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ABE - LHR

$620 Find cheap flights from Allentown to London Heathrow Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to London departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
qui 7/11
qui 7/18

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to London, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Cheap flight deals from Allentown to London (ABE-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:30 pm - 11:45 amABE-LHR
13h 15m1 stop
6:50 am - 4:48 pmLHR-ABE
14h 58m2 stops
$620United Airlines
Find Deal
ter, out 15 - ter, out 22
5:30 pm - 11:45 amABE-LHR
13h 15m1 stop
8:30 am - 4:48 pmLHR-ABE
13h 18m1 stop
$628United Airlines
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ter, out 15 - ter, out 22
5:40 pm - 11:45 amABE-LHR
13h 05m1 stop
8:30 am - 4:58 pmLHR-ABE
13h 28m1 stop
$651United Airlines
Find Deal
qua, ago 21 - qua, ago 28
12:32 pm - 7:50 amABE-LHR
14h 18m1 stop
1:55 pm - 11:09 pmLHR-ABE
14h 14m1 stop
$839Delta
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ter, jul 30 - qui, ago 8
12:08 pm - 6:55 amABE-LHR
13h 47m2 stops
9:15 am - 10:28 pmLHR-ABE
18h 13m1 stop
$944American Airlines
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qua, jul 17 - qui, jul 25
5:40 pm - 5:05 pmABE-LHR
18h 25m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$1,082
Find Deal
qua, ago 21 - qua, ago 28
12:22 pm - 7:40 amABE-LHR
14h 18m1 stop
9:15 am - 7:21 pmLHR-ABE
15h 06m1 stop
$1,112American Airlines
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ter, jun 25 - seg, jul 1
6:05 am - 6:45 amABE-LHR
19h 40m2 stops
12:10 pm - 11:09 pmLHR-ABE
15h 59m2 stops
$1,118Delta
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qua, jul 17 - qui, jul 25
5:51 pm - 11:10 amABE-LHR
12h 19m1 stop
12:45 pm - 11:09 pmLHR-ABE
15h 24m1 stop
$1,153Virgin Atlantic
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qui, jul 25 - ter, jul 30
10:43 am - 6:55 pmABE-LHR
27h 12m3 stops
6:45 am - 5:11 pmLHR-ABE
39h 26m3 stops
$1,499
Find Deal
qui, jul 25 - ter, jul 30

Good to know

Cheapest flight

$620
Flight from Allentown to London Heathrow Airport

When to book flights from Allentown to London

Are your dates flexible? Find out the best times to travel from Allentown to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Allentown to London Heathrow Airport flights

  • What is the cheapest flight from Allentown to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Allentown to London Heathrow Airport was $822 for a one-way ticket and $620 for a round-trip.

  • Do I need a passport to fly between Allentown and London Heathrow Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Allentown and on arrival in London Heathrow Airport.

  • Which airports will I be using when flying from Allentown to London Heathrow Airport?

    Allentown and London Heathrow Airport are both served by 1 main airport. You will leave Allentown from Allentown-Bethlehem and will be arriving at London Heathrow.

  • Which aircraft models fly most regularly from Allentown to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Allentown to London Heathrow Airport?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Allentown and London Heathrow Airport, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Allentown to London, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Allentown to London are United Airlines and American Airlines. With an average price for the route of $922 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,075 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Allentown to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Allentown to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Allentown to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Allentown is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Allentown to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Allentown with another airline. Booking your flights between Allentown and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Allentown to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Allentown to London

 
See real verified KAYAK customer reviews for airlines flying from Allentown to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Allentown to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10629 reviews
7.2Comfort
6.7Food
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

Lady was a bit rude during boarding and I was being nice to her.

8.0 ExcellentMital, Jun 2024IAH - PUJ
Read more about United Airlines reviews

Lady was a bit rude during boarding and I was being nice to her.

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Missed this flight due to the first AA flight delay

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Book cheap flights from Allentown to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Allentown to London found on KAYAK in the last 72 hours.
8/1qui
1 stopDelta
12h 19mABE-LHR
$822
6/16dom
1 stopDelta
12h 21mABE-LHR
$1,357

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Last minute flights from Allentown to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Allentown to London that are departing in the next 10 days.
6/14sex
multi-stopUnited Airlines
13h 11mABE-LHR
6/19qua
multi-stopUnited Airlines
13h 32mLHR-ABE
$1,315
6/14sex
multi-stopUnited Airlines
13h 11mABE-LHR
6/19qua
multi-stopUnited Airlines
17h 07mLHR-ABE
$1,408
6/14sex
multi-stop
19h 06mABE-LHR
6/19qua
multi-stop
20h 37mLHR-ABE
$2,106
6/16dom
multi-stopUnited Airlines
18h 15mABE-LHR
6/19qua
multi-stopUnited Airlines
17h 57mLHR-ABE
$2,717
6/16dom
multi-stopUnited Airlines
18h 15mABE-LHR
6/19qua
multi-stopUnited Airlines
18h 07mLHR-ABE
$2,733
6/16dom
multi-stop
18h 31mABE-LHR
6/19qua
multi-stop
20h 37mLHR-ABE
$2,737
6/16dom
multi-stopDelta
20h 10mABE-LHR
6/19qua
multi-stopDelta
19h 14mLHR-ABE
$2,741
6/16dom
multi-stopKLM
19h 48mABE-LHR
6/19qua
multi-stopKLM
16h 39mLHR-ABE
$2,743

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Allentown - London Heathrow Airport Flights

Departure:

Allentown (ABE)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Allentown

Cabin classes: