737 € Cheap Flights from London to Allentown

Compare London to Allentown flight deals

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Flight deals from London to Allentown Airport

Looking for a cheap last-minute deal or the best return flight from London to Allentown Airport? If you want to travel next month, return fares start from 987 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Allentown

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Allentown flights are currently cheapest in September.

London to Allentown: Flight information

The things to know before you go.
Cheapest flight found737 €
Cheapest month to flySeptember

Finding cheap flights from London to Allentown: Frequently asked questions

The best price we found for a return flight from London to Allentown is 737 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Allentown. But we found flights with one stop from 737 €.
As of March 2026, there are no flights flying from London to Allentown.
The cheapest month to fly from London to Allentown is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Allentown Airport on Tuesday, 1 September 2026.
No airlines currently offer direct flights between London and Allentown Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Allentown but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Allentown is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Allentown is Delta .

Travelling from London to Lehigh Valley International Airport (ABE): What you need to know

  • When planning your flight from London to Lehigh Valley International Airport (ABE), you'll have a good range of airports to leave from. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure options. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Allentown is four hours behind London. Lehigh Valley International Airport is located in Allentown, which follows the UTC-4 timezone.

  • To ensure you get on your flight from London to ABE, leave enough time to navigate the airport and find your gate. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.

  • Planning to travel during a peak time like public or school holidays? Expect longer lines at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in London

London Heathrow Airport (LHR)

  • Consider adding a stopover to find cheap flights from London to ABE. Just deselect 'Direct flights only' when searching for departures from London Heathrow Airport (LHR). Break up your trip (and maybe get a better deal) by stopping at one of these airports:

    • O'Hare International Airport (ORD)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Charlotte Douglas International Airport (CLT)

  • LHR is around 31 kilometres from central London. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 55 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be around 1 hour.

  • In search of a comfortable hotel close to London Heathrow Airport? If you've booked an early flight from London to Lehigh Valley International Airport, these accommodation options will put you moments from your check-in counter:

  • When it comes to the on-time performance of London Heathrow Airport, 68.18% of flights arrive within the scheduled time frame.

London Gatwick Airport (LGW)

  • Get the most out of your holiday with a stopover on your flight from London to Lehigh Valley International Airport. Orlando International Airport (MCO) is a great option between London Gatwick Airport and ABE.

  • On public transport, you can travel from central London to LGW in around 30 minutes. The airport is roughly 80 kilometres away, and getting there by car will take approximately 1 hour 20 minutes.

  • Taking off bright and early? You might like to check in to one of these hotels near London Gatwick Airport the day before your London to ABE flight:

  • London Gatwick Airport has an on-time performance of 69.26%. This figure shows how often flights that depart from this airport land at their destination on time.

Stansted Airport (STN)

  • STN is roughly 64 kilometres from central London. The drive from the city centre to the terminal takes about 1 hour. If you're considering public transport, expect a journey time of around 1 hour 25 minutes.

  • Make catching an early London to Lehigh Valley International Airport flight the easiest part of your journey. Book a room at one of these accommodation options close to Stansted Airport and get to your gate with time to spare:

  • The on-time performance record of STN is 64.73%. In other words, that's how often flights that depart this airport arrive at their destination as planned.

About Lehigh Valley International Airport (ABE)

Getting from Lehigh Valley International Airport (ABE) to central Allentown

  • Lehigh Valley International Airport is roughly 6 kilometres from central Allentown. How long it takes to get to the centre in a car hire or cab will depend on the time of day. Do a little research before your trip.

  • It'll take around 30 minutes if you're using public transport.

How to find the cheapest flights from London to Lehigh Valley International Airport (ABE)

  • Right now, 353 € is the best price we've found for a one-way ticket from London to Lehigh Valley International Airport. The cheapest price for a return flight is 737 €. Keep in mind fares can change due to availability at the time of booking.

  • Booking early is often the key to scoring a cheap flight from London to ABE. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely pay.

  • Cheap London to Lehigh Valley International Airport tickets are easier to find when your dates are flexible. Try using the 'Whole month' search tool to compare fares across each month and then fly out on the cheapest day.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as a better deal is available on plane tickets from London to ABE.

  • Find an affordable flight from London to Lehigh Valley International Airport by using the search filters. Choose your preferred times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

The best time to fly from London to Lehigh Valley International Airport (ABE)

  • April is the quietest month for flights from London to Lehigh Valley International Airport (ABE), while July is the busiest. Find the best time to go to Allentown based on whether you prefer a lively atmosphere or a more laid-back vibe.

  • Lock in a London to ABE plane ticket departing in July if you want to explore the city during its warmest month. Expect temperatures in Allentown to range from 15ºC (59ºF) to 30ºC (86ºF).

  • Look for cheap tickets from London to Lehigh Valley International Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -9ºC (16ºF) and 7ºC (45ºF).

More about Allentown

Explore more of the United States

  • New York is just one of the many places in the United States waiting to be explored after you've experienced Allentown. Around 121 kilometres away to the east, check out popular attractions including Central Park, Manhattan Skyline and Statue of Liberty.

  • Around 177 kilometres south-west of Allentown, Baltimore is another favourite stop in the United States. No visit is complete without checking out Baltimore Aquarium, National Aquarium and Washington Monument and Mount Vernon Place.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.