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.

£319 Cheap Flights from Allentown to London in 2026

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14:30 - 19:40

ABE

LHR

24h 10m

2 stops

06:55 - 21:12

LHR

ABE

19h 17m

2 stops

£507United Airlines

Tue, 1 Sep - Tue, 8 Sep

06:15 - 08:35

ABE

LHR

21h 20m

2 stops

07:25 - 10:06

LHR

ABE

31h 41m

2 stops

£543United Airlines

Wed, 19 Aug - Sun, 23 Aug

14:25 - 09:00

ABE

LHR

13h 35m

1 stop

06:50 - 20:58

LHR

ABE

19h 08m

2 stops

£546United Airlines

Tue, 12 May - Wed, 20 May

10:35 - 06:55

ABE

LHR

15h 20m

2 stops

06:50 - 17:00

LHR

ABE

15h 10m

2 stops

£550United Airlines

Tue, 12 May - Tue, 19 May

06:15 - 08:30

ABE

LHR

21h 15m

1 stop

06:50 - 09:48

LHR

ABE

31h 58m

2 stops

£551United Airlines

Wed, 1 Apr - Wed, 8 Apr

06:15 - 09:00

ABE

LHR

21h 45m

1 stop

14:05 - 13:48

LHR

ABE

28h 43m

2 stops

£553United Airlines

Tue, 12 May - Fri, 22 May

06:15 - 06:55

ABE

LHR

19h 40m

2 stops

06:50 - 09:48

LHR

ABE

31h 58m

2 stops

£553United Airlines

Wed, 1 Apr - Wed, 8 Apr

06:15 - 09:00

ABE

LHR

21h 45m

1 stop

17:50 - 17:00

LHR

ABE

28h 10m

2 stops

£556United Airlines

Tue, 12 May - Mon, 18 May

17:59 - 16:40

ABE

LCY

17h 41m

2 stops

09:20 - 23:00

LCY

ABE

18h 40m

2 stops

£981Delta

Tue, 21 Apr - Tue, 28 Apr

17:58 - 16:40

ABE

LCY

17h 42m

2 stops

10:00 - 22:52

LCY

ABE

17h 52m

2 stops

£5,317Delta

Wed, 1 Apr - Wed, 8 Apr

KLM flights from Allentown to London

Our best KLM deals on Allentown to London flight tickets

KLM

21 Apr

ABE12:53Allentown-Bethlehem

12h 32m

1 stop

LHR06:25London Heathrow

28 Apr

LHR09:20London Heathrow

18h 40m

1 stop

ABE23:00Allentown-Bethlehem

£603

KLM

7 May

ABE06:27Allentown-Bethlehem

18h 58m

1 stop

LHR06:25London Heathrow

14 May

LHR09:20London Heathrow

13h 08m

1 stop

ABE17:28Allentown-Bethlehem

£634

KLM

11 Mar

ABE06:32Allentown-Bethlehem

21h 18m

1 stop

LHR07:50London Heathrow

18 Mar

LHR08:55London Heathrow

18h 01m

1 stop

ABE22:56Allentown-Bethlehem

£668

United Airlines flights from Allentown to London

Our best United Airlines deals on Allentown to London flight tickets

United Airlines

1 Sept

ABE14:30Allentown-Bethlehem

24h 10m

2 stops

LHR19:40London Heathrow

8 Sept

LHR06:55London Heathrow

19h 17m

2 stops

ABE21:12Allentown-Bethlehem

£507

United Airlines

19 Aug

ABE06:15Allentown-Bethlehem

21h 20m

2 stops

LHR08:35London Heathrow

23 Aug

LHR07:25London Heathrow

31h 41m

2 stops

ABE10:06Allentown-Bethlehem

£543

United Airlines

12 May

ABE14:25Allentown-Bethlehem

13h 35m

1 stop

LHR09:00London Heathrow

20 May

LHR06:50London Heathrow

19h 08m

2 stops

ABE20:58Allentown-Bethlehem

£546

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 1/9

14:30-19:40

2 stops24h 10m

London Heathrow

Tue 8/9

06:55-21:12

2 stops19h 17m

£507

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 19/8

06:15-08:35

2 stops21h 20m

London Heathrow

Sun 23/8

07:25-10:06

2 stops31h 41m

£543

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 12/5

14:25-09:00

1 stop13h 35m

London Heathrow

Wed 20/5

06:50-20:58

2 stops19h 08m

£546

Fastest return journey

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 12/5

10:35-06:55

2 stops15h 20m

London Heathrow

Tue 19/5

06:50-17:00

2 stops15h 10m

£550

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 1/4

06:15-08:30

1 stop21h 15m

London Heathrow

Wed 8/4

06:50-09:48

2 stops31h 58m

£550

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 12/5

06:15-09:00

1 stop21h 45m

London Heathrow

Fri 22/5

14:05-13:48

2 stops28h 43m

£553

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 1/4

06:15-06:55

2 stops19h 40m

London Heathrow

Wed 8/4

06:50-09:48

2 stops31h 58m

£553

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 12/5

06:15-09:00

1 stop21h 45m

London Heathrow

Mon 18/5

17:50-17:00

2 stops28h 10m

£556

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Tue 21/4

17:59-16:40

2 stops17h 41m

London City

Tue 28/4

09:20-23:00

2 stops18h 40m

£981

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Wed 1/4

17:58-16:40

2 stops17h 42m

London City

Wed 8/4

10:00-22:52

2 stops17h 52m

£5,317

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?

United Airlines, KLM, and Delta 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 39% 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 26m
Direct flights	None

The fastest flight from Allentown to London takes 12h 26m

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

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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 26m, 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

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Wembley

Guildford

Chelmsford

Hayes

Dover

Folkestone

Worthing

Colchester

Bedford

Ramsgate

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 £319

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 5/4. 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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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

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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

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favourite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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