Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Allentown to Sydney from $737

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 5/24. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Allentown to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:20 am - 6:50 am
ABE
-
SYD
34h 30m
2 stops
Delta Logo
9:15 am - 11:08 pm
SYD
-
ABE
27h 53m
2 stops
$1,656Delta
Wed, Jun 10 - Tue, Jun 16
Delta Logo
1:12 pm - 6:50 am
ABE
-
SYD
27h 38m
2 stops
Delta Logo
9:15 am - 11:08 pm
SYD
-
ABE
27h 53m
2 stops
$2,114Delta
Wed, Jun 10 - Tue, Jun 16
Qatar Airways Logo
6:00 am - 7:10 am
ABE
-
SYD
58h 10m
2 stops
Qatar Airways Logo
3:50 pm - 10:15 pm
SYD
-
ABE
45h 25m
2 stops
$2,261Qatar Airways
Sat, Oct 17 - Wed, Oct 21
Multiple Airlines Logo
6:00 am - 5:30 pm
ABE
-
SYD
45h 30m
2 stops
Multiple Airlines Logo
12:00 pm - 11:19 pm
SYD
-
ABE
49h 19m
3 stops
$3,226Multiple Airlines
Wed, Jun 10 - Tue, Jun 16
Delta Logo
1:00 pm - 8:30 am
ABE
-
SYD
27h 30m
2 stops
Delta Logo
10:40 am - 10:46 pm
SYD
-
ABE
28h 06m
2 stops
$11,551Delta
Tue, Nov 3 - Wed, Nov 11
United Airlines Logo
2:23 pm - 6:55 am
ABE
-
SYD
26h 32m
3 stops
United Airlines Logo
10:20 am - 9:07 pm
SYD
-
ABE
24h 47m
3 stops
$11,765United Airlines
Wed, Jun 10 - Tue, Jun 16
United Airlines Logo
2:23 pm - 6:55 am
ABE
-
SYD
26h 32m
3 stops
United Airlines Logo
10:20 am - 9:07 pm
SYD
-
ABE
24h 47m
3 stops
$11,766United Airlines
Wed, Jun 10 - Tue, Jun 16
Multiple Airlines Logo
6:00 am - 6:50 pm
ABE
-
SYD
44h 50m
2 stops
Multiple Airlines Logo
2:00 pm - 10:15 pm
SYD
-
ABE
48h 15m
3 stops
$12,360Multiple Airlines
Tue, Nov 3 - Wed, Nov 11

United Airlines flights from Allentown to Sydney

Our best United Airlines deals on Allentown to Sydney flight tickets
United Airlines
Jun 10
ABE2:23 pmAllentown-Bethlehem
26h 32m
3 stops
SYD6:55 amSydney Kingsford Smith
Jun 16
SYD10:20 amSydney Kingsford Smith
24h 47m
3 stops
ABE9:07 pmAllentown-Bethlehem
$11,765
United Airlines
Jun 10
ABE2:23 pmAllentown-Bethlehem
26h 32m
3 stops
SYD6:55 amSydney Kingsford Smith
Jun 16
SYD10:20 amSydney Kingsford Smith
24h 47m
3 stops
ABE9:07 pmAllentown-Bethlehem
$11,766

Delta flights from Allentown to Sydney

Our best Delta deals on Allentown to Sydney flight tickets
Delta
Jun 10
ABE6:20 amAllentown-Bethlehem
34h 30m
2 stops
SYD6:50 amSydney Kingsford Smith
Jun 16
SYD9:15 amSydney Kingsford Smith
27h 53m
2 stops
ABE11:08 pmAllentown-Bethlehem
$1,656
Delta
Jun 10
ABE1:12 pmAllentown-Bethlehem
27h 38m
2 stops
SYD6:50 amSydney Kingsford Smith
Jun 16
SYD9:15 amSydney Kingsford Smith
27h 53m
2 stops
ABE11:08 pmAllentown-Bethlehem
$2,114
Delta
Nov 3
ABE1:00 pmAllentown-Bethlehem
27h 30m
2 stops
SYD8:30 amSydney Kingsford Smith
Nov 11
SYD10:40 amSydney Kingsford Smith
28h 06m
2 stops
ABE10:46 pmAllentown-Bethlehem
$11,551

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 May 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

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 6/10

6:20 am-6:50 am

2 stops34h 30m

Sydney Kingsford Smith

Tue 6/16

9:15 am-11:08 pm

2 stops27h 53m

$1,656

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 6/10

1:12 pm-6:50 am

2 stops27h 38m

Sydney Kingsford Smith

Tue 6/16

9:15 am-11:08 pm

2 stops27h 53m

$2,114

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 10/17

6:00 am-7:10 am

2 stops58h 10m

Sydney Kingsford Smith

Wed 10/21

3:50 pm-10:15 pm

2 stops45h 25m

$2,261

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 6/10

6:00 am-5:30 pm

2 stops45h 30m

Sydney Kingsford Smith

Tue 6/16

12:00 pm-11:19 pm

3 stops49h 19m

$3,226

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 11/3

1:00 pm-8:30 am

2 stops27h 30m

Sydney Kingsford Smith

Wed 11/11

10:40 am-10:46 pm

2 stops28h 06m

$11,551
Quickest round-trip

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 6/10

2:23 pm-6:55 am

3 stops26h 32m

Sydney Kingsford Smith

Tue 6/16

10:20 am-9:07 pm

3 stops24h 47m

$11,765

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 6/10

2:23 pm-6:55 am

3 stops26h 32m

Sydney Kingsford Smith

Tue 6/16

10:20 am-9:07 pm

3 stops24h 47m

$11,766

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 11/3

6:00 am-6:50 pm

2 stops44h 50m

Sydney Kingsford Smith

Wed 11/11

2:00 pm-10:15 pm

3 stops48h 15m

$12,360
Cheapest one-way
Quickest one-way

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 5/24

12:59 pm-6:50 am

2 stops27h 51m

$737

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 5/23

12:59 pm-6:50 am

2 stops27h 51m

$802

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 airline that flies from Allentown-Bethlehem to Sydney Kingsford Smith?

Delta is the most popular carrier operating from Allentown-Bethlehem to Sydney Kingsford Smith

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 44% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 6 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

34h 30m

Direct flights

None
The fastest flight from Allentown to Sydney takes 34h 30m
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. 34h 30m 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
Leura
Randwick
Lithgow
Manly
Coogee
Cronulla
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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 6/14
Sun 6/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia