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Cheap flights from London to Allentown from £562

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ABE
24 Jun — 1 Jul1
1 adult

Cheap flight deals from London to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 June 2025.

Round-trip from

£562

Popular in

August

Cheapest in

April

Average price

£506
American Airlines
  • American Airlines
  • 14/7-20/7
  • 2 total stops
  • 64h 10m total
  • London to Allentown
Highest demand for flights based on searches. 20% potential increase in price (£121 potential increase over avg. return price).
Cheapest flight prices on average. 10% potential price decrease (£46 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from London to Allentown

Cheapest flights from London to Allentown
Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2025.

Mon 14/715:00LHR - ABE
1 stop33h 33mAmerican Airlines
Sun 20/720:03ABE - LHR
1 stop30h 37mAmerican Airlines
Deal found 18/6£562
Thu 26/609:00LHR - ABE
2 stops18h 29mDelta
Wed 23/712:55ABE - LHR
2 stops15h 20mDelta
Deal found 17/6£608
Sat 2/813:50LHR - ABE
2 stops37h 40mVirgin Atlantic
Sat 9/818:14ABE - LHR
2 stops35h 16mVirgin Atlantic
Deal found 18/6£703
Sat 23/808:30LHR - ABE
1 stop13h 23mUnited Airlines
Sun 31/817:28ABE - LHR
1 stop13h 17mUnited Airlines
Deal found 18/6£952
Sat 2/819:50LHR - ABE
3 stops32h 24mMultiple Airlines
Sat 9/806:00ABE - LHR
3 stops43h 30mMultiple Airlines
Deal found 18/6£1,084
Sun 3/814:10LHR - ABE
2 stops37h 20mWestJet
Sun 10/812:55ABE - LHR
2 stops42h 10mWestJet
Deal found 18/6£5,263

Cheapflights Fare Finder

Customise your flight search to find flights from London 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 19 June 2025.
Use the filters below to find and compare flights from London to Allentown that are best for you.

Fly from

London

Fly to

Allentown

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 14/7

15:00-19:33

1 stop33h 33m

Allentown-Bethlehem

Sun 20/7

20:03-07:40

1 stop30h 37m

£562

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 24/7

06:30-22:30

2 stops21h 00m

Allentown-Bethlehem

Thu 18/9

17:40-13:30

1 stop14h 50m

£669

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 2/8

13:50-22:30

2 stops37h 40m

Allentown-Bethlehem

Sat 9/8

18:14-10:30

2 stops35h 16m

£703

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 23/8

08:30-16:53

1 stop13h 23m

Allentown-Bethlehem

Sun 31/8

17:28-11:45

1 stop13h 17m

£952

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 2/8

19:50-23:14

3 stops32h 24m

Allentown-Bethlehem

Sat 9/8

06:00-06:30

3 stops43h 30m

£1,084

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 3/8

14:10-22:30

2 stops37h 20m

Allentown-Bethlehem

Sun 10/8

12:55-12:05

2 stops42h 10m

£5,263

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 3/7

11:20-22:29

1 stop16h 09m

£2,139

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 8/7

08:00-21:55

2 stops18h 55m

£2,339

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Best time to book a flight from London to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from London 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 London to Allentown

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 69.0 - 127.0 inches per month. July is typically the wettest month, when rainfall can reach 127.0 mm. February is typically the driest time to visit Allentown when rainfall is around 69.0 mm.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -2.0 C).

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 19 June 2025.

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from London 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 London?

    If you book a flight to Allentown from London, you will be flying to Allentown-Bethlehem, which is the city’s only airport. Allentown-Bethlehem (ABE) is located 3.9 mi from the center of Allentown. There are 0 flights from London to Allentown-Bethlehem per day from 1 airline.

  • What are the cheapest airlines flying from London to Allentown round-trip?

    Our cheapest airline available from London to Allentown is American Airlines. Our recent data shows that you can find tickets from as low as £562 on this airline. Additional options worth looking into are Delta and Virgin Atlantic, starting at £669 and £703 round-trip. These flights start at 12% lower than the current average price 3 months from now.

  • Can I find deals for flights from London to Allentown that include hotel bookings?

    Yes. In addition to deals on London to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Allentown.

  • Can I find deals for business class flights from London to Allentown?

    Yes. Cheapflights offers flight deals from London 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.

See more FAQs

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Alternative routes for London to Allentown

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to Allentown

Discover the top airline that operate flights from London 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 19 June 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£460Average£565FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Allentown?

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Allentown from London.

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

Need flexible booking options for your flight to Allentown from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Allentown from London today and book when prices fit your budget.

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