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Cheap flights from London Heathrow Airport to Allentown from $643

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Allentown departing on 2/9. 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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Find the cheapest flights from London Heathrow Airport to Allentown

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
12:30 pm - 10:50 pm
LHR
-
ABE
15h 20m1 stop
Virgin Atlantic Logo
12:47 pm - 8:05 am
ABE
-
LHR
14h 18m2 stops
$643Virgin Atlantic
Mon, Feb 9 - Mon, Feb 16
Virgin Atlantic Logo
10:10 am - 10:50 pm
LHR
-
ABE
17h 40m2 stops
Virgin Atlantic Logo
12:47 pm - 8:05 am
ABE
-
LHR
14h 18m2 stops
$652Virgin Atlantic
Mon, Feb 9 - Mon, Feb 16
Virgin Atlantic Logo
9:40 am - 10:10 pm
LHR
-
ABE
17h 30m2 stops
Virgin Atlantic Logo
12:50 pm - 8:05 am
ABE
-
LHR
14h 15m2 stops
$698Virgin Atlantic
Sat, Jan 10 - Wed, Jan 14
Virgin Atlantic Logo
9:40 am - 10:10 pm
LHR
-
ABE
17h 30m2 stops
Virgin Atlantic Logo
12:50 pm - 6:25 am
ABE
-
LHR
12h 35m1 stop
$704Virgin Atlantic
Sat, Jan 10 - Wed, Jan 14
Delta Logo
8:55 am - 10:10 pm
LHR
-
ABE
18h 15m1 stop
Delta Logo
5:59 pm - 11:40 am
ABE
-
LHR
12h 41m1 stop
$722Delta
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
1:45 pm - 10:41 am
LHR
-
ABE
49h 56m2 stops
United Airlines Logo
4:57 pm - 7:55 am
ABE
-
LHR
33h 58m1 stop
$816United Airlines
Thu, Feb 5 - Mon, Feb 9
United Airlines Logo
9:00 am - 10:41 am
LHR
-
ABE
30h 41m2 stops
United Airlines Logo
4:57 pm - 5:55 am
ABE
-
LHR
31h 58m1 stop
$840United Airlines
Thu, Feb 5 - Mon, Feb 9
United Airlines Logo
7:40 am - 4:22 pm
LHR
-
ABE
13h 42m1 stop
United Airlines Logo
4:57 pm - 11:15 am
ABE
-
LHR
13h 18m1 stop
$887United Airlines
Thu, Feb 5 - Mon, Feb 9
United Airlines Logo
7:40 am - 4:22 pm
LHR
-
ABE
13h 42m1 stop
United Airlines Logo
4:57 pm - 11:15 am
ABE
-
LHR
13h 18m1 stop
$888United Airlines
Thu, Feb 5 - Mon, Feb 9
United Airlines Logo
7:40 am - 4:22 pm
LHR
-
ABE
13h 42m1 stop
United Airlines Logo
4:57 pm - 11:15 am
ABE
-
LHR
13h 18m1 stop
$911United Airlines
Thu, Feb 5 - Mon, Feb 9

United Airlines flights from London Heathrow Airport to Allentown

Our best United Airlines deals on London Heathrow Airport to Allentown flight tickets
United Airlines
Feb 5
LHR1:45 pmLondon Heathrow
49h 56m
2 stops
ABE10:41 amAllentown-Bethlehem
Feb 9
ABE4:57 pmAllentown-Bethlehem
33h 58m
1 stop
LHR7:55 amLondon Heathrow
$816
Find similar
United Airlines
Feb 5
LHR9:00 amLondon Heathrow
30h 41m
2 stops
ABE10:41 amAllentown-Bethlehem
Feb 9
ABE4:57 pmAllentown-Bethlehem
31h 58m
1 stop
LHR5:55 amLondon Heathrow
$840
Find similar
United Airlines
Feb 5
LHR7:40 amLondon Heathrow
13h 42m
1 stop
ABE4:22 pmAllentown-Bethlehem
Feb 9
ABE4:57 pmAllentown-Bethlehem
13h 18m
1 stop
LHR11:15 amLondon Heathrow
$887
Find similar

