Which airlines fly to Allentown?

British Airways, Lufthansa and United Airlines are the top three most popular airlines that fly to Allentown from London according to our data. British Airways is the first choice among our users, with 46% of people opting to fly with this airline when travelling to Allentown. Keep in mind that there are 18 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

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

Delta and KLM are the most popular carriers operating from London to Allentown-Bethlehem

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?

The number of operators available for flights from London to Allentown-Bethlehem Airport is 1 as of September 2025.

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.

£441 Cheap Flights from London to Allentown in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London to Allentown

Round-trip

One-way

Last minute

Cheap return flights

09:20 - 22:41LHR-ABE

18h 21m1 stop

18:00 - 13:30ABE-LHR

14h 30m1 stop

£525Virgin Atlantic

Find Deal

Fri, 3 Oct - Mon, 6 Oct

11:20 - 22:41LHR-ABE

16h 21m1 stop

18:00 - 13:30ABE-LHR

14h 30m1 stop

£526Virgin Atlantic

Find Deal

Fri, 3 Oct - Mon, 6 Oct

17:50 - 22:15LHR-ABE

32h 25m2 stops

18:00 - 09:00ABE-LHR

34h 00m1 stop

£528Virgin Atlantic

Find Deal

Fri, 31 Oct - Fri, 7 Nov

06:15 - 22:41LHR-ABE

21h 26m2 stops

18:00 - 13:30ABE-LHR

14h 30m1 stop

£537Delta

Find Deal

Fri, 3 Oct - Mon, 6 Oct

12:30 - 22:15LHR-ABE

13h 45m1 stop

12:46 - 06:25ABE-LHR

12h 39m1 stop

£541Virgin Atlantic

Find Deal

Fri, 31 Oct - Fri, 7 Nov

16:50 - 12:04LHR-ABE

24h 14m2 stops

18:00 - 13:30ABE-LHR

14h 30m1 stop

£543Delta

Find Deal

Fri, 3 Oct - Mon, 6 Oct

20:25 - 17:31LHR-ABE

26h 06m2 stops

18:00 - 13:30ABE-LHR

14h 30m1 stop

£545Delta

Find Deal

Fri, 3 Oct - Mon, 6 Oct

08:55 - 17:19LHR-ABE

13h 24m1 stop

12:56 - 09:00ABE-LHR

15h 04m1 stop

£600Delta

Find Deal

Fri, 21 Nov - Sun, 23 Nov

08:30 - 16:53LHR-ABE

13h 23m1 stop

13:00 - 06:20ABE-LHR

12h 20m1 stop

£4,765United Airlines

Find Deal

Tue, 30 Sep - Tue, 7 Oct

09:30 - 21:54LHR-ABE

17h 24m2 stops

13:00 - 11:50ABE-LHR

17h 50m2 stops

£7,796Multiple Airlines

Find Deal

Tue, 30 Sep - Tue, 7 Oct

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

18h 21m

1 stop

ABE22:41Allentown-Bethlehem

6 Oct

ABE18:00Allentown-Bethlehem

14h 30m

1 stop

LHR13:30London Heathrow

£525

Find similar

Virgin Atlantic

3 Oct

LHR11:20London Heathrow

16h 21m

1 stop

ABE22:41Allentown-Bethlehem

6 Oct

ABE18:00Allentown-Bethlehem

14h 30m

1 stop

LHR13:30London Heathrow

£526

Find similar

Virgin Atlantic

31 Oct

LHR17:50London Heathrow

32h 25m

2 stops

ABE22:15Allentown-Bethlehem

7 Nov

ABE18:00Allentown-Bethlehem

34h 00m

1 stop

LHR09:00London Heathrow

£528

Find similar

Delta flights from London to Allentown

Our best Delta deals on London to Allentown flight tickets

Delta

3 Oct

LHR06:15London Heathrow

21h 26m

2 stops

ABE22:41Allentown-Bethlehem

6 Oct

ABE18:00Allentown-Bethlehem

14h 30m

1 stop

LHR13:30London Heathrow

£537

Find similar

Delta

3 Oct

LHR16:50London Heathrow

24h 14m

2 stops

ABE12:04Allentown-Bethlehem

6 Oct

ABE18:00Allentown-Bethlehem

14h 30m

1 stop

LHR13:30London Heathrow

£543

Find similar

Delta

3 Oct

LHR20:25London Heathrow

26h 06m

2 stops

ABE17:31Allentown-Bethlehem

6 Oct

ABE18:00Allentown-Bethlehem

14h 30m

1 stop

LHR13:30London Heathrow

£545

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

09:20-22:41

1 stop18h 21m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£525

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

11:20-22:41

1 stop16h 21m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£526

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 31/10

17:50-22:15

2 stops32h 25m

Allentown-Bethlehem

Fri 7/11

18:00-09:00

1 stop34h 00m

£528

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

06:15-22:41

2 stops21h 26m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£537

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 31/10

12:30-22:15

1 stop13h 45m

Allentown-Bethlehem

Fri 7/11

12:46-06:25

1 stop12h 39m

£541

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

16:50-12:04

2 stops24h 14m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£543

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

20:25-17:31

2 stops26h 06m

Allentown-Bethlehem

Mon 6/10

18:00-13:30

1 stop14h 30m

£545

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 21/11

08:55-17:19

1 stop13h 24m

Allentown-Bethlehem

Sun 23/11

12:56-09:00

1 stop15h 04m

£600

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 30/9

08:30-16:53

1 stop13h 23m

Allentown-Bethlehem

Tue 7/10

13:00-06:20

1 stop12h 20m

£4,765

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 30/9

09:30-21:54

2 stops17h 24m

Allentown-Bethlehem

Tue 7/10

13:00-11:50

2 stops17h 50m

£7,796

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

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

Prices

Airlines

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 £460. Flights from London to Allentown on a Sunday will generally be more expensive and average around £823. 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 £559 when looking at flights departing at midday. Flights in the morning are often more expensive, with an average ticket price of £600.

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

Direct flights	None

There are no direct flights from London to Allentown. There are no popular flight routes from London to Allentown.

Search flight deals

How far is London to Allentown-Bethlehem by plane?
Allentown-Bethlehem is 3523.4 mi away from London. Flights usually cover this in 13h 23m, 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?
The number of operators available for flights from London to Allentown-Bethlehem Airport is 1 as of September 2025.
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.

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
Finnair	PriceFrom £466	Free Cancellation	Rating 7.6 1,324 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.