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$399+ Cheap flights from Lehigh Valley to Heathrow (LHR)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — LHR
May 11 — May 181
Sun 5/11
Sun 5/18
1 adult, Economy
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Cheap flight deals from Lehigh Valley to Heathrow

Keep the following information in mind while searching for Lehigh Valley to Heathrow flight deals. Data was last updated May 6, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$748
(Delta)

One-way from

$399
(Delta)

Popular in

January

Cheapest in

February

Average price

$768
Provider with most accurate pricing for Allentown-Bethlehem-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-London (LON) flights.
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From Lehigh Valley to London Heathrow
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One-way flight from Lehigh Valley to London Heathrow
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Highest demand for flights based on searches. 25% potential increase in price ($400 potential increase over avg. RT price).
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Cheapest flight prices on average. 14% potential price decrease ($151 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Lehigh Valley to Heathrow

Cheapest flights from Lehigh Valley to Heathrow
Explore the most affordable flight options available from Lehigh Valley to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2025.

This Delta deal was found by Cheapflights users on 5/5. 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.
Sun 9/75:40 pmABE - LHR
1 stop12h 30mDelta
Fri 9/269:20 amLHR - ABE
1 stop12h 54mDelta
Deal found 5/5$608
This United Airlines deal was found by Cheapflights users on 5/5. 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 8/65:35 pmABE - LHR
1 stop13h 10mUnited Airlines
Tue 8/198:30 amLHR - ABE
1 stop13h 23mUnited Airlines
Deal found 5/5$648
This American Airlines deal was found by Cheapflights users on 5/6. 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.
Fri 5/95:27 pmABE - LHR
1 stop10h 38mAmerican Airlines
Sat 5/179:15 amLHR - ABE
1 stop12h 40mAmerican Airlines
Deal found 5/6$838
This KLM deal was found by Cheapflights users on 5/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/256:05 pmABE - LHR
1 stop14h 25mKLM
Thu 7/39:20 amLHR - ABE
1 stop18h 09mKLM
Deal found 5/4$1,013
This Mytrip deal was found by Cheapflights users on 5/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/126:00 amABE - LHR
2 stops33h 20mMultiple Airlines
Thu 5/151:05 pmLHR - ABE
2 stops28h 40mMultiple Airlines
Deal found 5/5$1,157

Cheapflights Fare Finder

Customize your flight search to find flights from Lehigh Valley to Heathrow 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 May 6, 2025.
Use the filters below to find and compare flights from Lehigh Valley to London Heathrow Airport that are best for you.

Fly from

Lehigh Valley

Fly to

Heathrow

Route

Depart

Return

Price

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 9/7

5:40 pm-11:10 am

1 stop12h 30m

London Heathrow

Fri 9/26

9:20 am-5:14 pm

1 stop12h 54m

$608

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 8/6

5:35 pm-11:45 am

1 stop13h 10m

London Heathrow

Tue 8/19

8:30 am-4:53 pm

1 stop13h 23m

$648

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 6/3

5:27 pm-9:00 am

1 stop10h 33m

London Heathrow

Tue 6/10

3:00 pm-12:20 am

1 stop14h 20m

$997

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 6/25

6:05 pm-1:30 pm

1 stop14h 25m

London Heathrow

Thu 7/3

9:20 am-10:29 pm

1 stop18h 09m

$1,013

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 8/18

1:00 pm-11:10 am

1 stop17h 10m

$399

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Fri 10/17

12:57 pm-11:55 am

3 stops41h 58m

$421

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Thu 8/14

6:30 am-6:55 am

2 stops19h 25m

$466

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Best time to book a flight from Lehigh Valley to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Lehigh Valley 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 Lehigh Valley to London Heathrow Airport

What is the cheapest time of day to fly from YGE to LHR?

Find hourly flight availability from Lehigh Valley to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 6, 2025.

When flying from Lehigh Valley to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated May 6, 2025.
To help decide which airline to fly from Lehigh Valley to London, see what other customers have to say about Delta, KLM and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

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!
Delta
8.0
Very good
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

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!
KLM
7.8
Good
1,337 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

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!
United Airlines
7.4
Good
8,708 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,944 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Lehigh Valley to Heathrow 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 Lehigh Valley to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Lehigh Valley to London Heathrow Airport (average of $661). Flying from Lehigh Valley to London Heathrow Airport in June is currently the most expensive (average of $1,103). 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

Traveling to a place near Lehigh Valley?

Book flights to Lehigh Valley if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Wembley
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Borehamwood
Folkestone
Ilford
Broadway
Aylesbury
Sutton

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Alternative routes for Lehigh Valley to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Lehigh Valley to Heathrow

Discover the top 3 airlines that operate flights from Lehigh Valley to Heathrow. 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 2,558,603 searches. Data last updated May 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$575Average$833FlexibilityNo cancel feeOn-time69%
DeltaCheapest$597Average$777FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$639Average$832FlexibilityNo cancel feeOn-time71%

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