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Cheap flights from Philadelphia to Adelaide from $623

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 4/30. 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.
Air New Zealand Logo
12:50 pm - 10:55 am
PHL
-
ADL
32h 35m
2 stops
Air New Zealand Logo
12:05 pm - 8:00 am
ADL
-
PHL
33h 25m
2 stops
$1,434Air New Zealand
Fri, May 1 - Fri, May 15
Air New Zealand Logo
8:00 am - 10:55 am
PHL
-
ADL
37h 25m
2 stops
Air New Zealand Logo
12:05 pm - 11:49 am
ADL
-
PHL
37h 14m
2 stops
$1,461Air New Zealand
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
5:43 pm - 11:05 am
PHL
-
ADL
27h 52m
2 stops
Multiple Airlines Logo
6:25 am - 6:52 pm
ADL
-
PHL
25h 57m
2 stops
$1,473Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
3:29 pm - 11:55 am
PHL
-
ADL
30h 56m
2 stops
Qantas Airways Logo
1:25 pm - 7:00 am
ADL
-
PHL
31h 05m
2 stops
$1,486Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Multiple Airlines Logo
5:43 pm - 11:05 am
PHL
-
ADL
27h 52m
2 stops
Multiple Airlines Logo
6:00 am - 6:28 pm
ADL
-
PHL
25h 58m
2 stops
$1,510Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
2:18 pm - 9:50 am
PHL
-
ADL
29h 02m
2 stops
Qantas Airways Logo
6:25 am - 6:48 pm
ADL
-
PHL
25h 53m
2 stops
$1,513Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Multiple Airlines Logo
9:55 am - 10:55 am
PHL
-
ADL
35h 30m
3 stops
Multiple Airlines Logo
12:05 pm - 9:59 am
ADL
-
PHL
35h 24m
3 stops
$1,518Multiple Airlines
Fri, May 1 - Fri, May 15
Qantas Airways Logo
5:43 pm - 11:05 am
PHL
-
ADL
27h 52m
2 stops
Qantas Airways Logo
12:40 pm - 7:00 am
ADL
-
PHL
31h 50m
2 stops
$1,525Qantas Airways
Sun, Jun 14 - Wed, Jul 8
Multiple Airlines Logo
5:43 pm - 9:15 am
PHL
-
ADL
26h 02m
2 stops
Multiple Airlines Logo
12:00 pm - 7:00 am
ADL
-
PHL
32h 30m
2 stops
$1,534Multiple Airlines
Sun, Jun 14 - Wed, Jul 8
Qantas Airways Logo
5:43 pm - 11:05 am
PHL
-
ADL
27h 52m
2 stops
Qantas Airways Logo
1:25 pm - 7:00 am
ADL
-
PHL
31h 05m
2 stops
$1,537Qantas Airways
Sun, Jun 14 - Wed, Jul 8

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
Jun 14
PHL3:29 pmPhiladelphia
30h 56m
2 stops
ADL11:55 amAdelaide
Jul 8
ADL1:25 pmAdelaide
31h 05m
2 stops
PHL7:00 amPhiladelphia
$1,486
Qantas Airways
Mar 24
PHL2:18 pmPhiladelphia
29h 02m
2 stops
ADL9:50 amAdelaide
Apr 10
ADL6:25 amAdelaide
25h 53m
2 stops
PHL6:48 pmPhiladelphia
$1,513
Qantas Airways
Jun 14
PHL5:43 pmPhiladelphia
27h 52m
2 stops
ADL11:05 amAdelaide
Jul 8
ADL12:40 pmAdelaide
31h 50m
2 stops
PHL7:00 amPhiladelphia
$1,525

Air New Zealand flights from Philadelphia to Adelaide

Our best Air New Zealand deals on Philadelphia to Adelaide flight tickets
Air New Zealand
May 1
PHL12:50 pmPhiladelphia
32h 35m
2 stops
ADL10:55 amAdelaide
May 15
ADL12:05 pmAdelaide
33h 25m
2 stops
PHL8:00 amPhiladelphia
$1,434
Air New Zealand
Apr 24
PHL8:00 amPhiladelphia
37h 25m
2 stops
ADL10:55 amAdelaide
May 1
ADL12:05 pmAdelaide
37h 14m
2 stops
PHL11:49 amPhiladelphia
$1,461
Air New Zealand
Jun 12
PHL9:25 amPhiladelphia
36h 00m
2 stops
ADL10:55 amAdelaide
Jul 6
ADL7:10 pmAdelaide
35h 37m
2 stops
PHL5:17 pmPhiladelphia
$1,564

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 March 13, 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

Cheapest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 5/1

12:50 pm-10:55 am

2 stops32h 35m

Adelaide

Fri 5/15

12:05 pm-8:00 am

2 stops33h 25m

$1,434

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 4/24

8:00 am-10:55 am

2 stops37h 25m

Adelaide

Fri 5/1

12:05 pm-11:49 am

2 stops37h 14m

$1,461
Quickest round-trip

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:43 pm-11:05 am

2 stops27h 52m

Adelaide

Wed 7/8

6:25 am-6:52 pm

2 stops25h 57m

$1,473

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

3:29 pm-11:55 am

2 stops30h 56m

Adelaide

Wed 7/8

1:25 pm-7:00 am

2 stops31h 05m

$1,486

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:43 pm-11:05 am

2 stops27h 52m

Adelaide

Wed 7/8

6:00 am-6:28 pm

2 stops25h 58m

$1,510

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

2:18 pm-9:50 am

2 stops29h 02m

Adelaide

Fri 4/10

6:25 am-6:48 pm

2 stops25h 53m

$1,513

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 5/1

9:55 am-10:55 am

3 stops35h 30m

Adelaide

Fri 5/15

12:05 pm-9:59 am

3 stops35h 24m

$1,518

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:43 pm-11:05 am

2 stops27h 52m

Adelaide

Wed 7/8

12:40 pm-7:00 am

2 stops31h 50m

$1,525

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:43 pm-9:15 am

2 stops26h 02m

Adelaide

Wed 7/8

12:00 pm-7:00 am

2 stops32h 30m

$1,534

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sun 6/14

5:43 pm-11:05 am

2 stops27h 52m

Adelaide

Wed 7/8

1:25 pm-7:00 am

2 stops31h 05m

$1,537

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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?

Air New Zealand is the most popular carrier 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 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

27h 52m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 27h 52m
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 27h 52m.

  • 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.

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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