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Cheap flights from the United Kingdom to Allentown from £508

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
10 Apr — 17 Apr1
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 11 March 2026.

Tue 21/409:20
LHR
-
ABE
1 stop12h 59m
Virgin Atlantic
Tue 28/417:59
ABE
-
LHR
1 stop12h 21m
Virgin Atlantic
Deal found 7/3£618
Tue 21/406:15
LHR
-
ABE
2 stops21h 45m
Delta
Tue 28/406:33
ABE
-
LHR
1 stop25h 42m
Delta
Deal found 7/3£636
Wed 22/408:55
LHR
-
ABE
2 stops19h 05m
Delta
Wed 29/412:53
ABE
-
LHR
2 stops18h 12m
Delta
Deal found 8/3£638
Wed 8/711:15
LHR
-
ABE
1 stop16h 41m
Virgin Atlantic
Wed 5/813:00
ABE
-
LHR
1 stop12h 25m
Virgin Atlantic
Deal found 6/3£643
Wed 22/416:55
LHR
-
ABE
1 stop12h 27m
American Airlines
Wed 29/412:00
ABE
-
LHR
1 stop16h 05m
American Airlines
Deal found 8/3£650
Wed 8/706:15
LHR
-
ABE
2 stops21h 41m
Delta
Wed 5/813:00
ABE
-
LHR
2 stops18h 05m
Delta
Deal found 6/3£664
Sat 2/511:15
LHR
-
ABE
1 stop16h 45m
Delta
Sun 10/518:15
ABE
-
LHR
2 stops15h 20m
Delta
Deal found 7/3£674
Sat 2/512:25
LHR
-
ABE
2 stops28h 47m
Delta
Sat 9/518:15
ABE
-
LHR
2 stops20h 55m
Delta
Deal found 8/3£706
Sat 2/509:20
LHR
-
ABE
1 stop18h 40m
KLM
Sat 9/512:59
ABE
-
LHR
1 stop19h 16m
KLM
Deal found 8/3£710
Tue 24/311:45
LHR
-
ABE
2 stops28h 31m
Delta
Thu 6/813:00
ABE
-
LHR
2 stops17h 20m
Delta
Deal found 10/3£710
Thu 23/411:25
EDI
-
ABE
2 stops17h 57m
American Airlines
Thu 30/412:00
ABE
-
EDI
2 stops15h 30m
American Airlines
Deal found 8/3£760
Mon 20/406:00
MAN
-
ABE
2 stops32h 48m
United Airlines
Mon 27/417:43
ABE
-
MAN
2 stops35h 42m
United Airlines
Deal found 6/3£798

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 11 March 2026.

Round-trip from

£618

One-way from

£508
Virgin Atlantic
  • Virgin Atlantic
  • 21/4-28/4
  • 2 total stops
  • 25h 20m total
  • United Kingdom to Allentown
Search Deals
United Airlines
  • United Airlines
  • 20/4
  • 2 total stops
  • 18h 47m 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 11 March 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

Cheapest return flight

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 22/4

09:20-23:00

1 stop18h 40m

Allentown-Bethlehem

Wed 29/4

12:53-10:20

2 stops16h 27m

£646

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 2/5

12:00-00:22

1 stop17h 22m

Allentown-Bethlehem

Sat 9/5

12:00-07:45

2 stops38h 45m

£721

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 22/4

09:30-09:48

2 stops29h 18m

Allentown-Bethlehem

Sun 26/4

10:35-07:55

2 stops40h 20m

£772

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Tue 21/4

06:05-09:48

2 stops32h 43m

Allentown-Bethlehem

Tue 28/4

10:35-17:35

2 stops26h 00m

£800

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 25/3

13:40-12:16

2 stops26h 36m

Allentown-Bethlehem

Tue 7/4

06:32-14:00

2 stops26h 28m

£800

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Wed 22/4

12:30-09:48

2 stops26h 18m

Allentown-Bethlehem

Sun 26/4

06:15-10:35

2 stops47h 20m

£803

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 25/3

13:40-12:16

2 stops26h 36m

Allentown-Bethlehem

Thu 2/4

12:57-16:45

2 stops22h 48m

£803

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Mon 27/4

06:00-21:17

2 stops20h 17m

Allentown-Bethlehem

Mon 11/5

14:25-10:25

2 stops15h 00m

£809

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 22/4

10:35-09:48

2 stops28h 13m

Allentown-Bethlehem

Sun 26/4

10:35-10:25

2 stops18h 50m

£827

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 16/4

06:05-09:48

2 stops32h 43m

Allentown-Bethlehem

Mon 20/4

17:43-17:35

2 stops42h 52m

£834

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 24 resultsSorted by cheapest first
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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 £298). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £353). 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, British Airways, and United Airlines fly from United Kingdom to Allentown in about 17h 22m. The time it takes to get you to your destination can typically vary by up to 11h 56m. 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 Birmingham - 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 £298). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £353). 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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Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to Allentown?

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Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Allentown?

Millions of users choose and trust Cheapflights to book the best flight deals from United Kingdom to Allentown for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from United Kingdom to Allentown with no change fees?

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.

Can Cheapflights notify me if prices for flights from United Kingdom to Allentown become cheaper?

Not ready to book yet? You can track prices for flights from United Kingdom to Allentown on Cheapflights with our Price Alert feature and get notified when better prices are available.

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