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Find cheap flights from Allentown to the United Kingdom from $627

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 the United Kingdom departing on 10/6. 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
sex 6/21
sex 6/28

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Best United Kingdom Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

London
London1 stop$627
Edinburgh
Edinburgh1 stop$1,282
Manchester
Manchester2 stops$1,090

Good to know

Cheapest flight

$627
Flight from Allentown to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Allentown to the United Kingdom?

    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 the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United Kingdom 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 the United Kingdom?

    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 the United Kingdom with an airline and back to Allentown with another airline.

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

    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 the United Kingdom 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 tips for finding cheap flights to the United Kingdom

  • Morning departure is around 11% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Allentown to the United Kingdom

 
Need help choosing which airline to fly with from Allentown to the United Kingdom? 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 10870 reviews
6.7Food
7.2Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

10.0 ExcellentMohammad, May 2024EWR - DFW
Read more about United Airlines reviews

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a flight operated by Lufthansa. See me prior comments, which were meant for this experience. The CSA, Ashley, should be reprimanded if not fired for incompetence, being rude, and very, very slow. She was whispering to other CSAs, blaming my flight change on others, unable to give me a seat assignment, telling me could not help without offering any advice (I travel 200,000 miles a year and am a consultant to the airlines, so I know how this gets done PRETTY DAMN WELL). Then, she gave me literally the worst seat on the airline (yes, there were other seats open) - the one right next to the bathroom that was so bad the other PAX next to me left to move to another seat. My seat kept getting rammed (3x) by the crew with their carts (no turbulence to speak of), other passengers grabbing the seat to get in or out of the bathroom, and listening to the bathroom flush all night.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

Food wasn’t very good, old business seating configuration on an old A340

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

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.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in flight WiFi Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay (especially this much) for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a terrible attitude for no reason, nor will they act the way this woman did. Unacceptable.

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.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

It was a good flight. Of course it was full, but it went well.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Flight from PHL to PHX arrived 50 minutes early and a gate was available. First class flight attendant Stephanie was very friendly and polite. Sanitizing wipes should be provided with meals in addition to refresher towels.

flight delayed so missed connection and this had to rebook for next day

Book cheap flights from Allentown to the United Kingdom

Recent round-trip flight deals

10/6dom
1 stopDelta
20h 20mABE-LHR
10/15ter
1 stopDelta
15h 41mLHR-ABE
$627
10/6dom
1 stopKLM
18h 55mABE-LHR
10/13dom
1 stopKLM
16h 51mLHR-ABE
$677
9/21sáb
1 stopVirgin Atlantic
15h 20mABE-LHR
9/29dom
2 stopsVirgin Atlantic
31h 31mLHR-ABE
$723
9/21sáb
1 stopUnited Airlines
13h 05mABE-LHR
9/29dom
1 stopUnited Airlines
13h 18mLHR-ABE
$782
8/4dom
1 stopUnited Airlines
13h 05mABE-LHR
8/15qui
1 stopUnited Airlines
13h 28mLHR-ABE
$784
9/21sáb
1 stopAmerican Airlines
10h 20mABE-LHR
9/29dom
1 stopAmerican Airlines
12h 09mLHR-ABE
$788
7/3qua
1 stopAmerican Airlines
11h 19mABE-LHR
7/10qua
1 stopAmerican Airlines
18h 13mLHR-ABE
$893
6/6qui
1 stopVirgin Atlantic
19h 51mABE-LHR
6/13qui
1 stopVirgin Atlantic
16h 39mLHR-ABE
$1,069
9/21sáb
1 stop
17h 14mABE-LGW
9/29dom
1 stop
16h 15mLGW-ABE
$1,266
9/21sáb
1 stop
17h 14mABE-LGW
9/29dom
1 stop
16h 15mLGW-ABE
$1,267

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Recent one-way flight deals

5/27seg
2 stopsDelta
13h 21mABE-LHR
$1,332
5/28ter
2 stops
18h 26mABE-LGW
$1,371
5/27seg
2 stopsDelta
14h 46mABE-LCY
$1,382
5/27seg
2 stopsDelta
16h 36mABE-LGW
$13,449

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Last minute flights from Allentown to the United Kingdom

Last minute flight, train and bus deals

5/26dom
multi-stopUnited Airlines
13h 11mABE-LHR
6/9dom
multi-stopUnited Airlines
13h 28mLHR-ABE
$834
5/26dom
multi-stop
40h 06mABE-LGW
6/6qui
multi-stop
14h 39mLGW-ABE
$878
5/26dom
multi-stop
40h 06mABE-LGW
6/9dom
multi-stop
14h 39mLGW-ABE
$966
5/26dom
multi-stop
22h 00mABE-LGW
6/9dom
multi-stop
14h 39mLGW-ABE
$990
5/26dom
multi-stop
22h 00mABE-LGW
6/6qui
multi-stop
14h 39mLGW-ABE
$998
5/25sáb
multi-stopKLM
16h 35mABE-EDI
5/31sex
multi-stopKLM
34h 52mEDI-ABE
$1,908
5/25sáb
multi-stopKLM
17h 40mABE-EDI
5/31sex
multi-stopKLM
34h 52mEDI-ABE
$1,938
5/26dom
multi-stopAmerican Airlines
11h 17mABE-LHR
6/6qui
multi-stopAmerican Airlines
20h 34mLHR-ABE
$2,089
5/26dom
multi-stopAmerican Airlines
11h 17mABE-LHR
6/7sex
multi-stopAmerican Airlines
17h 36mLHR-ABE
$2,189
5/26dom
multi-stopAmerican Airlines
11h 17mABE-LHR
6/9dom
multi-stopAmerican Airlines
23h 15mLHR-ABE
$2,224

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Allentown - United Kingdom Flights

Departure:

Allentown (ABE)United States

Return flight deals:

United Kingdom - Allentown

Cabin classes: