Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Philadelphia to Adelaide from $607

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 4/15. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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 Philadelphia to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
3:51 pm - 9:40 am
PHL
-
ADL
28h 19m
2 stops
Qantas Airways Logo
5:10 pm - 7:08 am
ADL
-
PHL
27h 28m
2 stops
$1,472Qantas Airways
Tue, Apr 21 - Tue, May 5
Qantas Airways Logo
2:18 pm - 9:50 am
PHL
-
ADL
29h 02m
2 stops
Qantas Airways Logo
1:25 pm - 5:52 am
ADL
-
PHL
29h 57m
2 stops
$1,502Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Qantas Airways Logo
2:18 pm - 1:00 pm
PHL
-
ADL
32h 12m
2 stops
Qantas Airways Logo
11:50 am - 5:52 am
ADL
-
PHL
31h 32m
2 stops
$1,508Qantas Airways
Tue, Mar 24 - Fri, Apr 10
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
Qantas Airways Logo
2:18 pm - 9:50 am
PHL
-
ADL
29h 02m
2 stops
Qantas Airways Logo
6:00 am - 6:54 pm
ADL
-
PHL
26h 24m
2 stops
$1,551Qantas Airways
Tue, Mar 24 - Fri, Apr 10
Qantas Airways Logo
3:43 pm - 9:25 am
PHL
-
ADL
28h 12m
2 stops
Qantas Airways Logo
5:10 pm - 6:54 pm
ADL
-
PHL
39h 14m
2 stops
$1,586Qantas Airways
Sat, Apr 18 - Sat, Apr 25
Qatar Airways Logo
8:30 pm - 3:50 pm
PHL
-
ADL
29h 50m
1 stop
Qatar Airways Logo
6:20 pm - 9:05 am
ADL
-
PHL
52h 15m
2 stops
$1,652Qatar Airways
Tue, Apr 21 - Tue, May 5
American Airlines Logo
2:31 pm - 9:25 am
PHL
-
ADL
28h 24m
2 stops
American Airlines Logo
2:25 pm - 5:51 am
ADL
-
PHL
29h 56m
2 stops
$1,755American Airlines
Sat, Mar 28 - Sat, Apr 4
Qantas Airways Logo
2:18 pm - 1:40 pm
PHL
-
ADL
32h 52m
2 stops
Qantas Airways Logo
8:00 pm - 7:42 pm
ADL
-
PHL
38h 12m
2 stops
$1,768Qantas Airways
Thu, Mar 19 - Mon, Mar 23
Qantas Airways Logo
2:18 pm - 1:40 pm
PHL
-
ADL
32h 52m
2 stops
Qantas Airways Logo
7:00 pm - 7:42 pm
ADL
-
PHL
39h 12m
2 stops
$1,769Qantas Airways
Thu, Mar 19 - Mon, Mar 23

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
Apr 21
PHL3:51 pmPhiladelphia
28h 19m
2 stops
ADL9:40 amAdelaide
May 5
ADL5:10 pmAdelaide
27h 28m
2 stops
PHL7:08 amPhiladelphia
$1,472
Qantas Airways
Mar 24
PHL2:18 pmPhiladelphia
29h 02m
2 stops
ADL9:50 amAdelaide
Apr 10
ADL1:25 pmAdelaide
29h 57m
2 stops
PHL5:52 amPhiladelphia
$1,502
Qantas Airways
Mar 24
PHL2:18 pmPhiladelphia
32h 12m
2 stops
ADL1:00 pmAdelaide
Apr 10
ADL11:50 amAdelaide
31h 32m
2 stops
PHL5:52 amPhiladelphia
$1,508

Qatar Airways flights from Philadelphia to Adelaide

Our best Qatar Airways deals on Philadelphia to Adelaide flight tickets
Qatar Airways
Apr 21
PHL8:30 pmPhiladelphia
29h 50m
1 stop
ADL3:50 pmAdelaide
May 5
ADL6:20 pmAdelaide
52h 15m
2 stops
PHL9:05 amPhiladelphia
$1,652
Qatar Airways
Apr 18
PHL8:30 pmPhiladelphia
35h 10m
2 stops
ADL9:10 pmAdelaide
Apr 25
ADL9:40 pmAdelaide
48h 55m
1 stop
PHL9:05 amPhiladelphia
$1,948
Qatar Airways
Mar 24
PHL8:45 pmPhiladelphia
59h 10m
2 stops
ADL10:25 pmAdelaide
Apr 10
ADL9:40 pmAdelaide
48h 55m
1 stop
PHL9:05 amPhiladelphia
$2,071

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 6, 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

Tue 4/21

3:51 pm-9:40 am

2 stops28h 19m

Adelaide

Tue 5/5

5:10 pm-7:08 am

2 stops27h 28m

$1,472

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

2:18 pm-9:50 am

2 stops29h 02m

Adelaide

Fri 4/10

1:25 pm-5:52 am

2 stops29h 57m

$1,502

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 3/24

2:18 pm-1:00 pm

2 stops32h 12m

Adelaide

Fri 4/10

11:50 am-5:52 am

2 stops31h 32m

$1,508
Quickest round-trip

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

Tue 3/24

2:18 pm-9:50 am

2 stops29h 02m

Adelaide

Fri 4/10

6:00 am-6:54 pm

2 stops26h 24m

$1,551

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 4/18

3:43 pm-9:25 am

2 stops28h 12m

Adelaide

Sat 4/25

5:10 pm-6:54 pm

2 stops39h 14m

$1,586

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 4/21

8:30 pm-3:50 pm

1 stop29h 50m

Adelaide

Tue 5/5

6:20 pm-9:05 am

2 stops52h 15m

$1,652

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 3/28

2:31 pm-9:25 am

2 stops28h 24m

Adelaide

Sat 4/4

2:25 pm-5:51 am

2 stops29h 56m

$1,755

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 3/19

2:18 pm-1:40 pm

2 stops32h 52m

Adelaide

Mon 3/23

8:00 pm-7:42 pm

2 stops38h 12m

$1,768

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 3/19

2:18 pm-1:40 pm

2 stops32h 52m

Adelaide

Mon 3/23

7:00 pm-7:42 pm

2 stops39h 12m

$1,769

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 and Qatar Airways 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 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

28h 19m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 19m
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 28h 19m.

  • 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.

An easier way to manage your Adelaide trip

We make it super easy to schedule, organize 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
Sun 4/5
Sun 4/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia