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Cheap flights from Allentown to Sydney from $1,487

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Sydney departing on 3/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:31 am - 6:20 am
ABE
-
SYD
28h 49m
2 stops
United Airlines Logo
11:50 am - 8:50 pm
SYD
-
ABE
24h 00m
2 stops
$1,487United Airlines
Fri, Mar 20 - Fri, Mar 27
United Airlines Logo
10:31 am - 9:15 am
ABE
-
SYD
31h 44m
2 stops
United Airlines Logo
11:50 am - 8:50 pm
SYD
-
ABE
24h 00m
2 stops
$1,488United Airlines
Thu, Mar 19 - Thu, Mar 26
United Airlines Logo
10:36 am - 9:05 am
ABE
-
SYD
30h 29m
2 stops
United Airlines Logo
11:50 am - 8:53 pm
SYD
-
ABE
25h 03m
2 stops
$2,225United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
6:28 am - 7:00 am
ABE
-
SYD
32h 32m
2 stops
United Airlines Logo
2:00 pm - 8:53 pm
SYD
-
ABE
22h 53m
2 stops
$2,226United Airlines
Wed, Feb 18 - Sun, Feb 22
Multiple Airlines Logo
5:40 pm - 6:20 am
ABE
-
SYD
46h 40m
2 stops
Multiple Airlines Logo
7:55 am - 10:56 pm
SYD
-
ABE
53h 01m
2 stops
$2,848Multiple Airlines
Mon, Jun 22 - Wed, Jul 8
Multiple Airlines Logo
6:00 am - 5:10 pm
ABE
-
SYD
45h 10m
2 stops
Multiple Airlines Logo
12:00 pm - 10:15 pm
SYD
-
ABE
48h 15m
3 stops
$3,861Multiple Airlines
Mon, Jun 22 - Wed, Jul 8
Delta Logo
12:52 pm - 6:50 am
ABE
-
SYD
27h 58m
2 stops
Delta Logo
9:15 am - 10:56 pm
SYD
-
ABE
27h 41m
2 stops
$4,926Delta
Mon, Apr 13 - Fri, Jun 12
Delta Logo
1:00 pm - 6:50 am
ABE
-
SYD
27h 50m
2 stops
Delta Logo
9:15 am - 10:56 pm
SYD
-
ABE
27h 41m
2 stops
$7,187Delta
Mon, Jun 22 - Wed, Jul 8
American Airlines Logo
12:00 pm - 6:55 am
ABE
-
SYD
27h 55m
2 stops
American Airlines Logo
1:05 pm - 12:29 am
SYD
-
ABE
26h 24m
3 stops
$14,063American Airlines
Thu, Mar 19 - Thu, Mar 26
American Airlines Logo
12:00 pm - 6:55 am
ABE
-
SYD
27h 55m
2 stops
American Airlines Logo
1:05 pm - 12:29 am
SYD
-
ABE
26h 24m
3 stops
$14,099American Airlines
Fri, Mar 20 - Fri, Mar 27

United Airlines flights from Allentown to Sydney

Our best United Airlines deals on Allentown to Sydney flight tickets
United Airlines
Mar 20
ABE10:31 amAllentown-Bethlehem
28h 49m
2 stops
SYD6:20 amSydney Kingsford Smith
Mar 27
SYD11:50 amSydney Kingsford Smith
24h 00m
2 stops
ABE8:50 pmAllentown-Bethlehem
$1,487
United Airlines
Mar 19
ABE10:31 amAllentown-Bethlehem
31h 44m
2 stops
SYD9:15 amSydney Kingsford Smith
Mar 26
SYD11:50 amSydney Kingsford Smith
24h 00m
2 stops
ABE8:50 pmAllentown-Bethlehem
$1,488
United Airlines
Feb 18
ABE10:36 amAllentown-Bethlehem
30h 29m
2 stops
SYD9:05 amSydney Kingsford Smith
Feb 22
SYD11:50 amSydney Kingsford Smith
25h 03m
2 stops
ABE8:53 pmAllentown-Bethlehem
$2,225

