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Cheap flights from Pennsylvania to Adelaide from $539

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Adelaide departing on 3/7. 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

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Find the cheapest flights from Pennsylvania to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:00 pm - 11:50 am
EWR
-
ADL
28h 20m
2 stops
Air Canada Logo
8:00 pm - 4:40 pm
ADL
-
EWR
34h 10m
2 stops
$1,075Air Canada
Sun, Apr 12 - Thu, Apr 30
Air Canada Logo
11:05 am - 11:50 am
EWR
-
ADL
35h 15m
3 stops
Air Canada Logo
7:00 pm - 4:40 pm
ADL
-
EWR
35h 10m
2 stops
$1,084Air Canada
Sun, Apr 12 - Thu, Apr 30
Multiple Airlines Logo
4:10 pm - 1:55 pm
IAD
-
ADL
32h 15m
3 stops
Multiple Airlines Logo
5:15 pm - 6:22 am
ADL
-
IAD
50h 37m
2 stops
$1,099Multiple Airlines
Tue, Jun 16 - Wed, Jul 22
Multiple Airlines Logo
2:20 pm - 12:40 pm
EWR
-
ADL
31h 50m
3 stops
Multiple Airlines Logo
8:00 pm - 9:46 pm
ADL
-
EWR
39h 16m
3 stops
$1,146Multiple Airlines
Thu, Mar 26 - Tue, Apr 7
Singapore Airlines Logo
4:10 pm - 1:55 pm
IAD
-
ADL
32h 15m
2 stops
Singapore Airlines Logo
8:00 pm - 6:22 am
ADL
-
IAD
47h 52m
2 stops
$1,147Singapore Airlines
Tue, Jun 16 - Wed, Jul 22
United Airlines Logo
9:15 pm - 9:20 am
LGA
-
ADL
69h 35m
2 stops
United Airlines Logo
2:15 pm - 11:18 am
ADL
-
LGA
35h 33m
2 stops
$1,149United Airlines
Sat, Mar 21 - Sat, Mar 28
Singapore Airlines Logo
3:30 pm - 11:50 am
LGA
-
ADL
30h 50m
2 stops
Singapore Airlines Logo
8:00 pm - 10:36 pm
ADL
-
LGA
40h 06m
2 stops
$1,155Singapore Airlines
Sun, Apr 12 - Thu, Apr 30
Qantas Airways Logo
7:21 pm - 11:05 am
IAD
-
ADL
26h 14m
2 stops
Qantas Airways Logo
6:00 am - 6:31 pm
ADL
-
IAD
26h 01m
2 stops
$1,245Qantas Airways
Mon, Jun 15 - Tue, Jul 21
Qantas Airways Logo
7:21 pm - 11:05 am
IAD
-
ADL
26h 14m
2 stops
Qantas Airways Logo
6:25 am - 6:31 pm
ADL
-
IAD
25h 36m
2 stops
$1,248Qantas Airways
Mon, Jun 15 - Tue, Jul 21
United Airlines Logo
12:55 pm - 8:30 am
DCA
-
ADL
29h 05m
2 stops
United Airlines Logo
2:15 pm - 11:51 pm
ADL
-
DCA
24h 06m
2 stops
$1,312United Airlines
Sat, Mar 21 - Sat, Mar 28

United Airlines flights from Pennsylvania to Adelaide

Our best United Airlines deals on Pennsylvania to Adelaide flight tickets
United Airlines
Mar 21
LGA9:15 pmNew York LaGuardia
69h 35m
2 stops
ADL9:20 amAdelaide
Mar 28
ADL2:15 pmAdelaide
35h 33m
2 stops
LGA11:18 amNew York LaGuardia
$1,149
United Airlines
Mar 21
EWR6:10 pmNewark
23h 50m
1 stop
ADL8:30 amAdelaide
Mar 28
ADL2:15 pmAdelaide
31h 43m
1 stop
EWR7:28 amNewark
$1,176
United Airlines
Mar 21
EWR2:00 pmNewark
28h 00m
1 stop
ADL8:30 amAdelaide
Mar 28
ADL2:15 pmAdelaide
31h 03m
2 stops
EWR6:48 amNewark
$1,180

