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$1,218+ Cheap flights from Allentown (ABE) to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SYD
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Allentown to Sydney

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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:07 pmABE - SYD
2 stops45h 53mUnited Airlines
Tue 12/3011:50 amSYD - ABE
2 stops25h 57mUnited Airlines
Deal found 12/15$5,156
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2012:49 pmABE - SYD
2 stops26h 01mDelta
Tue 12/3010:40 amSYD - ABE
2 stops22h 44mDelta
Deal found 12/15$5,789

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,218
(Delta)

Popular in

December

Cheapest in

February

Average price

$1,941
Provider with most accurate pricing for Allentown-Bethlehem-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-Sydney Kingsford Smith flights.
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From Allentown-Bethlehem to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($205 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated December 15, 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

Sun 3/29

6:25 am-7:35 am

2 stops34h 10m

Sydney Kingsford Smith

Mon 4/6

9:15 am-12:06 pm

2 stops40h 51m

$1,218

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 1/27

6:15 am-9:15 am

2 stops35h 00m

Sydney Kingsford Smith

Tue 2/3

11:20 am-9:05 pm

2 stops25h 45m

$1,218

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 3/30

12:46 pm-7:35 am

2 stops27h 49m

Sydney Kingsford Smith

Mon 4/6

9:15 am-12:06 pm

2 stops40h 51m

$1,218

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 3/28

12:46 pm-7:35 am

2 stops51h 49m

Sydney Kingsford Smith

Mon 4/6

9:15 am-12:06 pm

2 stops40h 51m

$1,236

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 3/28

5:54 pm-7:35 am

2 stops46h 41m

Sydney Kingsford Smith

Sun 4/5

9:15 am-10:47 pm

2 stops51h 32m

$1,243

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 3/26

6:25 am-7:30 am

2 stops34h 05m

Sydney Kingsford Smith

Mon 4/6

9:15 am-12:06 pm

2 stops40h 51m

$1,268

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 3/26

6:25 am-7:30 am

2 stops34h 05m

Sydney Kingsford Smith

Sun 4/5

9:15 am-5:14 pm

2 stops45h 59m

$1,286

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 3/26

12:46 pm-7:30 am

2 stops27h 44m

Sydney Kingsford Smith

Thu 4/2

10:15 am-12:06 pm

2 stops40h 51m

$1,318

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 3/27

6:25 am-7:35 am

2 stops34h 10m

Sydney Kingsford Smith

Fri 4/3

10:15 am-10:47 pm

2 stops27h 32m

$1,318

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Fri 3/27

6:25 am-7:35 am

2 stops34h 10m

Sydney Kingsford Smith

Sat 4/4

10:15 am-12:06 pm

2 stops40h 51m

$1,474

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 12 results
1
2

Compare providers for flights from Allentown to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Sydney in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Allentown-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $843). Flying from Allentown to Sydney in January is currently the most expensive (average of $949). 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?

    A quick flight from Allentown to Sydney can take about 35h. United Airlines provides one of the quickest options available for as low as $1,218. Allentown and Sydney are separated by a distance of 9857 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with 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 vacation 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 $843). Flying from Allentown to Sydney in January is currently the most expensive (average of $949). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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