Find flights
When to book
FAQs

Cheap flights from the United Kingdom to Allentown from £437

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
26 Jun — 3 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Allentown

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Allentown
Explore the most affordable flight options available from United Kingdom to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 May 2026.

Mon 28/913:25
LHR
-
ABE
1 stop32h 56m
KLM
Thu 29/1013:00
ABE
-
LHR
1 stop16h 00m
KLM
Deal found 23/5£696
Fri 4/1208:55
LHR
-
ABE
1 stop18h 51m
Virgin Atlantic
Wed 9/1206:30
ABE
-
LHR
1 stop21h 30m
Virgin Atlantic
Deal found 26/5£710
Mon 28/909:20
LHR
-
ABE
1 stop13h 01m
Delta
Thu 29/1013:00
ABE
-
LHR
2 stops15h 45m
Delta
Deal found 23/5£720
Fri 19/615:00
LHR
-
ABE
1 stop14h 21m
American Airlines
Mon 22/617:16
ABE
-
LHR
1 stop13h 59m
American Airlines
Deal found 22/5£771
Wed 10/613:25
LHR
-
ABE
1 stop14h 43m
Virgin Atlantic
Tue 23/613:12
ABE
-
LHR
2 stops15h 38m
Virgin Atlantic
Deal found 23/5£777
Tue 30/615:50
LHR
-
ABE
2 stops30h 40m
Air France
Sat 4/718:09
ABE
-
LHR
2 stops46h 16m
Air France
Deal found 26/5£780
Wed 10/611:10
LHR
-
ABE
1 stop17h 09m
Multiple Airlines
Tue 23/606:00
ABE
-
LHR
1 stop24h 15m
Multiple Airlines
Deal found 23/5£780
Fri 19/616:20
LHR
-
ABE
2 stops35h 48m
Virgin Atlantic
Mon 22/618:10
ABE
-
LHR
2 stops32h 55m
Virgin Atlantic
Deal found 22/5£795
Wed 10/608:40
LHR
-
ABE
2 stops37h 50m
KLM
Tue 23/618:05
ABE
-
LHR
2 stops17h 10m
KLM
Deal found 23/5£798
Mon 24/811:25
EDI
-
ABE
2 stops16h 15m
American Airlines
Thu 3/917:12
ABE
-
EDI
2 stops19h 23m
American Airlines
Deal found 26/5£803
Tue 7/705:50
EDI
-
ABE
2 stops17h 42m
American Airlines
Tue 14/719:09
ABE
-
EDI
2 stops15h 31m
American Airlines
Deal found 23/5£809
Thu 9/714:45
LHR
-
ABE
1 stop13h 23m
Finnair
Thu 16/706:15
ABE
-
LHR
2 stops19h 10m
Finnair
Deal found 25/5£812

Find flight deals from United Kingdom to Allentown

Keep the following information in mind while searching for United Kingdom to Allentown flight deals. Data was last updated 27 May 2026.

Round-trip from

£696

One-way from

£437
KLM
  • KLM
  • 28/9-29/10
  • 2 total stops
  • 48h 56m total
  • United Kingdom to Allentown
Search Deals
8/6
  • 8/6
  • 3 total stops
  • 48h 46m total
  • United Kingdom to Allentown
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 858,174 searches. Data last updated 27 May 2026.
Use the filters below to find and compare flights from the United Kingdom to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 9/7

