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£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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
— ABE
22 Mar — 29 Mar1
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 20 February 2026.

Mon 23/1109:30
LHR
-
ABE
2 stops18h 16m
Virgin Atlantic
Sun 29/1117:40
ABE
-
LHR
1 stop31h 45m
Virgin Atlantic
Deal found 18/2£618
Tue 24/214:45
LHR
-
ABE
1 stop13h 46m
American Airlines
Tue 28/412:57
ABE
-
LHR
2 stops16h 18m
American Airlines
Deal found 17/2£712
Mon 23/1111:45
LHR
-
ABE
2 stops29h 19m
Delta
Sun 29/1106:30
ABE
-
LHR
2 stops23h 00m
Delta
Deal found 18/2£728
Tue 17/310:25
LHR
-
ABE
1 stop14h 25m
United Airlines
Tue 24/318:51
ABE
-
LHR
1 stop12h 24m
United Airlines
Deal found 17/2£736
Thu 26/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Tue 28/412:57
ABE
-
LHR
2 stops16h 18m
American Airlines
Deal found 17/2£742
Thu 16/416:55
LHR
-
ABE
1 stop12h 27m
American Airlines
Tue 28/412:57
ABE
-
LHR
2 stops13h 48m
American Airlines
Deal found 18/2£745
Tue 24/207:30
LHR
-
ABE
2 stops21h 01m
American Airlines
Wed 29/406:04
ABE
-
LHR
1 stop19h 51m
American Airlines
Deal found 17/2£756
Wed 25/206:30
LHR
-
ABE
2 stops15h 42m
Delta
Sun 3/512:53
ABE
-
LHR
2 stops20h 42m
Delta
Deal found 17/2£758
Fri 27/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Wed 15/412:00
ABE
-
LHR
2 stops17h 15m
American Airlines
Deal found 20/2£765
Tue 24/212:30
LHR
-
ABE
1 stop15h 19m
Delta
Wed 29/417:59
ABE
-
LHR
1 stop14h 16m
Delta
Deal found 17/2£771
Fri 27/213:10
LHR
-
ABE
2 stops16h 19m
American Airlines
Fri 17/412:00
ABE
-
LHR
2 stops17h 15m
American Airlines
Deal found 20/2£795

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 20 February 2026.

Return from

£324

One-way from

£441

Popular in

July

Cheapest in

September

Average price

£367
Icelandair
  • Icelandair
  • 22/4-2/5
  • 2 total stops
  • 21h 40m total
  • London to New York
Search Deals
Delta
  • Delta
  • 8/4
  • 1 total stop
  • 14h 27m total
  • London to Allentown
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
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 20 February 2026.
Use the filters below to find and compare flights to Allentown that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 17/3

10:25-20:50

1 stop14h 25m

Allentown-Bethlehem

Tue 24/3

18:51-11:15

1 stop12h 24m

£736

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 16/4

14:10-00:22

2 stops15h 12m

Allentown-Bethlehem

Tue 28/4

12:57-07:45

2 stops13h 48m

£745

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 20/3

09:10-20:50

2 stops15h 40m

Allentown-Bethlehem

Fri 27/3

18:51-05:30

2 stops30h 39m

£871

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/4

16:55-00:29

1 stop12h 34m

Allentown-Bethlehem

Fri 10/4

12:00-06:55

1 stop13h 55m

£903

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 6/4

14:10-09:48

1 stop24h 38m

Allentown-Bethlehem

Mon 13/4

17:38-11:45

1 stop13h 07m

£1,111

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/4

09:20-17:17

1 stop12h 57m

Allentown-Bethlehem

Fri 10/4

12:57-12:05

2 stops18h 08m

£1,112

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 4/4

08:00-17:03

1 stop14h 03m

Allentown-Bethlehem

Sat 11/4

17:38-06:45

1 stop32h 07m

£1,155

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/4

08:00-17:03

1 stop14h 03m

Allentown-Bethlehem

Fri 10/4

10:35-06:45

1 stop15h 10m

£1,246

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 29/3

08:00-17:03

1 stop14h 03m

Allentown-Bethlehem

Tue 7/4

17:38-11:45

1 stop13h 07m

£1,442

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 8/4

13:25-22:52

1 stop14h 27m

£441

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 18 results
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 13 hours 17 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 (13 hours 17 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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