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Cheap flights from Philadelphia to Adelaide from $1,993

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 8/8. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Philadelphia to Adelaide

Cheap return flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
21:30 - 21:10
PHL
-
ADL
34h 10m
2 stops
Qatar Airways Logo
22:00 - 15:05
ADL
-
PHL
30h 35m
1 stop
$1,993Qatar Airways
Sat, 8 Aug - Sat, 15 Aug
Qatar Airways Logo
21:30 - 07:00
PHL
-
ADL
44h 00m
2 stops
Qatar Airways Logo
12:15 - 15:05
ADL
-
PHL
40h 20m
2 stops
$2,144Qatar Airways
Sat, 8 Aug - Sat, 15 Aug
Qantas Airways Logo
12:25 - 16:25
PHL
-
ADL
36h 30m
2 stops
Qantas Airways Logo
19:00 - 14:28
ADL
-
PHL
34h 58m
2 stops
$3,323Qantas Airways
Tue, 22 Dec - Sun, 17 Jan
Qantas Airways Logo
12:25 - 16:25
PHL
-
ADL
36h 30m
2 stops
Qantas Airways Logo
07:05 - 20:16
ADL
-
PHL
28h 41m
2 stops
$3,387Qantas Airways
Tue, 22 Dec - Sat, 16 Jan
Qantas Airways Logo
12:25 - 16:25
PHL
-
ADL
36h 30m
2 stops
Qantas Airways Logo
19:00 - 19:06
ADL
-
PHL
39h 36m
2 stops
$3,395Qantas Airways
Tue, 22 Dec - Fri, 15 Jan
Qantas Airways Logo
12:25 - 16:25
PHL
-
ADL
36h 30m
2 stops
Qantas Airways Logo
07:05 - 20:16
ADL
-
PHL
28h 41m
2 stops
$3,401Qantas Airways
Tue, 22 Dec - Sun, 10 Jan
United Airlines Logo
18:35 - 10:55
PHL
-
ADL
48h 50m
3 stops
United Airlines Logo
14:55 - 07:45
ADL
-
PHL
32h 20m
1 stop
$3,418United Airlines
Tue, 22 Dec - Wed, 13 Jan
United Airlines Logo
18:35 - 13:55
PHL
-
ADL
51h 50m
3 stops
United Airlines Logo
08:40 - 21:20
ADL
-
PHL
28h 10m
2 stops
$3,429United Airlines
Tue, 22 Dec - Tue, 19 Jan
United Airlines Logo
18:35 - 10:55
PHL
-
ADL
48h 50m
3 stops
United Airlines Logo
06:10 - 16:58
ADL
-
PHL
26h 18m
2 stops
$3,433United Airlines
Tue, 22 Dec - Mon, 11 Jan
Qatar Airways Logo
21:30 - 15:00
PHL
-
ADL
28h 00m
1 stop
Qatar Airways Logo
22:00 - 15:05
ADL
-
PHL
30h 35m
1 stop
$3,472Qatar Airways
Sat, 8 Aug - Sat, 15 Aug

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Qatar Airways flights from Philadelphia to Adelaide

Our best Qatar Airways deals on Philadelphia to Adelaide flight tickets
Qatar Airways
20 Oct
PHL21:30Philadelphia
32h 15m
2 stops
ADL20:15Adelaide
3 Nov
ADL22:00Adelaide
32h 10m
1 stop
PHL14:40Philadelphia
$1,921
Qatar Airways
8 Aug
PHL21:30Philadelphia
34h 10m
2 stops
ADL21:10Adelaide
15 Aug
ADL22:00Adelaide
30h 35m
1 stop
PHL15:05Philadelphia
$1,993
Qatar Airways
20 Oct
PHL21:30Philadelphia
32h 15m
2 stops
ADL20:15Adelaide
3 Nov
ADL18:20Adelaide
35h 50m
2 stops
PHL14:40Philadelphia
$1,998

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 27 June 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 return flight

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

21:30-21:10

2 stops34h 10m

Adelaide

Sat 15/8

22:00-15:05

1 stop30h 35m

$1,993

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

21:30-07:00

2 stops44h 00m

Adelaide

Sat 15/8

12:15-15:05

2 stops40h 20m

$2,144

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

12:25-16:25

2 stops36h 30m

Adelaide

Sun 17/1

19:00-14:28

2 stops34h 58m

$3,323

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

12:25-16:25

2 stops36h 30m

Adelaide

Sat 16/1

07:05-20:16

2 stops28h 41m

$3,387

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

12:25-16:25

2 stops36h 30m

Adelaide

Fri 15/1

19:00-19:06

2 stops39h 36m

$3,395

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

12:25-16:25

2 stops36h 30m

Adelaide

Sun 10/1

07:05-20:16

2 stops28h 41m

$3,401

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

18:35-10:55

3 stops48h 50m

Adelaide

Wed 13/1

14:55-07:45

1 stop32h 20m

$3,418

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

18:35-13:55

3 stops51h 50m

Adelaide

Tue 19/1

08:40-21:20

2 stops28h 10m

$3,429

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 22/12

18:35-10:55

3 stops48h 50m

Adelaide

Mon 11/1

06:10-16:58

2 stops26h 18m

$3,433
Fastest return journey

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

21:30-15:00

1 stop28h 00m

Adelaide

Sat 15/8

22:00-15:05

1 stop30h 35m

$3,472

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

34h 10m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 34h 10m
There are no direct flights from Philadelphia to Adelaide. There are no popular flight routes from Philadelphia to Adelaide.
Search flight deals

Frequently asked questions about flying from Philadelphia to Adelaide

  • 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 34h 10m.

  • 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.

Frequently asked questions about flying from Philadelphia to Adelaide

  • 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.

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