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Cheap flights from London to Allentown from £420

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 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.
1 adult
1 adult, Economy, 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.
Virgin Atlantic Logo
16:50 - 22:29
LHR
-
ABE
34h 39m
2 stops
Virgin Atlantic Logo
18:00 - 07:50
ABE
-
LHR
32h 50m
1 stop
£685Virgin Atlantic
Mon, 2 Nov - Sun, 8 Nov
United Airlines Logo
08:45 - 09:39
LHR
-
ABE
29h 54m
2 stops
United Airlines Logo
10:32 - 11:55
ABE
-
LHR
20h 23m
1 stop
£694United Airlines
Thu, 17 Sep - Mon, 21 Sep
Virgin Atlantic Logo
16:50 - 22:29
LHR
-
ABE
34h 39m
2 stops
Virgin Atlantic Logo
18:00 - 13:50
ABE
-
LHR
38h 50m
2 stops
£700Virgin Atlantic
Mon, 2 Nov - Sun, 8 Nov
Virgin Atlantic Logo
08:55 - 17:15
LHR
-
ABE
13h 20m
1 stop
Virgin Atlantic Logo
18:00 - 06:25
ABE
-
LHR
31h 25m
1 stop
£703Virgin Atlantic
Mon, 2 Nov - Sun, 8 Nov
United Airlines Logo
08:45 - 09:39
LHR
-
ABE
29h 54m
2 stops
United Airlines Logo
17:36 - 20:40
ABE
-
LHR
22h 04m
2 stops
£711United Airlines
Thu, 17 Sep - Mon, 21 Sep
United Airlines Logo
14:10 - 09:39
LHR
-
ABE
24h 29m
1 stop
United Airlines Logo
17:36 - 11:55
ABE
-
LHR
13h 19m
1 stop
£722United Airlines
Thu, 17 Sep - Mon, 21 Sep
United Airlines Logo
11:05 - 09:58
LHR
-
ABE
27h 53m
1 stop
United Airlines Logo
17:41 - 11:55
ABE
-
LHR
13h 14m
1 stop
£751United Airlines
Tue, 14 Jul - Thu, 23 Jul
Virgin Atlantic Logo
12:30 - 22:46
LHR
-
ABE
15h 16m
1 stop
Virgin Atlantic Logo
13:00 - 06:25
ABE
-
LHR
12h 25m
1 stop
£757Virgin Atlantic
Tue, 17 Nov - Thu, 19 Nov
United Airlines Logo
08:45 - 09:39
LHR
-
ABE
29h 54m
2 stops
United Airlines Logo
17:36 - 20:40
ABE
-
LHR
22h 04m
2 stops
£772United Airlines
Thu, 17 Sep - Mon, 21 Sep
United Airlines Logo
08:45 - 09:39
LHR
-
ABE
29h 54m
2 stops
United Airlines Logo
10:32 - 11:55
ABE
-
LHR
20h 23m
1 stop
£773United Airlines
Thu, 17 Sep - Mon, 21 Sep

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United Airlines flights from London to Allentown

Our best United Airlines deals on London to Allentown flight tickets
United Airlines
17 Sept
LHR08:45London Heathrow
29h 54m
2 stops
ABE09:39Allentown-Bethlehem
21 Sept
ABE10:32Allentown-Bethlehem
20h 23m
1 stop
LHR11:55London Heathrow
£694
United Airlines
17 Sept
LHR08:45London Heathrow
29h 54m
2 stops
ABE09:39Allentown-Bethlehem
21 Sept
ABE17:36Allentown-Bethlehem
22h 04m
2 stops
LHR20:40London Heathrow
£711
United Airlines
17 Sept
LHR14:10London Heathrow
24h 29m
1 stop
ABE09:39Allentown-Bethlehem
21 Sept
ABE17:36Allentown-Bethlehem
13h 19m
1 stop
LHR11:55London Heathrow
£722

Virgin Atlantic flights from London to Allentown

Our best Virgin Atlantic deals on London to Allentown flight tickets
Virgin Atlantic
2 Nov
LHR16:50London Heathrow
34h 39m
2 stops
ABE22:29Allentown-Bethlehem
8 Nov
ABE18:00Allentown-Bethlehem
32h 50m
1 stop
LHR07:50London Heathrow
£685
Virgin Atlantic
2 Nov
LHR16:50London Heathrow
34h 39m
2 stops
ABE22:29Allentown-Bethlehem
8 Nov
ABE18:00Allentown-Bethlehem
38h 50m
2 stops
LHR13:50London Heathrow
£700
Virgin Atlantic
2 Nov
LHR08:55London Heathrow
13h 20m
1 stop
ABE17:15Allentown-Bethlehem
8 Nov
ABE18:00Allentown-Bethlehem
31h 25m
1 stop
LHR06:25London Heathrow
£703

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 29 June 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

Mon 2/11

16:50-22:29

2 stops34h 39m

Allentown-Bethlehem

Sun 8/11

18:00-07:50

1 stop32h 50m

£685

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

08:45-09:39

2 stops29h 54m

Allentown-Bethlehem

Mon 21/9

10:32-11:55

1 stop20h 23m

£694

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 2/11

16:50-22:29

2 stops34h 39m

Allentown-Bethlehem

Sun 8/11

18:00-13:50

2 stops38h 50m

£700

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 2/11

08:55-17:15

1 stop13h 20m

Allentown-Bethlehem

Sun 8/11

18:00-06:25

1 stop31h 25m

£703

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

08:45-09:39

2 stops29h 54m

Allentown-Bethlehem

Mon 21/9

17:36-20:40

2 stops22h 04m

£711

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

14:10-09:39

1 stop24h 29m

Allentown-Bethlehem

Mon 21/9

17:36-11:55

1 stop13h 19m

£722

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 14/7

11:05-09:58

1 stop27h 53m

Allentown-Bethlehem

Thu 23/7

17:41-11:55

1 stop13h 14m

£751
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 17/11

12:30-22:46

1 stop15h 16m

Allentown-Bethlehem

Thu 19/11

13:00-06:25

1 stop12h 25m

£757

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

08:45-09:39

2 stops29h 54m

Allentown-Bethlehem

Mon 21/9

17:36-20:40

2 stops22h 04m

£772

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

08:45-09:39

2 stops29h 54m

Allentown-Bethlehem

Mon 21/9

10:32-11:55

1 stop20h 23m

£773

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?

American Airlines and Delta 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 44% 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

15h 11m

Direct flights

None
The fastest flight from London to Allentown takes 15h 11m
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 15h 11m, 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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