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ABE - LHR

$538 Find cheap flights from Allentown to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to London departing on 7/13. 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
Thu 6/13
Thu 6/20

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 42,566,405 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Allentown to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Allentown to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Allentown to London.

Recent one-way flight deals from Allentown to London

Only flying one-way? Below are some of the best one-way flight deals from Allentown to London found on KAYAK recently.

Recent last minute flight deals from Allentown to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Allentown to London.

Recent direct flight deals from Allentown to London

The latest deals for direct flights from Allentown to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Allentown to London

Find recent round-trip train or bus tickets from Allentown to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
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6:40 am - 9:00 amABE-LHR
21h 20m1 stop
2:05 pm - 4:58 pmLHR-ABE
31h 53m2 stops
$698United Airlines
Find Deal
Sun, Aug 11 - Tue, Sep 10
6:00 pm - 11:10 amABE-LHR
12h 10m1 stop
11:30 am - 11:26 pmLHR-ABE
16h 56m2 stops
$708Delta
Find Deal
Mon, Aug 12 - Wed, Sep 11
6:00 pm - 11:10 amABE-LHR
12h 10m1 stop
1:55 pm - 11:26 pmLHR-ABE
14h 31m1 stop
$714Delta
Find Deal
Sun, Aug 11 - Wed, Sep 11
6:40 am - 5:55 amABE-LHR
18h 15m1 stop
12:05 pm - 4:58 pmLHR-ABE
33h 53m2 stops
$748United Airlines
Find Deal
Thu, Aug 15 - Thu, Sep 5
4:48 pm - 10:50 amABE-LHR
13h 02m2 stops
10:05 am - 7:21 pmLHR-ABE
14h 16m2 stops
$1,017American Airlines
Find Deal
Sun, Jun 2 - Sun, Jun 9
7:51 pm - 12:10 pmABE-LHR
11h 19m1 stop
9:15 am - 10:28 pmLHR-ABE
18h 13m1 stop
$1,053American Airlines
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Wed, Jul 3 - Wed, Jul 10
6:00 pm - 12:05 pmABE-LHR
37h 05m2 stops
2:10 pm - 5:13 pmLHR-ABE
32h 03m2 stops
$1,930WestJet
Find Deal
Sun, Aug 11 - Tue, Sep 10
5:34 pm - 3:45 pmABE-LHR
17h 11m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$2,044
Find Deal
Wed, Jun 5 - Wed, Jun 12
5:34 pm - 3:45 pmABE-LHR
17h 11m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$2,094
Find Deal
Thu, Jun 6 - Wed, Jun 12
2:00 pm - 11:10 amABE-LHR
16h 10m1 stop
1:55 pm - 11:17 pmLHR-ABE
14h 22m1 stop
$2,564KLM
Find Deal
Sun, May 26 - Thu, May 30
5:51 pm - 11:10 amABE-LHR
12h 19m1 stop
$538Delta
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Sat, Jul 13
12:24 pm - 6:45 amABE-LHR
13h 21m2 stops
$824Delta
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Tue, May 21
6:40 am - 11:10 amABE-LHR
23h 30m2 stops
$873United Airlines
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Fri, May 31
12:24 pm - 6:45 amABE-LHR
13h 21m2 stops
$1,314Delta
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Mon, May 20
6:40 am - 9:00 amABE-LHR
21h 20m1 stop
$1,382United Airlines
Find Deal
Fri, May 31
5:51 pm - 2:55 pmABE-LHR
40h 04m3 stops
$2,159
Find Deal
Mon, Jul 8
6:35 am - 5:55 amABE-LHR
18h 20m1 stop
8:30 am - 9:37 pmLHR-ABE
18h 07m1 stop
$719United Airlines
Find Deal
Sun, May 19 - Sun, May 26
6:35 am - 8:30 amABE-LHR
20h 55m1 stop
8:30 am - 9:37 pmLHR-ABE
18h 07m1 stop
$769United Airlines
Find Deal
Sat, May 18 - Sat, May 25
5:31 pm - 1:15 pmABE-LHR
14h 44m1 stop
11:35 am - 11:17 pmLHR-ABE
16h 42m1 stop
$1,280Delta
Find Deal
Thu, May 16 - Thu, May 23
12:24 pm - 6:45 amABE-LHR
13h 21m2 stops
1:55 pm - 11:17 pmLHR-ABE
14h 22m1 stop
$1,285Delta
Find Deal
Thu, May 16 - Thu, May 23
5:30 pm - 11:45 amABE-LHR
13h 15m1 stop
9:30 am - 9:37 pmLHR-ABE
17h 07m2 stops
$1,335United Airlines
Find Deal
Sat, May 18 - Sat, May 25
1:36 pm - 2:40 pmABE-LHR
20h 04m2 stops
7:25 am - 10:02 pmLHR-ABE
19h 37m2 stops
$1,369
Find Deal
Sun, May 19 - Sun, May 26
5:30 pm - 4:40 pmABE-LHR
18h 10m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$1,503
Find Deal
Sat, May 18 - Thu, May 30
5:30 pm - 4:40 pmABE-LHR
18h 10m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$1,553
Find Deal
Sat, May 18 - Sun, May 26
5:30 pm - 4:40 pmABE-LHR
18h 10m2 stops
6:00 am - 4:58 pmLHR-ABE
15h 58m2 stops
$1,618
Find Deal
Sat, May 18 - Tue, May 28
4:48 pm - 12:10 pmABE-LHR
14h 22m1 stop
12:15 pm - 12:22 amLHR-ABE
17h 07m1 stop
$1,690American Airlines
Find Deal
Fri, May 17 - Tue, May 21

