$281+ 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 20/4. 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
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags

Find flights from Allentown

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Cheapest flights from Allentown
Explore the most affordable flight options available from Allentown. Find the lowest fares based on data from user searches, with prices last updated on 5 February 2026.

Fri 20/310:31
ABE
-
SYD
2 stops28h 49m
United Airlines
Fri 27/311:50
SYD
-
ABE
2 stops24h 00m
United Airlines
Deal found 3/2$2,120
Thu 19/310:31
ABE
-
SYD
2 stops31h 44m
United Airlines
Thu 26/311:50
SYD
-
ABE
2 stops24h 00m
United Airlines
Deal found 2/2$2,121
Sun 22/310:31
ABE
-
SYD
2 stops29h 29m
United Airlines
Sun 29/311:20
SYD
-
ABE
2 stops24h 57m
United Airlines
Deal found 4/2$3,131
Wed 18/210:36
ABE
-
SYD
2 stops30h 39m
United Airlines
Sun 22/211:50
SYD
-
ABE
2 stops25h 03m
United Airlines
Deal found 4/2$3,171
Mon 22/617:40
ABE
-
SYD
2 stops46h 40m
Multiple Airlines
Wed 8/707:55
SYD
-
ABE
2 stops53h 01m
Multiple Airlines
Deal found 4/2$4,060
Mon 13/412:52
ABE
-
SYD
2 stops27h 58m
Delta
Fri 12/609:15
SYD
-
ABE
2 stops27h 41m
Delta
Deal found 3/2$7,023
Mon 22/613:00
ABE
-
SYD
2 stops27h 50m
Delta
Wed 8/709:15
SYD
-
ABE
2 stops27h 41m
Delta
Deal found 4/2$10,246
Thu 19/312:00
ABE
-
SYD
2 stops27h 55m
American Airlines
Thu 26/313:05
SYD
-
ABE
3 stops26h 24m
American Airlines
Deal found 2/2$20,049
Fri 20/312:00
ABE
-
SYD
2 stops27h 55m
American Airlines
Fri 27/313:05
SYD
-
ABE
3 stops26h 24m
American Airlines
Deal found 3/2$20,100

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 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

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

$2,120

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

$2,121

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Sun 22/3

10:31-07:00

2 stops29h 29m

Sydney Kingsford Smith

Sun 29/3

11:20-21:17

2 stops24h 57m

$3,131

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Wed 18/2

10:36-09:15

2 stops30h 39m

Sydney Kingsford Smith

Sun 22/2

11:50-20:53

2 stops25h 03m

$3,171

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 22/6

06:00-17:10

2 stops45h 10m

Sydney Kingsford Smith

Wed 8/7

12:00-22:15

3 stops48h 15m

$5,504

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

$7,023

AllentownSydney

ABE - SYD

ABESYD

Allentown-Bethlehem

Mon 22/6

13:00-06:50

2 stops27h 50m

Sydney Kingsford Smith

Wed 8/7

09:15-22:56

2 stops27h 41m

$10,246

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

$20,049

Flights are sorted by cheapest return flights first.

Deals found on 3/2

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, February is the cheapest month in which you can book a flight from Allentown (average of $1,202). Flying from Allentown in January will prove the most costly (average of $1,374). 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 February 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, Fort Lauderdale. 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 February. The most expensive month for flights is January. 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!

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Fly with Cheapflights

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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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