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Cheap flights from the United Kingdom to Allentown from £426

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Allentown departing on 21/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United Kingdom to Allentown

Recent return flight deals from the United Kingdom to Allentown

Enter your travel dates to find the best prices.
American Airlines Logo
13:10 - 00:29
LHR
-
ABE
15h 19m2 stops
American Airlines Logo
12:00 - 06:55
ABE
-
LHR
13h 55m1 stop
£487American Airlines
Mon, 9 Mar - Mon, 30 Mar
Delta Logo
08:55 - 17:12
LHR
-
ABE
13h 17m1 stop
Delta Logo
12:49 - 06:25
ABE
-
LHR
13h 36m1 stop
£504Delta
Tue, 3 Mar - Wed, 25 Mar
American Airlines Logo
14:45 - 00:29
LHR
-
ABE
14h 44m1 stop
American Airlines Logo
12:00 - 06:55
ABE
-
LHR
13h 55m1 stop
£517American Airlines
Thu, 5 Mar - Mon, 30 Mar
Delta Logo
12:30 - 22:59
LHR
-
ABE
14h 29m1 stop
Delta Logo
12:47 - 06:45
ABE
-
LHR
12h 58m1 stop
£532Delta
Wed, 11 Mar - Thu, 16 Apr
Delta Logo
08:55 - 17:12
LHR
-
ABE
13h 17m1 stop
Delta Logo
12:49 - 07:50
ABE
-
LHR
15h 01m1 stop
£534Delta
Wed, 4 Mar - Fri, 27 Mar
American Airlines Logo
14:45 - 00:29
LHR
-
ABE
14h 44m1 stop
American Airlines Logo
12:00 - 05:55
ABE
-
LHR
13h 55m1 stop
£547American Airlines
Thu, 5 Mar - Sat, 28 Mar
Delta Logo
06:30 - 17:12
LHR
-
ABE
15h 42m2 stops
Delta Logo
12:49 - 07:50
ABE
-
LHR
15h 01m1 stop
£552Delta
Fri, 6 Mar - Fri, 27 Mar
United Airlines Logo
06:00 - 10:41
MAN
-
ABE
33h 41m2 stops
United Airlines Logo
16:57 - 12:20
ABE
-
MAN
38h 23m2 stops
£721United Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
06:00 - 10:41
MAN
-
ABE
33h 41m2 stops
United Airlines Logo
16:57 - 12:20
ABE
-
MAN
38h 23m2 stops
£721United Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
06:00 - 10:41
MAN
-
ABE
33h 41m2 stops
United Airlines Logo
16:57 - 14:50
ABE
-
MAN
40h 53m2 stops
£749United Airlines
Thu, 5 Feb - Mon, 9 Feb

United Airlines flights from United Kingdom to Allentown

Our best United Airlines deals on United Kingdom to Allentown flight tickets
United Airlines
5 Feb
LHR13:45London Heathrow
49h 56m
2 stops
ABE10:41Allentown-Bethlehem
9 Feb
ABE11:30Allentown-Bethlehem
18h 45m
1 stop
LHR11:15London Heathrow
£605
Find similar
United Airlines
5 Feb
LHR12:05London Heathrow
51h 36m
2 stops
ABE10:41Allentown-Bethlehem
9 Feb
ABE16:57Allentown-Bethlehem
13h 18m
1 stop
LHR11:15London Heathrow
£607
Find similar
United Airlines
5 Feb
LHR11:10London Heathrow
28h 31m
2 stops
ABE10:41Allentown-Bethlehem
9 Feb
ABE16:57Allentown-Bethlehem
33h 58m
1 stop
LHR07:55London Heathrow
£609
Find similar

