What are the cheapest airlines flying from London to Allentown round-trip?

Our cheapest airline available from London to Allentown is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £507 on this airline. Additional options worth looking into are Delta and KLM, starting at £537 and £720 round-trip. These flights start at 26% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from London to Allentown one-way?

£1,322 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on WestJet and American Airlines, with prices starting from £1,842 and £2,017, respectively.

What is the cheapest day to fly from London to Allentown?

Travellers seeking maximum savings on their London to Allentown flight should consider departing on Wednesday at midday when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from London to Allentown?

Flights from London to Allentown are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Allentown.

What is the cheapest month to fly from London to Allentown?

April is one of the best times of the year to fly to Allentown from London. Prices for April average £685 per person but you can even find prices for as low as £502. The most expensive prices can be found in the month of August. Opting for a April flight can save you 81% on your journey compared to booking in August

What is the cheapest time of day to fly from LON to ABE?

It’s typically best to fly out from London to Allentown at midday. Doing so could potentially save you 7% on the flight price compared to flying in the morning, which is usually more expensive.

What airport do you fly into for flights to Allentown from London?

If you book a flight to Allentown from London, you will be flying to Allentown-Bethlehem, which is the city’s only airport. Allentown-Bethlehem (ABE) is located 3.9 mi from the center of Allentown. There are 0 flights from London to Allentown-Bethlehem per day from 1 airline.

Can I find deals for flights from London to Allentown that include hotel bookings?

Yes. In addition to deals on London to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Allentown?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Allentown.

Can I find deals for business class flights from London to Allentown?

Yes. Cheapflights offers flight deals from London to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£507+ Flights from London to Allentown

Cheap flight deals from London to Allentown

Round-trip from	£507
Popular in	August
Cheapest in	April
Average price	£776

Virgin Atlantic
14/5-20/5
4 total stops
36h 58m total
London to Allentown

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£118 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£44 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from London to Allentown

Cheapest flights from London to Allentown
Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Wed 14/509:00LHR - ABE

2 stops18h 55mVirgin Atlantic

Tue 20/513:12ABE - LHR

2 stops18h 03mVirgin Atlantic

Deal found 25/3£507

Wed 7/506:30LHR - ABE

2 stops21h 25mDelta

Wed 14/517:50ABE - LHR

2 stops21h 10mDelta

Deal found 24/3£537

Wed 7/513:05LHR - ABE

1 stop14h 50mKLM

Wed 14/517:50ABE - LHR

1 stop14h 40mKLM

Deal found 24/3£720

Mon 14/714:30LHR - ABE

2 stops14h 57mAmerican Airlines

Thu 7/806:27ABE - LHR

1 stop20h 13mAmerican Airlines

Deal found 25/3£766

Wed 7/506:00LHR - ABE

3 stops37h 24mMultiple Airlines

Wed 14/512:00ABE - LHR

3 stops42h 55mMultiple Airlines

Deal found 24/3£810

Mon 14/708:30LHR - ABE

1 stop13h 30mUnited Airlines

Tue 5/817:35ABE - LHR

1 stop13h 10mUnited Airlines

Deal found 25/3£975

Best flights from London to Allentown
Discover carefully curated flight deals from London to Allentown that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 March 2025.

Wed 14/509:00LHR - ABE

2 stops18h 55mVirgin Atlantic

Tue 20/513:12ABE - LHR

2 stops18h 03mVirgin Atlantic

Deal found 25/3£507

Wed 7/506:30LHR - ABE

2 stops21h 25mDelta

Wed 14/517:50ABE - LHR

2 stops21h 10mDelta

Deal found 24/3£537

Wed 7/513:05LHR - ABE

1 stop14h 50mKLM

Wed 14/517:50ABE - LHR

1 stop14h 40mKLM

Deal found 24/3£720

Mon 14/714:30LHR - ABE

2 stops14h 57mAmerican Airlines

Wed 6/812:05ABE - LHR

1 stop14h 35mAmerican Airlines

Deal found 25/3£766

Wed 7/506:00LHR - ABE

3 stops37h 24mMultiple Airlines

Wed 14/512:00ABE - LHR

3 stops42h 55mMultiple Airlines

Deal found 24/3£810

Mon 14/708:30LHR - ABE

1 stop13h 30mUnited Airlines

Tue 5/817:35ABE - LHR

1 stop13h 10mUnited Airlines

Deal found 25/3£975

Last-minute flights from London to Allentown
Discover last-minute flight deals from London to Allentown. Data last updated 25 March 2025 and is based on user searches.

Tue 25/310:25LHR - ABE

1 stop15h 09mUnited Airlines

Fri 28/317:38ABE - LHR

1 stop33h 42mUnited Airlines

Deal found 24/3£2,406

Sat 29/309:10LHR - ABE

2 stops17h 19mKLM

Sat 12/417:17ABE - LHR

2 stops34h 38mKLM

Deal found 24/3£916

Sun 30/308:30LHR - ABE

1 stop17h 55mMultiple Airlines

Mon 14/406:30ABE - LHR

1 stop20h 50mMultiple Airlines

Deal found 24/3£2,310

One-way flights from London to Allentown
Search for one-way flight options from London to Allentown. Find affordable one-way fares based on user searches. Data last updated 25 March 2025.

