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Flights to Allentown-Bethlehem

£386 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 18/2. 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.
United Airlines Logo
09:00 - 10:41
LHR
-
ABE
30h 41m2 stops
United Airlines Logo
16:57 - 11:15
ABE
-
LHR
13h 18m1 stop
£622United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
09:00 - 10:41
LHR
-
ABE
30h 41m2 stops
United Airlines Logo
11:30 - 08:25
ABE
-
LHR
15h 55m2 stops
£647United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
13:35 - 10:41
LHR
-
ABE
26h 06m1 stop
United Airlines Logo
11:30 - 05:55
ABE
-
LHR
13h 25m1 stop
£649United Airlines
Sat, 17 Jan - Sat, 24 Jan
United Airlines Logo
11:10 - 10:01
LHR
-
ABE
27h 51m2 stops
United Airlines Logo
10:36 - 11:15
ABE
-
LHR
19h 39m1 stop
£651United Airlines
Thu, 12 Feb - Mon, 16 Feb
United Airlines Logo
09:00 - 20:53
LHR
-
ABE
16h 53m2 stops
United Airlines Logo
10:36 - 06:40
ABE
-
LHR
15h 04m2 stops
£672United Airlines
Thu, 12 Feb - Mon, 16 Feb
United Airlines Logo
07:40 - 16:22
LHR
-
ABE
13h 42m1 stop
United Airlines Logo
16:57 - 11:15
ABE
-
LHR
13h 18m1 stop
£675United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
06:35 - 21:05
LHR
-
ABE
19h 30m2 stops
United Airlines Logo
16:57 - 15:50
ABE
-
LHR
17h 53m2 stops
£686United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
10:25 - 20:53
LHR
-
ABE
15h 28m1 stop
United Airlines Logo
10:36 - 07:55
ABE
-
LHR
16h 19m1 stop
£700United Airlines
Thu, 12 Feb - Mon, 16 Feb
Delta Logo
08:55 - 22:46
LHR
-
ABE
18h 51m2 stops
Delta Logo
12:50 - 06:25
ABE
-
LHR
12h 35m1 stop
£728Delta
Wed, 31 Dec - Wed, 7 Jan
Virgin Atlantic Logo
06:00 - 17:18
BRS
-
ABE
16h 18m2 stops
Virgin Atlantic Logo
17:59 - 16:55
ABE
-
BRS
17h 56m2 stops
£1,304Virgin Atlantic
Mon, 12 Jan - Mon, 19 Jan

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 21 December 2025.
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

Thu 22/1

09:00-10:41

2 stops30h 41m

Allentown-Bethlehem

Mon 26/1

16:57-11:15

1 stop13h 18m

£622

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 22/1

09:00-10:41

2 stops30h 41m

Allentown-Bethlehem

Mon 26/1

11:30-08:25

2 stops15h 55m

£647

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sat 17/1

13:35-10:41

1 stop26h 06m

Allentown-Bethlehem

Sat 24/1

11:30-05:55

1 stop13h 25m

£649

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 12/2

11:10-10:01

2 stops27h 51m

Allentown-Bethlehem

Mon 16/2

10:36-11:15

1 stop19h 39m

£651

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 12/2

09:00-20:53

2 stops16h 53m

Allentown-Bethlehem

Mon 16/2

10:36-06:40

2 stops15h 04m

£672

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 22/1

07:40-16:22

1 stop13h 42m

Allentown-Bethlehem

Mon 26/1

16:57-11:15

1 stop13h 18m

£675

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 22/1

06:35-21:05

2 stops19h 30m

Allentown-Bethlehem

Mon 26/1

16:57-15:50

2 stops17h 53m

£686

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 12/2

10:25-20:53

1 stop15h 28m

Allentown-Bethlehem

Mon 16/2

10:36-07:55

1 stop16h 19m

£700

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 31/12

08:55-22:46

2 stops18h 51m

Allentown-Bethlehem

Wed 7/1

12:50-06:25

1 stop12h 35m

£728

BristolAllentown

BRS - ABE

BRSABE

Bristol

Mon 12/1

06:00-17:18

2 stops16h 18m

Allentown-Bethlehem

Mon 19/1

17:59-16:55

2 stops17h 56m

£1,304

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Allentown flights insights and trends

Explore insights for your Allentown flight to craft the best travel plan

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

The cheapest day to depart from United Kingdom to Allentown is on a Monday when prices can be found for as low as £469. Flights from United Kingdom to Allentown on a Sunday will generally be more expensive and average around £838. 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 United Kingdom at midday is the least expensive time of day to depart. momondo users have found prices as low as £570 when looking at flights departing at midday. Flights in the morning are often more expensive, with an average ticket price of £612.

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

£386

Best Round-Trip Price

£622

Fastest flight time

15h 46m
The best one-way flight price to Allentown from United Kingdom in the last 72 hours is £386 (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 £622 (London Heathrow to Allentown-Bethlehem).
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The fastest flight to Allentown from United Kingdom takes 15h 46m (London Heathrow 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?

£81 is the cheapest deal found on momondo in the last two weeks for a flight to Allentown. This flight is from Boston and is 83% 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 December 2025, 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
Manchester to Allentown-Bethlehem Flightsfrom £989
London to Allentown-Bethlehem Flightsfrom £832
Edinburgh Turnhouse to Allentown-Bethlehem Flightsfrom £969
Bristol to Allentown-Bethlehem Flightsfrom £919
Birmingham to Allentown-Bethlehem Flightsfrom £1,013