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Cheap flights from London to Allentown from £540

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Allentown departing on 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London to Allentown

Cheap return flights

Delta Logo
08:40 - 22:41LHR-ABE
19h 01m2 stops
Delta Logo
12:48 - 08:50ABE-LHR
15h 02m2 stops
£540Delta
Find Deal
Mon, 15 Sep - Mon, 22 Sep
Delta Logo
09:20 - 22:41LHR-ABE
18h 21m1 stop
Delta Logo
12:48 - 07:15ABE-LHR
13h 27m1 stop
£554Delta
Find Deal
Mon, 15 Sep - Mon, 22 Sep
Virgin Atlantic Logo
09:20 - 17:31LHR-ABE
13h 11m1 stop
Virgin Atlantic Logo
18:00 - 13:30ABE-LHR
14h 30m1 stop
£564Virgin Atlantic
Find Deal
Fri, 3 Oct - Mon, 6 Oct
Delta Logo
20:25 - 12:04LHR-ABE
20h 39m2 stops
Delta Logo
06:00 - 07:15ABE-LHR
20h 15m2 stops
£584Delta
Find Deal
Fri, 3 Oct - Mon, 6 Oct
United Airlines Logo
08:30 - 21:54LHR-ABE
18h 24m2 stops
United Airlines Logo
13:00 - 06:20ABE-LHR
12h 20m1 stop
£610United Airlines
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Virgin Atlantic Logo
09:20 - 22:41LHR-ABE
18h 21m1 stop
Virgin Atlantic Logo
18:00 - 11:10ABE-LHR
12h 10m1 stop
£614Virgin Atlantic
Find Deal
Fri, 3 Oct - Mon, 6 Oct
United Airlines Logo
08:30 - 21:54LHR-ABE
18h 24m1 stop
United Airlines Logo
17:28 - 11:45ABE-LHR
13h 17m1 stop
£632United Airlines
Find Deal
Sat, 13 Sep - Sat, 20 Sep
American Airlines Logo
09:45 - 22:37LHR-ABE
17h 52m2 stops
American Airlines Logo
13:56 - 09:05ABE-LHR
14h 09m1 stop
£1,137American Airlines
Find Deal
Sun, 10 Aug - Sun, 17 Aug
Logo
08:30 - 21:57LHR-ABE
18h 27m1 stop
Logo
17:28 - 15:40ABE-LHR
17h 12m2 stops
£1,370
Find Deal
Mon, 11 Aug - Mon, 25 Aug
Logo
06:00 - 21:57LHR-ABE
20h 57m2 stops
Logo
13:00 - 09:55ABE-LHR
15h 55m2 stops
£1,488
Find Deal
Mon, 11 Aug - Mon, 25 Aug

Delta flights from London to Allentown

Our best Delta deals on London to Allentown flight tickets
Delta
15 Sept
LHR08:40London Heathrow
19h 01m
2 stops
ABE22:41Allentown-Bethlehem
22 Sept
ABE12:48Allentown-Bethlehem
15h 02m
2 stops
LHR08:50London Heathrow
£540
Find similar
Delta
15 Sept
LHR09:20London Heathrow
18h 21m
1 stop
ABE22:41Allentown-Bethlehem
22 Sept
ABE12:48Allentown-Bethlehem
13h 27m
1 stop
LHR07:15London Heathrow
£554
Find similar
Delta
3 Oct
LHR20:25London Heathrow
20h 39m
2 stops
ABE12:04Allentown-Bethlehem
6 Oct
ABE06:00Allentown-Bethlehem
20h 15m
2 stops
LHR07:15London Heathrow
£584
Find similar

Virgin Atlantic flights from London to Allentown

Our best Virgin Atlantic deals on London to Allentown flight tickets
Virgin Atlantic
3 Oct
LHR09:20London Heathrow
13h 11m
1 stop
ABE17:31Allentown-Bethlehem
6 Oct
ABE18:00Allentown-Bethlehem
14h 30m
1 stop
LHR13:30London Heathrow
£564
Find similar
Virgin Atlantic
3 Oct
LHR09:20London Heathrow
18h 21m
1 stop
ABE22:41Allentown-Bethlehem
6 Oct
ABE18:00Allentown-Bethlehem
12h 10m
1 stop
LHR11:10London Heathrow
£614
Find similar
Virgin Atlantic
3 Oct
LHR09:20London Heathrow
13h 11m
1 stop
ABE17:31Allentown-Bethlehem
6 Oct
ABE06:00Allentown-Bethlehem
20h 15m
1 stop
LHR07:15London Heathrow
£620
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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, momondo users made 279,928 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from London to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 15/9

