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Cheap flights from the United Kingdom to Allentown from £542

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
1 Feb — 8 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Allentown

Enter your travel dates to find the best prices.

Best flights from United Kingdom to Allentown
Discover carefully curated flight deals from United Kingdom to Allentown that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 January 2026.

Sat 14/206:30LHR - ABE
2 stops21h 19mDelta
Sat 21/212:47ABE - LHR
1 stop12h 38mDelta
Deal found 31/12£585
Thu 5/212:05LHR - ABE
2 stops51h 36mUnited Airlines
Mon 9/211:30ABE - LHR
1 stop18h 45mUnited Airlines
Deal found 31/12£604
Sun 15/215:50MAN - ABE
3 stops33h 43mMultiple Airlines
Sun 22/207:00ABE - MAN
3 stops28h 15mMultiple Airlines
Deal found 1/1£1,247
Sat 14/210:25LHR - ABE
1 stop15h 28mUnited Airlines
Sat 21/214:55ABE - LHR
1 stop12h 00mUnited Airlines
Deal found 31/12£710
Thu 5/206:00MAN - ABE
2 stops33h 41mUnited Airlines
Mon 9/216:57ABE - MAN
2 stops38h 23mUnited Airlines
Deal found 31/12£721
Sun 15/206:00MAN - ABE
2 stops57h 01mUnited Airlines
Sun 22/206:28ABE - MAN
2 stops21h 17mUnited Airlines
Deal found 1/1£773
Sat 14/206:05MAN - ABE
2 stops19h 48mUnited Airlines
Sat 21/217:23ABE - MAN
2 stops35h 57mUnited Airlines
Deal found 31/12£810
Sun 15/213:20BHX - ABE
2 stops49h 41mUnited Airlines
Sun 22/217:23ABE - BHX
2 stops38h 22mUnited Airlines
Deal found 1/1£810
Sun 15/209:25EDI - ABE
2 stops16h 28mUnited Airlines
Sun 22/206:28ABE - EDI
2 stops20h 27mUnited Airlines
Deal found 1/1£1,155
Tue 3/209:25EDI - ABE
2 stops16h 40mUnited Airlines
Sat 7/206:15ABE - EDI
2 stops20h 40mUnited Airlines
Deal found 31/12£1,526

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 2 January 2026.

Round-trip from

£578

One-way from

£542
Delta
  • Delta
  • 14/2-21/2
  • 4 total stops
  • 35h 32m total
  • United Kingdom to Allentown
Search Deals
WestJet
  • WestJet
  • 19/1
  • 2 total stops
  • 26h 15m 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 2 January 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

Sat 14/2

06:30-22:49

2 stops21h 19m

Allentown-Bethlehem

Sat 21/2

12:47-06:25

1 stop12h 38m

£585

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/2

12:05-10:41

2 stops51h 36m

Allentown-Bethlehem

Mon 9/2

11:30-11:15

1 stop18h 45m

£604

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 14/2

10:25-20:53

1 stop15h 28m

Allentown-Bethlehem

Sat 21/2

14:55-07:55

1 stop12h 00m

£710

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/2

06:00-10:41

2 stops33h 41m

Allentown-Bethlehem

Mon 9/2

16:57-12:20

2 stops38h 23m

£721

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Sun 15/2

06:00-10:01

2 stops57h 01m

Allentown-Bethlehem

Sun 22/2

06:28-08:45

2 stops21h 17m

£773

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Sat 14/2

06:05-20:53

2 stops19h 48m

Allentown-Bethlehem

Sat 21/2

17:23-10:20

2 stops35h 57m

£810

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Sun 15/2

13:20-10:01

2 stops49h 41m

Allentown-Bethlehem

Sun 22/2

17:23-12:45

2 stops38h 22m

£810

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Sun 15/2

09:25-20:53

2 stops16h 28m

Allentown-Bethlehem

Sun 22/2

06:28-07:55

2 stops20h 27m

£1,155

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Sun 15/2

15:50-20:33

3 stops33h 43m

Allentown-Bethlehem

Sun 22/2

07:00-16:15

3 stops28h 15m

£1,247

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Tue 3/2

09:25-21:05

2 stops16h 40m

Allentown-Bethlehem

Sat 7/2

06:15-07:55

2 stops20h 40m

£1,526

Flights are sorted by cheapest return flights first.

Deals found on 30/12

Showing 1-10 of 27 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 £223). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £355). 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.

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 2 January 2026.
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
1,343 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

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
1,343 reviews
Finnair
7.6
Good
1,343 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

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 and United Airlines fly from United Kingdom to Allentown in about 21h 19m. The time it takes to get you to your destination can typically vary by up to 30h 17m. 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 Edinburgh Turnhouse - Allentown-Bethlehem. You may also consider London Heathrow - 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 £223). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £355). 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 2 January 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£528Average£564FlexibilityNo 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?

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