatar Airways Logo
22:00 - 14:30
ADL
-
PHL
30h 00m
1 stop
Qatar Airways Logo
21:30 - 15:00
PHL
-
ADL
28h 00m
1 stop
$2,542Qatar Airways
Tue, 1 Sep - Mon, 7 Sep
Qatar Airways Logo
18:20 - 14:30
ADL
-
PHL
33h 40m
2 stops
Qatar Airways Logo
21:30 - 15:00
PHL
-
ADL
28h 00m
1 stop
$2,824Qatar Airways
Tue, 1 Sep - Mon, 7 Sep

momondo Fare Finder

 
Locate flights to Philadelphia that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 4 August 2026.
Use the filters below to find and compare flights to Philadelphia that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

13:15-09:05

3 stops33h 50m

Philadelphia

Wed 23/9

08:41-22:25

3 stops47h 44m

$1,261

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

09:20-14:47

2 stops43h 27m

Philadelphia

Wed 23/9

07:00-07:20

2 stops34h 20m

$1,324

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Fri 28/8

10:55-21:43

2 stops24h 48m

Philadelphia

Fri 4/9

15:05-08:15

2 stops27h 10m

$1,368

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Mon 31/8

10:55-07:49

1 stop34h 54m

Philadelphia

Mon 7/9

08:20-07:30

2 stops33h 10m

$1,368
Fastest return journey

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

09:10-18:42

1 stop23h 32m

Philadelphia

Wed 23/9

17:30-07:05

1 stop23h 35m

$1,536

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

09:10-18:42

1 stop23h 32m

Philadelphia

Wed 23/9

17:30-07:05

1 stop23h 35m

$1,555

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 13/8

09:10-08:08

1 stop36h 58m

Philadelphia

Mon 17/8

21:55-07:05

1 stop43h 10m

$1,575

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 9/9

09:10-18:55

2 stops23h 45m

Philadelphia

Wed 23/9

17:30-07:05

1 stop23h 35m

$1,575

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Tue 1/9

22:00-14:30

1 stop30h 00m

Philadelphia

Mon 7/9

21:30-15:00

1 stop28h 00m

$2,542

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Tue 1/9

18:20-14:30

2 stops33h 40m

Philadelphia

Mon 7/9

21:30-15:00

1 stop28h 00m

$2,824

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Philadelphia from

Philadelphia flights insights and trends

Explore insights for your Philadelphia flight to craft the best travel plan

What is the cheapest month to fly to Philadelphia?

If you aren’t able to travel to Philadelphia during the month of July, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,643.

Cheapest flights to Philadelphia

Find the cheapest flights to Philadelphia from your nearest city or airport
Find flights from Sydney to Philadelphia
CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM SYDNEYJuly29% cheaperFlying from Sydney to Philadelphia costs on average just $1,490 in July
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember59% more expensiveIt costs about $3,330 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYJuly475% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in July than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$941

Best Round-Trip Price

$1,261

Fastest flight time

24h 30m

Popular in

July
The best one-way flight price to Philadelphia from Australia in the last 5 days is $941 (Adelaide to Philadelphia).
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The best return flight price to Philadelphia from Australia in the last 5 days is $1,261 (Sydney Kingsford Smith to Philadelphia).
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The fastest flight to Philadelphia from Australia takes 24h 30m (Brisbane to Philadelphia).
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July has the highest demand for flights to Philadelphia, with a 13% price increase on average.
Search Deals

Frequently asked questions about flying to Philadelphia

When is it best to fly to Philadelphia to go sightseeing?

Most momondo users would consider April, May, and September to be the best times to fly to Philadelphia to see sights like University of Pennsylvania. Typically, the weather in Philadelphia is under 70 degrees Fahrenheit (21°C) but still warm and the chance of rain is only moderate.

Is there an alternative airport near Philadelphia?

Those flying to Philadelphia could potentially find better pricing at Philadelphia Airport (11 km from Philadelphia city centre), Trenton-Mercer Airport (46 km from Philadelphia city centre), Greater Wilmington Airport (49 km from Philadelphia city centre), Atlantic City Airport (74 km from Philadelphia city centre) or Newark Airport (117 km from Philadelphia city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Philadelphia?

New Windsor Stewart Airport has an average price of $166 per person and is typically the cheapest airport to fly into when visiting Philadelphia. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Philadelphia?

Users booking trips to Philadelphia from Atlanta found flights 85% cheaper than the average price of flights to Philadelphia. To find the cheapest price to Philadelphia from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Philadelphia Airport?

Prices for flights to Philadelphia Airport are updated daily.

How many operators does momondo search for flights to Philadelphia Airport?

The number of operators available for flights to Philadelphia Airport is 4 as of August 2026.

How old do you have to be to fly to Philadelphia Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Rehoboth Beach
Elkton
Cherry Hill

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Philadelphia. Millions of users trust and use momondo every year so you are in good company.

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

All flight searches to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Philadelphia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Philadelphia.

I’m not ready to book a flight to Philadelphia right now. Can momondo alert me if prices change?

Price alerts on flights to 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 Philadelphia trip

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Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Popular routes according to searches in the past day on momondo
Melbourne to Philadelphia Flightsfrom $1,156
Sydney Kingsford Smith to Philadelphia Flightsfrom $928
Adelaide to Philadelphia Flightsfrom $1,297
Perth to Philadelphia Flightsfrom $1,311
Brisbane to Philadelphia Flightsfrom $950
Darwin to Philadelphia Flightsfrom $1,910