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Cheap flights from the United Kingdom to Allentown from £418

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
31 Jul — 7 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 1 July 2026.

Fri 18/915:00
LHR
-
ABE
1 stop13h 22m
Finnair
Tue 22/905:45
ABE
-
LHR
2 stops19h 30m
Finnair
Deal found 29/6£646
Mon 2/1116:50
LHR
-
ABE
2 stops34h 39m
Virgin Atlantic
Sun 8/1118:00
ABE
-
LHR
1 stop32h 50m
Virgin Atlantic
Deal found 27/6£683
Fri 18/911:15
LHR
-
ABE
1 stop16h 11m
KLM
Tue 22/918:08
ABE
-
LHR
1 stop14h 07m
KLM
Deal found 29/6£701
Tue 17/1112:30
LHR
-
ABE
1 stop15h 16m
Virgin Atlantic
Thu 19/1113:00
ABE
-
LHR
1 stop12h 25m
Virgin Atlantic
Deal found 27/6£753
Thu 17/908:45
LHR
-
ABE
2 stops29h 54m
United Airlines
Mon 21/910:32
ABE
-
LHR
1 stop20h 23m
United Airlines
Deal found 28/6£769
Wed 16/910:30
EDI
-
ABE
2 stops17h 52m
American Airlines
Tue 22/905:45
ABE
-
EDI
2 stops20h 55m
American Airlines
Deal found 30/6£787
Wed 16/910:30
EDI
-
ABE
2 stops16h 48m
American Airlines
Sun 20/911:35
ABE
-
EDI
2 stops17h 45m
American Airlines
Deal found 30/6£801
Wed 16/909:00
EDI
-
ABE
1 stop18h 26m
Delta
Mon 21/912:56
ABE
-
EDI
2 stops16h 44m
Delta
Deal found 30/6£809
Wed 16/909:00
EDI
-
ABE
1 stop13h 21m
Delta
Tue 22/918:08
ABE
-
EDI
1 stop12h 42m
Delta
Deal found 30/6£812
Thu 17/910:30
EDI
-
ABE
2 stops16h 47m
American Airlines
Sun 20/911:35
ABE
-
EDI
2 stops17h 45m
American Airlines
Deal found 30/6£831
Thu 17/905:45
EDI
-
ABE
2 stops16h 36m
Delta
Mon 21/912:56
ABE
-
EDI
2 stops16h 44m
Delta
Deal found 30/6£838
Wed 16/909:15
EDI
-
ABE
2 stops18h 11m
Delta
Sun 20/918:08
ABE
-
EDI
1 stop12h 42m
Delta
Deal found 30/6£842

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 1 July 2026.

Round-trip from

£646

One-way from

£418
Finnair
  • Finnair
  • 18/9-22/9
  • 4 total stops
  • 36h 52m total
  • United Kingdom to Allentown
Search Deals
American Airlines
  • American Airlines
  • 3/11
  • 2 total stops
  • 28h 33m 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 1 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

Fri 18/9

15:00-23:22

1 stop13h 22m

Allentown-Bethlehem

Tue 22/9

05:45-06:15

2 stops19h 30m

£646

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 17/9

08:45-09:39

2 stops29h 54m

Allentown-Bethlehem

Mon 21/9

17:36-20:40

2 stops22h 04m

£769

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Wed 16/9

09:00-22:26

1 stop18h 26m

Allentown-Bethlehem

Mon 21/9

12:56-10:40

2 stops16h 44m

£809
Fastest return journey

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Fri 18/9

05:45-17:21

2 stops16h 36m

Allentown-Bethlehem

Tue 22/9

18:08-11:50

1 stop12h 42m

£842

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Thu 17/9

09:15-22:26

2 stops18h 11m

Allentown-Bethlehem

Tue 22/9

18:08-11:50

1 stop12h 42m

£842

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Sat 21/11

06:15-22:12

2 stops20h 57m

Allentown-Bethlehem

Fri 4/12

18:20-14:20

2 stops15h 00m

£855

EdinburghAllentown

EDI - ABE

EDIABE

Edinburgh Turnhouse

Fri 4/9

11:30-21:00

1 stop14h 30m

Allentown-Bethlehem

Tue 8/9

17:36-10:35

2 stops35h 59m

£889

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Thu 8/10

10:35-17:08

2 stops59h 33m

Allentown-Bethlehem

Mon 12/10

06:20-17:10

2 stops29h 50m

£916

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 28/7

14:10-09:58

1 stop24h 48m

Allentown-Bethlehem

Tue 4/8

17:41-11:55

1 stop13h 14m

£928

BirminghamAllentown

BHX - ABE

BHXABE

Birmingham

Sat 21/11

06:10-20:57

2 stops19h 47m

Allentown-Bethlehem

Fri 4/12

10:37-12:35

2 stops20h 58m

£937

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 32 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, United Airlines, and Delta fly from United Kingdom to Allentown in about 13h 22m. The time it takes to get you to your destination can typically vary by up to 16h 32m. 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.

See more FAQs

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Alternative routes for United Kingdom to Allentown

See prices for flight routes from nearby airports that may be better suited for you.
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Southend to John F Kennedy Intl flights
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Heathrow to Pittsburgh flights
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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.

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