How long is the flight from Allentown to Sydney?

Departing from Allentown to Sydney will take you 34h. The distance from Allentown to Sydney is about 15863 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from ABE to SYD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Allentown to Sydney as you normally would.

Can I find deals for flights from Allentown to Sydney that include hotel bookings?

Yes. In addition to deals on Allentown to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Allentown to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to Sydney.

Can I find deals for business class flights from Allentown to Sydney?

Yes. Cheapflights offers flight deals from Allentown to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$993+ Cheap Flights from Allentown to Sydney

Cheap flight deals from Allentown to Sydney

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Allentown to Sydney
Explore the most affordable flight options available from Allentown to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Tue 3/1114:30 -

2 stops26h 00m

Tue 10/1110:40 -

2 stops27h 47m

Deal found 19/9$1,871

Sun 1/1111:44 -

2 stops26h 41m

Sun 8/1111:10 -

2 stops29h 09m

Deal found 17/9$1,964

Sat 24/1010:37 -

2 stops30h 28m

Sat 7/1111:50 -

2 stops25h 12m

Deal found 16/9$2,012

Sat 7/1117:36 -

2 stops45h 24m

Sat 21/1109:10 -

2 stops23h 47m

Deal found 18/9$2,217

Tue 29/1206:00 -

2 stops33h 00m

Wed 20/113:20 -

2 stops36h 10m

Deal found 19/9$2,580

Sun 1/1105:37 -

2 stops45h 43m

Sun 8/1120:00 -

3 stops42h 59m

Deal found 17/9$2,809

Tue 3/1105:37 -

2 stops45h 43m

Tue 10/1119:00 -

3 stops43h 59m

Deal found 19/9$3,011

Mon 9/1105:37 -

2 stops45h 43m

Mon 16/1120:00 -

3 stops42h 59m

Deal found 17/9$3,025

Mon 9/1118:00 -

2 stops34h 05m

Fri 13/1110:20 -

2 stops52h 07m

Deal found 18/9$3,301

Find flight deals from Allentown to Sydney

Round-trip from	$1,871
One-way from	$993

Delta
9/11-16/11
4 total stops
75h 24m total
Allentown to Sydney

Search Deals

United Airlines
23/2-31/12
2 total stops
28h 23m total
Allentown to Sydney

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 23/2

10:37-07:00

2 stops28h 23m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$993

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Sat 27/2

17:36-06:20

2 stops44h 44m

Sydney Kingsford Smith

Wed 31/12

00:00-09:00

Nonstop0h 00m

$1,002

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Mon 9/11

06:30-08:30

2 stops34h 00m

Sydney Kingsford Smith

Mon 16/11

10:40-12:04

2 stops41h 24m

$1,871

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Sat 7/11

17:36-07:00

2 stops45h 24m

Sydney Kingsford Smith

Sat 21/11

11:20-21:02

2 stops25h 42m

$1,964

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Sat 24/10

10:37-09:20

2 stops31h 43m

Sydney Kingsford Smith

Sat 7/11

11:50-21:02

2 stops25h 12m

$2,012

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 29/12

06:00-07:00

2 stops33h 00m

Sydney Kingsford Smith

Wed 20/1

13:20-09:30

2 stops36h 10m

$2,580

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Sun 1/11

05:37-19:20

2 stops45h 43m

Sydney Kingsford Smith

Sun 8/11

20:00-22:59

3 stops42h 59m

$2,809

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Tue 3/11

05:37-19:20

2 stops45h 43m

Sydney Kingsford Smith

Tue 10/11

19:00-22:59

3 stops43h 59m

$3,011

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Mon 9/11

05:37-19:20

2 stops45h 43m

Sydney Kingsford Smith

Mon 16/11

20:00-22:59

3 stops42h 59m

$3,025

AllentownSydney

ABE Allentown-Bethlehem - SYD Sydney Kingsford Smith

ABESYD

Allentown-Bethlehem

Mon 9/11

18:00-20:05

2 stops34h 05m

Sydney Kingsford Smith

Fri 13/11

10:20-22:27

2 stops52h 07m

$3,301

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 14 resultsSorted by cheapest first

Best time to book a flight from Allentown to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Allentown with our price prediction graph.

