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$399+ Cheap flights from Lehigh Valley to London (LON)

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — LON
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap flight deals from Lehigh Valley to London

Keep the following information in mind while searching for Lehigh Valley to London flight deals. Data was last updated January 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$608
(American Airlines)

One-way from

$399
(United Airlines)
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 (LON)
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One-way flight from Lehigh Valley to London (LON)
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Find flight deals from Lehigh Valley to London

Cheapest flights from Lehigh Valley to London
Explore the most affordable flight options available from Lehigh Valley to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 19, 2026.

This American Airlines deal was found by Cheapflights users on 1/17. 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 3/312:50 pm
ABE
-
LHR
1 stop13h 30m
American Airlines
Tue 3/1011:45 am
LHR
-
ABE
1 stop15h 46m
American Airlines
Deal found 1/17$608
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Sun 2/1510:36 am
ABE
-
LHR
1 stop19h 39m
United Airlines
Sun 2/226:50 am
LHR
-
ABE
2 stops32h 11m
United Airlines
Deal found 1/18$629
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Fri 2/276:28 am
ABE
-
LHR
1 stop20h 27m
United Airlines
Sun 3/111:10 am
LHR
-
ABE
2 stops38h 43m
United Airlines
Deal found 1/18$630
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Tue 3/310:36 am
ABE
-
LHR
2 stops17h 34m
United Airlines
Tue 3/106:50 am
LHR
-
ABE
2 stops18h 00m
United Airlines
Deal found 1/18$634
This United Airlines deal was found by Cheapflights users on 1/18. 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 2/1810:36 am
ABE
-
LHR
1 stop14h 19m
United Airlines
Mon 2/238:30 am
LHR
-
ABE
2 stops17h 23m
United Airlines
Deal found 1/18$640
This United Airlines deal was found by Cheapflights users on 1/17. 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 4/810:35 am
ABE
-
LHR
1 stop15h 10m
United Airlines
Tue 4/218:45 am
LHR
-
ABE
2 stops30h 13m
United Airlines
Deal found 1/17$646
This Delta deal was found by Cheapflights users on 1/16. 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 4/76:32 am
ABE
-
LHR
1 stop19h 13m
Delta
Tue 4/218:55 am
LHR
-
ABE
2 stops19h 04m
Delta
Deal found 1/16$653
This Delta deal was found by Cheapflights users on 1/18. 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 2/1712:47 pm
ABE
-
LHR
1 stop14h 03m
Delta
Tue 2/2412:30 pm
LHR
-
ABE
1 stop15h 19m
Delta
Deal found 1/18$658
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Sun 3/226:20 am
ABE
-
LHR
1 stop19h 35m
United Airlines
Fri 4/35:40 pm
LHR
-
ABE
2 stops28h 23m
United Airlines
Deal found 1/18$659
This United Airlines deal was found by Cheapflights users on 1/17. 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.
Mon 3/2310:31 am
ABE
-
LHR
1 stop15h 24m
United Airlines
Mon 3/303:30 pm
LHR
-
ABE
2 stops34h 47m
United Airlines
Deal found 1/17$661
This Delta deal was found by Cheapflights users on 1/18. 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 3/36:28 am
ABE
-
LCY
2 stops19h 47m
Delta
Tue 3/109:20 am
LCY
-
ABE
2 stops17h 36m
Delta
Deal found 1/18$665
This Ovago deal was found by Cheapflights users on 1/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
ABE
-
LGW
2 stops21h 40m
British Airways
Fri 8/2112:20 pm
LGW
-
ABE
2 stops30h 06m
British Airways
Deal found 1/17$841

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lehigh Valley to London 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 January 19, 2026.
Use the filters below to find and compare flights from Lehigh Valley to London that are best for you.

Fly from

Lehigh Valley

Fly to

London

Route

Depart

Return

Price

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 3/3

12:50 pm-9:15 am

1 stop15h 25m

London Heathrow

Tue 3/10

2:45 pm-11:31 pm

1 stop12h 46m

$608

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 2/15

10:36 am-9:20 am

2 stops17h 44m

London Heathrow

Sun 2/22

6:50 am-10:01 am

2 stops32h 11m

$629

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 3/3

10:36 am-9:10 am

2 stops17h 34m

London Heathrow

Tue 3/10

6:50 am-8:50 pm

2 stops18h 00m

$634

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 2/17

10:36 am-8:25 am

2 stops16h 49m

London Heathrow

Tue 2/24

6:50 am-4:48 pm

2 stops14h 58m

$634

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sat 4/11

5:58 pm-6:45 am

1 stop31h 47m

London Heathrow

Wed 4/22

8:55 am-10:59 pm

2 stops19h 04m

$658

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 2/15

2:00 pm-11:40 am

1 stop16h 40m

London Heathrow

Sun 2/22

8:55 am-10:49 pm

1 stop18h 54m

$658

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Thu 2/19

12:47 pm-6:25 am

1 stop12h 38m

London Heathrow

Sun 2/22

10:45 am-10:49 pm

1 stop17h 04m

$658

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 3/4

10:36 am-5:55 am

1 stop14h 19m

London Heathrow

Wed 3/11

10:25 am-8:50 pm

1 stop14h 25m

$658

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 3/25

6:20 am-5:55 am

1 stop19h 35m

London Heathrow

Tue 3/31

8:00 am-5:03 pm

1 stop14h 03m

$658

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 3/24

6:51 pm-11:15 am

1 stop12h 24m

London Heathrow

Tue 3/31

8:00 am-9:17 pm

1 stop18h 17m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 26 results
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Best time to book a flight from Lehigh Valley to London

Have a flexible travel schedule? Discover the best time to fly to London 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
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Lehigh Valley to London. 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 Lehigh Valley to London?

    A quick flight from Lehigh Valley to London can take about 15h 25m. American Airlines provides one of the quickest options available for as low as $608. There are 3507 mi between Lehigh Valley and London. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Lehigh Valley to London?

    When deciding which route to take from Lehigh Valley to London consider Allentown-Bethlehem - London Heathrow, Allentown-Bethlehem - London City or Allentown-Bethlehem - London Gatwick as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Lehigh Valley to London 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

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Alternative routes for Lehigh Valley to London

See prices for flight routes from nearby airports that may be better suited for you.
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Pittsburgh to Stansted flights
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Top airline flying from Lehigh Valley to London

Discover the top airline that operate flights from Lehigh Valley to London. 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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$690Average$824FlexibilityNo cancel feeOn-time69%

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