Thu 3/706:30LHR - ABE

2 stops15h 55mDelta

Deal found 24/3£1,322

Tue 8/414:10LHR - ABE

2 stops37h 08mWestJet

Deal found 25/3£1,842

Mon 7/420:10LHR - ABE

2 stops25h 45mAmerican Airlines

Deal found 25/3£2,017

Sun 30/308:00LHR - ABE

2 stops18h 25mUnited Airlines

Deal found 24/3£2,314

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 14/5

09:00-22:55

2 stops18h 55m

Allentown-Bethlehem

Tue 20/5

13:12-12:15

2 stops18h 03m

£507

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 7/5

06:30-22:55

2 stops21h 25m

Allentown-Bethlehem

Wed 14/5

17:50-20:00

2 stops21h 10m

£537

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 7/5

13:05-22:55

1 stop14h 50m

Allentown-Bethlehem

Wed 14/5

17:50-13:30

1 stop14h 40m

£720

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 14/7

14:30-00:27

2 stops14h 57m

Allentown-Bethlehem

Wed 6/8

12:05-07:40

1 stop14h 35m

£766

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 7/5

06:00-14:24

3 stops37h 24m

Allentown-Bethlehem

Wed 14/5

12:00-11:55

3 stops42h 55m

£810

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 14/7

08:30-17:00

1 stop13h 30m

Allentown-Bethlehem

Tue 5/8

17:35-11:45

1 stop13h 10m

£975

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Thu 3/7

06:30-17:25

2 stops15h 55m

£1,322

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 8/4

14:10-22:18

2 stops37h 08m

£1,842

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 7/4

20:10-16:55

2 stops25h 45m

£2,017

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 30/3

08:00-21:25

2 stops18h 25m

£2,314

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Best time to book a flight from London to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from London 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 from London to Allentown

Rainfall in Allentown 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

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

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,890 reviews

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,318 reviews

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,605 reviews

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.4

Good

634 reviews

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,890 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to Allentown from London?
If you book a flight to Allentown from London, you will be flying to Allentown-Bethlehem, which is the city’s only airport. Allentown-Bethlehem (ABE) is located 3.9 mi from the center of Allentown. There are 0 flights from London to Allentown-Bethlehem per day from 1 airline.
What are the cheapest airlines flying from London to Allentown round-trip?
Our cheapest airline available from London to Allentown is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £507 on this airline. Additional options worth looking into are Delta and KLM, starting at £537 and £720 round-trip. These flights start at 26% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from London to Allentown one-way?
£1,322 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on WestJet and American Airlines, with prices starting from £1,842 and £2,017, respectively.
Can I find deals for flights from London to Allentown that include hotel bookings?
Yes. In addition to deals on London to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Allentown?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Allentown.
Can I find deals for business class flights from London to Allentown?
Yes. Cheapflights offers flight deals from London to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Allentown

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Edinburgh to Dulles Intl flights

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Gatwick to Philadelphia flights

London City to Philadelphia flights

London City to Reagan-National flights

Manchester to Dulles Intl flights

Birmingham to John F Kennedy Intl flights

Birmingham to Newark flights

Edinburgh to Reagan-National flights

Luton to Dulles Intl flights

Gatwick to Pittsburgh flights

Birmingham to LaGuardia flights

London City to Pittsburgh flights

Manchester to Philadelphia flights

Manchester to Reagan-National flights

Stansted to Philadelphia flights

Southend to Newark flights

Leeds to John F Kennedy Intl flights

Luton to Philadelphia flights

Newcastle upon Tyne to John F Kennedy Intl flights

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Liverpool to John F Kennedy Intl flights

Top airline flying from London to Allentown

Airline	Cheapest	Average	Flexibility	On-time
Finnair	Cheapest£478	Average£587	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

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How does Cheapflights help users find flights from London to Allentown?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Allentown. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Allentown?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Allentown from London.

Can Cheapflights find flights from London to Allentown with no change fees?

Need flexible booking options for your flight to Allentown from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Allentown become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Allentown from London today and book when prices fit your budget.

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Cheap flights from London to Allentown from £507

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Allentown

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from London to Allentown

Cheapest flights from London to AllentownExplore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Cheapflights Fare Finder

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

Best time to book a flight from London to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Allentown

Rainfall in Allentown by month

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

Temperature in Allentown by month

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

Reviews of airlines servicing Allentown

Related info for your journey

Find useful and relevant information for your journey from London to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Allentown from London?

What are the cheapest airlines flying from London to Allentown round-trip?

What are the cheapest airlines to fly from London to Allentown one-way?

Can I find deals for flights from London to Allentown that include hotel bookings?

How can I find direct flights from London to Allentown?

Can I find deals for business class flights from London to Allentown?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Allentown

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to Allentown

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Allentown?

Why should you use Cheapflights to find cheap flight tickets from London to Allentown?

Can Cheapflights find flights from London to Allentown with no change fees?

Can Cheapflights notify me if prices for flights from London to Allentown become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from London to Allentown
Explore the most affordable flight options available from London to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.