15:00-00:23

1 stop14h 23m

Allentown-Bethlehem

Thu 16/7

17:12-11:15

1 stop13h 03m

£771

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 10/6

11:10-23:19

1 stop17h 09m

Allentown-Bethlehem

Tue 23/6

06:00-11:15

1 stop24h 15m

£780

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 19/6

16:20-23:08

2 stops35h 48m

Allentown-Bethlehem

Mon 22/6

18:10-08:05

2 stops32h 55m

£795

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 9/7

14:45-23:08

1 stop13h 23m

Allentown-Bethlehem

Thu 16/7

06:15-06:25

2 stops19h 10m

£812

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Mon 6/7

14:55-12:22

2 stops26h 27m

Allentown-Bethlehem

Mon 13/7

13:08-10:05

2 stops15h 57m

£821

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 6/10

13:10-22:15

1 stop14h 05m

Allentown-Bethlehem

Tue 13/10

06:00-06:50

1 stop19h 50m

£822

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 9/7

06:15-23:08

2 stops21h 53m

Allentown-Bethlehem

Thu 16/7

13:08-13:45

2 stops19h 37m

£831

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 29/7

06:15-17:25

2 stops16h 10m

Allentown-Bethlehem

Wed 5/8

18:13-06:25

1 stop31h 12m

£863

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Fri 13/11

09:25-10:06

2 stops29h 41m

Allentown-Bethlehem

Tue 17/11

17:36-07:55

2 stops33h 19m

£881

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 12/11

06:10-13:42

2 stops36h 32m

Allentown-Bethlehem

Mon 16/11

17:36-08:45

2 stops34h 09m

£891

Flights are sorted by cheapest return flights first.

Deals found on 25/5

Showing 1-10 of 51 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from United Kingdom to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from United Kingdom 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 the United Kingdom to Allentown
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 United Kingdom 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 United Kingdom?

    For a flight from United Kingdom to Allentown, you will be flying into Allentown-Bethlehem. Allentown-Bethlehem (ABE) is just 3.9 mi from the center of the city.

  • How long is the flight from United Kingdom to Allentown?

    Airlines like American Airlines, Virgin Atlantic, and Finnair fly from United Kingdom to Allentown in about 13h 23m. The time it takes to get you to your destination can typically vary by up to 22h 25m. The distance between United Kingdom and Allentown is about 3507 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from United Kingdom to Allentown?

    The most popular route from United Kingdom to Allentown is Manchester - Allentown-Bethlehem. You may also consider London Heathrow - Allentown-Bethlehem or Birmingham - Allentown-Bethlehem.

  • Can I find deals for flights from United Kingdom to Allentown that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Allentown.

  • Can I find deals for business class flights from United Kingdom to Allentown?

    Yes. Cheapflights offers flight deals from United Kingdom 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for United Kingdom to Allentown

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Gatwick to Newark flights
Stansted to John F Kennedy Intl flights
London City to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Luton to Newark flights
Heathrow to Dulles Intl flights
London City to Newark flights
Manchester to John F Kennedy Intl flights
Stansted to LaGuardia flights
Manchester to Newark flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Manchester to LaGuardia flights
Stansted to Dulles Intl flights
Heathrow to Philadelphia flights
Edinburgh to John F Kennedy Intl flights
London City to Dulles Intl flights
Luton to LaGuardia flights
Edinburgh to Newark flights
Gatwick to Reagan-National flights
Luton to Dulles Intl flights
Glasgow Intl to Newark flights
Edinburgh to LaGuardia flights
Southend to John F Kennedy Intl flights
Gatwick to Philadelphia flights
London City to Philadelphia flights
Birmingham to John F Kennedy Intl flights
Glasgow Intl to John F Kennedy Intl flights
Birmingham to Newark flights
Stansted to Philadelphia flights
Luton to Philadelphia flights
Manchester to Dulles Intl flights
Heathrow to Pittsburgh flights
Birmingham to LaGuardia flights
Glasgow Intl to LaGuardia flights
Edinburgh to Dulles Intl flights
Southend to Newark flights
Manchester to Reagan-National flights
Dublin to LaGuardia flights
Newcastle upon Tyne to John F Kennedy Intl flights
Leeds to John F Kennedy Intl flights
Leeds to Newark flights
Southampton to John F Kennedy Intl flights
Southampton to Newark flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from United Kingdom to Allentown?

Cheapflights helps you search for flights from United Kingdom to Allentown via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Allentown?

Millions of users choose and trust Cheapflights to book the best flight deals from United Kingdom to Allentown 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 United Kingdom to Allentown with no change fees?

Yes, we can. To see specific flights from United Kingdom to Allentown with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to Allentown become cheaper?

Not ready to book yet? You can track prices for flights from United Kingdom to Allentown on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.