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Cheap flights from the United Kingdom to Allentown from £388

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
18 Mar — 25 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Allentown

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Allentown
Explore the most affordable flight options available from United Kingdom to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 February 2026.

Tue 17/306:30
LHR
-
ABE
2 stops20h 26m
Delta
Tue 24/312:56
ABE
-
LHR
1 stop18h 44m
Delta
Deal found 15/2£592
Thu 14/509:20
LHR
-
ABE
1 stop13h 03m
Virgin Atlantic
Mon 18/518:16
ABE
-
LHR
2 stops31h 29m
Virgin Atlantic
Deal found 15/2£657
Mon 24/811:20
EDI
-
ABE
2 stops29h 48m
Delta
Thu 10/913:00
ABE
-
EDI
2 stops22h 30m
Delta
Deal found 14/2£720
Mon 24/811:20
EDI
-
ABE
2 stops29h 48m
Delta
Tue 8/906:30
ABE
-
EDI
2 stops28h 40m
Delta
Deal found 14/2£723
Tue 25/813:10
EDI
-
ABE
2 stops27h 58m
Delta
Wed 9/906:30
ABE
-
EDI
2 stops28h 40m
Delta
Deal found 14/2£724
Mon 24/811:20
EDI
-
ABE
2 stops16h 36m
Delta
Mon 7/913:00
ABE
-
EDI
2 stops16h 40m
Delta
Deal found 14/2£748
Tue 25/813:10
EDI
-
ABE
2 stops33h 07m
Delta
Mon 7/913:00
ABE
-
EDI
2 stops16h 40m
Delta
Deal found 14/2£748
Thu 27/811:20
EDI
-
ABE
2 stops16h 36m
Delta
Thu 10/917:40
ABE
-
EDI
2 stops17h 50m
Delta
Deal found 14/2£750
Sun 23/813:10
EDI
-
ABE
2 stops27h 58m
Delta
Thu 10/917:40
ABE
-
EDI
2 stops17h 50m
Delta
Deal found 14/2£750
Thu 27/811:20
EDI
-
ABE
2 stops16h 36m
Delta
Tue 8/917:40
ABE
-
EDI
2 stops17h 30m
Delta
Deal found 14/2£753
Sun 23/813:10
EDI
-
ABE
2 stops27h 58m
Delta
Tue 8/917:40
ABE
-
EDI
2 stops17h 30m
Delta
Deal found 14/2£754
Mon 24/811:20
EDI
-
ABE
2 stops16h 36m
Delta
Sat 12/917:40
ABE
-
EDI
2 stops32h 25m
Delta
Deal found 14/2£764

Find flight deals from United Kingdom to Allentown

Keep the following information in mind while searching for United Kingdom to Allentown flight deals. Data was last updated 16 February 2026.

Round-trip from

£592

One-way from

£388
Delta
  • Delta
  • 17/3-24/3
  • 3 total stops
  • 39h 10m total
  • United Kingdom to Allentown
Search Deals
American Airlines
  • American Airlines
  • 7/4
  • 2 total stops
  • 35h 17m total
  • United Kingdom to Allentown
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 16 February 2026.
Use the filters below to find and compare flights from the United Kingdom to Allentown that are best for you.

Fly from

United Kingdom

Fly to

Allentown

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 17/3

06:30-22:56

2 stops20h 26m

Allentown-Bethlehem

Tue 24/3

12:56-11:40

1 stop18h 44m

£592

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 17/3

12:30-22:56

1 stop14h 26m

Allentown-Bethlehem

Tue 24/3

12:56-09:00

1 stop16h 04m

£592

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 14/5

09:20-17:23

1 stop13h 03m

Allentown-Bethlehem

Mon 18/5

18:16-06:45

2 stops31h 29m

£657

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Wed 4/3

09:05-09:56

2 stops29h 51m

Allentown-Bethlehem

Sun 8/3

18:51-12:45

2 stops37h 54m

£784

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 4/3

06:00-09:56

2 stops32h 56m

Allentown-Bethlehem

Sun 8/3

18:51-12:20

2 stops37h 29m

£784

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 13/3

13:35-09:56

1 stop24h 21m

Allentown-Bethlehem

Fri 20/3

18:51-07:10

2 stops32h 19m

£850

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Sat 14/3

06:05-20:50

2 stops18h 45m

Allentown-Bethlehem

Sat 21/3

18:51-08:45

2 stops33h 54m

£893

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Fri 22/5

11:10-13:48

2 stops31h 38m

Allentown-Bethlehem

Tue 26/5

14:23-17:35

2 stops22h 12m

£922

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 2/4

05:55-22:52

2 stops21h 57m

Allentown-Bethlehem

Thu 9/4

06:32-16:55

2 stops29h 23m

£932

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 26/2

09:00-20:53

2 stops16h 53m

Allentown-Bethlehem

Mon 2/3

06:28-05:55

1 stop18h 27m

£936

Flights are sorted by cheapest return flights first.

Deals found on 16/2

Showing 1-10 of 23 results
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Best time to book a flight from United Kingdom to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from United Kingdom with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Allentown

What is the cheapest month to book a flight from United Kingdom to Allentown?

Currently, March is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £294). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £350). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Allentown from United Kingdom?

    For a flight from United Kingdom to Allentown, you will be flying into Allentown-Bethlehem. Allentown-Bethlehem (ABE) is just 3.9 mi from the center of the city.

  • How long is the flight from United Kingdom to Allentown?

    Airlines like Delta, Virgin Atlantic, and United Airlines fly from United Kingdom to Allentown in about 14h 26m. The time it takes to get you to your destination can typically vary by up to 15h 25m. The distance between United Kingdom and Allentown is about 3507 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from United Kingdom to Allentown?

    The most popular route from United Kingdom to Allentown is London Heathrow - Allentown-Bethlehem. You may also consider Edinburgh Turnhouse - Allentown-Bethlehem or Manchester - Allentown-Bethlehem.

  • Can I find deals for flights from United Kingdom to Allentown that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Allentown.

  • Can I find deals for business class flights from United Kingdom to Allentown?

    Yes. Cheapflights offers flight deals from United Kingdom to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Allentown?

    Currently, March is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £294). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £350). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for United Kingdom to Allentown

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Yes, we can. To see specific flights from United Kingdom to Allentown with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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