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Cheap flights from Philadelphia to Adelaide from $1,871

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Adelaide departing on 7/3. 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
19:17 - 10:55
PHL
-
ADL
48h 08m
2 stops
Qantas Airways Logo
19:10 - 05:51
ADL
-
PHL
49h 11m
2 stops
$1,871Qantas Airways
Sat, 7 Mar - Sun, 15 Mar
Qantas Airways Logo
17:17 - 10:55
PHL
-
ADL
27h 08m
2 stops
Qantas Airways Logo
06:25 - 20:34
ADL
-
PHL
27h 39m
2 stops
$1,907Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
15:59 - 16:25
PHL
-
ADL
32h 56m
2 stops
Qantas Airways Logo
19:10 - 05:51
ADL
-
PHL
49h 11m
2 stops
$1,917Qantas Airways
Wed, 4 Mar - Sun, 8 Mar
Qantas Airways Logo
15:54 - 10:55
PHL
-
ADL
28h 31m
2 stops
Qantas Airways Logo
20:00 - 18:54
ADL
-
PHL
36h 24m
2 stops
$1,929Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
15:44 - 18:15
PHL
-
ADL
36h 01m
2 stops
Qantas Airways Logo
20:00 - 18:54
ADL
-
PHL
36h 24m
2 stops
$1,960Qantas Airways
Tue, 24 Mar - Fri, 10 Apr
Qantas Airways Logo
19:17 - 10:55
PHL
-
ADL
48h 08m
2 stops
Qantas Airways Logo
12:35 - 05:45
ADL
-
PHL
31h 40m
2 stops
$2,021Qantas Airways
Sat, 7 Mar - Fri, 13 Mar
Air New Zealand Logo
09:25 - 10:55
PHL
-
ADL
36h 00m
2 stops
Air New Zealand Logo
12:05 - 22:25
ADL
-
PHL
23h 50m
2 stops
$2,205Air New Zealand
Fri, 7 Aug - Fri, 14 Aug
Air New Zealand Logo
09:25 - 11:55
PHL
-
ADL
37h 00m
2 stops
Air New Zealand Logo
12:05 - 11:58
ADL
-
PHL
37h 23m
2 stops
$2,214Air New Zealand
Fri, 22 May - Fri, 29 May
Qatar Airways Logo
19:40 - 12:40
PHL
-
ADL
49h 30m
2 stops
Qatar Airways Logo
22:00 - 09:00
ADL
-
PHL
49h 30m
1 stop
$2,367Qatar Airways
Sat, 7 Mar - Sun, 15 Mar
Air New Zealand Logo
18:23 - 19:05
PHL
-
ADL
35h 12m
2 stops
Air New Zealand Logo
07:00 - 01:29
ADL
-
PHL
31h 59m
3 stops
$2,535Air New Zealand
Fri, 22 May - Fri, 29 May

Qatar Airways flights from Philadelphia to Adelaide

Our best Qatar Airways deals on Philadelphia to Adelaide flight tickets
Qatar Airways
7 Mar
PHL19:40Philadelphia
49h 30m
2 stops
ADL12:40Adelaide
15 Mar
ADL22:00Adelaide
49h 30m
1 stop
PHL09:00Philadelphia
$2,367
Qatar Airways
7 Mar
PHL19:40Philadelphia
29h 55m
1 stop
ADL17:05Adelaide
13 Mar
ADL18:20Adelaide
53h 10m
2 stops
PHL09:00Philadelphia
$2,593
Qatar Airways
25 Feb
PHL19:40Philadelphia
35h 05m
2 stops
ADL22:15Adelaide
1 Mar
ADL22:00Adelaide
50h 30m
1 stop
PHL09:00Philadelphia
$2,624

United Airlines flights from Philadelphia to Adelaide

Our best United Airlines deals on Philadelphia to Adelaide flight tickets
United Airlines
4 Mar
PHL08:00Philadelphia
35h 25m
2 stops
ADL10:55Adelaide
8 Mar
ADL06:10Adelaide
31h 52m
3 stops
PHL22:32Philadelphia
$4,044
United Airlines
4 Apr
PHL18:21Philadelphia
27h 04m
2 stops
ADL10:55Adelaide
11 Apr
ADL20:00Adelaide
34h 45m
2 stops
PHL17:15Philadelphia
$5,002
United Airlines
25 Feb
PHL08:35Philadelphia
36h 55m
2 stops
ADL13:00Adelaide
1 Mar
ADL06:10Adelaide
32h 50m
3 stops
PHL23:30Philadelphia
$6,479

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 19 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

Sat 7/3

19:17-10:55

2 stops48h 08m

Adelaide

Sun 15/3

19:10-05:51

2 stops49h 11m

$1,871

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

17:17-10:55

2 stops27h 08m

Adelaide

Fri 10/4

06:25-20:34

2 stops27h 39m

$1,907

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Wed 4/3

15:59-16:25

2 stops32h 56m

Adelaide

Sun 8/3

19:10-05:51

2 stops49h 11m

$1,917

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

15:54-10:55

2 stops28h 31m

Adelaide

Fri 10/4

20:00-18:54

2 stops36h 24m

$1,929

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 24/3

15:44-18:15

2 stops36h 01m

Adelaide

Fri 10/4

20:00-18:54

2 stops36h 24m

$1,960

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 7/3

19:17-10:55

2 stops48h 08m

Adelaide

Fri 13/3

12:35-05:45

2 stops31h 40m

$2,021

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 7/8

09:25-10:55

2 stops36h 00m

Adelaide

Fri 14/8

12:05-22:25

2 stops23h 50m

$2,205

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 22/5

09:25-11:55

2 stops37h 00m

Adelaide

Fri 29/5

12:05-11:58

2 stops37h 23m

$2,214

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 7/3

19:40-12:40

2 stops49h 30m

Adelaide

Sun 15/3

22:00-09:00

1 stop49h 30m

$2,367

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Fri 22/5

18:23-19:05

2 stops35h 12m

Adelaide

Fri 29/5

07:00-01:29

3 stops31h 59m

$2,535

Flights are sorted by cheapest return 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 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 03m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 03m
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 03m.

  • 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.

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Philadelphia from Adelaide. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.

An easier way to manage your Adelaide trip

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