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Cheap flights from London Heathrow Airport to Allentown from £489

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Heathrow to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 17 January 2025.

Round-trip from

£489
Virgin Atlantic
  • Virgin Atlantic
  • 2/3-9/3
  • 3 total stops
  • 67h 29m total
  • London to Allentown
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Find flight deals from Heathrow to Allentown

Cheapest flights from Heathrow to Allentown
Explore the most affordable flight options available from Heathrow to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 2/317:05LHR - ABE
2 stops34h 34mVirgin Atlantic
Sun 9/317:25ABE - LHR
1 stop32h 55mVirgin Atlantic
Deal found 16/1£489
Sat 29/310:35LHR - ABE
2 stops13h 45mFinnair
Mon 7/411:00ABE - LHR
2 stops14h 55mFinnair
Deal found 16/1£523
Sat 29/316:10LHR - ABE
1 stop28h 35mKLM
Mon 7/417:17ABE - LHR
1 stop12h 53mKLM
Deal found 16/1£531
Mon 3/208:40LHR - ABE
2 stops18h 59mDelta
Sun 16/206:15ABE - LHR
2 stops19h 10mDelta
Deal found 17/1£537
Sun 2/310:25LHR - ABE
1 stop15h 59mUnited Airlines
Sun 9/317:38ABE - LHR
1 stop13h 37mUnited Airlines
Deal found 16/1£943
Sun 2/312:15LHR - ABE
3 stops30h 58mMultiple Airlines
Sun 9/307:30ABE - LHR
3 stops30h 50mMultiple Airlines
Deal found 16/1£1,240

Find flights from Heathrow to Allentown within your budget

Customise your flight search to find flights from Heathrow 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 January 2025.

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Fly to

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Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 2/3

17:05-22:39

2 stops34h 34m

Allentown-Bethlehem

Sun 9/3

17:25-06:20

1 stop32h 55m

£489

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 29/3

10:35-20:20

2 stops13h 45m

Allentown-Bethlehem

Mon 7/4

11:00-06:55

2 stops14h 55m

£523

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 29/3

16:10-16:45

1 stop28h 35m

Allentown-Bethlehem

Mon 7/4

17:17-11:10

1 stop12h 53m

£531

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 3/2

08:40-22:39

2 stops18h 59m

Allentown-Bethlehem

Sun 16/2

06:15-06:25

2 stops19h 10m

£537

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 2/3

10:25-21:24

1 stop15h 59m

Allentown-Bethlehem

Sun 9/3

17:38-11:15

1 stop13h 37m

£943

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 2/3

12:15-14:13

3 stops30h 58m

Allentown-Bethlehem

Sun 9/3

07:30-18:20

3 stops30h 50m

£1,240

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 12/5

15:15-23:25

1 stop13h 10m

£1,215

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Best time to book a flight from Heathrow to Allentown

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

Travel insights for flights from Heathrow to Allentown

Get recent, data-driven insights about flights from Heathrow to Allentown including ideal travel times, pricing trends, and more.

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 17 January 2025.
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,512 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
664 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very Good
8,512 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

    Most people fly into Allentown-Bethlehem (ABE) if they book a flight to Allentown from London Heathrow. On average, Allentown-Bethlehem has 0 inbound flights from London Heathrow per day from 0 airlines. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

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

    According to our current data, Virgin Atlantic (£489), Delta (£507), and Finnair (£523) offers the cheapest pricing from London Heathrow Airport to Allentown.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow to Allentown

See prices for flight routes from nearby airports that may be better suited for you.
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Gatwick to Erie flights

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Yes! Start tracking prices for Heathrow to Allentown flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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