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£605+ Cheap flights to Allentown

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
— ABE
1 Jul — 8 Jul1
1 adult

Flights to Allentown in 2025

Find the latest flights to Allentown in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 June 2025.

Return from

£605

One-way from

£624

Popular in

August

Cheapest in

April

Average price

£499
Finnair
  • Finnair
  • 28/8-1/9
  • 4 total stops
  • 56h 32m total
  • London to Allentown
WestJet
  • WestJet
  • 6/11
  • 2 total stops
  • 26h 18m total
  • London to Allentown
Highest demand for flights based on searches. 20% potential increase in price (£118 potential increase over avg. return price).
Cheapest flight prices on average. 10% potential price decrease (£45 potential savings vs. average return price).
Average for return flights in June 2025

Find flight deals to Allentown

Cheapest flights to Allentown
Explore the most affordable flight options available to Allentown. Find the lowest fares based on data from user searches, with prices last updated on 26 June 2025.

Thu 28/812:30LHR - ABE
1 stop26h 35mFinnair
Mon 1/920:07ABE - LHR
1 stop30h 33mFinnair
Deal found 26/6£605
Sun 10/817:25LHR - ABE
1 stop29h 09mVirgin Atlantic
Sun 17/806:00ABE - LHR
1 stop19h 45mVirgin Atlantic
Deal found 26/6£756
Sun 10/809:15LHR - ABE
1 stop14h 50mAmerican Airlines
Sun 17/813:56ABE - LHR
1 stop14h 09mAmerican Airlines
Deal found 26/6£814
Sun 10/809:40LHR - ABE
2 stops17h 50mKLM
Sun 17/806:00ABE - LHR
1 stop19h 45mKLM
Deal found 26/6£817
Thu 28/822:05LHR - ABE
3 stops29h 57mMultiple Airlines
Mon 1/907:00ABE - LHR
3 stops32h 20mMultiple Airlines
Deal found 26/6£844
Sun 10/820:10LHR - ABE
2 stops21h 06mDelta
Sun 17/812:56ABE - LHR
2 stops14h 04mDelta
Deal found 26/6£998
Tue 19/808:30LHR - ABE
1 stop13h 23mUnited Airlines
Tue 2/917:28ABE - LHR
1 stop13h 17mUnited Airlines
Deal found 26/6£1,162

Cheapflights Fare Finder

Locate flights to Allentown that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 June 2025.
Use the filters below to find and compare flights to Allentown that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 28/8

12:30-10:05

1 stop26h 35m

Allentown-Bethlehem

Mon 1/9

20:07-07:40

1 stop30h 33m

£605

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 10/8

17:25-17:34

1 stop29h 09m

Allentown-Bethlehem

Sun 17/8

06:00-06:45

1 stop19h 45m

£756

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 10/8

09:15-19:05

1 stop14h 50m

Allentown-Bethlehem

Sun 17/8

13:56-09:05

1 stop14h 09m

£814

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 10/8

09:40-22:30

2 stops17h 50m

Allentown-Bethlehem

Sun 17/8

06:00-06:45

1 stop19h 45m

£817

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 28/8

22:05-23:02

3 stops29h 57m

Allentown-Bethlehem

Mon 1/9

07:00-20:20

3 stops32h 20m

£844

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 10/8

20:10-12:16

2 stops21h 06m

Allentown-Bethlehem

Sun 17/8

12:56-08:00

2 stops14h 04m

£998

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 19/8

08:30-16:53

1 stop13h 23m

Allentown-Bethlehem

Tue 2/9

17:28-11:45

1 stop13h 17m

£1,162

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 6/11

14:50-12:08

2 stops26h 18m

£624

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 19/11

06:30-17:14

2 stops15h 44m

£690

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 6/11

12:30-23:23

1 stop15h 53m

£741

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 12 results
1
2

Best time to book a flight to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Allentown

How long is the flight to Allentown?

On average, a flight from London to Allentown takes 14 hours 25 minutes. Flights to Allentown from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Allentown?

The cheapest airline flying from London to Allentown is Finnair.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 69.0 - 127.0 inches per month. July is typically the wettest month, when rainfall can reach 127.0 mm. February is typically the driest time to visit Allentown when rainfall is around 69.0 mm.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -2.0 C).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated 26 June 2025.
Get a feel of what it's like to fly with Delta, KLM, andFinnair to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

FAQs about flying to Allentown

Getting around Allentown

Daily regional bus and coach services are available to New York City, Philadelphia and Atlantic City. A great way to discover the city environs is by bike and making use of the fabulous parks and gardens system, canal tow paths and extensive trails. Exploring on foot the main central area is a good option or try a walking tour of the historic districts in Allentown to soak up the ambience of this characterful American city.

Getting from the Airport to the City

Lehigh Valley International Airport (ABE) is easily accessible within 15 minutes from most parts of Allentown. There is a convenient local bus service provided by LANTA and several taxi and limo companies operating in the city.

  • What airport do you fly into for flights to Allentown?

    Most people fly into Allentown-Bethlehem (ABE) if they book a flight to Allentown. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • Can I find cheaper flights to Allentown if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Allentown on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Allentown?

    Based on reviews from Cheapflights users, Finnair is rated the highest out of the airlines that fly to Allentown.

  • Where does the fastest flight to Allentown depart from?

    For those looking to save time traveling to Allentown, London offers the quickest one-way flight (14 hours 25 minutes).

  • Does Allentown-Bethlehem have car hire?

    Yes. Those touching down at Allentown-Bethlehem can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Allentown-Bethlehem?

    Yes. Allentown-Bethlehem has hotels nearby for those requiring accommodations. Days Hotel by Wyndham Allentown Airport / Lehigh Valley is the closest property to Allentown-Bethlehem (0.0 mi away from Allentown-Bethlehem).

See more FAQs

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Yes, we can. To see specific flights to Allentown with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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