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Cheap flights from London to New York from £427

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 New York 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.
1 adult
1 adult, Economy, 0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
18:05 - 11:27
LHR
-
ABE
22h 22m
2 stops
American Airlines Logo
12:00 - 10:15
ABE
-
LHR
17h 15m
2 stops
£649American Airlines
Tue, 14 Apr - Mon, 20 Apr
American Airlines Logo
18:05 - 11:27
LHR
-
ABE
22h 22m
2 stops
American Airlines Logo
12:00 - 10:15
ABE
-
LHR
17h 15m
2 stops
£650American Airlines
Fri, 17 Apr - Mon, 20 Apr
American Airlines Logo
08:15 - 00:22
LHR
-
ABE
21h 07m
2 stops
American Airlines Logo
06:04 - 06:55
ABE
-
LHR
19h 51m
1 stop
£658American Airlines
Fri, 17 Apr - Thu, 23 Apr
Virgin Atlantic Logo
13:25 - 23:00
LHR
-
ABE
14h 35m
1 stop
Virgin Atlantic Logo
12:53 - 07:15
ABE
-
LHR
13h 22m
1 stop
£669Virgin Atlantic
Fri, 17 Apr - Tue, 21 Apr
American Airlines Logo
11:35 - 00:22
LHR
-
ABE
17h 47m
2 stops
American Airlines Logo
12:00 - 10:15
ABE
-
LHR
17h 15m
2 stops
£679American Airlines
Thu, 16 Apr - Mon, 20 Apr
American Airlines Logo
08:15 - 23:28
LHR
-
ABE
20h 13m
2 stops
American Airlines Logo
12:57 - 09:50
ABE
-
LHR
15h 53m
2 stops
£687American Airlines
Tue, 14 Apr - Tue, 21 Apr
American Airlines Logo
12:00 - 00:22
LHR
-
ABE
17h 22m
1 stop
American Airlines Logo
06:04 - 09:05
ABE
-
LHR
22h 01m
1 stop
£687American Airlines
Fri, 17 Apr - Thu, 23 Apr
American Airlines Logo
08:15 - 00:22
LHR
-
ABE
21h 07m
2 stops
American Airlines Logo
12:00 - 08:30
ABE
-
LHR
15h 30m
2 stops
£688American Airlines
Fri, 17 Apr - Fri, 24 Apr
Delta Logo
11:20 - 23:00
LHR
-
ABE
16h 40m
2 stops
Delta Logo
12:53 - 12:35
ABE
-
LHR
18h 42m
2 stops
£697Delta
Sat, 18 Apr - Mon, 20 Apr
KLM Logo
18:35 - 17:19
LHR
-
ABE
51h 44m
2 stops
KLM Logo
17:59 - 06:25
ABE
-
LHR
31h 26m
1 stop
£712KLM
Sun, 12 Apr - Sun, 19 Apr

United Airlines flights from London to Allentown

Our best United Airlines deals on London to Allentown flight tickets
United Airlines
22 Apr
LHR07:30London Heathrow
31h 18m
2 stops
ABE09:48Allentown-Bethlehem
26 Apr
ABE17:43Allentown-Bethlehem
33h 47m
1 stop
LHR08:30London Heathrow
£787
United Airlines
22 Apr
LHR09:30London Heathrow
29h 18m
2 stops
ABE09:48Allentown-Bethlehem
26 Apr
ABE17:43Allentown-Bethlehem
35h 32m
2 stops
LHR10:15London Heathrow
£792
United Airlines
22 Apr
LHR08:00London Heathrow
14h 03m
1 stop
ABE17:03Allentown-Bethlehem
26 Apr
ABE06:15Allentown-Bethlehem
19h 30m
1 stop
LHR06:45London Heathrow
£840

American Airlines flights from London to Allentown

Our best American Airlines deals on London to Allentown flight tickets
American Airlines
14 Apr
LHR18:05London Heathrow
22h 22m
2 stops
ABE11:27Allentown-Bethlehem
20 Apr
ABE12:00Allentown-Bethlehem
17h 15m
2 stops
LHR10:15London Heathrow
£649
American Airlines
17 Apr
LHR18:05London Heathrow
22h 22m
2 stops
ABE11:27Allentown-Bethlehem
20 Apr
ABE12:00Allentown-Bethlehem
17h 15m
2 stops
LHR10:15London Heathrow
£650
American Airlines
17 Apr
LHR08:15London Heathrow
21h 07m
2 stops
ABE00:22Allentown-Bethlehem
23 Apr
ABE06:04Allentown-Bethlehem
19h 51m
1 stop
LHR06:55London Heathrow
£658

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 22 March 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

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 14/4

18:05-11:27

2 stops22h 22m

Allentown-Bethlehem

Mon 20/4

12:00-10:15

2 stops17h 15m

£649

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 17/4

18:05-11:27

2 stops22h 22m

Allentown-Bethlehem

Mon 20/4

12:00-10:15

2 stops17h 15m

£650

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 17/4

08:15-00:22

2 stops21h 07m

Allentown-Bethlehem

Thu 23/4

06:04-06:55

1 stop19h 51m

£658
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 17/4

13:25-23:00

1 stop14h 35m

Allentown-Bethlehem

Tue 21/4

12:53-07:15

1 stop13h 22m

£669

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 16/4

11:35-00:22

2 stops17h 47m

Allentown-Bethlehem

Mon 20/4

12:00-10:15

2 stops17h 15m

£679

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 14/4

08:15-23:28

2 stops20h 13m

Allentown-Bethlehem

Tue 21/4

12:57-09:50

2 stops15h 53m

£687

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 17/4

12:00-00:22

1 stop17h 22m

Allentown-Bethlehem

Thu 23/4

06:04-09:05

1 stop22h 01m

£687

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 17/4

08:15-00:22

2 stops21h 07m

Allentown-Bethlehem

Fri 24/4

12:00-08:30

2 stops15h 30m

£688

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 18/4

11:20-23:00

2 stops16h 40m

Allentown-Bethlehem

Mon 20/4

12:53-12:35

2 stops18h 42m

£697

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 12/4

18:35-17:19

2 stops51h 44m

Allentown-Bethlehem

Sun 19/4

17:59-06:25

1 stop31h 26m

£712

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 New York 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?

Delta 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 45% 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

14h 35m

Direct flights

None
The fastest flight from London to Allentown takes 14h 35m
There are no direct flights from London to Allentown. There are no popular flight routes from London to Allentown.
Search flight deals

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

    Allentown-Bethlehem is 3523.4 mi away from London. Flights usually cover this in 14h 35m, 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.

An easier way to manage your Allentown 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.
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