When did momondo last update prices for flights from Allentown-Bethlehem Airport to London?

Prices for flights from Allentown-Bethlehem Airport to London are refreshed on a daily basis.

How old do you have to be to fly from Allentown-Bethlehem Airport to London?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£247 Cheap Flights from Allentown to London in 2026

Find the cheapest flights from Allentown to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

17:36 - 16:50

ABE

LHR

42h 14m

2 stops

11:05 - 21:12

LHR

ABE

39h 07m

2 stops

£626United Airlines

Fri, 15 Jan - Mon, 18 Jan

10:37 - 08:30

ABE

LHR

16h 53m

1 stop

06:50 - 17:08

LHR

ABE

15h 18m

2 stops

£649United Airlines

Mon, 5 Oct - Thu, 15 Oct

17:46 - 11:55

ABE

LHR

13h 09m

1 stop

17:55 - 17:08

LHR

ABE

28h 13m

2 stops

£658United Airlines

Sun, 4 Oct - Mon, 12 Oct

17:46 - 11:55

ABE

LHR

13h 09m

1 stop

07:40 - 16:56

LHR

ABE

13h 16m

1 stop

£671United Airlines

Tue, 13 Oct - Thu, 29 Oct

17:46 - 11:55

ABE

LHR

13h 09m

1 stop

07:40 - 21:02

LHR

ABE

17h 22m

2 stops

£672Multiple Airlines

Sun, 18 Oct - Sun, 25 Oct

06:20 - 10:40

ABE

LHR

23h 20m

2 stops

07:40 - 21:02

LHR

ABE

17h 22m

2 stops

£675Multiple Airlines

Sun, 18 Oct - Sun, 25 Oct

18:09 - 11:20

ABE

LHR

12h 11m

1 stop

09:55 - 22:16

LHR

ABE

17h 21m

2 stops

£686KLM

Mon, 7 Sep - Mon, 14 Sep

18:09 - 16:40

ABE

LCY

17h 31m

2 stops

09:20 - 22:16

LCY

ABE

17h 56m

2 stops

£714Delta

Mon, 7 Sep - Mon, 14 Sep

12:56 - 08:50

ABE

LCY

14h 54m

2 stops

10:00 - 22:29

LCY

ABE

17h 29m

2 stops

£717Delta

Sun, 4 Oct - Mon, 12 Oct

13:10 - 09:30

ABE

LCY

15h 20m

2 stops

09:20 - 22:26

LCY

ABE

18h 06m

2 stops

£1,549KLM

Fri, 4 Sep - Fri, 11 Sep

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KLM flights from Allentown to London

Our best KLM deals on Allentown to London flight tickets

KLM

7 Sept

ABE18:09Allentown-Bethlehem

12h 11m

1 stop

LHR11:20London Heathrow

14 Sept

LHR09:55London Heathrow

17h 21m

2 stops

ABE22:16Allentown-Bethlehem

£686

KLM

4 Sept

ABE13:10Allentown-Bethlehem

15h 20m

2 stops

LCY09:30London City

11 Sept

LCY09:20London City

18h 06m

2 stops

ABE22:26Allentown-Bethlehem

£1,549

KLM

20 Aug

ABE13:10Allentown-Bethlehem

14h 40m

2 stops

LCY08:50London City

26 Aug

LCY09:20London City

18h 03m

2 stops

ABE22:23Allentown-Bethlehem

£1,559

Virgin Atlantic flights from Allentown to London

Our best Virgin Atlantic deals on Allentown to London flight tickets

Virgin Atlantic

7 Sept

ABE18:09Allentown-Bethlehem

14h 06m

1 stop

LHR13:15London Heathrow

14 Sept

LHR13:25London Heathrow

13h 51m

1 stop

ABE22:16Allentown-Bethlehem

£702

Virgin Atlantic

9 Aug

ABE18:08Allentown-Bethlehem

14h 07m

1 stop

LHR13:15London Heathrow

14 Aug

LHR11:15London Heathrow

16h 08m

1 stop

ABE22:23Allentown-Bethlehem

£1,036

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Fri 15/1

17:36-16:50

2 stops42h 14m

London Heathrow

Mon 18/1

11:05-21:12

2 stops39h 07m

£626

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 5/10

10:37-08:30

1 stop16h 53m

London Heathrow

Thu 15/10

06:50-17:08

2 stops15h 18m

£649

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 4/10

17:46-11:55

1 stop13h 09m

London Heathrow

Mon 12/10

17:55-17:08

2 stops28h 13m

£658

Fastest return journey

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 13/10

17:46-11:55

1 stop13h 09m

London Heathrow

Thu 29/10

07:40-16:56

1 stop13h 16m

£671

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 18/10

17:46-11:55

1 stop13h 09m

London Heathrow

Sun 25/10

07:40-21:02

2 stops17h 22m

£672

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 18/10

06:20-10:40

2 stops23h 20m

London Heathrow

Sun 25/10

07:40-21:02

2 stops17h 22m

£674

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 7/9

18:09-11:20

1 stop12h 11m

London Heathrow

Mon 14/9

09:55-22:16

2 stops17h 21m

£686

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Mon 7/9

18:09-16:40

2 stops17h 31m

London City

Mon 14/9

09:20-22:16

2 stops17h 56m

£714

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Sun 4/10

12:56-08:50

2 stops14h 54m

London City

Mon 12/10

10:00-22:29

2 stops17h 29m

£717

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Fri 4/9

13:10-09:30

2 stops15h 20m

London City

Fri 11/9

09:20-22:26

2 stops18h 06m

£1,549

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Allentown to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Allentown-Bethlehem to London?

Delta and United Airlines are the most popular carriers operating from Allentown-Bethlehem to London

Which airlines fly to London?

United Airlines, British Airways and Lufthansa are the top three most popular airlines that fly to London from Allentown according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

When to book flights from Allentown to London

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Allentown to London (ABE to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to London

Fastest flight time	13h 03m
Direct flights	None

The fastest flight from Allentown to London takes 13h 03m

There are no direct flights from Allentown to London. There are no popular flight routes from Allentown to London.

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Frequently asked questions about flying from Allentown to London

How far is Allentown-Bethlehem to London by plane?
The distance between Allentown-Bethlehem and London is about 3523.4 mi. Flights usually cover this in 13h 03m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Allentown-Bethlehem Airport to London?
Prices for flights from Allentown-Bethlehem Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Allentown-Bethlehem Airport to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Allentown-Bethlehem Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Guildford

Chichester

Hayes

Bedford

Colchester

Harlow

Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to London?

Finding the right flight to London from Allentown is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Allentown to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Allentown to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Allentown to London?

momondo helps you find the best flight between Allentown and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Allentown to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Allentown to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Allentown to London from £247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to London departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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KLM flights from Allentown to London

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Our best Virgin Atlantic deals on Allentown to London flight tickets

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How to get the cheapest flight ticket from Allentown to London

What is the cheapest airline that flies from Allentown-Bethlehem to London?

Which airlines fly to London?

When to book flights from Allentown to London

Cheap Allentown to London (ABE to LON) flight deals and tips

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Direct flights

Frequently asked questions about flying from Allentown to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

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