£387 Find Cheap Flights from London Heathrow Airport to Lehigh Valley

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Lehigh Valley departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Lehigh Valley

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Lehigh Valley, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Lehigh Valley, as well as popular online travel agencies
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Flight Deals

Book Cheap Heathrow to Lehigh Valley Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Lehigh Valley that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Lehigh Valley

Wed, 28 Jan - Wed, 4 Feb
Delta Logo
08:40 - 22:50
LHR
-
ABE
19h 10m2 stops
Delta Logo
06:28 - 08:05
ABE
-
LHR
20h 37m2 stops
£592Delta
Wed, 28 Jan - Tue, 3 Feb
Delta Logo
08:55 - 17:14
LHR
-
ABE
13h 19m1 stop
Delta Logo
17:59 - 11:40
ABE
-
LHR
12h 41m1 stop
£605Delta
Tue, 7 Apr - Wed, 22 Apr
Delta Logo
09:55 - 22:47
LHR
-
ABE
17h 52m2 stops
Delta Logo
06:30 - 11:00
ABE
-
LHR
23h 30m2 stops
£618Delta
Mon, 23 Mar - Tue, 31 Mar
Delta Logo
12:30 - 22:47
LHR
-
ABE
14h 17m1 stop
Delta Logo
12:46 - 06:45
ABE
-
LHR
12h 59m1 stop
£619Delta
Wed, 25 Mar - Wed, 15 Apr
Delta Logo
08:40 - 22:47
LHR
-
ABE
18h 07m2 stops
Delta Logo
17:40 - 13:30
ABE
-
LHR
14h 50m1 stop
£621Delta
Thu, 29 Jan - Thu, 5 Feb
Delta Logo
06:30 - 22:50
LHR
-
ABE
21h 20m2 stops
Delta Logo
06:28 - 06:20
ABE
-
LHR
18h 52m2 stops
£622Delta
Tue, 24 Mar - Wed, 15 Apr
Delta Logo
09:00 - 22:47
LHR
-
ABE
17h 47m2 stops
Delta Logo
13:00 - 10:15
ABE
-
LHR
16h 15m2 stops
£626Delta
Mon, 6 Apr - Sun, 19 Apr
Delta Logo
13:05 - 22:47
LHR
-
ABE
14h 42m1 stop
Delta Logo
17:40 - 06:30
ABE
-
LHR
31h 50m1 stop
£631Delta
Tue, 24 Mar - Tue, 14 Apr
Delta Logo
15:50 - 12:06
LHR
-
ABE
24h 16m1 stop
Delta Logo
17:40 - 11:10
ABE
-
LHR
12h 30m1 stop
£634Delta
Thu, 29 Jan - Thu, 5 Feb
Delta Logo
10:45 - 22:50
LHR
-
ABE
17h 05m1 stop
Delta Logo
12:48 - 11:40
ABE
-
LHR
17h 52m1 stop
£635Delta
Booking Insights

KAYAK's insights & trends for Heathrow to Lehigh Valley flights

Get data-powered insights and trends into flights from Heathrow to Lehigh Valley to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a stopover from London Heathrow Airport to Lehigh Valley?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £396, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to Lehigh Valley?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Lehigh Valley, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Lehigh Valley is March, when tickets cost £380 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £547 and £502 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Lehigh Valley?

The average price of all round-trip flights from London Heathrow Airport to Lehigh Valley clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Lehigh Valley on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London Heathrow Airport to Lehigh Valley. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

How far in advance should I book a flight from London Heathrow Airport to Lehigh Valley?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Lehigh Valley, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to Lehigh Valley, you should book around 2 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Find deals

Good to know - Cheap tickets from London Heathrow Airport to Lehigh Valley

Low seasonJanuary
Cheapest flight£387
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from London Heathrow Airport to Allentown

FAQs - booking Lehigh Valley flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Lehigh Valley?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Lehigh Valley.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Lehigh Valley?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Lehigh Valley is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Lehigh Valley?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Lehigh Valley with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Lehigh Valley?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Lehigh Valley up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Lehigh Valley?

    The cheapest time of day to fly to Lehigh Valley is generally in the morning, when retur flights cost £487 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Lehigh Valley is generally at night, which is peak travel time and where the average cost of a ticket is £593.

Reviews of the top airline flying from Heathrow to Lehigh Valley

 
See real verified KAYAK customer reviews for airlines flying from London to Lehigh Valley. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Lehigh Valley? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1336 reviews
7.4Comfort
6.7Food
7.6Boarding
6.9Entertainment
8.1Crew
Airline reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

8.0 ExcellentDavid, Oct 2025
LHR - BWI
Read more Finnair reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Everything you need to know for your flight to Lehigh Valley

Information on your arrival and departure airports

London Heathrow Airport (LHR)