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Flights to Allentown-Bethlehem

£455 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 9/11. 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

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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 - 22:16LHR  London Heathrow-ABE Allentown-Bethlehem
20h 46m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
06:25 - 06:20ABE  Allentown-Bethlehem-LHR London Heathrow
18h 55m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl
£702Delta
Tue, 22 Sep - Tue, 29 Sep
American Airlines Logo
14:25 - 22:18LHR  London Heathrow-ABE Allentown-Bethlehem
12h 53m1 stop Chicago O'Hare Intl
American Airlines Logo
14:25 - 06:55ABE  Allentown-Bethlehem-LHR London Heathrow
11h 30m1 stop Charlotte Douglas
£715American Airlines
Mon, 21 Sep - Mon, 28 Sep
American Airlines Logo
09:15 - 16:27LHR  London Heathrow-ABE Allentown-Bethlehem
12h 12m1 stop Charlotte Douglas
American Airlines Logo
17:10 - 11:15ABE  Allentown-Bethlehem-LHR London Heathrow
13h 05m1 stop Chicago O'Hare Intl
£721American Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
07:30 - 21:00LHR  London Heathrow-ABE Allentown-Bethlehem
18h 30m2 stops Frankfurt am Main Chicago O'Hare Intl
United Airlines Logo
18:01 - 16:25ABE  Allentown-Bethlehem-LHR London Heathrow
41h 24m2 stops Chicago O'Hare Intl Zurich
£736United Airlines
Wed, 16 Sep - Sun, 20 Sep
United Airlines Logo
06:50 - 16:56LHR  London Heathrow-ABE Allentown-Bethlehem
15h 06m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
United Airlines Logo
17:43 - 11:55ABE  Allentown-Bethlehem-LHR London Heathrow
13h 12m1 stop Chicago O'Hare Intl
£739United Airlines
Wed, 23 Sep - Wed, 30 Sep
Multiple Airlines Logo
09:15 - 16:27LHR  London Heathrow-ABE Allentown-Bethlehem
12h 12m1 stop Charlotte Douglas
Multiple Airlines Logo
14:25 - 21:40ABE  Allentown-Bethlehem-LHR London Heathrow
26h 15m2 stops Charlotte Douglas New York John F Kennedy Intl
£740Multiple Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
06:55 - 09:39LHR  London Heathrow-ABE Allentown-Bethlehem
31h 44m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl
United Airlines Logo
17:36 - 20:40ABE  Allentown-Bethlehem-LHR London Heathrow
22h 04m2 stops Chicago O'Hare Intl Newark
£751United Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
08:45 - 09:57LHR  London Heathrow-ABE Allentown-Bethlehem
30h 12m2 stops Zurich Chicago O'Hare Intl
United Airlines Logo
17:36 - 09:00ABE  Allentown-Bethlehem-LHR London Heathrow
34h 24m1 stop Chicago O'Hare Intl
£776United Airlines
Thu, 3 Sep - Mon, 7 Sep
United Airlines Logo
08:45 - 09:57LHR  London Heathrow-ABE Allentown-Bethlehem
30h 12m2 stops Zurich Chicago O'Hare Intl
United Airlines Logo
17:36 - 09:00ABE  Allentown-Bethlehem-LHR London Heathrow
34h 24m1 stop Chicago O'Hare Intl
£778United Airlines
Thu, 3 Sep - Mon, 7 Sep
United Airlines Logo
08:45 - 09:57LHR  London Heathrow-ABE Allentown-Bethlehem
30h 12m2 stops Zurich Chicago O'Hare Intl
United Airlines Logo
10:32 - 06:30ABE  Allentown-Bethlehem-LHR London Heathrow
38h 58m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
£779United Airlines
Thu, 3 Sep - Mon, 7 Sep

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 11 August 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 London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Tue 22/9

06:30-22:16

2 stops20h 46m

Allentown-Bethlehem

Tue 29/9

06:25-06:20

2 stops18h 55m

£702
Fastest return journey

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 21/9

14:25-22:18

1 stop12h 53m

Allentown-Bethlehem

Mon 28/9

14:25-06:55

1 stop11h 30m

£715

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 7/9

09:15-16:27

1 stop12h 12m

Allentown-Bethlehem

Mon 14/9

17:10-11:15

1 stop13h 05m

£721

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Wed 16/9

07:30-21:00

2 stops18h 30m

Allentown-Bethlehem

Sun 20/9

18:01-16:25

2 stops41h 24m

£736

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Wed 23/9

06:50-16:56

2 stops15h 06m

Allentown-Bethlehem

Wed 30/9

17:43-11:55

1 stop13h 12m

£739

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 7/9

09:15-16:27

1 stop12h 12m

Allentown-Bethlehem

Mon 14/9

14:25-21:40

2 stops26h 15m

£740

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Mon 7/9

06:55-09:39

2 stops31h 44m

Allentown-Bethlehem

Mon 14/9

17:36-20:40

2 stops22h 04m

£751

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Thu 3/9

08:45-09:57

2 stops30h 12m

Allentown-Bethlehem

Mon 7/9

17:36-09:00

1 stop34h 24m

£776

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Thu 3/9

08:45-09:57

2 stops30h 12m

Allentown-Bethlehem

Mon 7/9

17:36-09:00

1 stop34h 24m

£778

LondonAllentown

LHR London Heathrow - ABE Allentown-Bethlehem

LHRABE

London Heathrow

Thu 3/9

08:45-09:57

2 stops30h 12m

Allentown-Bethlehem

Mon 7/9

10:32-06:30

2 stops38h 58m

£779

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

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 13h 10m, 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

£455

Best Round-Trip Price

£702

Fastest flight time

13h 23m
The best one-way flight price to Allentown from United Kingdom in the last 5 days is £455 (London Heathrow to Allentown-Bethlehem).
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The best return flight price to Allentown from United Kingdom in the last 5 days is £702 (London Heathrow to Allentown-Bethlehem).
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The fastest flight to Allentown from United Kingdom takes 13h 23m (Edinburgh Turnhouse 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 £283 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?

£163 is the cheapest deal found on momondo in the last two weeks for a flight to Allentown. This flight is from Toronto and is 64% 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.

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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 £1,205
London to Allentown-Bethlehem Flightsfrom £994
Edinburgh Turnhouse to Allentown-Bethlehem Flightsfrom £1,269
Birmingham to Allentown-Bethlehem Flightsfrom £1,213
Bristol to Allentown-Bethlehem Flightsfrom £1,178