Question 1

Which airport typically offers the quickest stopover for flights from London to Allentown?

Accepted Answer

Flights via Charlotte (CLT) offer the fastest connection on this route, with an average stopover time of 1h 00m.

Question 2

What’s the top stopover airport for flights from London to Allentown?

Accepted Answer

Atlanta (ATL) – chosen by Cheapflights users on 52% of one-stop itineraries from London to Allentown on Cheapflights.

Question 3

What’s the cheapest stopover airport for flights from London to Allentown?

Accepted Answer

Charlotte (CLT) is the most affordable one-stop option, with an average return flight price of £482.

Question 4

What’s the fastest stopover option from London to Allentown?

Accepted Answer

Flights via Philadelphia (PHL) have the shortest average one-way travel time for one-stop routes: 11h 53m.

Question 5

How long is the flight from London to Allentown?

Accepted Answer

Airlines like Delta and United Airlines fly from London to Allentown in about 21h 19m. The time it takes to get you to your destination can typically vary by up to 28h 37m. The distance between London and Allentown is about 3507 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Question 6

What is the cheapest airline to fly from London to Allentown round-trip?

Accepted Answer

Our cheapest airline available from London to Allentown is Finnair. Our recent data shows that you can find tickets from as low as £528 on this airline.

Question 7

What is the cheapest month to book a flight from London to Allentown?

Accepted Answer

Currently, March is the cheapest month in which you can book a flight from London to Allentown (average of £298). Flying from London to Allentown in June is currently the most expensive (average of £354). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

What is the cheapest time of day to fly from LON to ABE?

Accepted Answer

When flying from London to Allentown, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 11

What airport do you fly into for flights to Allentown from London?

Accepted Answer

If you book a flight to Allentown from London, you will be flying to Allentown-Bethlehem, which is the city’s only airport. Allentown-Bethlehem (ABE) is located 3.9 mi from the center of Allentown. There are 0 flights from London to Allentown-Bethlehem per day from 1 airline.

Question 12

Can I find deals for flights from London to Allentown that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 13

How can I find direct flights from London to Allentown?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Allentown.

Question 14

Can I find deals for business class flights from London to Allentown?

Accepted Answer

Yes. Cheapflights offers flight deals from London to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 15

How does Cheapflights help users find flights from London to Allentown?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Allentown. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 16

Why should you use Cheapflights to find cheap flight tickets from London to Allentown?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Allentown from London.

Question 17

Can Cheapflights find flights from London to Allentown with no change fees?

Accepted Answer

Need flexible booking options for your flight to Allentown from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 18

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

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Allentown from London today and book when prices fit your budget.

Round-trip from	£552
One-way from	£426

Cheap flights from London to Allentown from £426

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Allentown

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Find flight deals from London to Allentown

Cheapest flights from London to AllentownExplore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.

Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.

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Use the filters below to find and compare flights from London to Allentown that are best for you.

Best time to book a flight from London to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Allentown

What is the cheapest month to book a flight from London to Allentown?

What’s the top stopover airport for flights from London to Allentown?

Share of one-stop return flights from London to Allentown chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to Allentown?

Average return fare for one-stop flights from London to Allentown, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to Allentown?

Shortest average travel time for one-stop one-way flights from London to Allentown, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to Allentown?

Average stopover duration for one-stop one-way flights from London to Allentown, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Related info for your journey

Find useful and relevant information for your journey from London to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Allentown from London?

How long is the flight from London to Allentown?

What is the cheapest airline to fly from London to Allentown round-trip?

Can I find deals for flights from London to Allentown that include hotel bookings?

How can I find direct flights from London to Allentown?

Can I find deals for business class flights from London to Allentown?

What is the cheapest month to book a flight from London to Allentown?

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Alternative routes for London to Allentown

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Top airline flying from London to Allentown

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How does Cheapflights help users find flights from London to Allentown?

Why should you use Cheapflights to find cheap flight tickets from London to Allentown?

Can Cheapflights find flights from London to Allentown with no change fees?

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

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Cheapest flights from London to Allentown
Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.