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Cheap flights from Allentown to the United Kingdom from £298

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to the United Kingdom departing on 21/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Allentown to the United Kingdom

Cheap return flights

Delta Logo
06:00 - 06:45ABE-LHR
19h 45m1 stop
Delta Logo
09:20 - 17:34LHR-ABE
13h 14m1 stop
£394Delta
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Sun, 17 Aug - Tue, 26 Aug
Delta Logo
06:00 - 06:45ABE-LHR
19h 45m1 stop
Delta Logo
08:20 - 22:39LHR-ABE
19h 19m2 stops
£398Delta
Find Deal
Sun, 17 Aug - Tue, 26 Aug
United Airlines Logo
13:00 - 08:20ABE-LHR
14h 20m1 stop
United Airlines Logo
14:05 - 11:58LHR-ABE
26h 53m2 stops
£466United Airlines
Find Deal
Sun, 14 Sep - Tue, 23 Sep
United Airlines Logo
13:00 - 08:20ABE-LHR
14h 20m1 stop
United Airlines Logo
08:30 - 16:53LHR-ABE
13h 23m1 stop
£484United Airlines
Find Deal
Sun, 14 Sep - Tue, 23 Sep
Logo
13:00 - 06:20ABE-LHR
12h 20m1 stop
Logo
06:50 - 16:53LHR-ABE
15h 03m2 stops
£551
Find Deal
Sat, 20 Sep - Sat, 27 Sep
Virgin Atlantic Logo
13:00 - 10:30ABE-MAN
16h 30m1 stop
Virgin Atlantic Logo
19:40 - 17:14MAN-ABE
26h 34m2 stops
£599Virgin Atlantic
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Wed, 3 Dec - Sun, 7 Dec
Virgin Atlantic Logo
17:40 - 10:30ABE-MAN
11h 50m1 stop
Virgin Atlantic Logo
09:05 - 17:14MAN-ABE
13h 09m1 stop
£640Virgin Atlantic
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Wed, 3 Dec - Sun, 7 Dec
American Airlines Logo
16:30 - 13:05ABE-GLA
15h 35m2 stops
American Airlines Logo
10:50 - 22:52GLA-ABE
17h 02m2 stops
£725American Airlines
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Fri, 14 Nov - Tue, 18 Nov
American Airlines Logo
17:44 - 16:05ABE-ABZ
17h 21m2 stops
American Airlines Logo
09:00 - 00:17ABZ-ABE
20h 17m2 stops
£728American Airlines
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Wed, 3 Dec - Sun, 7 Dec
Logo
13:00 - 13:45ABE-LCY
19h 45m3 stops
Logo
09:20 - 21:54LCY-ABE
41h 34m2 stops
£940
Find Deal
Sat, 20 Sep - Sat, 27 Sep

United Airlines flights from Allentown to United Kingdom

Our best United Airlines deals on Allentown to United Kingdom flight tickets
United Airlines
14 Sept
ABE13:00Allentown-Bethlehem
14h 20m
1 stop
LHR08:20London Heathrow
23 Sept
LHR14:05London Heathrow
26h 53m
2 stops
ABE11:58Allentown-Bethlehem
£466
Find similar
United Airlines
14 Sept
ABE13:00Allentown-Bethlehem
14h 20m
1 stop
LHR08:20London Heathrow
23 Sept
LHR08:30London Heathrow
13h 23m
1 stop
ABE16:53Allentown-Bethlehem
£484
Find similar
United Airlines
10 Sept
ABE13:00Allentown-Bethlehem
12h 20m
1 stop
LHR06:20London Heathrow
25 Sept
LHR14:10London Heathrow
25h 28m
1 stop
ABE10:38Allentown-Bethlehem
£487
Find similar

Delta flights from Allentown to United Kingdom

Our best Delta deals on Allentown to United Kingdom flight tickets
Delta
17 Aug
ABE06:00Allentown-Bethlehem
19h 45m
1 stop
LHR06:45London Heathrow
26 Aug
LHR09:20London Heathrow
13h 14m
1 stop
ABE17:34Allentown-Bethlehem
£394
Find similar
Delta
17 Aug
ABE06:00Allentown-Bethlehem
19h 45m
1 stop
LHR06:45London Heathrow
26 Aug
LHR08:20London Heathrow
19h 19m
2 stops
ABE22:39Allentown-Bethlehem
£398
Find similar
Delta
16 Aug
ABE18:14Allentown-Bethlehem
31h 31m
1 stop
LHR06:45London Heathrow
26 Aug
LHR08:20London Heathrow
19h 19m
2 stops
ABE22:39Allentown-Bethlehem
£402
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momondo Fare Finder