08:40-22:41

2 stops19h 01m

Allentown-Bethlehem

Mon 22/9

12:48-08:50

2 stops15h 02m

£540

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 15/9

09:20-22:41

1 stop18h 21m

Allentown-Bethlehem

Mon 22/9

12:48-07:15

1 stop13h 27m

£554

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

09:20-17:31

1 stop13h 11m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£564

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

20:25-12:04

2 stops20h 39m

Allentown-Bethlehem

Mon 6/10

06:00-07:15

2 stops20h 15m

£584

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 13/9

08:30-21:54

2 stops18h 24m

Allentown-Bethlehem

Sat 20/9

13:00-06:20

1 stop12h 20m

£610

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

09:20-22:41

1 stop18h 21m

Allentown-Bethlehem

Mon 6/10

18:00-11:10

1 stop12h 10m

£614

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 13/9

08:30-21:54

1 stop18h 24m

Allentown-Bethlehem

Sat 20/9

17:28-11:45

1 stop13h 17m

£632

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 10/8

09:45-22:37

2 stops17h 52m

Allentown-Bethlehem

Sun 17/8

13:56-09:05

1 stop14h 09m

£1,137

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 11/8

08:30-21:57

1 stop18h 27m

Allentown-Bethlehem

Mon 25/8

17:28-15:40

2 stops17h 12m

£1,370

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 11/8

06:00-21:57

2 stops20h 57m

Allentown-Bethlehem

Mon 25/8

13:00-09:55

2 stops15h 55m

£1,488

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 Allentown from

How to get the cheapest flight ticket from London to Allentown

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 day to depart on your flight to Allentown?

The cheapest day to depart from London to Allentown is on a Monday when prices can be found for as low as £474. Flights from London to Allentown on a Sunday will generally be more expensive and average around £848. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Allentown?

Flying to Allentown from London at midday is the least expensive time of day to depart. momondo users have found prices as low as £577 when looking at flights departing at midday. Flights in the morning are often more expensive, with an average ticket price of £618.

When to book flights from London to Allentown

Are you open to changing your travel dates? Check out the ideal times to fly from London to Allentown according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Allentown (LON to ABE) flight deals and tips

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

Best price found

£628

Fastest flight time

13h 11m

Direct flights

None

Airports in Allentown

1 airport
The best one-way flight to Allentown from London in the past 72 hours is £628. The best return flight deal from London to Allentown found on momondo in the last 72 hours is £540.
The fastest flight from London to Allentown takes 13h 11m
There are no direct flights from London to Allentown. Popular non-direct route for this connection is London Heathrow Airport - Allentown-Bethlehem Airport.
There is 1 airport near Allentown: Allentown-Bethlehem (ABE)
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  • How far is London to Allentown-Bethlehem by plane?

    Allentown-Bethlehem is 3523.4 mi away from London. Flights usually cover this in 13h 11m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London to Allentown-Bethlehem Airport?

    Prices for flights from London to Allentown-Bethlehem Airport refresh daily.

  • How many operators does momondo search for flights from London to Allentown-Bethlehem Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The travel and health documents you'll need for your trip to Allentown-Bethlehem Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Allentown-Bethlehem Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London to Allentown?

Best airlines flying from London to Allentown

Compare and see reviews for airlines that fly from London to Allentown with momondo
Airline
Rating
Free Cancellation
Price
FinnairPriceFrom £480Free CancellationRating
7.6
1,316 reviews
Search Finnair flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Allentown from London.

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

Yes. All flights to Allentown from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Allentown?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Allentown from London.

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

If you are not ready to book a flight from London to Allentown now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Allentown and let you know when they change.

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