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Cheap flights from the United Kingdom to Allentown from £456

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 27/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

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 7 November 2025.

Round-trip from

£687

One-way from

£456

Popular in

December

Cheapest in

April

Average price

£590
American Airlines
  • American Airlines
  • 5/3-9/3
  • 4 total stops
  • 35h 11m total
  • United Kingdom to Allentown
Search Deals
Delta
  • Delta
  • 27/12
  • 1 total stop
  • 25h 19m total
  • United Kingdom to Allentown
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 7 November 2025.

Sat 27/1207:40LHR - ABE
1 stop13h 50mUnited Airlines
Wed 7/111:30ABE - LHR
1 stop13h 25mUnited Airlines
Deal found 5/11£835
Thu 13/1113:30MAN - ABE
1 stop13h 42mMultiple Airlines
Sat 13/1218:00ABE - MAN
2 stops56h 55mMultiple Airlines
Deal found 5/11£858
Thu 13/1105:50MAN - ABE
2 stops16h 29mVirgin Atlantic
Sat 13/1212:54ABE - MAN
2 stops14h 01mVirgin Atlantic
Deal found 5/11£874
Sat 15/1106:50LHR - ABE
2 stops14h 57mUnited Airlines
Fri 21/1117:22ABE - LHR
2 stops32h 48mUnited Airlines
Deal found 7/11£970
Mon 22/1213:00MAN - ABE
2 stops56h 30mUnited Airlines
Mon 29/1206:17ABE - MAN
2 stops21h 28mUnited Airlines
Deal found 7/11£1,406
Sat 15/1106:10MAN - ABE
2 stops15h 37mUnited Airlines
Fri 21/1106:32ABE - MAN
2 stops22h 48mUnited Airlines
Deal found 7/11£1,483
Sun 21/1207:40LHR - ABE
1 stop13h 50mUnited Airlines
Sun 28/1217:07ABE - LHR
1 stop31h 48mUnited Airlines
Deal found 6/11£1,582
Mon 22/1213:20BHX - ABE
2 stops32h 10mUnited Airlines
Mon 29/1214:30ABE - BHX
2 stops17h 15mUnited Airlines
Deal found 7/11£1,871
Sat 15/1113:30MAN - ABE
1 stop13h 42mDelta
Fri 21/1118:00ABE - MAN
2 stops17h 05mDelta
Deal found 7/11£8,316

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 7 November 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

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/3

11:40-00:28

2 stops17h 48m

Allentown-Bethlehem

Mon 9/3

17:47-15:10

2 stops17h 23m

£687

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Thu 26/2

05:50-17:18

2 stops16h 28m

Allentown-Bethlehem

Mon 2/3

17:58-21:35

2 stops22h 37m

£706

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/3

13:30-22:47

1 stop14h 17m

Allentown-Bethlehem

Mon 9/3

13:00-10:10

2 stops17h 10m

£710

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 5/3

06:15-17:18

2 stops40h 03m

Allentown-Bethlehem

Mon 9/3

17:40-17:50

2 stops20h 10m

£733

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 8/1

06:35-21:15

2 stops19h 40m

Allentown-Bethlehem

Thu 22/1

16:57-11:15

1 stop13h 18m

£744

BristolAllentown

BRS - ABE

BRSABE

Bristol

Fri 6/3

06:00-22:47

2 stops21h 47m

Allentown-Bethlehem

Tue 10/3

06:30-13:10

2 stops26h 40m

£745

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 27/3

12:55-00:14

2 stops15h 19m

Allentown-Bethlehem

Tue 31/3

17:47-11:15

2 stops12h 28m

£810

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 27/12

07:40-16:30

1 stop13h 50m

Allentown-Bethlehem

Wed 7/1

11:30-05:55

1 stop13h 25m

£835

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Mon 22/12

13:00-16:30

2 stops56h 30m

Allentown-Bethlehem

Mon 29/12

06:17-08:45

2 stops21h 28m

£1,406

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Mon 22/12

13:20-16:30

2 stops32h 10m

Allentown-Bethlehem

Mon 29/12

14:30-12:45

2 stops17h 15m

£1,871

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 24 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, November is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £231). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £365). 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.

What is the cheapest time of day to fly from GB to ABE?

Find hourly flight availability from United Kingdom to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

One of the essential ways to save on airfare from United Kingdom to Allentown is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 18% on airfare.

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated 7 November 2025.
Check out reviews from past customers who have flown with Finnair from the United Kingdom to Allentown to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews
Check prices

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Entertainment

6.9

Overall

7.6

Food

6.7

Comfort

7.4

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 American Airlines, Virgin Atlantic, and Delta fly from United Kingdom to Allentown in about 14h 17m. The time it takes to get you to your destination can typically vary by up to 3h 31m. The distance between United Kingdom and Allentown is about 3395 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to Allentown one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at £456. American Airlines flights start at £471 while deals on Virgin Atlantic start at £648 one-way.

  • 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 Manchester - Allentown-Bethlehem or Birmingham - 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, November is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £231). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £365). 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

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Alternative routes for United Kingdom to Allentown

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Top airline flying from United Kingdom to Allentown

Discover the top airline that operate flights from United Kingdom to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£544Average£615FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from United Kingdom to Allentown via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

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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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