Cathay Pacific flights from Pennsylvania to Adelaide

Our best Cathay Pacific deals on Pennsylvania to Adelaide flight tickets
Cathay Pacific
Mar 19
DCA11:57 amWashington, D.C. Reagan-National
37h 58m
3 stops
ADL4:25 pmAdelaide
Mar 26
ADL10:10 amAdelaide
45h 47m
3 stops
DCA5:27 pmWashington, D.C. Reagan-National
$2,392
Cathay Pacific
Feb 16
JFK1:40 pmNew York John F Kennedy Intl
29h 20m
1 stop
ADL10:30 amAdelaide
Mar 9
ADL6:25 amAdelaide
37h 50m
2 stops
JFK5:45 amNew York John F Kennedy Intl
$7,662

momondo Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 February 7, 2026.
Use the filters below to find and compare flights from Pennsylvania to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

NewarkAdelaide

EWR - ADL

EWRADL

Newark

Sun 4/12

6:00 pm-11:50 am

2 stops28h 20m

Adelaide

Thu 4/30

8:00 pm-4:40 pm

2 stops34h 10m

$1,075

NewarkAdelaide

EWR - ADL

EWRADL

Newark

Sun 4/12

11:05 am-11:50 am

3 stops35h 15m

Adelaide

Thu 4/30

7:00 pm-4:40 pm

2 stops35h 10m

$1,084

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 6/16

4:10 pm-1:55 pm

3 stops32h 15m

Adelaide

Wed 7/22

5:15 pm-6:22 am

2 stops50h 37m

$1,099

NewarkAdelaide

EWR - ADL

EWRADL

Newark

Thu 3/26

2:20 pm-12:40 pm

3 stops31h 50m

Adelaide

Tue 4/7

8:00 pm-9:46 pm

3 stops39h 16m

$1,146

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 6/16

4:10 pm-1:55 pm

2 stops32h 15m

Adelaide

Wed 7/22

8:00 pm-6:22 am

2 stops47h 52m

$1,147

New YorkAdelaide

LGA - ADL

LGAADL

New York LaGuardia

Sat 3/21

9:15 pm-9:20 am

2 stops69h 35m

Adelaide

Sat 3/28

2:15 pm-11:18 am

2 stops35h 33m

$1,149

New YorkAdelaide

LGA - ADL

LGAADL

New York LaGuardia

Sun 4/12

3:30 pm-11:50 am

2 stops30h 50m

Adelaide

Thu 4/30

8:00 pm-10:36 pm

2 stops40h 06m

$1,155

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 6/15

7:21 pm-11:05 am

2 stops26h 14m

Adelaide

Tue 7/21

6:00 am-6:31 pm

2 stops26h 01m

$1,245

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Mon 6/15

7:21 pm-11:05 am

2 stops26h 14m

Adelaide

Tue 7/21

6:25 am-6:31 pm

2 stops25h 36m

$1,248

Washington, D.C.Adelaide

DCA - ADL

DCAADL

Washington, D.C. Reagan-National

Sat 3/21

12:55 pm-8:30 am

2 stops29h 05m

Adelaide

Sat 3/28

2:15 pm-11:51 pm

2 stops24h 06m

$1,312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Adelaide from

How to get the cheapest flight ticket from Pennsylvania 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 Pennsylvania to Adelaide?

Qantas Airways is the most popular carrier operating from Pennsylvania to Adelaide

Cheap Pennsylvania to Adelaide flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Adelaide

Fastest flight time

26h 25m

Direct flights

None
The fastest flight from Pennsylvania to Adelaide takes 26h 25m
There are no direct flights from Pennsylvania to Adelaide. There are no popular flight routes from Pennsylvania to Adelaide.
Search flight deals

  • When did momondo last update prices for flights from Pennsylvania to Adelaide Airport?

    Prices for flights from Pennsylvania to Adelaide Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Pennsylvania to Adelaide Airport?

  • How old do you have to be to fly from Pennsylvania to Adelaide Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania 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.

Best airlines flying from Pennsylvania to Adelaide

Compare and see reviews for airlines that fly from Pennsylvania to Adelaide with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $647Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $787Free CancellationRating
7.5
987 reviews
Search Qantas Airways flights

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 Pennsylvania 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 Pennsylvania.

Can I find flights from Pennsylvania to Adelaide with flexible booking policies on momondo?

Yes. All flights to Adelaide from Pennsylvania on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Pennsylvania to Adelaide?

momondo provides multiple filters to help you find the best flight to Adelaide from Pennsylvania. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Pennsylvania to Adelaide right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Pennsylvania to Adelaide flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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