$346+ Cheap flights from Allentown

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ABE — SYD
5 May — 12 May1
1 adult
1 adult, Economy, 0 bags

Find flights from Allentown within your budget

 
Find flights departing from Allentown that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 5 April 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 22/4

12:53-06:50

2 stops27h 57m

Sydney Kingsford Smith

Wed 29/4

09:15-23:00

2 stops27h 45m

$2,275

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 2/5

17:40-07:00

2 stops47h 20m

Sydney Kingsford Smith

Mon 11/5

09:30-09:48

2 stops38h 18m

$2,304

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Thu 30/4

12:53-06:50

2 stops27h 57m

Sydney Kingsford Smith

Sun 10/5

09:15-22:18

2 stops27h 03m

$2,348

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 3/5

12:53-06:50

2 stops27h 57m

Sydney Kingsford Smith

Thu 7/5

09:15-22:18

2 stops27h 03m

$2,934

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 2/5

17:59-06:50

2 stops46h 51m

Sydney Kingsford Smith

Thu 7/5

09:15-22:18

2 stops27h 03m

$2,968

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 4/5

12:53-06:50

2 stops27h 57m

Sydney Kingsford Smith

Sat 9/5

09:15-12:19

2 stops41h 04m

$2,970

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 29/4

10:35-06:55

2 stops30h 20m

Sydney Kingsford Smith

Sun 3/5

10:20-09:48

2 stops37h 28m

$3,449
Fastest return journey

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Tue 5/5

10:35-06:55

2 stops30h 20m

Sydney Kingsford Smith

Tue 12/5

10:20-20:58

3 stops24h 38m

$11,967
Cheapest one-way

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 19/4

06:33-06:50

2 stops34h 17m

$1,298

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sat 18/4

17:59-06:50

2 stops46h 51m

$1,340

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Allentown

Have a flexible travel schedule? Discover the best time to fly 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.

Travel insights for flights from Allentown

Get recent, data-driven insights about flights from Allentown including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Allentown (average of $611). Flying from Allentown in July will prove the most costly (average of $1,727). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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Related info for your journey

Access useful and relevant information related to your journey from Allentown. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 5 April 2026.

  • What are the most popular destinations to fly to from Allentown?

    For the current month, the most popular flights from Allentown are Orlando Sanford Intl Airport, Orlando, Myrtle Beach. Orlando Sanford Intl Airport, Orlando, Myrtle Beach are the most popular locations from Allentown year round.

  • What is the cheapest month to fly from Allentown?

    Currently, the cheapest month for flights from Allentown is September. The most expensive month for flights is July. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from Allentown?

    When you search for this flight from Allentown, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Allentown for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Allentown with no change fees?

    Certainly. Search results for flights from Allentown shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Allentown today and book when you’re ready!

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Allentown?

When you search for this flight from Allentown, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Allentown for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Allentown with no change fees?

Certainly. Search results for flights from Allentown shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Allentown today and book when you’re ready!

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