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Cheap flights from Philadelphia to Adelaide from $1,322

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Adelaide departing on 3/7. 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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0 bags

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Find the cheapest flights from Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
7:17 pm - 10:55 am
PHL
-
ADL
48h 08m
2 stops
Qantas Airways Logo
7:10 pm - 5:51 am
ADL
-
PHL
49h 11m
2 stops
$1,322Qantas Airways
Sat, Mar 7 - Sun, Mar 15
Qantas Airways Logo
5:17 pm - 10:55 am
PHL
-
ADL
27h 08m
2 stops
Qantas Airways Logo
6:25 am - 8:34 pm
ADL
-
PHL
27h 39m
2 stops
$1,347Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Qantas Airways Logo
3:54 pm - 10:55 am
PHL
-
ADL
28h 31m
2 stops
Qantas Airways Logo
8:00 pm - 6:54 pm
ADL
-
PHL
36h 24m
2 stops
$1,363Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Qantas Airways Logo
3:44 pm - 6:15 pm
PHL
-
ADL
36h 01m
2 stops
Qantas Airways Logo
8:00 pm - 6:54 pm
ADL
-
PHL
36h 24m
2 stops
$1,385Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Qantas Airways Logo
7:17 pm - 10:55 am
PHL
-
ADL
48h 08m
2 stops
Qantas Airways Logo
12:35 pm - 5:45 am
ADL
-
PHL
31h 40m
2 stops
$1,428Qantas Airways
Sat, Mar 7 - Fri, Mar 13
Air New Zealand Logo
9:25 am - 10:55 am
PHL
-
ADL
36h 00m
2 stops
Air New Zealand Logo
12:05 pm - 10:25 pm
ADL
-
PHL
23h 50m
2 stops
$1,558Air New Zealand
Fri, Aug 7 - Fri, Aug 14
Air New Zealand Logo
9:25 am - 11:55 am
PHL
-
ADL
37h 00m
2 stops
Air New Zealand Logo
12:05 pm - 11:58 am
ADL
-
PHL
37h 23m
2 stops
$1,564Air New Zealand
Fri, May 22 - Fri, May 29
Qatar Airways Logo
7:40 pm - 12:40 pm
PHL
-
ADL
49h 30m
2 stops
Qatar Airways Logo
10:00 pm - 9:00 am
ADL
-
PHL
49h 30m
1 stop
$1,672Qatar Airways
Sat, Mar 7 - Sun, Mar 15
Air New Zealand Logo
6:23 pm - 7:05 pm
PHL
-
ADL
35h 12m
2 stops
Air New Zealand Logo
7:00 am - 1:29 am
ADL
-
PHL
31h 59m
3 stops
$1,791Air New Zealand
Fri, May 22 - Fri, May 29
Qatar Airways Logo
7:40 pm - 5:05 pm
PHL
-
ADL
29h 55m
1 stop
Qatar Airways Logo
6:20 pm - 9:00 am
ADL
-
PHL
53h 10m
2 stops
$1,832Qatar Airways
Sat, Mar 7 - Fri, Mar 13

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
Feb 25
PHL5:00 pmPhiladelphia
49h 00m
2 stops
ADL9:30 amAdelaide
Mar 1
ADL8:30 amAdelaide
28h 33m
2 stops
PHL9:33 pmPhiladelphia
$2,915
United Airlines
Apr 4
PHL6:21 pmPhiladelphia
27h 04m
2 stops
ADL10:55 amAdelaide
Apr 11
ADL8:00 pmAdelaide
34h 45m
2 stops
PHL5:15 pmPhiladelphia
$3,534
United Airlines
Feb 25
PHL12:44 pmPhiladelphia
30h 41m
2 stops
ADL10:55 amAdelaide
Mar 1
ADL6:10 amAdelaide
32h 50m
3 stops
PHL11:30 pmPhiladelphia
$4,017

Qatar Airways flights from Philadelphia to Adelaide

Our best Qatar Airways deals on Philadelphia to Adelaide flight tickets
Qatar Airways
Mar 7
PHL7:40 pmPhiladelphia
49h 30m
2 stops
ADL12:40 pmAdelaide
Mar 15
ADL10:00 pmAdelaide
49h 30m
1 stop
PHL9:00 amPhiladelphia
$1,672
Qatar Airways
Mar 7
PHL7:40 pmPhiladelphia
29h 55m
1 stop
ADL5:05 pmAdelaide
Mar 13
ADL6:20 pmAdelaide
53h 10m
2 stops
PHL9:00 amPhiladelphia
$1,832
Qatar Airways
Feb 25
PHL7:40 pmPhiladelphia
35h 05m
2 stops
ADL10:15 pmAdelaide
Mar 1
ADL10:00 pmAdelaide
50h 30m
1 stop
PHL9:00 amPhiladelphia
$1,854

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated February 20, 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

Sat 3/7

7:17 pm-10:55 am

2 stops48h 08m

Adelaide

Sun 3/15

7:10 pm-5:51 am

2 stops49h 11m

$1,322

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

5:17 pm-10:55 am

2 stops27h 08m

Adelaide

Fri 4/10

6:25 am-8:34 pm

2 stops27h 39m

$1,347

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

3:54 pm-10:55 am

2 stops28h 31m

Adelaide

Fri 4/10

8:00 pm-6:54 pm

2 stops36h 24m

$1,363

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

3:44 pm-6:15 pm

2 stops36h 01m

Adelaide

Fri 4/10

8:00 pm-6:54 pm

2 stops36h 24m

$1,385

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 3/7

7:17 pm-10:55 am

2 stops48h 08m

Adelaide

Fri 3/13

12:35 pm-5:45 am

2 stops31h 40m

$1,428

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 8/7

9:25 am-10:55 am

2 stops36h 00m

Adelaide

Fri 8/14

12:05 pm-10:25 pm

2 stops23h 50m

$1,558

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 5/22

9:25 am-11:55 am

2 stops37h 00m

Adelaide

Fri 5/29

12:05 pm-11:58 am

2 stops37h 23m

$1,564

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 3/7

7:40 pm-12:40 pm

2 stops49h 30m

Adelaide

Sun 3/15

10:00 pm-9:00 am

1 stop49h 30m

$1,672

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 5/22

6:23 pm-7:05 pm

2 stops35h 12m

Adelaide

Fri 5/29

7:00 am-1:29 am

3 stops31h 59m

$1,791

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 3/7

7:40 pm-5:05 pm

1 stop29h 55m

Adelaide

Fri 3/13

6:20 pm-9:00 am

2 stops53h 10m

$1,832

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 round-trip 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

35h 05m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 35h 05m
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?

    Philadelphia and Adelaide are 10557.0 mi apart from one another. A reasonable flight in good conditions will take 35h 05m.

  • 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Adelaide 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 license 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.

  • How do I get Price Alerts for flights from Philadelphia to Adelaide?

    Price Alerts will notify you by email when the price for flights to Adelaide from Philadelphia decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Philadelphia to Adelaide with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling 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?

It is quick and easy to find Philadelphia to Adelaide flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Adelaide that suits you.

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

Yes. momondo allows you to filter the results for Philadelphia to Adelaide flights to just show those with flexible booking policies.

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

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 help filter your options to help you make an informed choice when booking flights to Adelaide from Philadelphia.

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

Yes momondo offers price alerts on flights to Adelaide from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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