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Cheap flights from Allentown to Sydney from $847

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to Sydney departing on 7/26. 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

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Find the cheapest flights from Allentown to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 6:55 am
ABE
-
SYD
34h 40m
2 stops
United Airlines Logo
9:30 am - 9:07 pm
SYD
-
ABE
25h 37m
2 stops
$1,633United Airlines
Tue, Jun 16 - Mon, Jul 6
United Airlines Logo
10:38 am - 6:55 am
ABE
-
SYD
30h 17m
2 stops
United Airlines Logo
10:20 am - 9:38 am
SYD
-
ABE
37h 18m
2 stops
$2,282United Airlines
Wed, May 27 - Sun, May 31
United Airlines Logo
6:15 am - 7:00 am
ABE
-
SYD
34h 45m
2 stops
United Airlines Logo
10:20 am - 9:38 am
SYD
-
ABE
37h 18m
2 stops
$2,283United Airlines
Wed, May 27 - Sun, May 31
United Airlines Logo
2:25 pm - 6:55 am
ABE
-
SYD
26h 30m
2 stops
United Airlines Logo
10:20 am - 9:48 am
SYD
-
ABE
37h 28m
2 stops
$2,284United Airlines
Wed, May 6 - Sun, May 10

United Airlines flights from Allentown to Sydney

Our best United Airlines deals on Allentown to Sydney flight tickets
United Airlines
Jun 16
ABE6:15 amAllentown-Bethlehem
34h 40m
2 stops
SYD6:55 amSydney Kingsford Smith
Jul 6
SYD9:30 amSydney Kingsford Smith
25h 37m
2 stops
ABE9:07 pmAllentown-Bethlehem
$1,633
United Airlines
May 27
ABE10:38 amAllentown-Bethlehem
30h 17m
2 stops
SYD6:55 amSydney Kingsford Smith
May 31
SYD10:20 amSydney Kingsford Smith
37h 18m
2 stops
ABE9:38 amAllentown-Bethlehem
$2,282
United Airlines
May 27
ABE6:15 amAllentown-Bethlehem
34h 45m
2 stops
SYD7:00 amSydney Kingsford Smith
May 31
SYD10:20 amSydney Kingsford Smith
37h 18m
2 stops
ABE9:38 amAllentown-Bethlehem
$2,283

American Airlines flights from Allentown to Sydney

Our best American Airlines deals on Allentown to Sydney flight tickets
American Airlines
Mar 24
ABE12:45 pmAllentown-Bethlehem
29h 15m
2 stops
SYD9:00 amSydney Kingsford Smith
Mar 31
SYD9:25 pmSydney Kingsford Smith
29h 05m
2 stops
ABE11:30 amAllentown-Bethlehem
$2,915
American Airlines
Mar 24
ABE12:45 pmAllentown-Bethlehem
27h 10m
2 stops
SYD6:55 amSydney Kingsford Smith
Mar 31
SYD1:00 pmSydney Kingsford Smith
25h 31m
3 stops
ABE11:31 pmAllentown-Bethlehem
$14,052
American Airlines
Mar 27
ABE12:00 pmAllentown-Bethlehem
29h 05m
2 stops
SYD8:05 amSydney Kingsford Smith
May 23
SYD9:10 amSydney Kingsford Smith
28h 09m
2 stops
ABE11:19 pmAllentown-Bethlehem
$21,644

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 March 22, 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

Cheapest round-trip
Quickest round-trip

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 6/16

6:15 am-6:55 am

2 stops34h 40m

Sydney Kingsford Smith

Mon 7/6

9:30 am-9:07 pm

2 stops25h 37m

$1,633

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 5/27

10:38 am-6:55 am

2 stops30h 17m

Sydney Kingsford Smith

Sun 5/31

10:20 am-9:38 am

2 stops37h 18m

$2,282

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 5/27

6:15 am-7:00 am

2 stops34h 45m

Sydney Kingsford Smith

Sun 5/31

10:20 am-9:38 am

2 stops37h 18m

$2,283

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 5/6

2:25 pm-6:55 am

2 stops26h 30m

Sydney Kingsford Smith

Sun 5/10

10:20 am-9:48 am

2 stops37h 28m

$2,284
Cheapest one-way
Quickest one-way

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 7/26

1:00 pm-6:50 am

2 stops27h 50m

$847

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 8/1

5:41 pm-6:55 am

2 stops47h 14m

$875

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 7/30

6:30 am-6:50 am

2 stops34h 20m

$912

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 7/29

6:15 am-8:20 am

3 stops36h 05m

$1,101

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 7/28

6:15 am-8:20 am

3 stops60h 05m

$1,129

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 8/1

6:00 am-8:20 am

3 stops36h 20m

$1,166

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 is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Allentown to Sydney is on a Sunday when prices can be found for as low as $1,345. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,932.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Allentown to Sydney in the evening for as low as $1,469. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the afternoon, with an average ticket price of $1,796. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

29h 15m

Direct flights

None
The fastest flight from Allentown to Sydney takes 29h 15m
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. 29h 15m 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
Parramatta
Bondi Beach
Katoomba
Wollongong
Penrith
Manly
Randwick
Coogee
Leura
Lithgow
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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