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$643+ Cheap flights from Heathrow (LHR) to Allentown (ABE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Heathrow to Allentown

Best flights from Heathrow to Allentown
Discover carefully curated flight deals from Heathrow to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This TravelUp deal was found by Cheapflights users on 12/26. 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 2/98:55 amLHR - ABE
1 stop13h 19mVirgin Atlantic
Mon 2/1612:47 pmABE - LHR
1 stop14h 03mVirgin Atlantic
Deal found 12/26$643
This Delta deal was found by Cheapflights users on 12/26. 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.
Sat 1/108:55 amLHR - ABE
1 stop18h 15mDelta
Wed 1/145:59 pmABE - LHR
1 stop12h 41mDelta
Deal found 12/26$722
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/512:05 pmLHR - ABE
2 stops51h 36mUnited Airlines
Mon 2/94:57 pmABE - LHR
1 stop31h 58mUnited Airlines
Deal found 12/26$816
This lastminute.com deal was found by Cheapflights users on 12/26. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/109:40 amLHR - ABE
2 stops17h 30mVirgin Atlantic
Wed 1/1412:50 pmABE - LHR
2 stops14h 15mVirgin Atlantic
Deal found 12/26$698
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:25 amLHR - ABE
1 stop15h 28mUnited Airlines
Sat 2/285:23 pmABE - LHR
1 stop12h 52mUnited Airlines
Deal found 12/26$918

Find 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 December 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$643
(TravelUp)
Provider with most accurate pricing for London Heathrow-Allentown-Bethlehem flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Allentown-Bethlehem flights.
Search Deals
From London Heathrow to Allentown-Bethlehem
Search Deals

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 December 28, 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 2/9

8:55 am-5:14 pm

1 stop13h 19m

Allentown-Bethlehem

Mon 2/16

12:47 pm-7:50 am

1 stop14h 03m

$643

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 1/10

9:40 am-10:10 pm

2 stops17h 30m

Allentown-Bethlehem

Wed 1/14

12:50 pm-8:05 am

2 stops14h 15m

$698

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 1/10

8:55 am-10:10 pm

1 stop18h 15m

Allentown-Bethlehem

Wed 1/14

5:59 pm-11:40 am

1 stop12h 41m

$722

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 2/5

12:05 pm-10:41 am

2 stops51h 36m

Allentown-Bethlehem

Mon 2/9

4:57 pm-5:55 am

1 stop31h 58m

$816

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 2/18

10:25 am-8:53 pm

1 stop15h 28m

Allentown-Bethlehem

Sat 2/28

5:23 pm-11:15 am

1 stop12h 52m

$918

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 1/12

8:55 am-5:18 pm

1 stop13h 23m

$1,208

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 3/11

11:40 am-12:29 am

2 stops16h 49m

$10,759

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 3/10

11:40 am-11:31 pm

2 stops15h 51m

$10,759

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 3/9

11:40 am-12:29 am

2 stops16h 49m

$10,793

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 3/11

10:45 am-10:59 pm

1 stop16h 14m

$10,959

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 12 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 $414). Flying from London Heathrow Airport to Allentown in June is currently the most expensive (average of $479). 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 13h 19m. Virgin Atlantic provides one of the quickest options available for as low as $643. 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 $414). Flying from London Heathrow Airport to Allentown in June is currently the most expensive (average of $479). 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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