Find flights
When to book
FAQs

Cheap flights from the United Kingdom to Allentown from £488

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
21 Feb — 28 Feb1
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 22 January 2026.

Mon 23/210:40
LHR
-
ABE
2 stops18h 49m
American Airlines
Tue 10/312:45
ABE
-
LHR
2 stops14h 15m
American Airlines
Deal found 20/1£488
Mon 23/210:45
LHR
-
ABE
1 stop17h 04m
Delta
Wed 11/306:32
ABE
-
LHR
2 stops20h 23m
Delta
Deal found 20/1£505
Sun 22/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Tue 10/307:41
ABE
-
LHR
1 stop19h 39m
American Airlines
Deal found 20/1£517
Sun 22/208:55
LHR
-
ABE
1 stop13h 17m
Delta
Sun 8/317:58
ABE
-
LHR
1 stop32h 27m
Delta
Deal found 20/1£535
Sun 22/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Sat 7/312:00
ABE
-
LHR
2 stops13h 30m
American Airlines
Deal found 20/1£548
Sun 22/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Mon 9/312:00
ABE
-
LHR
2 stops14h 20m
American Airlines
Deal found 20/1£549
Mon 23/316:10
LHR
-
ABE
2 stops24h 06m
Delta
Tue 7/412:57
ABE
-
LHR
2 stops16h 23m
Delta
Deal found 20/1£560
Sun 22/214:45
LHR
-
ABE
1 stop14h 44m
American Airlines
Sun 8/312:00
ABE
-
LHR
2 stops14h 20m
American Airlines
Deal found 20/1£561
Sun 22/208:55
LHR
-
ABE
1 stop13h 17m
Delta
Sat 7/317:58
ABE
-
LHR
1 stop31h 27m
Delta
Deal found 20/1£564
Sun 22/208:55
LHR
-
ABE
1 stop13h 17m
Delta
Wed 11/317:58
ABE
-
LHR
1 stop32h 27m
Delta
Deal found 20/1£567
Sun 22/208:55
LHR
-
ABE
1 stop13h 17m
Delta
Fri 13/317:58
ABE
-
LHR
1 stop32h 27m
Delta
Deal found 20/1£596
Mon 23/311:45
LHR
-
ABE
1 stop16h 44m
American Airlines
Tue 7/412:57
ABE
-
LHR
1 stop12h 58m
American Airlines
Deal found 20/1£601

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 22 January 2026.

Round-trip from

£488
American Airlines
  • American Airlines
  • 23/2-10/3
  • 4 total stops
  • 33h 04m 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 22 January 2026.
Use the filters below to find and compare flights from the United Kingdom to Allentown that are best for you.

Fly from

United Kingdom

Fly to

Allentown

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

17:00-12:20

2 stops24h 20m

Allentown-Bethlehem

Thu 12/3

12:00-07:10

2 stops15h 10m

£488

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

14:45-12:20

1 stop26h 35m

Allentown-Bethlehem

Tue 10/3

07:41-07:20

1 stop19h 39m

£488

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

12:30-22:49

1 stop15h 19m

Allentown-Bethlehem

Sun 8/3

17:58-06:25

1 stop32h 27m

£505

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

14:40-12:05

2 stops26h 25m

Allentown-Bethlehem

Mon 9/3

12:56-06:25

1 stop13h 29m

£505

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

20:00-12:05

2 stops21h 05m

Allentown-Bethlehem

Wed 11/3

12:56-10:15

2 stops17h 19m

£505

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

11:45-00:29

1 stop17h 44m

Allentown-Bethlehem

Sat 7/3

12:00-09:15

2 stops16h 15m

£517

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 22/2

14:45-00:29

1 stop14h 44m

Allentown-Bethlehem

Tue 10/3

07:41-07:20

1 stop19h 39m

£517

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 22/2

09:55-00:29

1 stop19h 34m

Allentown-Bethlehem

Thu 12/3

12:00-07:10

2 stops15h 10m

£517

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 22/2

08:55-17:12

1 stop13h 17m

Allentown-Bethlehem

Sun 8/3

17:58-06:25

1 stop32h 27m

£535

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 23/2

12:30-22:49

1 stop15h 19m

Allentown-Bethlehem

Sat 7/3

17:58-06:25

1 stop31h 27m

£535

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 37 results
1
2
3
4

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

What is the cheapest month to book a flight from United Kingdom to Allentown?

Currently, March is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £211). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £356). 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.

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, Delta, and Virgin Atlantic fly from United Kingdom to Allentown in about 15h 19m. The time it takes to get you to your destination can typically vary by up to 9h 01m. 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.

  • What is the cheapest month to book a flight from United Kingdom to Allentown?

    Currently, March is the cheapest month in which you can book a flight from United Kingdom to Allentown (average of £211). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £356). 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

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 Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Gatwick to John F Kennedy Intl flights
Stansted to John F Kennedy Intl flights
Gatwick to LaGuardia flights
London City to Newark flights
Luton to John F Kennedy Intl flights
Manchester to John F Kennedy Intl flights
Luton to Newark flights
Stansted to Newark flights
Heathrow to Dulles Intl flights
Manchester to Newark flights
Edinburgh to John F Kennedy Intl flights
Manchester to LaGuardia flights
Edinburgh to Newark flights
Heathrow to Philadelphia flights
Heathrow to Reagan-National flights
Edinburgh to LaGuardia flights
Gatwick to Dulles Intl flights
Glasgow Intl to Newark flights
London City to Dulles Intl flights
Stansted to Dulles Intl flights
Glasgow Intl to John F Kennedy Intl flights
Gatwick to Reagan-National flights
Birmingham to John F Kennedy Intl flights
Luton to Dulles Intl flights
Stansted to LaGuardia flights
Heathrow to Pittsburgh flights
Glasgow Intl to LaGuardia flights
Luton to LaGuardia flights
Gatwick to Philadelphia flights
Birmingham to Newark flights
Birmingham to LaGuardia flights
London City to Philadelphia flights
Edinburgh to Philadelphia flights
Manchester to Dulles Intl flights
Southend to John F Kennedy Intl flights
Leeds to John F Kennedy Intl flights
Edinburgh to Dulles Intl flights
Stansted to Philadelphia flights
London City to LaGuardia flights
Liverpool to John F Kennedy Intl flights
Manchester to Reagan-National flights
Manchester to Philadelphia flights
Gatwick to Pittsburgh flights
Southampton to John F Kennedy Intl flights
Luton to Philadelphia 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.