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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to London.

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

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$329 Cheap Flights from Allentown to London in 2026

Find the cheapest flights from Allentown to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:28 pm - 10:00 am

ABE

LGW

14h 32m

1 stop

2:00 pm - 9:07 pm

LGW

ABE

36h 07m

2 stops

$792Multiple Airlines

Thu, Aug 20 - Wed, Aug 26

2:28 pm - 10:00 am

ABE

LGW

14h 32m

1 stop

2:00 pm - 8:31 pm

LGW

ABE

35h 31m

1 stop

$797Multiple Airlines

Thu, Aug 20 - Wed, Aug 26

5:36 pm - 4:50 pm

ABE

LHR

42h 14m

2 stops

11:05 am - 9:12 pm

LHR

ABE

39h 07m

2 stops

$834United Airlines

Fri, Jan 15 - Mon, Jan 18

10:37 am - 8:30 am

ABE

LHR

16h 53m

1 stop

6:50 am - 5:08 pm

LHR

ABE

15h 18m

2 stops

$865United Airlines

Mon, Oct 5 - Thu, Oct 15

5:46 pm - 11:55 am

ABE

LHR

13h 09m

1 stop

5:55 pm - 5:08 pm

LHR

ABE

28h 13m

2 stops

$877United Airlines

Sun, Oct 4 - Mon, Oct 12

5:46 pm - 11:55 am

ABE

LHR

13h 09m

1 stop

7:40 am - 4:56 pm

LHR

ABE

13h 16m

1 stop

$894United Airlines

Tue, Oct 13 - Thu, Oct 29

6:09 pm - 11:20 am

ABE

LHR

12h 11m

1 stop

9:55 am - 10:16 pm

LHR

ABE

17h 21m

2 stops

$914KLM

Mon, Sep 7 - Mon, Sep 14

12:56 pm - 9:25 am

ABE

LGW

15h 29m

2 stops

10:25 am - 10:16 pm

LGW

ABE

16h 51m

2 stops

$947Delta

Wed, Sep 9 - Fri, Sep 18

6:09 pm - 4:40 pm

ABE

LCY

17h 31m

2 stops

9:20 am - 10:16 pm

LCY

ABE

17h 56m

2 stops

$952Delta

Mon, Sep 7 - Mon, Sep 14

1:10 pm - 9:30 am

ABE

LCY

15h 20m

2 stops

9:20 am - 10:26 pm

LCY

ABE

18h 06m

2 stops

$2,064KLM

Fri, Sep 4 - Fri, Sep 11

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Delta flights from Allentown to London

Our best Delta deals on Allentown to London flight tickets

Delta

Aug 23

ABE6:16 amAllentown-Bethlehem

19h 54m

2 stops

LHR7:10 amLondon Heathrow

Sep 1

LHR9:55 amLondon Heathrow

17h 28m

2 stops

ABE10:23 pmAllentown-Bethlehem

$940

Delta

Sep 9

ABE12:56 pmAllentown-Bethlehem

15h 29m

2 stops

LGW9:25 amLondon Gatwick

Sep 18

LGW10:25 amLondon Gatwick

16h 51m

2 stops

ABE10:16 pmAllentown-Bethlehem

$947

Delta

Aug 22

ABE1:10 pmAllentown-Bethlehem

18h 55m

2 stops

LHR1:05 pmLondon Heathrow

Sep 1

LHR9:55 amLondon Heathrow

17h 28m

2 stops

ABE10:23 pmAllentown-Bethlehem

$951

United Airlines flights from Allentown to London

Our best United Airlines deals on Allentown to London flight tickets

United Airlines

Jan 15

ABE5:36 pmAllentown-Bethlehem

42h 14m

2 stops

LHR4:50 pmLondon Heathrow

Jan 18

LHR11:05 amLondon Heathrow

39h 07m

2 stops

ABE9:12 pmAllentown-Bethlehem

$834

United Airlines

Oct 5

ABE10:37 amAllentown-Bethlehem

16h 53m

1 stop

LHR8:30 amLondon Heathrow

Oct 15

LHR6:50 amLondon Heathrow

15h 18m

2 stops

ABE5:08 pmAllentown-Bethlehem

$865

United Airlines

Oct 4

ABE5:46 pmAllentown-Bethlehem

13h 09m

1 stop

LHR11:55 amLondon Heathrow

Oct 12

LHR5:55 pmLondon Heathrow

28h 13m

2 stops

ABE5:08 pmAllentown-Bethlehem

$877

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownLondon

ABE - LGW

ABELGW

Allentown-Bethlehem

Thu 8/20

2:28 pm-10:00 am

1 stop14h 32m

London Gatwick

Wed 8/26

2:00 pm-9:07 pm

2 stops36h 07m

$792

AllentownLondon

ABE - LGW

ABELGW

Allentown-Bethlehem

Thu 8/20

2:28 pm-10:00 am

1 stop14h 32m

London Gatwick

Wed 8/26

2:00 pm-8:31 pm

1 stop35h 31m

$797

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Fri 1/15

5:36 pm-4:50 pm

2 stops42h 14m

London Heathrow

Mon 1/18

11:05 am-9:12 pm

2 stops39h 07m

$834

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 10/5

10:37 am-8:30 am

1 stop16h 53m

London Heathrow

Thu 10/15

6:50 am-5:08 pm

2 stops15h 18m

$865

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 10/4

5:46 pm-11:55 am

1 stop13h 09m

London Heathrow

Mon 10/12

5:55 pm-5:08 pm

2 stops28h 13m

$877

Quickest round-trip

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 10/13

5:46 pm-11:55 am

1 stop13h 09m

London Heathrow

Thu 10/29

7:40 am-4:56 pm

1 stop13h 16m

$894

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 9/7

6:09 pm-11:20 am

1 stop12h 11m

London Heathrow

Mon 9/14

9:55 am-10:16 pm

2 stops17h 21m

$914

AllentownLondon

ABE - LGW

ABELGW

Allentown-Bethlehem

Wed 9/9

12:56 pm-9:25 am

2 stops15h 29m

London Gatwick

Fri 9/18

10:25 am-10:16 pm

2 stops16h 51m

$947

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Mon 9/7

6:09 pm-4:40 pm

2 stops17h 31m

London City

Mon 9/14

9:20 am-10:16 pm

2 stops17h 56m

$952

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Fri 9/4

1:10 pm-9:30 am

2 stops15h 20m

London City

Fri 9/11

9:20 am-10:26 pm

2 stops18h 06m

$2,064

Flights are sorted by cheapest round-trip 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

What airlines fly to London?

United Airlines, British Airways and American Airlines 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 52% of people opting to fly with this airline when traveling to London. Keep in mind that there are 17 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 round-trip 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?
There are 3523.4 mi between Allentown-Bethlehem and London. In terms of flight time, this usually takes a little over 13h 03m.
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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Dover

Crawley

Wembley

Croydon

Stansted

Kingston upon Thames

Watford

Slough

Harrow

Brentwood

Cobham

Romford

Uxbridge

Guildford

Worthing

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Allentown to London for you.

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

Yes. All flights to London from Allentown on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Yes momondo offers price alerts on flights to London from Allentown. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London trip

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Cheap flights from Allentown to London from $329

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 8/1. 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

Our best Delta deals on Allentown to London flight tickets

United Airlines flights from Allentown to London

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?

What airlines fly to London?

When to book flights from Allentown to London

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Allentown to London

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize 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 favorite airline to London

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

Cabin classes currently available on flights to London

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

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Allentown

According to popular flight searches on momondo this year

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