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.

£250 Cheap Flights from Allentown to London in 2026

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Find the cheapest flights from Allentown to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:38 - 12:00

ABE

LHR

20h 22m

1 stop

06:50 - 16:56

LHR

ABE

15h 06m

2 stops

£569United Airlines

Wed, 4 Nov - Fri, 6 Nov

10:38 - 10:25

ABE

LHR

18h 47m

2 stops

06:50 - 16:56

LHR

ABE

15h 06m

2 stops

£573United Airlines

Wed, 4 Nov - Fri, 6 Nov

17:46 - 09:00

ABE

LHR

34h 14m

1 stop

06:50 - 09:35

LHR

ABE

31h 45m

2 stops

£576United Airlines

Sat, 10 Oct - Tue, 13 Oct

17:46 - 09:00

ABE

LHR

34h 14m

1 stop

06:50 - 09:35

LHR

ABE

31h 45m

2 stops

£577United Airlines

Sat, 10 Oct - Tue, 13 Oct

10:37 - 10:15

ABE

LHR

18h 38m

2 stops

08:00 - 17:02

LHR

ABE

14h 02m

1 stop

£585United Airlines

Sun, 27 Sep - Tue, 29 Sep

10:37 - 10:15

ABE

LHR

18h 38m

2 stops

09:30 - 09:35

LHR

ABE

29h 05m

2 stops

£588United Airlines

Sun, 27 Sep - Tue, 29 Sep

18:13 - 16:40

ABE

LCY

17h 27m

2 stops

10:00 - 22:16

LCY

ABE

17h 16m

2 stops

£1,335Delta

Tue, 1 Sep - Tue, 22 Sep

13:00 - 13:15

ABE

LCY

19h 15m

2 stops

10:00 - 22:46

LCY

ABE

17h 46m

2 stops

£1,405Delta

Sat, 10 Oct - Tue, 13 Oct

13:00 - 13:15

ABE

LCY

19h 15m

2 stops

08:25 - 22:46

LCY

ABE

19h 21m

2 stops

£1,453Delta

Sat, 10 Oct - Tue, 13 Oct

13:08 - 08:50

ABE

LCY

14h 42m

2 stops

10:00 - 23:08

LCY

ABE

18h 08m

2 stops

£7,626KLM

Fri, 17 Jul - Fri, 24 Jul

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Delta flights from Allentown to London

Our best Delta deals on Allentown to London flight tickets

Delta

20 Oct

ABE13:00Allentown-Bethlehem

12h 25m

1 stop

LHR06:25London Heathrow

27 Oct

LHR08:55London Heathrow

17h 51m

1 stop

ABE22:46Allentown-Bethlehem

£678

Delta

23 Sept

ABE18:13Allentown-Bethlehem

12h 07m

1 stop

LHR11:20London Heathrow

30 Sept

LHR09:20London Heathrow

17h 56m

1 stop

ABE22:16Allentown-Bethlehem

£679

Delta

26 Sept

ABE18:13Allentown-Bethlehem

32h 02m

1 stop

LHR07:15London Heathrow

30 Sept

LHR09:20London Heathrow

13h 01m

1 stop

ABE17:21Allentown-Bethlehem

£683

United Airlines flights from Allentown to London

Our best United Airlines deals on Allentown to London flight tickets

United Airlines

4 Nov

ABE10:38Allentown-Bethlehem

20h 22m

1 stop

LHR12:00London Heathrow

6 Nov

LHR06:50London Heathrow

15h 06m

2 stops

ABE16:56Allentown-Bethlehem

£569

United Airlines

4 Nov

ABE10:38Allentown-Bethlehem

18h 47m

2 stops

LHR10:25London Heathrow

6 Nov

LHR06:50London Heathrow

15h 06m

2 stops

ABE16:56Allentown-Bethlehem

£573

United Airlines

10 Oct

ABE17:46Allentown-Bethlehem

34h 14m

1 stop

LHR09:00London Heathrow

13 Oct

LHR06:50London Heathrow

31h 45m

2 stops

ABE09:35Allentown-Bethlehem

£576

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 4/11

10:38-12:00

1 stop20h 22m

London Heathrow

Fri 6/11

06:50-16:56

2 stops15h 06m

£569

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 4/11

10:38-10:25

2 stops18h 47m

London Heathrow

Fri 6/11

06:50-16:56

2 stops15h 06m

£573

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sat 10/10

17:46-09:00

1 stop34h 14m

London Heathrow

Tue 13/10

06:50-09:35

2 stops31h 45m

£576

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sat 10/10

17:46-09:00

1 stop34h 14m

London Heathrow

Tue 13/10

06:50-09:35

2 stops31h 45m

£577

Fastest return journey

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 27/9

10:37-10:15

2 stops18h 38m

London Heathrow

Tue 29/9

08:00-17:02

1 stop14h 02m

£585

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 27/9

10:37-10:15

2 stops18h 38m

London Heathrow

Tue 29/9

09:30-09:35

2 stops29h 05m

£588

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Tue 1/9

18:13-16:40

2 stops17h 27m

London City

Tue 22/9

10:00-22:16

2 stops17h 16m

£1,335

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Sat 10/10

13:00-13:15

2 stops19h 15m

London City

Tue 13/10

10:00-22:46

2 stops17h 46m

£1,405

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Sat 10/10

13:00-13:15

2 stops19h 15m

London City

Tue 13/10

08:25-22:46

2 stops19h 21m

£1,453

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Fri 17/7

13:08-08:50

2 stops14h 42m

London City

Fri 24/7

10:00-23:08

2 stops18h 08m

£7,626

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 48% of people opting to fly with this airline when travelling to London. Keep in mind that there are 5 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	12h 15m
Direct flights	None

The fastest flight from Allentown to London takes 12h 15m

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 12h 15m, 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

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Gatwick

Luton

Wembley

Slough

Maidstone

Southend-on-Sea

Ipswich

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Canterbury

Guildford

Hayes

Folkestone

Chelmsford

Dover

Bedford

Chichester

Harlow

Colchester

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 £250

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 3/11. 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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Delta flights from Allentown to London

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Our best United Airlines 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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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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