ABE-SYD

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Allentown to Sydney?
Departing from Allentown to Sydney will take you 34h. The distance from Allentown to Sydney is about 15863 km. This flight may include one or multiple stops.
Can I find deals for flights from Allentown to Sydney that include hotel bookings?
Yes. In addition to deals on Allentown to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Allentown to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to Sydney.
Can I find deals for business class flights from Allentown to Sydney?
Yes. Cheapflights offers flight deals from Allentown to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Parramatta

Wollongong

Penrith

Manly

Katoomba

Lithgow

Cronulla

Terrigal

Randwick

Leura

Bondi Beach

Coogee

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to New South Wales

Flights by cabin class

Other flight options

Popular flights

Sydney flight routes

Alternative routes for Allentown to Sydney

John F Kennedy Intl to Sydney flights

Newark to Sydney flights

Dulles Intl to Sydney flights

Reagan-National to Sydney flights

Philadelphia to Sydney flights

Pittsburgh to Sydney flights

Harrisburg to Sydney flights

John F Kennedy Intl to Coolangatta flights

Dulles Intl to Coolangatta flights

Fly with Cheapflights

How does Cheapflights help users find flights from Allentown to Sydney?

Cheapflights helps you search for flights from Allentown to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Allentown to Sydney?

Cheapflights helps you find that perfect flight to Sydney from Allentown by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Allentown to Sydney with no change fees?

Yes, we can. To see specific flights from Allentown to Sydney with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Allentown to Sydney become cheaper?

Yes! Start tracking prices for Allentown to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Allentown to Sydney from $993

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Allentown to Sydney

Cheapest flights from Allentown to SydneyExplore the most affordable flight options available from Allentown to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Explore the most affordable flight options available from Allentown to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Best flights from Allentown to SydneyDiscover carefully curated flight deals from Allentown to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Discover carefully curated flight deals from Allentown to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Last-minute flights from Allentown to SydneyDiscover last-minute flight deals from Allentown to Sydney. Data last updated 20 September 2026 and is based on user searches.

Discover last-minute flight deals from Allentown to Sydney. Data last updated 20 September 2026 and is based on user searches.

One-way flights from Allentown to SydneySearch for one-way flight options from Allentown to Sydney. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Search for one-way flight options from Allentown to Sydney. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Find flight deals from Allentown to Sydney

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Allentown to Sydney that are best for you.

Best time to book a flight from Allentown to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Allentown with our price prediction graph.

Related info for your journey

How long is the flight from Allentown to Sydney?

Can I find deals for flights from Allentown to Sydney that include hotel bookings?

How can I find direct flights from Allentown to Sydney?

Can I find deals for business class flights from Allentown to Sydney?

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Allentown to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Sydney by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to New South Wales

Book a non-stop flight to one of these other cities located in New South Wales.

Search flights from Allentown to Sydney by cabin class

Find flights from Allentown to Sydney, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Allentown and Sydney flights

Browse other Allentown and Sydney flight options. Last updated on 20 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Sydney

Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 September 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from Allentown to Sydney?

Why should you use Cheapflights to find cheap flight tickets from Allentown to Sydney?

Can Cheapflights find flights from Allentown to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from Allentown to Sydney become cheaper?

100% Free

Book with flexibility

Travel Smart

Cheapest flights from Allentown to Sydney
Explore the most affordable flight options available from Allentown to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Best flights from Allentown to Sydney
Discover carefully curated flight deals from Allentown to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Last-minute flights from Allentown to Sydney
Discover last-minute flight deals from Allentown to Sydney. Data last updated 20 September 2026 and is based on user searches.

One-way flights from Allentown to Sydney
Search for one-way flight options from Allentown to Sydney. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.