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Cheap flights from London to Allentown from £458

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Allentown departing on 24/8. 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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0 bags
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Find the cheapest flights from London to Allentown

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
06:15 - 17:25
LHR
-
ABE
16h 10m
2 stops
Delta Logo
18:05 - 13:15
ABE
-
LHR
14h 10m
1 stop
£725Delta
Tue, 7 Jul - Tue, 14 Jul
Delta Logo
16:20 - 12:22
LHR
-
ABE
25h 02m
2 stops
Delta Logo
13:08 - 10:20
ABE
-
LHR
16h 12m
2 stops
£733Delta
Wed, 8 Jul - Tue, 14 Jul
Delta Logo
17:45 - 12:22
LHR
-
ABE
23h 37m
2 stops
Delta Logo
13:08 - 06:25
ABE
-
LHR
12h 17m
1 stop
£755Delta
Mon, 6 Jul - Mon, 13 Jul
American Airlines Logo
09:15 - 23:23
LHR
-
ABE
19h 08m
2 stops
American Airlines Logo
17:12 - 10:30
ABE
-
LHR
12h 18m
1 stop
£763American Airlines
Thu, 9 Jul - Wed, 15 Jul
American Airlines Logo
12:15 - 16:42
LHR
-
ABE
33h 27m
1 stop
American Airlines Logo
19:09 - 09:05
ABE
-
LHR
32h 56m
1 stop
£765American Airlines
Tue, 7 Jul - Sun, 12 Jul
Multiple Airlines Logo
06:15 - 17:30
LHR
-
ABE
16h 15m
2 stops
Multiple Airlines Logo
18:09 - 09:50
ABE
-
LHR
58h 41m
2 stops
£777Multiple Airlines
Wed, 17 Jun - Sat, 27 Jun
Multiple Airlines Logo
09:20 - 17:30
LHR
-
ABE
13h 10m
1 stop
Multiple Airlines Logo
18:09 - 09:50
ABE
-
LHR
58h 41m
2 stops
£785Multiple Airlines
Wed, 17 Jun - Sat, 27 Jun
Delta Logo
06:15 - 17:25
LHR
-
ABE
16h 10m
2 stops
Delta Logo
18:05 - 07:15
ABE
-
LHR
32h 10m
1 stop
£786Delta
Tue, 7 Jul - Sat, 11 Jul
American Airlines Logo
09:45 - 23:44
LHR
-
ABE
18h 59m
1 stop
American Airlines Logo
19:10 - 12:10
ABE
-
LHR
12h 00m
1 stop
£794American Airlines
Sat, 4 Jul - Sat, 11 Jul
Delta Logo
16:00 - 12:07
LHR
-
ABE
25h 07m
2 stops
Delta Logo
13:08 - 06:25
ABE
-
LHR
12h 17m
1 stop
£794Delta
Fri, 10 Jul - Mon, 13 Jul

Delta flights from London to Allentown

Our best Delta deals on London to Allentown flight tickets
Delta
7 Jul
LHR06:15London Heathrow
16h 10m
2 stops
ABE17:25Allentown-Bethlehem
14 Jul
ABE18:05Allentown-Bethlehem
14h 10m
1 stop
LHR13:15London Heathrow
£725
Delta
8 Jul
LHR16:20London Heathrow
25h 02m
2 stops
ABE12:22Allentown-Bethlehem
14 Jul
ABE13:08Allentown-Bethlehem
16h 12m
2 stops
LHR10:20London Heathrow
£733
Delta
6 Jul
LHR17:45London Heathrow
23h 37m
2 stops
ABE12:22Allentown-Bethlehem
13 Jul
ABE13:08Allentown-Bethlehem
12h 17m
1 stop
LHR06:25London Heathrow
£755

American Airlines flights from London to Allentown

Our best American Airlines deals on London to Allentown flight tickets
American Airlines
9 Jul
LHR09:15London Heathrow
19h 08m
2 stops
ABE23:23Allentown-Bethlehem
15 Jul
ABE17:12Allentown-Bethlehem
12h 18m
1 stop
LHR10:30London Heathrow
£763
American Airlines
7 Jul
LHR12:15London Heathrow
33h 27m
1 stop
ABE16:42Allentown-Bethlehem
12 Jul
ABE19:09Allentown-Bethlehem
32h 56m
1 stop
LHR09:05London Heathrow
£765
American Airlines
4 Jul
LHR09:45London Heathrow
18h 59m
1 stop
ABE23:44Allentown-Bethlehem
11 Jul
ABE19:10Allentown-Bethlehem
12h 00m
1 stop
LHR12:10London Heathrow
£794

momondo Fare Finder

 
Customise your flight search to find flights from London to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 9 May 2026.
Use the filters below to find and compare flights from London to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 7/7

06:15-17:25

2 stops16h 10m

Allentown-Bethlehem

Tue 14/7

18:05-13:15

1 stop14h 10m

£725

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 8/7

16:20-12:22

2 stops25h 02m

Allentown-Bethlehem

Tue 14/7

13:08-10:20

2 stops16h 12m

£733

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 6/7

17:45-12:22

2 stops23h 37m

Allentown-Bethlehem

Mon 13/7

13:08-06:25

1 stop12h 17m

£755

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 9/7

09:15-23:23

2 stops19h 08m

Allentown-Bethlehem

Wed 15/7

17:12-10:30

1 stop12h 18m

£763

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 7/7

12:15-16:42

1 stop33h 27m

Allentown-Bethlehem

Sun 12/7

19:09-09:05

1 stop32h 56m

£765

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 17/6

06:15-17:30

2 stops16h 15m

Allentown-Bethlehem

Sat 27/6

18:09-09:50

2 stops58h 41m

£777

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 17/6

09:20-17:30

1 stop13h 10m

Allentown-Bethlehem

Sat 27/6

18:09-09:50

2 stops58h 41m

£785

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 7/7

06:15-17:25

2 stops16h 10m

Allentown-Bethlehem

Sat 11/7

18:05-07:15

1 stop32h 10m

£786

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 4/7

09:45-23:44

1 stop18h 59m

Allentown-Bethlehem

Sat 11/7

19:10-12:10

1 stop12h 00m

£794

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 10/7

16:00-12:07

2 stops25h 07m

Allentown-Bethlehem

Mon 13/7

13:08-06:25

1 stop12h 17m

£794

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Allentown from

How to get the cheapest flight ticket from London to Allentown

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 London to Allentown-Bethlehem?

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

Which airlines fly to Allentown?

British Airways, Lufthansa and United Airlines are the top three most popular airlines that fly to Allentown from London according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Allentown. Keep in mind that there are 16 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

When to book flights from London to Allentown

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

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

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

Fastest flight time

13h 08m

Direct flights

None
The fastest flight from London to Allentown takes 13h 08m
There are no direct flights from London to Allentown. There are no popular flight routes from London to Allentown.
Search flight deals

Frequently asked questions about flying from London to Allentown

  • How far is London to Allentown-Bethlehem by plane?

    Allentown-Bethlehem is 3523.4 mi away from London. Flights usually cover this in 13h 08m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Allentown-Bethlehem Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The travel and health documents you'll need for your trip to Allentown-Bethlehem Airport 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 Allentown-Bethlehem Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Allentown from London.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Allentown from London.

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

If you are not ready to book a flight from London to Allentown now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Allentown and let you know when they change.

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