Virgin Atlantic flights from London Heathrow Airport to Allentown

Our best Virgin Atlantic deals on London Heathrow Airport to Allentown flight tickets
Virgin Atlantic
Feb 9
LHR12:30 pmLondon Heathrow
15h 20m
1 stop
ABE10:50 pmAllentown-Bethlehem
Feb 16
ABE12:47 pmAllentown-Bethlehem
14h 18m
2 stops
LHR8:05 amLondon Heathrow
$643
Find similar
Virgin Atlantic
Feb 9
LHR10:10 amLondon Heathrow
17h 40m
2 stops
ABE10:50 pmAllentown-Bethlehem
Feb 16
ABE12:47 pmAllentown-Bethlehem
14h 18m
2 stops
LHR8:05 amLondon Heathrow
$652
Find similar
Virgin Atlantic
Jan 10
LHR9:40 amLondon Heathrow
17h 30m
2 stops
ABE10:10 pmAllentown-Bethlehem
Jan 14
ABE12:50 pmAllentown-Bethlehem
14h 15m
2 stops
LHR8:05 amLondon Heathrow
$698
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 2/9

12:30 pm-10:50 pm

1 stop15h 20m

Allentown-Bethlehem

Mon 2/16

12:47 pm-8:05 am

2 stops14h 18m

$643

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 2/9

10:10 am-10:50 pm

2 stops17h 40m

Allentown-Bethlehem

Mon 2/16

12:47 pm-8:05 am

2 stops14h 18m

$652

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 1/10

9:40 am-10:10 pm

2 stops17h 30m

Allentown-Bethlehem

Wed 1/14

12:50 pm-8:05 am

2 stops14h 15m

$698

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 1/10

9:40 am-10:10 pm

2 stops17h 30m

Allentown-Bethlehem

Wed 1/14

12:50 pm-6:25 am

1 stop12h 35m

$704

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 1/10

8:55 am-10:10 pm

1 stop18h 15m

Allentown-Bethlehem

Wed 1/14

5:59 pm-11:40 am

1 stop12h 41m

$722

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

1:45 pm-10:41 am

2 stops49h 56m

Allentown-Bethlehem

Mon 2/9

4:57 pm-7:55 am

1 stop33h 58m

$816

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

9:00 am-10:41 am

2 stops30h 41m

Allentown-Bethlehem

Mon 2/9

4:57 pm-5:55 am

1 stop31h 58m

$840

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

7:40 am-4:22 pm

1 stop13h 42m

Allentown-Bethlehem

Mon 2/9

4:57 pm-11:15 am

1 stop13h 18m

$887

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

7:40 am-4:22 pm

1 stop13h 42m

Allentown-Bethlehem

Mon 2/9

4:57 pm-11:15 am

1 stop13h 18m

$888

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

7:40 am-4:22 pm

1 stop13h 42m

Allentown-Bethlehem

Mon 2/9

4:57 pm-11:15 am

1 stop13h 18m

$911

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Allentown from

How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow to Allentown-Bethlehem?

Delta and American Airlines are the most popular carriers operating from London Heathrow to Allentown-Bethlehem

What airlines fly to Allentown?

British Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to Allentown from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 11 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 Heathrow Airport to Allentown

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

Cheap London Heathrow Airport to Allentown (LHR to ABE) flight deals and tips

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

Fastest flight time

13h 19m

Direct flights

None
The fastest flight from London Heathrow Airport to Allentown takes 13h 19m
There are no direct flights from London Heathrow Airport to Allentown. There are no popular flight routes from London Heathrow Airport to Allentown.
Search flight deals

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

    Allentown-Bethlehem is 3510.6 mi away from London Heathrow. Typically, this will take 13h 19m by plane in normal conditions.

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

    Prices for flights from London Heathrow Airport to Allentown-Bethlehem Airport were last updated today.

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

    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 London Heathrow Airport 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.

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
Lehighton

Why use momondo?

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

It is quick and easy to find London to Allentown flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Allentown that suits you.

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

Yes. momondo enables you to select and highlight flights to Allentown from London with this policy.

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

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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