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Flights to Allentown-Bethlehem

£454 Cheap flights to Allentown

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Allentown departing on 8/5. 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 the United Kingdom to Allentown

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
06:30 - 17:12
LHR
-
ABE
15h 42m
2 stops
Delta Logo
06:28 - 06:55
ABE
-
LHR
19h 27m
2 stops
£555Delta
Sat, 28 Feb - Sat, 7 Mar
Delta Logo
10:45 - 22:49
LHR
-
ABE
17h 04m
1 stop
Delta Logo
06:28 - 06:20
ABE
-
LHR
18h 52m
2 stops
£568Delta
Sat, 28 Feb - Sat, 7 Mar
Delta Logo
11:45 - 12:06
LHR
-
ABE
29h 21m
2 stops
Delta Logo
17:59 - 06:30
ABE
-
LHR
31h 31m
2 stops
£579Delta
Tue, 31 Mar - Sat, 4 Apr
United Airlines Logo
12:05 - 10:41
LHR
-
ABE
51h 36m
2 stops
United Airlines Logo
11:30 - 05:55
ABE
-
LHR
13h 25m
1 stop
£607United Airlines
Thu, 5 Feb - Mon, 9 Feb
Delta Logo
13:05 - 22:59
LHR
-
ABE
14h 54m
1 stop
Delta Logo
17:59 - 06:45
ABE
-
LHR
31h 46m
1 stop
£617Delta
Tue, 31 Mar - Sat, 4 Apr
United Airlines Logo
16:40 - 10:41
LHR
-
ABE
47h 01m
2 stops
United Airlines Logo
11:30 - 11:15
ABE
-
LHR
18h 45m
1 stop
£619United Airlines
Thu, 5 Feb - Mon, 9 Feb
Delta Logo
17:35 - 17:17
LHR
-
ABE
28h 42m
2 stops
Delta Logo
17:59 - 06:45
ABE
-
LHR
31h 46m
1 stop
£652Delta
Mon, 30 Mar - Sat, 4 Apr
United Airlines Logo
07:40 - 16:22
LHR
-
ABE
13h 42m
1 stop
United Airlines Logo
11:30 - 05:55
ABE
-
LHR
13h 25m
1 stop
£660United Airlines
Thu, 5 Feb - Mon, 9 Feb
United Airlines Logo
07:40 - 16:22
LHR
-
ABE
13h 42m
1 stop
United Airlines Logo
11:30 - 07:55
ABE
-
LHR
15h 25m
1 stop
£661United Airlines
Thu, 5 Feb - Mon, 9 Feb
Delta Logo
08:55 - 22:49
LHR
-
ABE
18h 54m
1 stop
Delta Logo
17:58 - 11:40
ABE
-
LHR
12h 42m
1 stop
£696Delta
Sat, 28 Feb - Sat, 7 Mar

momondo Fare Finder

 
Locate flights to Allentown-Bethlehem that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 16 January 2026.
Use the filters below to find and compare flights to Allentown that are best for you.

Fly from

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 28/2

06:30-17:12

2 stops15h 42m

Allentown-Bethlehem

Sat 7/3

06:28-06:55

2 stops19h 27m

£555

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 28/2

10:45-22:49

1 stop17h 04m

Allentown-Bethlehem

Sat 7/3

06:28-06:20

2 stops18h 52m

£568

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 31/3

11:45-12:06

2 stops29h 21m

Allentown-Bethlehem

Sat 4/4

17:59-06:30

2 stops31h 31m

£579

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/2

12:05-10:41

2 stops51h 36m

Allentown-Bethlehem

Mon 9/2

11:30-05:55

1 stop13h 25m

£607

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 31/3

13:05-22:59

1 stop14h 54m

Allentown-Bethlehem

Sat 4/4

17:59-06:45

1 stop31h 46m

£617

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/2

16:40-10:41

2 stops47h 01m

Allentown-Bethlehem

Mon 9/2

11:30-11:15

1 stop18h 45m

£619

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 30/3

17:35-17:17

2 stops28h 42m

Allentown-Bethlehem

Sat 4/4

17:59-06:45

1 stop31h 46m

£652

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/2

07:40-16:22

1 stop13h 42m

Allentown-Bethlehem

Mon 9/2

11:30-05:55

1 stop13h 25m

£660

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 5/2

07:40-16:22

1 stop13h 42m

Allentown-Bethlehem

Mon 9/2

11:30-07:55

1 stop15h 25m

£661

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 28/2

08:55-22:49

1 stop18h 54m

Allentown-Bethlehem

Sat 7/3

17:58-11:40

1 stop12h 42m

£696

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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Allentown flights insights and trends

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How long does it take to fly to Allentown?

If you’re flying from a popular airport in United Kingdom, such as London Heathrow or Manchester, and flying into Allentown, then you can expect flight times to average 7h 50m and 11h, respectively.

Cheapest flights to Allentown-Bethlehem

Find the cheapest flights to Allentown-Bethlehem from your nearest city or airport

Cheap Allentown flight deals and tips

Summary info about Allentown flight prices, duration and airlines

Best One-Way Price

£454

Best Round-Trip Price

£555

Fastest flight time

17h 08m
The best one-way flight price to Allentown from United Kingdom in the last 72 hours is £454 (London Heathrow to Allentown-Bethlehem).
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The best round-trip flight price to Allentown from United Kingdom in the last 72 hours is £555 (London Heathrow to Allentown-Bethlehem).
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The fastest flight to Allentown from United Kingdom takes 17h 08m (Birmingham to Allentown-Bethlehem).
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Frequently asked questions about flying to Allentown

Is there an alternative airport near Allentown?

Allentown-Bethlehem Airport, Trenton-Mercer Airport, Philadelphia Airport, Wilkes-Barre Scranton Airport or Lancaster Airport can be an alternative airport used for travel to Allentown.

Is there a cheaper alternative to flying into Allentown?

Wilkes-Barre Scranton Airport has an average price of £258 per person and is typically the cheapest airport to fly into when visiting Allentown. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Allentown?

£121 is the cheapest deal found on momondo in the last two weeks for a flight to Allentown. This flight is from Miami and is 76% cheaper than most flights to Allentown. To find the cheapest price to Allentown from your area, use momondo’s Airport-to-Airport Pricing Tool.

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

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

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

As of January 2026, there is 1 operator available to choose from for flights to Allentown-Bethlehem Airport.

How old do you have to be to fly 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 to Allentown-Bethlehem Airport.

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

The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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

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

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

How can momondo help me find flights 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 filter your options to help you make an informed choice when booking flights to Allentown.

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

Of course. momondo tracks the price of Allentown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Allentown

Popular Flights to Allentown

Popular routes according to searches in the past day on momondo
London to Allentown-Bethlehem Flightsfrom £812
Manchester to Allentown-Bethlehem Flightsfrom £988
Edinburgh Turnhouse to Allentown-Bethlehem Flightsfrom £2,050
Birmingham to Allentown-Bethlehem Flightsfrom £1,032
Bristol to Allentown-Bethlehem Flightsfrom £1,745