£441+ Cheap flights to Allentown
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Allentown in 2025
Find the latest flights to Allentown in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 18 September 2025.
Find flight deals to Allentown
Cheapest flights to AllentownExplore the most affordable flight options available to Allentown. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
Explore the most affordable flight options available to Allentown. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
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Fly from
Route
Depart
Return
Price
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 3/10
11:20-22:41
1 stop16h 21m
Allentown-Bethlehem
Mon 6/10
18:00-13:30
1 stop14h 30m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 31/10
08:40-22:15
2 stops17h 35m
Allentown-Bethlehem
Fri 7/11
18:00-06:50
2 stops31h 50m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 3/10
06:15-22:41
2 stops21h 26m
Allentown-Bethlehem
Mon 6/10
18:00-13:30
1 stop14h 30m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 21/11
08:55-17:19
1 stop13h 24m
Allentown-Bethlehem
Sun 23/11
12:56-09:00
1 stop15h 04m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Thu 5/3
08:55-17:13
1 stop13h 18m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Wed 19/11
08:15-15:59
3 stops36h 44m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Sat 3/1
08:55-17:16
1 stop13h 21m
Best time to book a flight to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Allentown
How long is the flight to Allentown?
On average, a flight from London to Allentown takes 12 hours 44 minutes. Flights to Allentown from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.
What are the most popular airlines that fly to Allentown?
The most popular airline flying from London to Allentown is Finnair.
What are the cheapest airlines that fly to Allentown?
The cheapest airline flying from London to Allentown is Finnair.
Rainfall in Allentown by month
Plan your trip to Allentown by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Allentown ranges from 69.0 - 127.0 inches per month. July is typically the wettest month, when rainfall can reach 127.0 mm. February is typically the driest time to visit Allentown when rainfall is around 69.0 mm.
Temperature in Allentown by month
Plan your trip to Allentown by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -2.0 C).
FAQs about flying to Allentown
Getting around Allentown
Daily regional bus and coach services are available to New York City, Philadelphia and Atlantic City. A great way to discover the city environs is by bike and making use of the fabulous parks and gardens system, canal tow paths and extensive trails. Exploring on foot the main central area is a good option or try a walking tour of the historic districts in Allentown to soak up the ambience of this characterful American city.
Getting from the Airport to the City
Lehigh Valley International Airport (ABE) is easily accessible within 15 minutes from most parts of Allentown. There is a convenient local bus service provided by LANTA and several taxi and limo companies operating in the city.
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