American Airlines flights from United Kingdom to Allentown

Our best American Airlines deals on United Kingdom to Allentown flight tickets
American Airlines
22 Mar
LHR15:25London Heathrow
24h 05m
2 stops
ABE11:30Allentown-Bethlehem
14 Apr
ABE12:57Allentown-Bethlehem
15h 38m
2 stops
LHR09:35London Heathrow
£666
Find similar
American Airlines
22 Mar
LHR15:25London Heathrow
24h 05m
2 stops
ABE11:30Allentown-Bethlehem
15 Apr
ABE12:00Allentown-Bethlehem
16h 25m
2 stops
LHR09:25London Heathrow
£692
Find similar
American Airlines
22 Mar
LHR14:45London Heathrow
24h 45m
1 stop
ABE11:30Allentown-Bethlehem
14 Apr
ABE12:57Allentown-Bethlehem
12h 58m
1 stop
LHR06:55London Heathrow
£741
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 8 January 2026.
Use the filters below to find and compare flights from the United Kingdom to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 9/3

13:10-00:29

2 stops15h 19m

Allentown-Bethlehem

Mon 30/3

12:00-06:55

1 stop13h 55m

£487

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 3/3

08:55-17:12

1 stop13h 17m

Allentown-Bethlehem

Wed 25/3

12:49-06:25

1 stop13h 36m

£504

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/3

14:45-00:29

1 stop14h 44m

Allentown-Bethlehem

Mon 30/3

12:00-06:55

1 stop13h 55m

£517

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 11/3

12:30-22:59

1 stop14h 29m

Allentown-Bethlehem

Thu 16/4

12:47-06:45

1 stop12h 58m

£532

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 4/3

08:55-17:12

1 stop13h 17m

Allentown-Bethlehem

Fri 27/3

12:49-07:50

1 stop15h 01m

£534

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/3

14:45-00:29

1 stop14h 44m

Allentown-Bethlehem

Sat 28/3

12:00-05:55

1 stop13h 55m

£547

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 6/3

06:30-17:12

2 stops15h 42m

Allentown-Bethlehem

Fri 27/3

12:49-07:50

1 stop15h 01m

£552

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/2

06:00-10:41

2 stops33h 41m

Allentown-Bethlehem

Mon 9/2

16:57-12:20

2 stops38h 23m

£721

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/2

06:00-10:41

2 stops33h 41m

Allentown-Bethlehem

Mon 9/2

16:57-12:20

2 stops38h 23m

£721

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/2

06:00-10:41

2 stops33h 41m

Allentown-Bethlehem

Mon 9/2

16:57-14:50

2 stops40h 53m

£749

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Allentown from

How to get the cheapest flight ticket from United Kingdom 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 United Kingdom to Allentown-Bethlehem?

WestJet and United Airlines are the most popular carriers operating from United Kingdom to Allentown-Bethlehem

Which airlines fly to Allentown?

British Airways, Lufthansa and Aer Lingus are the top three most popular airlines that fly to Allentown from United Kingdom according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Allentown. Keep in mind that there are 19 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

Cheap United Kingdom to Allentown flight deals and tips

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

Fastest flight time

16h 18m

Direct flights

None
The fastest flight from United Kingdom to Allentown takes 16h 18m
There are no direct flights from United Kingdom to Allentown. There are no popular flight routes from United Kingdom to Allentown.
Search flight deals

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

    Prices for flights from United Kingdom to Allentown-Bethlehem Airport were last updated today.

  • How many operators does momondo search for flights from United Kingdom to Allentown-Bethlehem Airport?

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

    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 United Kingdom to Allentown-Bethlehem Airport.

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

    The required travel and health documents for your Allentown-Bethlehem Airport 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 Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from United Kingdom to Allentown

Compare and see reviews for airlines that fly from United Kingdom to Allentown with momondo
Airline
Rating
Free Cancellation
Price
FinnairPriceFrom £528Free CancellationRating
7.6
1,346 reviews
Search Finnair flights

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom 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 United Kingdom.

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

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

How can momondo help me find flights from United Kingdom to Allentown?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Allentown.

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

Yes. momondo can track prices for United Kingdom to Allentown flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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