Find flights
Travel Guide

£455+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
— ABE
8 Sep — 15 Sep1
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 9 August 2026.

Tue 1/913:25 -
1 stop13h 58m
Mon 7/918:09 -
1 stop32h 06m
Deal found 4/8£687
Wed 30/913:10 -
1 stop14h 08m
Wed 7/1006:00 -
1 stop24h 15m
Deal found 5/8£697
Tue 22/906:30 -
2 stops20h 46m
Tue 29/906:25 -
2 stops18h 55m
Deal found 8/8£702
Mon 28/906:15 -
2 stops16h 04m
Sun 11/1018:03 -
1 stop31h 22m
Deal found 4/8£706
Mon 28/908:55 -
2 stops18h 21m
Tue 6/1018:03 -
1 stop12h 17m
Deal found 5/8£707
Tue 29/909:20 -
1 stop13h 01m
Tue 13/1013:00 -
1 stop12h 25m
Deal found 4/8£715
Tue 29/909:20 -
1 stop13h 01m
Tue 6/1018:03 -
1 stop12h 17m
Deal found 5/8£716
Mon 28/908:55 -
2 stops18h 21m
Thu 8/1013:00 -
2 stops15h 00m
Deal found 5/8£722
Tue 20/1011:10 -
1 stop16h 02m
Thu 29/1006:00 -
1 stop20h 55m
Deal found 4/8£729
Tue 29/909:20 -
1 stop13h 01m
Thu 8/1013:00 -
2 stops15h 00m
Deal found 5/8£730
Mon 19/1008:55 -
2 stops18h 34m
Wed 28/1013:00 -
1 stop13h 25m
Deal found 4/8£735

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 9 August 2026.

Return from

£687

One-way from

£455
Virgin Atlantic
  • Virgin Atlantic
  • 1/9-7/9
  • 2 total stops
  • 46h 04m total
  • London to Allentown
Search Deals
Delta
  • Delta
  • 9/11
  • 2 total stops
  • 15h 48m 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 9 August 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

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Wed 16/9

07:30-21:00

2 stops18h 30m

Allentown-Bethlehem

Sun 20/9

18:01-16:25

2 stops41h 24m

£735

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Tue 29/9

09:20-17:21

1 stop13h 01m

Allentown-Bethlehem

Fri 9/10

06:39-07:15

1 stop19h 36m

£745

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Thu 3/9

06:50-16:56

2 stops15h 06m

Allentown-Bethlehem

Wed 9/9

17:36-11:55

1 stop13h 19m

£767
Fastest return journey

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Fri 23/10

13:25-22:29

1 stop14h 04m

Allentown-Bethlehem

Mon 26/10

13:00-06:25

1 stop13h 25m

£774

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Sun 18/10

09:20-22:29

1 stop18h 09m

Allentown-Bethlehem

Wed 28/10

13:00-06:25

1 stop13h 25m

£774

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Sat 3/10

09:20-17:31

1 stop13h 11m

Allentown-Bethlehem

Thu 8/10

18:03-07:15

1 stop32h 12m

£776

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Thu 3/9

08:45-09:57

2 stops30h 12m

Allentown-Bethlehem

Mon 7/9

17:36-09:00

1 stop34h 24m

£776
Cheapest one-way

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 9/11

11:00-22:24

1 stop16h 24m

£455

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 9/11

06:30-17:18

2 stops15h 48m

£455

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 30/11

07:30-22:31

2 stops20h 01m

£457

Flights are sorted by cheapest return flights first.

Deals found on 6/8

Showing 1-10 of 18 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 47 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 47 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Allentown by cabin class

Find flights to Allentown, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class flights to Allentown
Business Class flights to Allentown
Prem Economy Class flights to Allentown
Economy Class flights to Allentown

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 to Allentown?

When you search for this flight to 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 to Allentown?

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

Can Cheapflights find flights to Allentown with no change fees?

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.

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

Not ready to book yet? You can track prices for flights to Allentown on Cheapflights with our Price Alerts feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.