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Cheap flights from Philadelphia to Adelaide from $1,692

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 20/10. 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 - 16:00
PHL
-
ADL
28h 00m
1 stop
Qatar Airways Logo
22:00 - 14:40
ADL
-
PHL
32h 10m
1 stop
$1,692Qatar Airways
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
21:30 - 16:00
PHL
-
ADL
28h 00m
1 stop
Multiple Airlines Logo
17:50 - 14:40
ADL
-
PHL
36h 20m
2 stops
$1,724Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
21:30 - 10:55
PHL
-
ADL
46h 55m
2 stops
Multiple Airlines Logo
19:50 - 14:40
ADL
-
PHL
34h 20m
2 stops
$1,859Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
07:00 - 13:55
PHL
-
ADL
40h 25m
3 stops
Multiple Airlines Logo
19:40 - 22:56
ADL
-
PHL
42h 46m
3 stops
$1,885Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
16:28 - 09:25
PHL
-
ADL
27h 27m
2 stops
Multiple Airlines Logo
17:15 - 18:34
ADL
-
PHL
38h 49m
2 stops
$2,490Multiple Airlines
Sat, 8 Aug - Sat, 15 Aug
Qatar Airways Logo
21:30 - 15:00
PHL
-
ADL
28h 00m
1 stop
Qatar Airways Logo
14:20 - 14:30
ADL
-
PHL
61h 40m
2 stops
$2,562Qatar Airways
Sat, 8 Aug - Sat, 15 Aug
Qatar Airways Logo
21:30 - 15:00
PHL
-
ADL
28h 00m
1 stop
Qatar Airways Logo
22:00 - 14:30
ADL
-
PHL
30h 00m
1 stop
$2,654Qatar Airways
Sat, 8 Aug - Sat, 15 Aug
Qantas Airways Logo
15:41 - 13:00
PHL
-
ADL
29h 49m
2 stops
Qantas Airways Logo
07:05 - 20:01
ADL
-
PHL
28h 26m
2 stops
$2,657Qantas Airways
Thu, 24 Dec - Fri, 1 Jan
Multiple Airlines Logo
09:51 - 09:25
PHL
-
ADL
34h 04m
3 stops
Multiple Airlines Logo
12:00 - 11:40
ADL
-
PHL
61h 10m
3 stops
$2,759Multiple Airlines
Sat, 8 Aug - Sat, 15 Aug
Qantas Airways Logo
15:06 - 09:25
PHL
-
ADL
28h 49m
2 stops
Qantas Airways Logo
14:20 - 18:34
ADL
-
PHL
41h 44m
3 stops
$3,409Qantas 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
28h 00m
1 stop
ADL16:00Adelaide
3 Nov
ADL22:00Adelaide
32h 10m
1 stop
PHL14:40Philadelphia
$1,692
Qatar Airways
8 Aug
PHL21:30Philadelphia
28h 00m
1 stop
ADL15:00Adelaide
15 Aug
ADL14:20Adelaide
61h 40m
2 stops
PHL14:30Philadelphia
$2,562
Qatar Airways
8 Aug
PHL21:30Philadelphia
28h 00m
1 stop
ADL15:00Adelaide
15 Aug
ADL22:00Adelaide
30h 00m
1 stop
PHL14:30Philadelphia
$2,654

Qantas Airways flights from Philadelphia to Adelaide

Our best Qantas Airways deals on Philadelphia to Adelaide flight tickets
Qantas Airways
24 Dec
PHL15:41Philadelphia
29h 49m
2 stops
ADL13:00Adelaide
1 Jan
ADL07:05Adelaide
28h 26m
2 stops
PHL20:01Philadelphia
$2,657
Qantas Airways
8 Aug
PHL15:06Philadelphia
28h 49m
2 stops
ADL09:25Adelaide
15 Aug
ADL14:20Adelaide
41h 44m
3 stops
PHL18:34Philadelphia
$3,409

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 12 July 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

Tue 20/10

21:30-16:00

1 stop28h 00m

Adelaide

Tue 3/11

22:00-14:40

1 stop32h 10m

$1,692

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 20/10

21:30-16:00

1 stop28h 00m

Adelaide

Tue 3/11

17:50-14:40

2 stops36h 20m

$1,724

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 20/10

21:30-10:55

2 stops46h 55m

Adelaide

Tue 3/11

19:50-14:40

2 stops34h 20m

$1,859

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Tue 20/10

07:00-13:55

3 stops40h 25m

Adelaide

Tue 3/11

19:40-22:56

3 stops42h 46m

$1,885

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

16:28-09:25

2 stops27h 27m

Adelaide

Sat 15/8

17:15-18:34

2 stops38h 49m

$2,490

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

21:30-15:00

1 stop28h 00m

Adelaide

Sat 15/8

14:20-14:30

2 stops61h 40m

$2,562
Fastest return journey

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

21:30-15:00

1 stop28h 00m

Adelaide

Sat 15/8

22:00-14:30

1 stop30h 00m

$2,654

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Thu 24/12

15:41-13:00

2 stops29h 49m

Adelaide

Fri 1/1

07:05-20:01

2 stops28h 26m

$2,657

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

09:51-09:25

3 stops34h 04m

Adelaide

Sat 15/8

12:00-11:40

3 stops61h 10m

$2,759

PhiladelphiaAdelaide

PHL - ADL

PHLADL

Philadelphia

Sat 8/8

15:06-09:25

2 stops28h 49m

Adelaide

Sat 15/8

14:20-18:34

3 stops41h 44m

$3,409

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 00m

Direct flights

None
The fastest flight from Philadelphia to Adelaide takes 28h 00m
There are no direct flights from Philadelphia to Adelaide. There are no popular flight routes from Philadelphia to Adelaide.
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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 28h 00m.

  • 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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