How do I get Price Alerts for flights from Allentown to Sydney?

Search flight deals from Allentown to Sydney . While viewing offers you’ll have the option to create a Price Alert.

How can I save money on flights from Allentown to Sydney with momondo?

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 updated daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 licence 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.

$2,122 Cheap Flights from Allentown to Sydney in 2026

1 adult

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Find the cheapest flights from Allentown to Sydney

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:31 - 06:20

ABE

SYD

28h 49m

2 stops

11:50 - 20:50

SYD

ABE

24h 00m

2 stops

$2,122United Airlines

Fri, 20 Mar - Fri, 27 Mar

10:31 - 09:15

ABE

SYD

31h 44m

2 stops

11:50 - 20:50

SYD

ABE

24h 00m

2 stops

$2,123United Airlines

Thu, 19 Mar - Thu, 26 Mar

10:36 - 09:05

ABE

SYD

30h 29m

2 stops

11:50 - 20:53

SYD

ABE

25h 03m

2 stops

$3,175United Airlines

Wed, 18 Feb - Sun, 22 Feb

06:28 - 07:00

ABE

SYD

32h 32m

2 stops

14:00 - 20:53

SYD

ABE

22h 53m

2 stops

$3,177United Airlines

Wed, 18 Feb - Sun, 22 Feb

12:52 - 06:50

ABE

SYD

27h 58m

2 stops

09:15 - 22:56

SYD

ABE

27h 41m

2 stops

$7,030Delta

Mon, 13 Apr - Fri, 12 Jun

12:00 - 06:55

ABE

SYD

27h 55m

2 stops

13:05 - 00:29

SYD

ABE

26h 24m

3 stops

$20,069American Airlines

Thu, 19 Mar - Thu, 26 Mar

12:00 - 06:55

ABE

SYD

27h 55m

2 stops

13:05 - 00:29

SYD

ABE

26h 24m

3 stops

$20,120American Airlines

Fri, 20 Mar - Fri, 27 Mar

United Airlines flights from Allentown to Sydney

Our best United Airlines deals on Allentown to Sydney flight tickets

United Airlines

20 Mar

ABE10:31Allentown-Bethlehem

28h 49m

2 stops

SYD06:20Sydney Kingsford Smith

27 Mar

SYD11:50Sydney Kingsford Smith

24h 00m

2 stops

ABE20:50Allentown-Bethlehem

$2,122

United Airlines

19 Mar

ABE10:31Allentown-Bethlehem

31h 44m

2 stops

SYD09:15Sydney Kingsford Smith

26 Mar

SYD11:50Sydney Kingsford Smith

24h 00m

2 stops

ABE20:50Allentown-Bethlehem

$2,123

United Airlines

18 Feb

ABE10:36Allentown-Bethlehem

30h 29m

2 stops

SYD09:05Sydney Kingsford Smith

22 Feb

SYD11:50Sydney Kingsford Smith

25h 03m

2 stops

ABE20:53Allentown-Bethlehem

$3,175

American Airlines flights from Allentown to Sydney

Our best American Airlines deals on Allentown to Sydney flight tickets

American Airlines

19 Mar

ABE12:00Allentown-Bethlehem

27h 55m

2 stops

SYD06:55Sydney Kingsford Smith

26 Mar

SYD13:05Sydney Kingsford Smith

26h 24m

3 stops

ABE00:29Allentown-Bethlehem

$20,069

American Airlines

20 Mar

ABE12:00Allentown-Bethlehem

27h 55m

2 stops

SYD06:55Sydney Kingsford Smith

27 Mar

SYD13:05Sydney Kingsford Smith

26h 24m

3 stops

ABE00:29Allentown-Bethlehem

$20,120

Fly from

Fly to

Route

Depart

Return

Price

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 20/3

10:31-06:20

2 stops28h 49m

Sydney Kingsford Smith

Fri 27/3

11:50-20:50

2 stops24h 00m

$2,122

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 19/3

10:31-09:15

2 stops31h 44m

Sydney Kingsford Smith

Thu 26/3

11:50-20:50

2 stops24h 00m

$2,123

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 18/2

10:36-09:05

2 stops30h 29m

Sydney Kingsford Smith

Sun 22/2

11:50-20:53

2 stops25h 03m

$3,175

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 18/2

06:28-07:00

2 stops32h 32m

Sydney Kingsford Smith

Sun 22/2

14:00-20:53

2 stops22h 53m

$3,177

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 13/4

12:52-06:50

2 stops27h 58m

Sydney Kingsford Smith

Fri 12/6

09:15-22:56

2 stops27h 41m

$7,030

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 19/3

12:00-06:55

2 stops27h 55m

Sydney Kingsford Smith

Thu 26/3

13:05-00:29

3 stops26h 24m

$20,069

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 20/3

12:00-06:55

2 stops27h 55m

Sydney Kingsford Smith

Fri 27/3

13:05-00:29

3 stops26h 24m

$20,120

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 return 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?
Sydney Kingsford Smith is 15854.2 km away from Allentown-Bethlehem. Flights usually cover this in 27h 58m, depending on flying conditions and air traffic around both airports.
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 updated daily.
How old do you have to be to fly from Allentown-Bethlehem Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 licence 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.

How do I get Price Alerts for flights from Allentown to Sydney?
Search flight deals from Allentown to Sydney. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from Allentown to Sydney with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Leura

Manly

Coogee

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

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?

Flights from Allentown to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Allentown and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Allentown to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.