American Airlines flights from Allentown to Sydney

Our best American Airlines deals on Allentown to Sydney flight tickets
American Airlines
Mar 19
ABE12:00 pmAllentown-Bethlehem
27h 55m
2 stops
SYD6:55 amSydney Kingsford Smith
Mar 26
SYD1:05 pmSydney Kingsford Smith
26h 24m
3 stops
ABE12:29 amAllentown-Bethlehem
$14,063
American Airlines
Mar 20
ABE12:00 pmAllentown-Bethlehem
27h 55m
2 stops
SYD6:55 amSydney Kingsford Smith
Mar 27
SYD1:05 pmSydney Kingsford Smith
26h 24m
3 stops
ABE12:29 amAllentown-Bethlehem
$14,099

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to Sydney 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 4, 2026.
Use the filters below to find and compare flights from Allentown to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 3/20

10:31 am-6:20 am

2 stops28h 49m

Sydney Kingsford Smith

Fri 3/27

11:50 am-8:50 pm

2 stops24h 00m

$1,487

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 3/19

10:31 am-9:15 am

2 stops31h 44m

Sydney Kingsford Smith

Thu 3/26

11:50 am-8:50 pm

2 stops24h 00m

$1,488

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 2/18

10:36 am-9:05 am

2 stops30h 29m

Sydney Kingsford Smith

Sun 2/22

11:50 am-8:53 pm

2 stops25h 03m

$2,225

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 2/18

6:28 am-7:00 am

2 stops32h 32m

Sydney Kingsford Smith

Sun 2/22

2:00 pm-8:53 pm

2 stops22h 53m

$2,226

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 6/22

5:40 pm-6:20 am

2 stops46h 40m

Sydney Kingsford Smith

Wed 7/8

7:55 am-10:56 pm

2 stops53h 01m

$2,848

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 6/22

6:00 am-5:10 pm

2 stops45h 10m

Sydney Kingsford Smith

Wed 7/8

12:00 pm-10:15 pm

3 stops48h 15m

$3,861

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 4/13

12:52 pm-6:50 am

2 stops27h 58m

Sydney Kingsford Smith

Fri 6/12

9:15 am-10:56 pm

2 stops27h 41m

$4,926

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 6/22

1:00 pm-6:50 am

2 stops27h 50m

Sydney Kingsford Smith

Wed 7/8

9:15 am-10:56 pm

2 stops27h 41m

$7,187

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 3/19

12:00 pm-6:55 am

2 stops27h 55m

Sydney Kingsford Smith

Thu 3/26

1:05 pm-12:29 am

3 stops26h 24m

$14,063

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 3/20

12:00 pm-6:55 am

2 stops27h 55m

Sydney Kingsford Smith

Fri 3/27

1:05 pm-12:29 am

3 stops26h 24m

$14,099

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sydney from

How to get the cheapest flight ticket from Allentown to Sydney

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 airlines fly to Sydney?

United Airlines, Air Canada and Qantas Airways are the top three most popular airlines that fly to Sydney from Allentown according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 7 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When to book flights from Allentown to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to Sydney (ABE to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to Sydney

Fastest flight time

27h 58m

Direct flights

None
The fastest flight from Allentown to Sydney takes 27h 58m
There are no direct flights from Allentown to Sydney. There are no popular flight routes from Allentown to Sydney.
Search flight deals

  • How far is Allentown-Bethlehem to Sydney Kingsford Smith by plane?

    There are 9851.4 mi between Allentown-Bethlehem and Sydney Kingsford Smith. 27h 58m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Allentown-Bethlehem Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Allentown-Bethlehem Airport to Sydney Kingsford Smith Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The necessary travel and health documents for your Sydney Kingsford Smith 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 Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Parramatta
Katoomba
Wollongong
Randwick
Penrith
Coogee
Manly
Lithgow
Leura
Cronulla
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to Sydney?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to Sydney. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from Allentown which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Allentown to Sydney?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Allentown to Sydney.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Allentown and alert you when they change.

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