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$543+ Cheap flights from the United Kingdom to Allentown (ABE)

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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap 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 November 2, 2025.

Round-trip from

$823
(KLM)

One-way from

$543
(Delta)

Popular in

December

Cheapest in

April

Average price

$772
From United Kingdom to Allentown-Bethlehem
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One-way flight from United Kingdom to Allentown-Bethlehem
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Highest demand for flights based on searches. 10% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from United Kingdom to Allentown

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 November 2, 2025.

This KLM deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:40 amLHR - ABE
2 stops17h 31mKLM
Wed 12/242:00 pmABE - LHR
1 stop14h 00mKLM
Deal found 11/2$823
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:40 amLHR - ABE
1 stop35h 15mUnited Airlines
Wed 12/245:07 pmABE - LHR
1 stop13h 08mUnited Airlines
Deal found 11/2$1,036
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:35 pmLHR - ABE
1 stop13h 11mUnited Airlines
Tue 12/235:07 pmABE - LHR
1 stop31h 48mUnited Airlines
Deal found 11/1$1,086
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:55 amLHR - ABE
1 stop13h 52mUnited Airlines
Mon 12/225:07 pmABE - LHR
1 stop13h 08mUnited Airlines
Deal found 10/31$1,152
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:00 amBHX - ABE
2 stops34h 52mUnited Airlines
Tue 12/232:30 pmABE - BHX
2 stops41h 15mUnited Airlines
Deal found 11/1$1,181
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:25 amLHR - ABE
1 stop14h 22mUnited Airlines
Fri 11/211:00 pmABE - LHR
2 stops37h 10mUnited Airlines
Deal found 10/31$1,251
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:00 amLHR - ABE
2 stops17h 16mMultiple Airlines
Fri 11/211:00 pmABE - LHR
2 stops14h 45mMultiple Airlines
Deal found 10/31$1,583
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:35 pmLHR - ABE
1 stop27h 13mUnited Airlines
Mon 12/15:22 pmABE - LHR
1 stop12h 53mUnited Airlines
Deal found 11/1$1,757

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 2, 2025.
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

Wed 12/17

9:40 am-10:11 pm

2 stops17h 31m

Allentown-Bethlehem

Wed 12/24

2:00 pm-9:00 am

1 stop14h 00m

$823

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 3/5

11:40 am-12:28 am

2 stops17h 48m

Allentown-Bethlehem

Mon 3/9

5:47 pm-2:00 pm

2 stops16h 13m

$922

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 3/5

1:30 pm-10:52 pm

1 stop14h 22m

Allentown-Bethlehem

Mon 3/9

5:40 pm-4:05 pm

2 stops18h 25m

$936

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 3/5

8:50 pm-10:52 pm

2 stops31h 02m

Allentown-Bethlehem

Mon 3/9

1:00 pm-9:30 am

2 stops16h 30m

$968

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 3/5

1:35 pm-12:07 pm

2 stops27h 32m

Allentown-Bethlehem

Mon 3/9

5:40 pm-9:30 am

2 stops35h 50m

$971

BristolAllentown

BRS - ABE

BRSABE

Bristol

Fri 3/6

8:55 am-10:52 pm

2 stops42h 57m

Allentown-Bethlehem

Tue 3/10

6:30 am-1:10 pm

2 stops26h 40m

$983

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 12/17

7:40 am-1:55 pm

1 stop35h 15m

Allentown-Bethlehem

Wed 12/24

5:07 pm-11:15 am

1 stop13h 08m

$1,036

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/27

9:35 am-12:14 am

2 stops18h 39m

Allentown-Bethlehem

Tue 3/31

1:48 pm-7:25 am

2 stops12h 37m

$1,069

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Tue 12/16

6:00 am-11:52 am

2 stops34h 52m

Allentown-Bethlehem

Tue 12/23

2:30 pm-12:45 pm

2 stops41h 15m

$1,181

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 4/22

9:20 am-5:17 pm

1 stop12h 57m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 19 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 round-trip 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, November is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of $302). Flying from United Kingdom to Allentown in June is currently the most expensive (average of $478). 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?

    Allentown-Bethlehem (ABE) is the airport you will fly into if you book a flight from United Kingdom to Allentown. It is only a 3.9 mi journey from Allentown-Bethlehem (ABE) to Allentown’s city center.

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

    A quick flight from United Kingdom to Allentown can take about 14h 22m. KLM provides one of the quickest options available for as low as $936. Airlines will cover a distance of 3395 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Birmingham - Allentown-Bethlehem or Bristol - Allentown-Bethlehem, London Heathrow - Allentown-Bethlehem is the most popular route from United Kingdom to Allentown.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of $302). Flying from United Kingdom to Allentown in June is currently the most expensive (average of $478). 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.

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