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£452+ 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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
— ABE
14 Aug — 21 Aug1
1 adult
1 adult, Economy, 0 bags

Flights to Allentown in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Allentown
Explore the most affordable flight options available to Allentown. Find the lowest fares based on data from user searches, with prices last updated on 15 July 2026.

Mon 7/1211:00
LHR
-
ABE
1 stop16h 12m
Finnair
Fri 11/1206:10
ABE
-
LHR
2 stops19h 05m
Finnair
Deal found 14/7£646
Wed 30/918:05
LHR
-
ABE
2 stops34h 17m
Multiple Airlines
Wed 7/1017:14
ABE
-
LHR
1 stop11h 11m
Multiple Airlines
Deal found 13/7£663
Mon 7/1215:50
LHR
-
ABE
1 stop30h 22m
Virgin Atlantic
Fri 11/1213:00
ABE
-
LHR
1 stop12h 25m
Virgin Atlantic
Deal found 14/7£703
Tue 13/1011:10
LHR
-
ABE
1 stop16h 02m
Multiple Airlines
Tue 3/1106:00
ABE
-
LHR
1 stop24h 35m
Multiple Airlines
Deal found 14/7£704
Wed 30/908:40
LHR
-
ABE
2 stops29h 55m
United Airlines
Wed 7/1006:20
ABE
-
LHR
2 stops19h 35m
United Airlines
Deal found 13/7£726
Wed 30/907:30
LHR
-
ABE
2 stops38h 38m
United Airlines
Sun 4/1017:46
ABE
-
LHR
1 stop33h 44m
United Airlines
Deal found 12/7£737
Sun 6/909:20
LHR
-
ABE
1 stop18h 03m
Virgin Atlantic
Mon 7/913:10
ABE
-
LHR
1 stop12h 15m
Virgin Atlantic
Deal found 13/7£747
Thu 12/1113:45
LHR
-
ABE
2 stops49h 11m
United Airlines
Mon 16/1117:32
ABE
-
LHR
1 stop31h 23m
United Airlines
Deal found 13/7£754

Find flight deals to Allentown

Find the latest flights to Allentown in 2026, 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 15 July 2026.

Return from

£646

One-way from

£452
Finnair
  • Finnair
  • 7/12-11/12
  • 3 total stops
  • 35h 17m total
  • London to Allentown
Search Deals
22/10
  • 22/10
  • 3 total stops
  • 24h 23m total
  • London to Allentown
Search Deals

Cheapflights Fare Finder

 
Locate flights to Allentown that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 15 July 2026.
Use the filters below to find and compare flights to Allentown that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 7/12

11:00-22:12

1 stop16h 12m

Allentown-Bethlehem

Fri 11/12

06:10-06:15

2 stops19h 05m

£646

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

18:05-23:22

2 stops34h 17m

Allentown-Bethlehem

Wed 7/10

17:14-09:25

1 stop11h 11m

£663

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

08:40-09:35

2 stops29h 55m

Allentown-Bethlehem

Wed 7/10

06:20-06:55

2 stops19h 35m

£726

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

07:30-17:08

2 stops38h 38m

Allentown-Bethlehem

Sun 4/10

17:46-08:30

1 stop33h 44m

£737

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 12/11

13:45-09:56

2 stops49h 11m

Allentown-Bethlehem

Mon 16/11

17:32-20:35

2 stops22h 03m

£754
Cheapest one-way

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 22/10

13:05-08:28

3 stops24h 23m

£452

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 7/10

13:25-22:29

1 stop14h 04m

£464

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 22/10

13:25-22:29

1 stop14h 04m

£504

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 23/8

13:05-21:46

2 stops37h 41m

£521

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 27/8

06:50-09:57

2 stops32h 07m

£663

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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.
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 to Allentown

How long is the flight to Allentown?

On average, a flight from London to Allentown takes 15 hours 6 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.

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.

  • What airport do you fly into for flights to Allentown?

    Most people fly into Allentown-Bethlehem (ABE) if they book a flight to Allentown. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • Can I find cheaper flights to Allentown if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Allentown on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Where does the fastest flight to Allentown depart from?

    For those looking to save time traveling to Allentown, London offers the quickest one-way flight (15 hours 6 minutes).

  • Does Allentown-Bethlehem have car hire?

    Yes. Those touching down at Allentown-Bethlehem can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Allentown-Bethlehem?

    Yes. Allentown-Bethlehem has hotels nearby for those requiring accommodations. Days Hotel by Wyndham Allentown Airport / Lehigh Valley is the closest property to Allentown-Bethlehem (0.0 mi away from Allentown-Bethlehem).

See more FAQs

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Yes, we can. To see specific flights to Allentown with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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