Flights from Allentown to London - Travel Insights & Trends

Get data-powered insights and trends into flights from Allentown to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Allentown to London Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Allentown to London Heathrow Airport were found on United Airlines ($698) and Delta ($708). Delta proposed the cheapest one-way flight at $538.

Good to know

Cheapest flight

$538
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 $538 for a one-way ticket and $698 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 $839 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 $1,063 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 10980 reviews
6.7Food
7.7Boarding
7.1Entertainment
7.2Comfort
8.1Crew
Airline reviews

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

8.0 ExcellentAnonymous, May 2024IAH - AKL
Read more about United Airlines reviews

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Great crew. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

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.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

Always getting updates by email very easy to check in on line. There was plenty of checking in staff to get you all through. It was nice that the flight attendants took time to talk to you and were interested in your holiday.

Flight from Phoenix to London was very quiet. Excellent space available for comfort, couldn't fault

Food was very average. And top up drinks offer was absent. For a 11 hour long flight that should be the minimum. The crew didn't want to be there. I understand it was new year day but given they had signed up for it

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.
7/13Sat
1 stopDelta
12h 19mABE-LHR
$538
5/21Tue
2 stopsDelta
13h 21mABE-LHR
$824
5/31Fri
2 stopsUnited Airlines
23h 30mABE-LHR
$873
5/20Mon
2 stopsDelta
13h 21mABE-LHR
$1,314
5/31Fri
1 stopUnited Airlines
21h 20mABE-LHR
$1,382
7/8Mon
3 stops
40h 04mABE-LHR
$2,159

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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.
5/19Sun
multi-stopUnited Airlines
18h 20mABE-LHR
5/26Sun
multi-stopUnited Airlines
18h 07mLHR-ABE
$719
5/18Sat
multi-stopUnited Airlines
20h 55mABE-LHR
5/25Sat
multi-stopUnited Airlines
18h 07mLHR-ABE
$769
5/16Thu
multi-stopDelta
14h 44mABE-LHR
5/23Thu
multi-stopDelta
16h 42mLHR-ABE
$1,280
5/16Thu
multi-stopDelta
13h 21mABE-LHR
5/23Thu
multi-stopDelta
14h 22mLHR-ABE
$1,285
5/18Sat
multi-stopUnited Airlines
13h 15mABE-LHR
5/25Sat
multi-stopUnited Airlines
17h 07mLHR-ABE
$1,335
5/19Sun
multi-stop
20h 04mABE-LHR
5/26Sun
multi-stop
19h 37mLHR-ABE
$1,369
5/18Sat
multi-stop
18h 10mABE-LHR
5/30Thu
multi-stop
15h 58mLHR-ABE
$1,503
5/18Sat
multi-stop
18h 10mABE-LHR
5/26Sun
multi-stop
15h 58mLHR-ABE
$1,553
5/18Sat
multi-stop
18h 10mABE-LHR
5/28Tue
multi-stop
15h 58mLHR-ABE
$1,618
5/17Fri
multi-stopAmerican Airlines
14h 22mABE-LHR
5/21Tue
multi-stopAmerican Airlines
17h 07mLHR-ABE
$1,690

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Allentown - London Heathrow Airport Flights

Departure:

Allentown (undefined)United States

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Allentown

Cabin classes: