Find flights
When to book
FAQs

Cheap flights from the United Kingdom to Allentown from £357

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
30 Mar — 6 Apr1
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 28 February 2026.

Mon 13/416:55
LHR
-
ABE
1 stop12h 27m
American Airlines
Mon 20/412:00
ABE
-
LHR
1 stop13h 55m
American Airlines
Deal found 27/2£626
Sun 12/415:15
LHR
-
ABE
1 stop31h 04m
Virgin Atlantic
Sun 19/417:59
ABE
-
LHR
1 stop32h 16m
Virgin Atlantic
Deal found 26/2£631
Tue 14/409:00
EDI
-
ABE
2 stops19h 00m
Delta
Tue 21/417:59
ABE
-
EDI
1 stop12h 51m
Delta
Deal found 27/2£666
Wed 11/306:10
MAN
-
ABE
2 stops33h 20m
American Airlines
Tue 5/512:57
ABE
-
MAN
2 stops15h 53m
American Airlines
Deal found 24/2£668
Sat 2/511:15
LHR
-
ABE
1 stop16h 45m
Delta
Sat 9/518:15
ABE
-
LHR
1 stop14h 00m
Delta
Deal found 28/2£676
Wed 11/313:30
MAN
-
ABE
1 stop13h 26m
Virgin Atlantic
Tue 5/506:33
ABE
-
MAN
2 stops20h 52m
Virgin Atlantic
Deal found 24/2£677
Sun 12/420:55
LHR
-
ABE
2 stops49h 24m
KLM
Sun 19/417:59
ABE
-
LHR
1 stop31h 26m
KLM
Deal found 26/2£683
Tue 1/911:20
EDI
-
ABE
2 stops34h 57m
Delta
Tue 17/1106:30
ABE
-
EDI
2 stops23h 10m
Delta
Deal found 25/2£695
Wed 11/307:50
MAN
-
ABE
2 stops31h 40m
American Airlines
Sat 2/512:00
ABE
-
MAN
2 stops16h 45m
American Airlines
Deal found 24/2£698
Tue 1/911:20
EDI
-
ABE
2 stops16h 36m
Delta
Wed 18/1106:30
ABE
-
EDI
2 stops21h 05m
Delta
Deal found 25/2£699
Wed 11/313:30
MAN
-
ABE
1 stop13h 26m
Delta
Tue 5/506:33
ABE
-
MAN
2 stops29h 22m
Delta
Deal found 24/2£703
Wed 11/307:50
MAN
-
ABE
2 stops31h 40m
American Airlines
Wed 6/512:00
ABE
-
MAN
2 stops16h 50m
American Airlines
Deal found 24/2£704

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 28 February 2026.

Round-trip from

£626

One-way from

£357

Popular in

July

Cheapest in

September

Average price

£368
American Airlines
  • American Airlines
  • 13/4-20/4
  • 2 total stops
  • 26h 22m total
  • United Kingdom to Allentown
Search Deals
5/3
  • 5/3
  • 3 total stops
  • 42h 00m total
  • United Kingdom to Allentown
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 28 February 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

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Tue 14/4

09:00-23:00

2 stops19h 00m

Allentown-Bethlehem

Tue 21/4

17:59-11:50

1 stop12h 51m

£666

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 2/5

11:15-23:00

1 stop16h 45m

Allentown-Bethlehem

Sat 9/5

18:15-13:15

1 stop14h 00m

£676

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 11/3

13:30-22:56

1 stop13h 26m

Allentown-Bethlehem

Tue 5/5

06:33-16:55

2 stops29h 22m

£703

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 13/4

09:30-09:48

2 stops29h 18m

Allentown-Bethlehem

Mon 20/4

17:43-10:15

2 stops35h 32m

£724

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 12/3

13:30-22:56

1 stop13h 26m

Allentown-Bethlehem

Thu 7/5

06:27-20:05

2 stops32h 38m

£737

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Sun 12/4

10:35-23:00

2 stops41h 25m

Allentown-Bethlehem

Sun 19/4

17:59-12:40

2 stops37h 41m

£743

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Mon 13/4

06:05-09:48

2 stops32h 43m

Allentown-Bethlehem

Mon 20/4

17:43-17:10

2 stops18h 27m

£775

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 11/4

10:40-22:11

2 stops16h 31m

Allentown-Bethlehem

Sat 18/4

17:59-11:20

1 stop12h 21m

£797

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 11/4

11:05-17:03

2 stops34h 58m

Allentown-Bethlehem

Sat 18/4

17:40-10:40

2 stops36h 00m

£798

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Tue 10/3

13:30-22:56

1 stop13h 26m

Allentown-Bethlehem

Tue 5/5

17:59-07:15

1 stop32h 16m

£841

Flights are sorted by cheapest return flights first.

Deals found on 25/2

Showing 1-10 of 39 resultsSorted by cheapest first
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 £297). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £354). 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 Delta, United Airlines, and KLM fly from United Kingdom to Allentown in about 16h 31m. The time it takes to get you to your destination can typically vary by up to 16h 12m. 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 London Heathrow - Allentown-Bethlehem. You may also consider Edinburgh Turnhouse - Allentown-Bethlehem or Manchester - 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 £297). Flying from United Kingdom to Allentown in June is currently the most expensive (average of £354). 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 John F Kennedy Intl flights
Heathrow to Newark flights
Heathrow to LaGuardia flights
Gatwick to John F Kennedy Intl flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Stansted to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
London City to Newark flights
Manchester to John F Kennedy Intl flights
Heathrow to Dulles Intl flights
Luton to Newark flights
Edinburgh to John F Kennedy Intl flights
Edinburgh to Newark flights
Manchester to Newark flights
Manchester to LaGuardia flights
Heathrow to Reagan-National flights
Heathrow to Philadelphia flights
Gatwick to Dulles Intl flights
Edinburgh to LaGuardia flights
London City to Dulles Intl flights
Stansted to Dulles Intl flights
Glasgow Intl to Newark flights
Gatwick to Reagan-National flights
Luton to Dulles Intl flights
Glasgow Intl to John F Kennedy Intl flights
Heathrow to Pittsburgh flights
Stansted to LaGuardia flights
Gatwick to Philadelphia flights
Glasgow Intl to LaGuardia flights
Birmingham to John F Kennedy Intl flights
London City to Philadelphia flights
Birmingham to Newark flights
Southend to John F Kennedy Intl flights
Stansted to Philadelphia flights
Luton to Philadelphia flights
Luton to LaGuardia flights
Manchester to Dulles Intl flights
Birmingham to LaGuardia flights
Gatwick to Pittsburgh flights
Southampton to John F Kennedy Intl flights
Stansted to Pittsburgh flights
London City to Pittsburgh flights
Manchester to Reagan-National flights
Newcastle upon Tyne to John F Kennedy Intl flights
Southampton to Newark flights
Edinburgh to Dulles Intl flights
Newcastle upon Tyne to LaGuardia 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.