Latest deals
Insights
When to book
FAQs
Price Alerts
Flights to Allentown-Bethlehem

£421 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 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from the United Kingdom to Allentown

Cheap return flights

Enter your travel dates to find the best prices.
Finnair Logo
14:25 - 22:17
LHR
-
ABE
12h 52m
1 stop
Finnair Logo
06:00 - 10:15
ABE
-
LHR
23h 15m
2 stops
£639Finnair
Sun, 13 Sep - Tue, 6 Oct
Finnair Logo
11:00 - 22:12
LHR
-
ABE
16h 12m
1 stop
Finnair Logo
06:10 - 06:15
ABE
-
LHR
19h 05m
2 stops
£642Finnair
Mon, 7 Dec - Fri, 11 Dec
Multiple Airlines Logo
18:05 - 23:22
LHR
-
ABE
34h 17m
2 stops
Multiple Airlines Logo
17:14 - 09:25
ABE
-
LHR
11h 11m
1 stop
£659Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
Multiple Airlines Logo
13:10 - 22:18
LHR
-
ABE
14h 08m
1 stop
Multiple Airlines Logo
06:00 - 06:50
ABE
-
LHR
19h 50m
1 stop
£687Multiple Airlines
Wed, 30 Sep - Wed, 7 Oct
Virgin Atlantic Logo
15:50 - 17:12
LHR
-
ABE
30h 22m
1 stop
Virgin Atlantic Logo
13:00 - 06:25
ABE
-
LHR
12h 25m
1 stop
£699Virgin Atlantic
Mon, 7 Dec - Fri, 11 Dec
Multiple Airlines Logo
11:10 - 22:12
LHR
-
ABE
16h 02m
1 stop
Multiple Airlines Logo
06:00 - 11:35
ABE
-
LHR
24h 35m
1 stop
£700Multiple Airlines
Tue, 13 Oct - Tue, 3 Nov
Finnair Logo
12:15 - 22:17
LHR
-
ABE
15h 02m
1 stop
Finnair Logo
18:20 - 12:15
ABE
-
LHR
12h 55m
1 stop
£708Finnair
Sun, 13 Sep - Tue, 6 Oct
United Airlines Logo
08:40 - 09:35
LHR
-
ABE
29h 55m
2 stops
United Airlines Logo
06:20 - 06:55
ABE
-
LHR
19h 35m
2 stops
£722United Airlines
Wed, 30 Sep - Wed, 7 Oct
United Airlines Logo
07:30 - 17:08
LHR
-
ABE
38h 38m
2 stops
United Airlines Logo
17:46 - 08:30
ABE
-
LHR
33h 44m
1 stop
£733United Airlines
Wed, 30 Sep - Sun, 4 Oct
Virgin Atlantic Logo
12:10 - 17:15
MAN
-
ABE
34h 05m
2 stops
Virgin Atlantic Logo
18:00 - 08:15
ABE
-
MAN
57h 15m
2 stops
£799Virgin Atlantic
Tue, 6 Oct - Fri, 9 Oct

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 July 2026.
Use the filters below to find and compare flights to Allentown that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 13/9

14:25-22:17

1 stop12h 52m

Allentown-Bethlehem

Tue 6/10

06:00-10:15

2 stops23h 15m

£639

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 7/12

11:00-22:12

1 stop16h 12m

Allentown-Bethlehem

Fri 11/12

06:10-06:15

2 stops19h 05m

£642

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

18:05-23:22

2 stops34h 17m

Allentown-Bethlehem

Wed 7/10

17:14-09:25

1 stop11h 11m

£659

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

13:10-22:18

1 stop14h 08m

Allentown-Bethlehem

Wed 7/10

06:00-06:50

1 stop19h 50m

£687

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 7/12

15:50-17:12

1 stop30h 22m

Allentown-Bethlehem

Fri 11/12

13:00-06:25

1 stop12h 25m

£699

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 13/10

11:10-22:12

1 stop16h 02m

Allentown-Bethlehem

Tue 3/11

06:00-11:35

1 stop24h 35m

£700
Fastest return journey

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 13/9

12:15-22:17

1 stop15h 02m

Allentown-Bethlehem

Tue 6/10

18:20-12:15

1 stop12h 55m

£708

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

08:40-09:35

2 stops29h 55m

Allentown-Bethlehem

Wed 7/10

06:20-06:55

2 stops19h 35m

£722

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 30/9

07:30-17:08

2 stops38h 38m

Allentown-Bethlehem

Sun 4/10

17:46-08:30

1 stop33h 44m

£733

ManchesterAllentown

MAN - ABE

MANABE

Manchester

Tue 6/10

12:10-17:15

2 stops34h 05m

Allentown-Bethlehem

Fri 9/10

18:00-08:15

2 stops57h 15m

£799

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Allentown from

Allentown flights insights and trends

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

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 45m and 11h 30m, 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

£421

Best Round-Trip Price

£639

Fastest flight time

13h 22m
The best one-way flight price to Allentown from United Kingdom in the last 5 days is £421 (London Heathrow to Allentown-Bethlehem).
Search Deals
The best return flight price to Allentown from United Kingdom in the last 5 days is £639 (London Heathrow to Allentown-Bethlehem).
Search Deals
The fastest flight to Allentown from United Kingdom takes 13h 22m (Edinburgh Turnhouse to Allentown-Bethlehem).
Search Deals

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 £284 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?

£126 is the cheapest deal found on momondo in the last two weeks for a flight to Allentown. This flight is from Orlando and is 74% 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 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.

An easier way to manage your Allentown-Bethlehem trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 15/8
Sat 22/8
By creating a price alert you accept our terms of use and privacy policy.

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 £860
Birmingham to Allentown-Bethlehem Flightsfrom £1,236
Edinburgh Turnhouse to Allentown-Bethlehem Flightsfrom £1,187
Bristol to Allentown-Bethlehem Flightsfrom £1,763
Manchester to Allentown-Bethlehem Flightsfrom £1,075