Look for other cheap flights to Philadelphia

$771 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 11/6. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Australia to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:15 - 06:21
SYD
-
PHL
31h 06m
3 stops
Multiple Airlines Logo
10:40 - 11:50
PHL
-
SYD
35h 10m
3 stops
$1,548Multiple Airlines
Sat, 23 May - Sat, 30 May
Multiple Airlines Logo
13:15 - 05:37
SYD
-
PHL
54h 22m
3 stops
Multiple Airlines Logo
10:40 - 11:50
PHL
-
SYD
35h 10m
3 stops
$1,592Multiple Airlines
Sun, 24 May - Sun, 31 May
Multiple Airlines Logo
13:30 - 05:37
MEL
-
PHL
30h 07m
3 stops
Multiple Airlines Logo
06:30 - 12:25
PHL
-
MEL
39h 55m
3 stops
$1,690Multiple Airlines
Mon, 1 Jun - Sun, 14 Jun
Qantas Airways Logo
20:35 - 07:00
BNE
-
PHL
24h 25m
1 stop
Qantas Airways Logo
15:35 - 05:00
PHL
-
BNE
23h 25m
1 stop
$2,560Qantas Airways
Tue, 28 Jul - Wed, 5 Aug
American Airlines Logo
20:35 - 08:10
BNE
-
PHL
25h 35m
1 stop
American Airlines Logo
17:43 - 05:00
PHL
-
BNE
21h 17m
1 stop
$2,568American Airlines
Mon, 24 Aug - Sun, 13 Sep
American Airlines Logo
20:35 - 08:10
BNE
-
PHL
25h 35m
1 stop
American Airlines Logo
15:35 - 05:00
PHL
-
BNE
23h 25m
1 stop
$2,646American Airlines
Sat, 22 Aug - Sun, 13 Sep
United Airlines Logo
08:10 - 01:29
CBR
-
PHL
31h 19m
2 stops
United Airlines Logo
06:00 - 13:15
PHL
-
CBR
41h 15m
2 stops
$2,964United Airlines
Thu, 21 May - Thu, 28 May
United Airlines Logo
06:05 - 12:25
ADL
-
PHL
43h 50m
3 stops
United Airlines Logo
06:00 - 11:05
PHL
-
ADL
39h 35m
2 stops
$2,987United Airlines
Sun, 24 May - Sun, 31 May
Qantas Airways Logo
06:00 - 18:35
CBR
-
PHL
26h 35m
2 stops
Qantas Airways Logo
15:29 - 12:10
PHL
-
CBR
30h 41m
2 stops
$3,015Qantas Airways
Thu, 21 May - Thu, 28 May
Air Canada Logo
20:00 - 21:33
ADL
-
PHL
39h 03m
3 stops
Air Canada Logo
10:05 - 13:55
PHL
-
ADL
38h 20m
3 stops
$3,152Air Canada
Thu, 4 Jun - Sun, 7 Jun

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 10 April 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

Sat 23/5

13:15-06:21

3 stops31h 06m

Philadelphia

Sat 30/5

10:40-11:50

3 stops35h 10m

$1,548

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sun 24/5

13:15-05:37

3 stops54h 22m

Philadelphia

Sun 31/5

10:40-11:50

3 stops35h 10m

$1,592

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Mon 1/6

13:30-05:37

3 stops30h 07m

Philadelphia

Sun 14/6

06:30-12:25

3 stops39h 55m

$1,690

BrisbanePhiladelphia

BNE - PHL

BNEPHL

Brisbane

Tue 28/7

20:35-07:00

1 stop24h 25m

Philadelphia

Wed 5/8

15:35-05:00

1 stop23h 25m

$2,560
Fastest return journey

BrisbanePhiladelphia

BNE - PHL

BNEPHL

Brisbane

Mon 24/8

20:35-08:10

1 stop25h 35m

Philadelphia

Sun 13/9

17:43-05:00

1 stop21h 17m

$2,568

BrisbanePhiladelphia

BNE - PHL

BNEPHL

Brisbane

Sat 22/8

20:35-08:10

1 stop25h 35m

Philadelphia

Sun 13/9

15:35-05:00

1 stop23h 25m

$2,646

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Thu 21/5

08:10-01:29

2 stops31h 19m

Philadelphia

Thu 28/5

06:00-13:15

2 stops41h 15m

$2,964

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Sun 24/5

06:05-12:25

3 stops43h 50m

Philadelphia

Sun 31/5

06:00-11:05

2 stops39h 35m

$2,987

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Thu 21/5

06:00-18:35

2 stops26h 35m

Philadelphia

Thu 28/5

15:29-12:10

2 stops30h 41m

$3,015

AdelaidePhiladelphia

ADL - PHL

ADLPHL

Adelaide

Thu 4/6

20:00-21:33

3 stops39h 03m

Philadelphia

Sun 7/6

10:05-13:55

3 stops38h 20m

$3,152

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,633.

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

You are more likely to see cheaper flights to Philadelphia from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $2,074 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Australia for as low as $1,634 on momondo.

Cheapest flights to Philadelphia

Find the cheapest flights to Philadelphia from your nearest city or airport
CHEAPEST MONTH TO FLY TO PHILADELPHIA FROM SYDNEYOctober23% cheaperFlying from Sydney to Philadelphia costs on average just $1,609 in October
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYSeptember36% more expensiveIt costs about $2,821 for flights to Philadelphia from Sydney in September
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYMay916% more users visitedMore momondo users searched in flights to Philadelphia from Sydney in May than any other month

Cheap Philadelphia flight deals and tips

Summary info about Philadelphia flight prices, duration and airlines

Best One-Way Price

$771

Best Round-Trip Price

$1,548

Fastest flight time

41h 10m

Popular in

July
The best one-way flight price to Philadelphia from Australia in the last 72 hours is $771 (Sydney Kingsford Smith to Philadelphia).
The best round-trip flight price to Philadelphia from Australia in the last 72 hours is $1,548 (Sydney Kingsford Smith to Philadelphia).
The fastest flight to Philadelphia from Australia takes 41h 10m (Sydney Kingsford Smith to Philadelphia).
July has the highest demand for flights to Philadelphia, with a 15% price increase on average.

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.

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

The ideal time to book your flight to Philadelphia is 81 days in advance, when prices tend to average $2,074. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as $1,135.

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 $183 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 Los Angeles found flights 57% 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?

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

We make it super easy to schedule, organise 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.
1 adult
Sun 10/5
Sun 17/5

Find better results for your trip to Philadelphia

Popular Flights to Philadelphia

Popular routes according to searches in the past day on momondo