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Cheap flights from London Heathrow Airport to Lehigh Valley from £401

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
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Lehigh Valley

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Lehigh Valley
Explore the most affordable flight options available from Heathrow to Lehigh Valley. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Wed 17/1209:40LHR - ABE
2 stops17h 31mKLM
Wed 24/1214:00ABE - LHR
1 stop14h 00mKLM
Deal found 2/11£626
Wed 17/1207:40LHR - ABE
1 stop35h 15mUnited Airlines
Wed 24/1217:07ABE - LHR
1 stop13h 08mUnited Airlines
Deal found 2/11£789
Sat 8/1109:00LHR - ABE
2 stops17h 16mUnited Airlines
Sat 15/1113:00ABE - LHR
1 stop11h 55mUnited Airlines
Deal found 3/11£1,082
Sat 8/1110:45LHR - ABE
1 stop16h 30mDelta
Sat 15/1118:00ABE - LHR
1 stop12h 40mDelta
Deal found 3/11£1,190
Thu 18/1213:35LHR - ABE
1 stop13h 12mUnited Airlines
Thu 25/1206:17ABE - LHR
1 stop18h 38mUnited Airlines
Deal found 3/11£1,192
Sat 8/1114:50LHR - ABE
2 stops31h 29mWestJet
Sat 15/1112:56ABE - LHR
2 stops18h 54mWestJet
Deal found 3/11£10,952

Cheap flight deals from Heathrow to Lehigh Valley

Keep the following information in mind while searching for Heathrow to Lehigh Valley flight deals. Data was last updated 3 November 2025.

Round-trip from

£626

One-way from

£473

Popular in

December

Cheapest in

April

Average price

£588
KLM
  • KLM
  • 17/12-24/12
  • 3 total stops
  • 31h 31m total
  • London to Lehigh Valley
Search Deals
American Airlines
  • American Airlines
  • 11/12
  • 2 total stops
  • 35h 48m total
  • London to Lehigh Valley
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Lehigh Valley 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 3 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Lehigh Valley that are best for you.

Fly from

Heathrow

Fly to

Lehigh Valley

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 17/12

09:40-22:11

2 stops17h 31m

Allentown-Bethlehem

Wed 24/12

14:00-09:00

1 stop14h 00m

£626

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 17/12

07:40-13:55

1 stop35h 15m

Allentown-Bethlehem

Wed 24/12

17:07-11:15

1 stop13h 08m

£789

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 27/3

13:30-00:14

2 stops14h 44m

Allentown-Bethlehem

Tue 31/3

13:48-07:25

2 stops12h 37m

£814

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 18/12

13:35-21:47

1 stop13h 12m

Allentown-Bethlehem

Thu 25/12

06:17-05:55

1 stop18h 38m

£1,192

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 19/1

08:55-17:18

1 stop13h 23m

£401

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 11/12

16:10-15:53

2 stops28h 43m

£473

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 9/2

09:00-16:22

2 stops36h 22m

£479

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 11/12

08:55-17:14

1 stop13h 19m

£503

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 6/12

12:30-22:11

1 stop14h 41m

£503

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 15/12

08:55-17:14

1 stop13h 19m

£534

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 14 results
1
2

Best time to book a flight from Heathrow to Lehigh Valley

Have a flexible travel schedule? Discover the best time to fly to Lehigh Valley 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Lehigh Valley
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Lehigh Valley

Get insights into the airlines that provide service to Lehigh Valley. 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 Lehigh Valley. Reviews last updated 3 November 2025.
See what other customers who have flown with Finnair from London Heathrow Airport to Lehigh Valley have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

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
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

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 Heathrow to Lehigh Valley. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like KLM, United Airlines, and American Airlines fly from London Heathrow Airport to Lehigh Valley in about 14h 44m. The time it takes to get you to your destination can typically vary by up to 20h 31m. London Heathrow Airport and Lehigh Valley are separated by a distance of 3507 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from London Heathrow Airport to Lehigh Valley one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as £401. Users have also found prices from £473 and £479 on American Airlines and United Airlines, respectively.

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

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

  • How can I find direct flights from Heathrow to Lehigh Valley?

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Lehigh Valley 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 Lehigh Valley

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Top airline flying from Heathrow to Lehigh Valley

Discover the top airline that operate flights from Heathrow to Lehigh Valley. 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 3 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£542Average£613FlexibilityNo cancel feeOn-time76%
Search Finnair flights

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How does Cheapflights help users find flights from Heathrow to Lehigh Valley?

Deals for Heathrow to Lehigh Valley flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Lehigh Valley?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Lehigh Valley 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 Heathrow to Lehigh Valley with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Lehigh Valley with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Lehigh Valley become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Lehigh Valley flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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