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Allentown

$513+ Cheap flights from Heathrow (LHR) to Allentown (ABE)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$645
(TravelUp)

One-way from

$513
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$481
Provider with most accurate pricing for London Heathrow-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Allentown-Bethlehem flights.
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From London Heathrow to Allentown-Bethlehem
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One-way flight from London Heathrow to Allentown-Bethlehem
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Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 29, 2025.

This TravelUp deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/158:40 amLHR - ABE
2 stops18h 31mVirgin Atlantic
Mon 12/226:15 amABE - LHR
1 stop19h 10mVirgin Atlantic
Deal found 9/27$645
This American Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:05 pmLHR - ABE
2 stops23h 08mAmerican Airlines
Thu 11/65:10 pmABE - LHR
1 stop13h 50mAmerican Airlines
Deal found 9/27$669
This TravelUp deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:05 pmLHR - ABE
2 stops34h 06mVirgin Atlantic
Sat 12/66:00 pmABE - LHR
2 stops32h 50mVirgin Atlantic
Deal found 9/27$670
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:30 amLHR - ABE
2 stops20h 42mDelta
Tue 11/186:00 pmABE - LHR
1 stop12h 40mDelta
Deal found 9/27$675
This Delta deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:40 amLHR - ABE
2 stops18h 32mDelta
Wed 11/196:10 amABE - LHR
2 stops19h 55mDelta
Deal found 9/28$676
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:20 amLHR - ABE
2 stops19h 55mDelta
Mon 11/36:00 pmABE - LHR
2 stops20h 40mDelta
Deal found 9/27$680
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:55 amLHR - ABE
1 stop17h 20mDelta
Thu 11/612:46 pmABE - LHR
1 stop14h 04mDelta
Deal found 9/27$692
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:20 amLHR - ABE
2 stops20h 51mDelta
Mon 12/2212:48 pmABE - LHR
2 stops18h 07mDelta
Deal found 9/27$696

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Allentown that are best for you.

Fly from

Heathrow

Fly to

Allentown

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 12/15

10:45 am-5:14 pm

1 stop35h 29m

Allentown-Bethlehem

Mon 12/22

6:15 am-6:25 am

1 stop19h 10m

$663

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 10/28

7:05 pm-2:13 pm

2 stops23h 08m

Allentown-Bethlehem

Wed 11/5

4:30 pm-11:15 am

2 stops13h 45m

$669

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/29

6:00 pm-2:13 pm

2 stops24h 13m

Allentown-Bethlehem

Wed 11/5

4:30 pm-9:15 am

1 stop11h 45m

$669

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 10/28

7:05 pm-2:13 pm

2 stops23h 08m

Allentown-Bethlehem

Tue 11/4

4:30 pm-9:15 am

1 stop11h 45m

$669

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 12/2

5:05 pm-10:11 pm

2 stops34h 06m

Allentown-Bethlehem

Sat 12/6

6:00 pm-7:50 am

2 stops32h 50m

$670

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 11/12

8:40 am-10:12 pm

2 stops18h 32m

Allentown-Bethlehem

Wed 11/19

6:10 am-7:05 am

2 stops19h 55m

$676

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/29

6:20 am-10:15 pm

2 stops19h 55m

Allentown-Bethlehem

Mon 11/3

6:00 pm-6:25 am

1 stop31h 25m

$680

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/29

6:20 am-10:15 pm

2 stops19h 55m

Allentown-Bethlehem

Thu 11/6

6:00 am-6:50 am

2 stops19h 50m

$680

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/29

6:20 am-10:15 pm

2 stops19h 55m

Allentown-Bethlehem

Wed 11/5

12:46 pm-6:55 am

2 stops13h 09m

$680

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/29

10:45 am-10:15 pm

1 stop15h 30m

Allentown-Bethlehem

Tue 11/4

6:00 am-6:25 am

1 stop19h 25m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on London Heathrow Airport-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Allentown flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 Heathrow Airport to Allentown

What is the cheapest month to book a flight from London Heathrow Airport to Allentown?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Allentown (average of $289). Flying from London Heathrow Airport to Allentown in December is currently the most expensive (average of $380). 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.

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?

    For a flight from London Heathrow to Allentown, you will be flying into Allentown-Bethlehem. Allentown-Bethlehem (ABE) is just 3.9 mi from the center of the city. Allentown-Bethlehem is the only Allentown airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Allentown-Bethlehem from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Allentown?

    A quick flight from London Heathrow Airport to Allentown can take about 23h 08m. Virgin Atlantic provides one of the quickest options available for as low as $669. London Heathrow Airport and Allentown are separated by a distance of 3507 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Allentown?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Allentown (average of $289). Flying from London Heathrow Airport to Allentown in December is currently the most expensive (average of $380). 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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