Latest deals
Insights
When to book
FAQs
Price Alerts
Look for other cheap flights to Philadelphia

$837 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 15/8. 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.
Search flight deals

Find the cheapest flights from Australia to Philadelphia

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
09:20 - 09:48
SYD
-
PHL
38h 28m
2 stops
Air Canada Logo
10:05 - 07:20
PHL
-
SYD
31h 15m
2 stops
$1,374Air Canada
Wed, 20 May - Thu, 4 Jun
Air Canada Logo
09:20 - 09:48
SYD
-
PHL
38h 28m
2 stops
Air Canada Logo
10:05 - 07:20
PHL
-
SYD
31h 15m
3 stops
$1,393Air Canada
Wed, 20 May - Thu, 4 Jun
Air Canada Logo
09:20 - 22:43
SYD
-
PHL
27h 23m
2 stops
Air Canada Logo
10:05 - 07:20
PHL
-
SYD
31h 15m
2 stops
$1,394Air Canada
Thu, 7 May - Thu, 14 May
American Airlines Logo
09:45 - 20:41
MEL
-
PHL
24h 56m
1 stop
American Airlines Logo
21:51 - 09:05
PHL
-
MEL
45h 14m
2 stops
$1,826American Airlines
Thu, 27 Aug - Mon, 31 Aug
Qantas Airways Logo
20:35 - 07:05
BNE
-
PHL
24h 30m
1 stop
Qantas Airways Logo
17:07 - 06:30
PHL
-
BNE
22h 23m
1 stop
$1,841Qantas Airways
Sat, 29 Aug - Tue, 17 Nov
Qantas Airways Logo
09:45 - 18:54
MEL
-
PHL
23h 09m
1 stop
Qantas Airways Logo
15:21 - 05:00
PHL
-
MEL
23h 39m
1 stop
$1,859Qantas Airways
Fri, 8 May - Wed, 20 May
American Airlines Logo
20:35 - 05:35
BNE
-
PHL
23h 00m
2 stops
American Airlines Logo
15:55 - 05:50
PHL
-
BNE
22h 55m
1 stop
$1,868American Airlines
Sat, 29 Aug - Tue, 17 Nov
United Airlines Logo
09:30 - 21:41
MEL
-
PHL
26h 11m
2 stops
United Airlines Logo
13:26 - 07:30
PHL
-
MEL
28h 04m
3 stops
$1,875United Airlines
Fri, 8 May - Wed, 20 May
Qatar Airways Logo
12:10 - 19:49
CBR
-
PHL
45h 39m
3 stops
Qatar Airways Logo
20:30 - 22:25
PHL
-
CBR
35h 55m
2 stops
$3,119Qatar Airways
Thu, 27 Aug - Mon, 31 Aug
United Airlines Logo
08:10 - 08:00
CBR
-
PHL
37h 50m
2 stops
United Airlines Logo
09:55 - 10:40
PHL
-
CBR
34h 45m
3 stops
$3,135United Airlines
Fri, 8 May - Fri, 15 May

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 26 March 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 20/5

09:20-09:48

2 stops38h 28m

Philadelphia

Thu 4/6

10:05-07:20

2 stops31h 15m

$1,374

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 20/5

09:20-09:48

2 stops38h 28m

Philadelphia

Thu 4/6

10:05-07:20

3 stops31h 15m

$1,393

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 7/5

09:20-22:43

2 stops27h 23m

Philadelphia

Thu 14/5

10:05-07:20

2 stops31h 15m

$1,394

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Thu 27/8

09:45-20:41

1 stop24h 56m

Philadelphia

Mon 31/8

21:51-09:05

2 stops45h 14m

$1,826

BrisbanePhiladelphia

BNE - PHL

BNEPHL

Brisbane

Sat 29/8

20:35-07:05

1 stop24h 30m

Philadelphia

Tue 17/11

17:07-06:30

1 stop22h 23m

$1,841

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Fri 8/5

09:45-18:54

1 stop23h 09m

Philadelphia

Wed 20/5

15:21-05:00

1 stop23h 39m

$1,859
Fastest return journey

BrisbanePhiladelphia

BNE - PHL

BNEPHL

Brisbane

Sat 29/8

20:35-05:35

2 stops23h 00m

Philadelphia

Tue 17/11

15:55-05:50

1 stop22h 55m

$1,868

MelbournePhiladelphia

MEL - PHL

MELPHL

Melbourne

Fri 8/5

09:30-21:41

2 stops26h 11m

Philadelphia

Wed 20/5

13:26-07:30

3 stops28h 04m

$1,875

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Thu 27/8

12:10-19:49

3 stops45h 39m

Philadelphia

Mon 31/8

20:30-22:25

2 stops35h 55m

$3,119

CanberraPhiladelphia

CBR - PHL

CBRPHL

Canberra

Fri 8/5

08:10-08:00

2 stops37h 50m

Philadelphia

Fri 15/5

09:55-10:40

3 stops34h 45m

$3,135

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 $1,664.

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 $2,047 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 $1,666 on momondo.

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 SYDNEYOctober20% cheaperFlying from Sydney to Philadelphia costs on average just $1,640 in October
MOST EXPENSIVE MONTH TO FLY TO PHILADELPHIA FROM SYDNEYMay34% more expensiveIt costs about $2,755 for flights to Philadelphia from Sydney in May
MOST POPULAR MONTH TO FLY TO PHILADELPHIA FROM SYDNEYMay866% 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

$837

Best Round-Trip Price

$1,374

Fastest flight time

35h 36m

Popular in

July
The best one-way flight price to Philadelphia from Australia in the last 72 hours is $837 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The best round-trip flight price to Philadelphia from Australia in the last 72 hours is $1,374 (Sydney Kingsford Smith to Philadelphia).
Search Deals
The fastest flight to Philadelphia from Australia takes 35h 36m (Brisbane to Philadelphia).
Search Deals
July has the highest demand for flights to Philadelphia, with a 14% 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.

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 $2,047. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as $1,157.

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 $187 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 82% 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 6 as of March 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 25/4
Sat 2/5
By creating a price alert you accept our terms of use and privacy policy.

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 $1,477
Brisbane to Philadelphia Flightsfrom $2,032
Sydney Kingsford Smith to Philadelphia Flightsfrom $1,259
Perth to Philadelphia Flightsfrom $1,473
Adelaide to Philadelphia Flightsfrom $1,448
Darwin to Philadelphia Flightsfrom $2,958