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Cheap flights from Allentown to Sydney from $1,354

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 9/29. 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 Allentown to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:25 pm - 7:05 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
26h 40m2 stops Charlotte Douglas Los Angeles
American Airlines Logo
1:00 pm - 11:25 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
25h 25m2 stops Dallas/Fort Worth Charlotte Douglas
$1,354American Airlines
Tue, Sep 29 - Tue, Oct 6
Delta Logo
6:30 am - 8:30 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
34h 00m2 stops Atlanta Hartsfield-Jackson Los Angeles
Delta Logo
10:40 am - 10:27 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
27h 47m2 stops Los Angeles Atlanta Hartsfield-Jackson
$1,383Delta
Tue, Nov 24 - Thu, Dec 3
United Airlines Logo
5:43 pm - 7:00 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
46h 17m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
9:20 am - 5:00 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
23h 40m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$1,398United Airlines
Sat, Oct 24 - Sat, Nov 7
United Airlines Logo
6:15 am - 9:05 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
34h 50m2 stops Chicago O'Hare Intl Los Angeles
United Airlines Logo
9:20 am - 4:56 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
23h 36m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$1,433United Airlines
Thu, Nov 26 - Thu, Dec 3
United Airlines Logo
6:15 am - 7:00 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
32h 45m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
11:50 am - 10:06 amSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
37h 16m2 stops San Francisco Chicago O'Hare Intl
$1,593United Airlines
Wed, Nov 11 - Wed, Mar 17
United Airlines Logo
6:15 am - 7:00 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
32h 45m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
10:20 am - 10:06 amSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
38h 46m2 stops Los Angeles Chicago O'Hare Intl
$1,714United Airlines
Thu, Nov 12 - Thu, Mar 18
Qatar Airways Logo
5:37 am - 6:50 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
57h 13m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
3:50 pm - 10:24 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
46h 34m2 stops Doha Hamad Intl Chicago O'Hare Intl
$2,236Qatar Airways
Wed, Nov 4 - Sun, Nov 8
Qatar Airways Logo
5:37 am - 6:50 amABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
57h 13m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
3:50 pm - 10:24 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
46h 34m2 stops Doha Hamad Intl Chicago O'Hare Intl
$2,237Qatar Airways
Wed, Nov 4 - Sun, Nov 8
Multiple Airlines Logo
9:13 am - 5:10 pmABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
41h 57m2 stops Chicago O'Hare Intl Doha Hamad Intl
Multiple Airlines Logo
5:00 pm - 10:12 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
44h 12m3 stops Brisbane Doha Hamad Intl Chicago O'Hare Intl
$2,330Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
5:37 am - 7:20 pmABE  Allentown-Bethlehem-SYD Sydney Kingsford Smith
45h 43m2 stops Chicago O'Hare Intl Doha Hamad Intl
Multiple Airlines Logo
6:30 pm - 10:59 pmSYD  Sydney Kingsford Smith-ABE Allentown-Bethlehem
44h 29m3 stops Brisbane Doha Hamad Intl Chicago O'Hare Intl
$2,363Multiple Airlines
Wed, Nov 25 - Thu, Dec 3

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United Airlines flights from Allentown to Sydney

Our best United Airlines deals on Allentown to Sydney flight tickets
United Airlines
Oct 24
ABE5:43 pmAllentown-Bethlehem
46h 17m
2 stops
SYD7:00 amSydney Kingsford Smith
Nov 7
SYD9:20 amSydney Kingsford Smith
23h 40m
2 stops
ABE5:00 pmAllentown-Bethlehem
$1,398
United Airlines
Nov 26
ABE6:15 amAllentown-Bethlehem
34h 50m
2 stops
SYD9:05 amSydney Kingsford Smith
Dec 3
SYD9:20 amSydney Kingsford Smith
23h 36m
2 stops
ABE4:56 pmAllentown-Bethlehem
$1,433
United Airlines
Nov 11
ABE6:15 amAllentown-Bethlehem
32h 45m
2 stops
SYD7:00 amSydney Kingsford Smith
Mar 17
SYD11:50 amSydney Kingsford Smith
37h 16m
2 stops
ABE10:06 amAllentown-Bethlehem
$1,593

Qatar Airways flights from Allentown to Sydney

Our best Qatar Airways deals on Allentown to Sydney flight tickets
Qatar Airways
Nov 4
ABE5:37 amAllentown-Bethlehem
57h 13m
2 stops
SYD6:50 amSydney Kingsford Smith
Nov 8
SYD3:50 pmSydney Kingsford Smith
46h 34m
2 stops
ABE10:24 pmAllentown-Bethlehem
$2,236
Qatar Airways
Nov 4
ABE5:37 amAllentown-Bethlehem
57h 13m
2 stops
SYD6:50 amSydney Kingsford Smith
Nov 8
SYD3:50 pmSydney Kingsford Smith
46h 34m
2 stops
ABE10:24 pmAllentown-Bethlehem
$2,237

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 August 15, 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 Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 9/29

2:25 pm-7:05 am

2 stops26h 40m

Sydney Kingsford Smith

Tue 10/6

1:00 pm-11:25 pm

2 stops25h 25m

$1,354

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 11/24

6:30 am-8:30 am

2 stops34h 00m

Sydney Kingsford Smith

Thu 12/3

10:40 am-10:27 pm

2 stops27h 47m

$1,383

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Sat 10/24

5:43 pm-7:00 am

2 stops46h 17m

Sydney Kingsford Smith

Sat 11/7

9:20 am-5:00 pm

2 stops23h 40m

$1,398

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Thu 11/26

6:15 am-9:05 am

2 stops34h 50m

Sydney Kingsford Smith

Thu 12/3

9:20 am-4:56 pm

2 stops23h 36m

$1,433

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Wed 11/11

6:15 am-7:00 am

2 stops32h 45m

Sydney Kingsford Smith

Wed 3/17

11:50 am-10:06 am

2 stops37h 16m

$1,593

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Thu 11/12

6:15 am-7:00 am

2 stops32h 45m

Sydney Kingsford Smith

Thu 3/18

10:20 am-10:06 am

2 stops38h 46m

$1,714

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Wed 11/4

5:37 am-6:50 am

2 stops57h 13m

Sydney Kingsford Smith

Sun 11/8

3:50 pm-10:24 pm

2 stops46h 34m

$2,236

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Wed 11/4

5:37 am-6:50 am

2 stops57h 13m

Sydney Kingsford Smith

Sun 11/8

3:50 pm-10:24 pm

2 stops46h 34m

$2,237

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 9/29

9:13 am-5:10 pm

2 stops41h 57m

Sydney Kingsford Smith

Tue 10/6

5:00 pm-10:12 pm

3 stops44h 12m

$2,330

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Wed 11/25

5:37 am-7:20 pm

2 stops45h 43m

Sydney Kingsford Smith

Thu 12/3

6:30 pm-10:59 pm

3 stops44h 29m

$2,363

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 38% 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

46h 17m

Direct flights

None
The fastest flight from Allentown to Sydney takes 46h 17m
There are no direct flights from Allentown to Sydney. There are no popular flight routes from Allentown to Sydney.
Search flight deals

Frequently asked questions about flying from Allentown to Sydney

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

    There are 9851.4 mi between Allentown-Bethlehem and Sydney Kingsford Smith. 46h 17m 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
Wollongong
Penrith
Katoomba
Leura
Cronulla
Randwick
Manly
Lithgow
Coogee
Terrigal
Charlestown
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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