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Cheap flights from the United Kingdom to Allentown from £398

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
17 Dec — 24 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 17 November 2025.

Round-trip from

£670

One-way from

£398
Delta
  • Delta
  • 5/12-14/12
  • 3 total stops
  • 34h 37m total
  • United Kingdom to Allentown
Search Deals
4/12
  • 4/12
  • 3 total stops
  • 36h 34m total
  • United Kingdom to Allentown
Search Deals

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 17 November 2025.

Fri 5/1206:30LHR - ABE
2 stops15h 44mDelta
Sun 14/1206:25ABE - LHR
2 stops19h 40mDelta
Deal found 16/11£670
Wed 31/1206:50LHR - ABE
2 stops19h 57mUnited Airlines
Wed 7/116:57ABE - LHR
1 stop13h 18mUnited Airlines
Deal found 16/11£912
Tue 30/1208:55BRS - ABE
2 stops42h 51mMultiple Airlines
Tue 6/112:47ABE - BRS
2 stops28h 23mMultiple Airlines
Deal found 15/11£1,005
Thu 25/1212:30LHR - ABE
1 stop15h 16mDelta
Thu 1/114:00ABE - LHR
1 stop12h 50mDelta
Deal found 15/11£2,556
Wed 31/1214:50LHR - ABE
2 stops50h 19mWestJet
Wed 7/106:28ABE - LHR
2 stops25h 22mWestJet
Deal found 16/11£4,704

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 17 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

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 5/12

06:30-17:14

2 stops15h 44m

Allentown-Bethlehem

Sun 14/12

06:25-07:05

2 stops19h 40m

£670

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Wed 21/1

07:50-12:32

2 stops33h 42m

Allentown-Bethlehem

Sun 25/1

13:02-14:25

2 stops20h 23m

£685

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/3

08:50-00:28

2 stops20h 38m

Allentown-Bethlehem

Mon 9/3

17:47-14:00

2 stops16h 13m

£689

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Thu 26/2

07:30-00:28

2 stops21h 58m

Allentown-Bethlehem

Mon 2/3

12:01-17:00

2 stops23h 59m

£703

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/3

13:30-22:47

1 stop14h 17m

Allentown-Bethlehem

Mon 9/3

17:40-16:05

2 stops18h 25m

£711

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 5/3

20:50-17:18

2 stops49h 28m

Allentown-Bethlehem

Mon 9/3

13:00-17:50

2 stops24h 50m

£755

BristolAllentown

BRS - ABE

BRSABE

Bristol

Fri 6/3

06:00-12:07

2 stops35h 07m

Allentown-Bethlehem

Tue 10/3

13:00-08:25

2 stops15h 25m

£767

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 27/3

19:10-10:55

2 stops19h 45m

Allentown-Bethlehem

Tue 31/3

13:48-07:25

2 stops12h 37m

£811

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 27/3

10:45-22:52

1 stop16h 07m

Allentown-Bethlehem

Tue 31/3

13:00-06:30

1 stop12h 30m

£829

BristolAllentown

BRS - ABE

BRSABE

Bristol

Tue 30/12

08:55-22:46

2 stops42h 51m

Allentown-Bethlehem

Tue 6/1

12:47-22:10

2 stops28h 23m

£1,005

Flights are sorted by cheapest return flights first.

Deals found on 16/11

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, November is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £216). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £363). 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 17 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 17 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
1,334 reviews
Check prices

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

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
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Comfort

7.4

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 Delta, American Airlines, and Virgin Atlantic fly from United Kingdom to Allentown in about 15h 44m. The time it takes to get you to your destination can typically vary by up to 33h 44m. 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 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 £216). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £363). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 17 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£540Average£611FlexibilityNo 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?

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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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