 
Customise your flight search to find flights from Allentown to United Kingdom 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, momondo users made 279,928 searches. Data last updated 8 August 2025.
Use the filters below to find and compare flights from Allentown to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 17/8

06:00-06:45

1 stop19h 45m

London Heathrow

Tue 26/8

09:20-17:34

1 stop13h 14m

£394

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 17/8

06:00-06:45

1 stop19h 45m

London Heathrow

Tue 26/8

08:20-22:39

2 stops19h 19m

£398

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 14/9

13:00-08:20

1 stop14h 20m

London Heathrow

Tue 23/9

14:05-11:58

2 stops26h 53m

£466

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 14/9

13:00-08:20

1 stop14h 20m

London Heathrow

Tue 23/9

08:30-16:53

1 stop13h 23m

£484

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sat 20/9

13:00-06:20

1 stop12h 20m

London Heathrow

Sat 27/9

06:50-16:53

2 stops15h 03m

£551

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Wed 3/12

13:00-10:30

1 stop16h 30m

Manchester

Sun 7/12

19:40-17:14

2 stops26h 34m

£599

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Wed 3/12

17:40-10:30

1 stop11h 50m

Manchester

Sun 7/12

09:05-17:14

1 stop13h 09m

£640

AllentownGlasgow

ABE - GLA

ABEGLA

Allentown-Bethlehem

Fri 14/11

16:30-13:05

2 stops15h 35m

Glasgow Intl

Tue 18/11

10:50-22:52

2 stops17h 02m

£725

AllentownAberdeen

ABE - ABZ

ABEABZ

Allentown-Bethlehem

Wed 3/12

17:44-16:05

2 stops17h 21m

Aberdeen Dyce

Sun 7/12

09:00-00:17

2 stops20h 17m

£728

AllentownLondon

ABE - LCY

ABELCY

Allentown-Bethlehem

Sat 20/9

13:00-13:45

3 stops19h 45m

London City

Sat 27/9

09:20-21:54

2 stops41h 34m

£940

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Allentown to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Allentown-Bethlehem to United Kingdom?

United Airlines and Delta are the most popular carriers operating from Allentown-Bethlehem to United Kingdom

Which airlines fly to United Kingdom?

British Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to United Kingdom from Allentown according to our data. British Airways is the first choice among our users, with 53% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 10 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Cheap Allentown to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to United Kingdom

Best price found

£298

Fastest flight time

11h 50m

Direct flights

None

Airports in United Kingdom

4 airports
The best one-way flight to United Kingdom from Allentown in the past 72 hours is £298. The best return flight deal from Allentown to United Kingdom found on momondo in the last 72 hours is £394.
The fastest flight from Allentown to United Kingdom takes 11h 50m
There are no direct flights from Allentown to United Kingdom. Popular non-direct routes for this connection are Allentown-Bethlehem Airport - London City Airport, Allentown-Bethlehem Airport - Edinburgh Turnhouse Airport and Allentown-Bethlehem Airport - London Heathrow Airport.
There are 4 airports near United Kingdom: London City (LCY), London Heathrow (LHR), Edinburgh Turnhouse (EDI), Manchester (MAN)
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  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to United Kingdom?

    Prices for flights from Allentown-Bethlehem Airport to United Kingdom were last updated today.

  • How old do you have to be to fly from Allentown-Bethlehem Airport to United Kingdom?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Allentown-Bethlehem Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to United Kingdom?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Allentown to United Kingdom. momondo saves you time and could save you money on your trip.

Can I find flights from Allentown to United Kingdom with flexible booking policies on momondo?

momondo does allow users to show only those flights to United Kingdom from Allentown which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Allentown to United Kingdom?

momondo helps you find the best flight between Allentown and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Allentown to United Kingdom right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Allentown to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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