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Cheap flights from Philadelphia to Adelaide from $781

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 Adelaide departing on 15/5. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
15:54 - 11:50
PHL
-
ADL
29h 26m
2 stops
Qantas Airways Logo
17:10 - 08:08
ADL
-
PHL
29h 28m
2 stops
$1,811Qantas Airways
Tue, 17 Mar - Tue, 24 Mar
Qantas Airways Logo
19:00 - 13:45
PHL
-
ADL
28h 15m
2 stops
Qantas Airways Logo
13:25 - 05:52
ADL
-
PHL
29h 57m
2 stops
$1,952Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
15:44 - 10:55
PHL
-
ADL
28h 41m
2 stops
Qantas Airways Logo
13:25 - 05:52
ADL
-
PHL
29h 57m
2 stops
$1,953Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
17:17 - 11:50
PHL
-
ADL
28h 03m
2 stops
Qantas Airways Logo
13:25 - 05:52
ADL
-
PHL
29h 57m
2 stops
$1,955Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
United Airlines Logo
18:20 - 14:10
PHL
-
ADL
29h 20m
2 stops
United Airlines Logo
06:10 - 23:32
ADL
-
PHL
31h 52m
3 stops
$2,060United Airlines
Tue, 17 Mar - Tue, 24 Mar
Qantas Airways Logo
15:59 - 18:00
PHL
-
ADL
34h 31m
2 stops
Qantas Airways Logo
19:10 - 00:54
ADL
-
PHL
44h 14m
2 stops
$2,073Qantas Airways
Wed, 4 Mar - Sun, 8 Mar
Qantas Airways Logo
15:59 - 18:00
PHL
-
ADL
34h 31m
2 stops
Qantas Airways Logo
19:10 - 19:25
ADL
-
PHL
38h 45m
2 stops
$2,100Qantas Airways
Wed, 4 Mar - Sun, 8 Mar
Air Canada Logo
07:25 - 18:10
PHL
-
ADL
44h 15m
3 stops
Air Canada Logo
20:00 - 15:44
ADL
-
PHL
57h 14m
3 stops
$2,452Air Canada
Tue, 24 Mar - Fri, 10 Apr
Air Canada Logo
07:25 - 13:55
PHL
-
ADL
40h 00m
3 stops
Air Canada Logo
20:00 - 15:44
ADL
-
PHL
57h 14m
3 stops
$2,453Air Canada
Tue, 24 Mar - Fri, 10 Apr
United Airlines Logo
08:46 - 14:10
PHL
-
ADL
38h 54m
2 stops
United Airlines Logo
06:10 - 17:15
ADL
-
PHL
25h 35m
2 stops
$2,576United Airlines
Tue, 24 Mar - Tue, 31 Mar

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
17 Mar
PHL15:54Philadelphia
29h 26m
2 stops
ADL11:50Adelaide
24 Mar
ADL06:25Adelaide
29h 49m
2 stops
PHL21:44Philadelphia
$1,809
Qantas Airways
17 Mar
PHL15:54Philadelphia
29h 26m
2 stops
ADL11:50Adelaide
24 Mar
ADL17:10Adelaide
29h 28m
2 stops
PHL08:08Philadelphia
$1,811
Qantas Airways
24 Mar
PHL19:00Philadelphia
28h 15m
2 stops
ADL13:45Adelaide
10 Apr
ADL13:25Adelaide
29h 57m
2 stops
PHL05:52Philadelphia
$1,952

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
17 Mar
PHL18:20Philadelphia
29h 20m
2 stops
ADL14:10Adelaide
24 Mar
ADL06:10Adelaide
31h 52m
3 stops
PHL23:32Philadelphia
$2,060
United Airlines
24 Mar
PHL08:46Philadelphia
38h 54m
2 stops
ADL14:10Adelaide
31 Mar
ADL06:10Adelaide
25h 35m
2 stops
PHL17:15Philadelphia
$2,576
United Airlines
4 Mar
PHL08:35Philadelphia
36h 55m
2 stops
ADL13:00Adelaide
8 Mar
ADL06:10Adelaide
31h 52m
3 stops
PHL22:32Philadelphia
$4,058

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 9 February 2026.
Use the filters below to find and compare flights from Philadelphia to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 17/3

15:54-11:50

2 stops29h 26m

Adelaide

Tue 24/3

17:10-08:08

2 stops29h 28m

$1,811

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

19:00-13:45

2 stops28h 15m

Adelaide

Fri 10/4

13:25-05:52

2 stops29h 57m

$1,952

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

15:44-10:55

2 stops28h 41m

Adelaide

Fri 10/4

13:25-05:52

2 stops29h 57m

$1,953

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

17:17-11:50

2 stops28h 03m

Adelaide

Fri 10/4

13:25-05:52

2 stops29h 57m

$1,955

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 17/3

18:20-14:10

2 stops29h 20m

Adelaide

Tue 24/3

06:10-23:32

3 stops31h 52m

$2,060

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 4/3

15:59-18:00

2 stops34h 31m

Adelaide

Sun 8/3

19:10-00:54

2 stops44h 14m

$2,073

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 4/3

15:59-18:00

2 stops34h 31m

Adelaide

Sun 8/3

19:10-19:25

2 stops38h 45m

$2,100

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

07:25-18:10

3 stops44h 15m

Adelaide

Fri 10/4

20:00-15:44

3 stops57h 14m

$2,452

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

07:25-13:55

3 stops40h 00m

Adelaide

Fri 10/4

20:00-15:44

3 stops57h 14m

$2,453

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

08:46-14:10

2 stops38h 54m

Adelaide

Tue 31/3

06:10-17:15

2 stops25h 35m

$2,576

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Adelaide from

How to get the cheapest flight ticket from Philadelphia to Adelaide

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 airline that flies from Philadelphia to Adelaide?

Qantas Airways and Air New Zealand are the most popular carriers operating from Philadelphia to Adelaide

When to book flights from Philadelphia to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Adelaide according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Philadelphia to Adelaide (PHL to ADL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Adelaide

Fastest flight time

28h 41m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 41m
There are no direct flights from Philadelphia to Adelaide. There are no popular flight routes from Philadelphia to Adelaide.
Search flight deals

  • How far is Philadelphia to Adelaide by plane?

    There are 16989.8 km between Philadelphia and Adelaide. A reasonable flight in good conditions will take 28h 41m.

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

    Prices for flights from Philadelphia Airport to Adelaide Airport refresh daily.

  • How old do you have to be to fly from Philadelphia Airport to Adelaide 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 from Philadelphia Airport to Adelaide Airport.

  • What documentation or ID do you need to fly to Adelaide Airport?

    The required travel and health documents for your Adelaide Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Adelaide Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Adelaide from Philadelphia.

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

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

How can momondo help me find flights from Philadelphia to Adelaide?

Once you have performed a search for Philadelphia to Adelaide 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 Adelaide right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Adelaide, momondo offers a useful price alert feature which will track prices for flights to Adelaide from Philadelphia and alert you when they change.

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