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Cheap flights from Allentown to the United Kingdom from £299

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 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Allentown to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
17:22 - 08:30ABE-LHR
34h 08m2 stops
United Airlines Logo
06:50 - 16:47LHR-ABE
14h 57m2 stops
£470United Airlines
Find Deal
Mon, 10 Nov - Wed, 19 Nov
Multiple Airlines Logo
12:54 - 07:50ABE-LHR
13h 56m1 stop
Multiple Airlines Logo
08:55 - 22:11LHR-ABE
18h 16m1 stop
£481Multiple Airlines
Find Deal
Sun, 7 Dec - Sun, 14 Dec
Multiple Airlines Logo
12:54 - 07:50ABE-LHR
13h 56m1 stop
Multiple Airlines Logo
08:55 - 22:11LHR-ABE
18h 16m1 stop
£482Multiple Airlines
Find Deal
Sun, 7 Dec - Sun, 14 Dec
Virgin Atlantic Logo
12:54 - 10:10ABE-MAN
16h 16m2 stops
Virgin Atlantic Logo
13:30 - 22:11MAN-ABE
13h 41m1 stop
£487Virgin Atlantic
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Sat, 6 Dec - Sat, 13 Dec
Delta Logo
12:54 - 09:00ABE-LHR
15h 06m1 stop
Delta Logo
08:55 - 22:11LHR-ABE
18h 16m1 stop
£488Delta
Find Deal
Sun, 7 Dec - Sun, 14 Dec
Delta Logo
12:54 - 13:45ABE-LHR
19h 51m2 stops
Delta Logo
08:55 - 22:11LHR-ABE
18h 16m1 stop
£502Delta
Find Deal
Sun, 7 Dec - Sun, 14 Dec
American Airlines Logo
17:14 - 14:00ABE-MAN
15h 46m2 stops
American Airlines Logo
08:50 - 23:06MAN-ABE
19h 16m2 stops
£535American Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
American Airlines Logo
17:14 - 14:00ABE-MAN
15h 46m2 stops
American Airlines Logo
09:40 - 23:06MAN-ABE
18h 26m2 stops
£560American Airlines
Find Deal
Sun, 7 Dec - Sun, 14 Dec
Virgin Atlantic Logo
17:40 - 10:30ABE-MAN
12h 50m1 stop
Virgin Atlantic Logo
20:40 - 22:52MAN-ABE
31h 12m2 stops
£578Virgin Atlantic
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Fri, 27 Mar - Tue, 31 Mar
British Airways Logo
06:10 - 14:00ABE-MAN
26h 50m2 stops
British Airways Logo
15:10 - 13:30MAN-ABE
27h 20m3 stops
£700British Airways
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Sat, 6 Dec - Sat, 13 Dec

Delta flights from Allentown to United Kingdom

Our best Delta deals on Allentown to United Kingdom flight tickets
Delta
26 Oct
ABE06:00Allentown-Bethlehem
20h 25m
1 stop
LHR06:25London Heathrow
13 Nov
LHR06:20London Heathrow
20h 52m
2 stops
ABE22:12Allentown-Bethlehem
£445
Find similar
Delta
26 Oct
ABE06:00Allentown-Bethlehem
20h 25m
1 stop
LHR06:25London Heathrow
12 Nov
LHR06:30London Heathrow
15h 49m
2 stops
ABE17:19Allentown-Bethlehem
£445
Find similar
Delta
25 Oct
ABE18:00Allentown-Bethlehem
32h 25m
1 stop
LHR07:25London Heathrow
13 Nov
LHR06:20London Heathrow
20h 52m
2 stops
ABE22:12Allentown-Bethlehem
£448
Find similar

KLM flights from Allentown to United Kingdom

Our best KLM deals on Allentown to United Kingdom flight tickets
KLM
7 Dec
ABE12:54Allentown-Bethlehem
15h 06m
2 stops
LHR09:00London Heathrow
14 Dec
LHR08:55London Heathrow
13h 19m
1 stop
ABE17:14Allentown-Bethlehem
£709
Find similar
KLM
28 Oct
ABE12:46Allentown-Bethlehem
15h 04m
1 stop
LHR07:50London Heathrow
2 Dec
LHR10:45London Heathrow
16h 26m
1 stop
ABE22:11Allentown-Bethlehem
£748
Find similar
KLM
7 Dec
ABE12:54Allentown-Bethlehem
15h 06m
2 stops
LHR09:00London Heathrow
14 Dec
LHR06:30London Heathrow
15h 44m
2 stops
ABE17:14Allentown-Bethlehem
£841
Find similar

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 24 October 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

Mon 10/11

17:22-08:30

2 stops34h 08m

London Heathrow

Wed 19/11

06:50-16:47

2 stops14h 57m

£470

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 7/12

12:54-07:50

1 stop13h 56m

London Heathrow

Sun 14/12

08:55-22:11

1 stop18h 16m

£481

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 7/12

12:54-07:50

1 stop13h 56m

London Heathrow

Sun 14/12

08:55-22:11

1 stop18h 16m

£482

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Sat 6/12

12:54-10:10

2 stops16h 16m

Manchester

Sat 13/12

13:30-22:11

1 stop13h 41m

£487

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 7/12

12:54-09:00

1 stop15h 06m

London Heathrow

Sun 14/12

08:55-22:11

1 stop18h 16m

£488

AllentownLondon

ABE - LHR

ABELHR

Allentown-Bethlehem

Sun 7/12

12:54-13:45

2 stops19h 51m

London Heathrow

Sun 14/12

08:55-22:11

1 stop18h 16m

£502

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Sat 6/12

17:14-14:00

2 stops15h 46m

Manchester

Sat 13/12

08:50-23:06

2 stops19h 16m

£535

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Sun 7/12

17:14-14:00

2 stops15h 46m

Manchester

Sun 14/12

09:40-23:06

2 stops18h 26m

£560

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Fri 27/3

17:40-10:30

1 stop12h 50m

Manchester

Tue 31/3

20:40-22:52

2 stops31h 12m

£578

AllentownManchester

ABE - MAN

ABEMAN

Allentown-Bethlehem

Sat 6/12

06:10-14:00

2 stops26h 50m

Manchester

Sat 13/12

15:10-13:30

3 stops27h 20m

£700

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 50% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 9 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

Direct flights

None
There are no direct flights from Allentown to United Kingdom. There are no popular flight routes from Allentown to United Kingdom.
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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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Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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