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Cheap flights from the United Kingdom to Allentown from £345

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
19 Aug — 26 Aug1
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 20 July 2026.

Sun 13/914:25
LHR
-
ABE
1 stop12h 52m
Finnair
Tue 6/1006:00
ABE
-
LHR
2 stops23h 15m
Finnair
Deal found 15/7£639
Sat 3/1015:00
LHR
-
ABE
1 stop13h 22m
Finnair
Wed 21/1006:00
ABE
-
LHR
2 stops23h 15m
Finnair
Deal found 16/7£646
Sat 3/1009:20
LHR
-
ABE
1 stop13h 11m
Virgin Atlantic
Wed 21/1013:00
ABE
-
LHR
1 stop13h 15m
Virgin Atlantic
Deal found 16/7£711
Sun 13/1217:15
LHR
-
ABE
2 stops28h 29m
Finnair
Wed 16/1217:14
ABE
-
LHR
1 stop33h 06m
Finnair
Deal found 18/7£718
Sun 13/1210:50
LHR
-
ABE
2 stops16h 56m
Virgin Atlantic
Wed 16/1206:30
ABE
-
LHR
2 stops19h 50m
Virgin Atlantic
Deal found 18/7£727
Sat 3/1015:00
LHR
-
ABE
1 stop13h 22m
American Airlines
Wed 21/1017:14
ABE
-
LHR
1 stop13h 56m
American Airlines
Deal found 16/7£745
Thu 12/1113:45
LHR
-
ABE
2 stops49h 11m
United Airlines
Mon 16/1117:32
ABE
-
LHR
2 stops22h 03m
United Airlines
Deal found 14/7£750
Tue 13/1007:00
EDI
-
ABE
2 stops20h 12m
Multiple Airlines
Thu 22/1018:20
ABE
-
EDI
2 stops17h 00m
Multiple Airlines
Deal found 19/7£766
Mon 19/1009:00
EDI
-
ABE
2 stops18h 12m
Multiple Airlines
Mon 26/1018:20
ABE
-
EDI
2 stops16h 55m
Multiple Airlines
Deal found 19/7£780
Tue 13/1010:30
EDI
-
ABE
2 stops17h 55m
American Airlines
Thu 22/1018:20
ABE
-
EDI
2 stops15h 00m
American Airlines
Deal found 19/7£798
Wed 14/1005:55
EDI
-
ABE
2 stops15h 40m
American Airlines
Wed 21/1018:20
ABE
-
EDI
2 stops15h 20m
American Airlines
Deal found 19/7£799
Tue 13/1010:30
EDI
-
ABE
2 stops16h 42m
Multiple Airlines
Wed 21/1018:20
ABE
-
EDI
2 stops15h 20m
Multiple Airlines
Deal found 19/7£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 20 July 2026.

Round-trip from

£639

One-way from

£345
Finnair
  • Finnair
  • 13/9-6/10
  • 3 total stops
  • 36h 07m total
  • United Kingdom to Allentown
Search Deals
29/8
  • 29/8
  • 2 total stops
  • 43h 16m 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 20 July 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

Sun 13/9

14:25-22:17

1 stop12h 52m

Allentown-Bethlehem

Tue 6/10

06:00-10:15

2 stops23h 15m

£639
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 3/10

09:20-17:31

1 stop13h 11m

Allentown-Bethlehem

Wed 21/10

13:00-07:15

1 stop13h 15m

£711

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 12/11

13:45-09:56

2 stops49h 11m

Allentown-Bethlehem

Mon 16/11

17:32-20:35

2 stops22h 03m

£750

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 25/9

13:10-22:18

1 stop14h 08m

Allentown-Bethlehem

Fri 23/10

06:00-09:05

1 stop22h 05m

£750

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 2/9

06:05-17:00

2 stops15h 55m

Allentown-Bethlehem

Wed 9/9

17:36-17:35

2 stops18h 59m

£871

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Tue 1/9

06:05-21:00

2 stops19h 55m

Allentown-Bethlehem

Tue 8/9

10:32-10:25

2 stops18h 53m

£872

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Thu 5/11

09:25-09:56

2 stops29h 31m

Allentown-Bethlehem

Sun 8/11

06:25-07:55

2 stops44h 30m

£881

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Wed 30/9

09:20-22:18

2 stops17h 58m

Allentown-Bethlehem

Sun 27/12

18:20-15:35

2 stops16h 15m

£884

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Thu 5/11

06:10-09:56

2 stops32h 46m

Allentown-Bethlehem

Mon 9/11

17:32-12:35

2 stops38h 03m

£887

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 5/11

06:10-09:56

2 stops32h 46m

Allentown-Bethlehem

Mon 9/11

17:32-16:55

2 stops42h 23m

£887

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 40 resultsSorted by cheapest first
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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 Finnair, Virgin Atlantic, and United Airlines fly from United Kingdom to Allentown in about 12h 52m. The time it takes to get you to your destination can typically vary by up to 36h 19m. 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 Manchester - 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

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Alternative routes for United Kingdom to Allentown

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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.

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