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Cheap flights from Allentown to Sydney from $1,938

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SYD
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Allentown to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 November 2025.

Round-trip from

$1,938
United Airlines
  • United Airlines
  • 18/1-25/1
  • 4 total stops
  • 53h 00m total
  • Allentown to Sydney
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Enter your travel dates to find the best prices.

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 3 November 2025.

Thu 6/1106:00ABE - SYD
2 stops34h 30mDelta
Mon 10/1110:40SYD - ABE
2 stops27h 32mDelta
Deal found 2/11$2,015
Sat 29/1106:32ABE - SYD
2 stops32h 28mUnited Airlines
Tue 9/1214:00SYD - ABE
2 stops23h 46mUnited Airlines
Deal found 31/10$2,435
Sat 29/1112:56ABE - SYD
2 stops27h 34mDelta
Tue 9/1210:40SYD - ABE
2 stops27h 31mDelta
Deal found 31/10$19,653

Cheapflights Fare Finder

 
Customise 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, Cheapflights users made 647,157 searches. Data last updated 3 November 2025.
Use the filters below to find and compare flights from Allentown to Sydney that are best for you.

Fly from

Allentown

Fly to

Sydney

Route

Depart

Return

Price

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 20/1

06:15-09:05

2 stops34h 50m

Sydney Kingsford Smith

Mon 26/1

12:10-21:15

2 stops25h 05m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 24/1

17:58-06:50

2 stops44h 52m

Sydney Kingsford Smith

Wed 28/1

10:40-22:50

2 stops28h 10m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 18/1

11:30-09:15

2 stops29h 45m

Sydney Kingsford Smith

Sun 25/1

14:00-21:15

2 stops23h 15m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 19/1

06:28-08:30

2 stops34h 02m

Sydney Kingsford Smith

Wed 28/1

10:40-22:50

2 stops28h 10m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 20/1

06:15-09:05

2 stops34h 50m

Sydney Kingsford Smith

Wed 28/1

14:00-21:15

2 stops23h 15m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 19/1

06:28-08:30

2 stops34h 02m

Sydney Kingsford Smith

Sun 25/1

10:40-22:50

2 stops28h 10m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 18/1

11:30-09:15

2 stops29h 45m

Sydney Kingsford Smith

Tue 27/1

12:10-21:15

2 stops25h 05m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 21/1

06:28-08:30

2 stops34h 02m

Sydney Kingsford Smith

Wed 28/1

10:40-22:50

2 stops28h 10m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 18/1

06:15-09:15

2 stops35h 00m

Sydney Kingsford Smith

Mon 26/1

11:50-21:15

2 stops25h 25m

$1,938

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 21/1

06:15-06:20

2 stops32h 05m

Sydney Kingsford Smith

Sun 25/1

14:00-21:15

2 stops23h 15m

$1,938

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 12 results
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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.
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.

Cheapflights Insights

Everything you need to know about your flight from Allentown to Sydney

What is the cheapest month to book a flight from Allentown to Sydney?

Currently, February is the cheapest month in which you can book a flight from Allentown to Sydney (average of $1,274). Flying from Allentown to Sydney in January is currently the most expensive (average of $1,450). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Allentown to Sydney?

    Departing from Allentown to Sydney will take you 34h 50m. 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.

  • What is the cheapest month to book a flight from Allentown to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Allentown to Sydney (average of $1,274). Flying from Allentown to Sydney in January is currently the most expensive (average of $1,450). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Manly
Terrigal
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

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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.

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