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Find cheap flights from Allentown to the United Kingdom from $538

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 the United Kingdom departing on 7/11. 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
jue. 6/6
jue. 6/13

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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$791
Edinburgh
Edinburgh1 stop$1,754

Good to know

Cheapest flight

$538
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 21% cheaper 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 11073 reviews
6.7Food
7.7Boarding
8.1Crew
7.2Comfort
7.1Entertainment
Airline reviews

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.

10.0 ExcellentAnonymous, May 2024EWR - YUL
Read more about United Airlines reviews

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.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

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

Flight departed PHL one hour late due to late arrival of aircraft. On board services were okay. First class menu does not offer any new items; same desserts (cheese & crackers or Mango sorbet). At least there were no credit card promotions during the flight.

After sitting on plane for 7+ hours, flight was canceled. And to makes matters worse, my suitcase is in baggage hell!

Book cheap flights from Allentown to the United Kingdom

Recent round-trip flight deals

5/20lun.
1 stopUnited Airlines
13h 15mABE-LHR
5/27lun.
1 stopUnited Airlines
13h 28mLHR-ABE
$791
5/20lun.
1 stopUnited Airlines
13h 15mABE-LHR
5/27lun.
2 stopsUnited Airlines
15h 08mLHR-ABE
$794
5/22mié.
2 stopsDelta
20h 15mABE-LHR
5/27lun.
1 stopDelta
15h 32mLHR-ABE
$919
7/3mié.
2 stopsDelta
20h 10mABE-LHR
7/10mié.
2 stopsDelta
18h 54mLHR-ABE
$1,063
8/23vie.
2 stopsAmerican Airlines
18h 55mABE-LGW
8/27mar.
2 stopsAmerican Airlines
30h 30mLGW-ABE
$1,119
7/3mié.
1 stopAmerican Airlines
18h 48mABE-LHR
7/10mié.
1 stopAmerican Airlines
15h 13mLHR-ABE
$1,141
6/20jue.
3 stops
32h 50mABE-LHR
7/7dom.
3 stops
20h 07mLHR-ABE
$1,428
6/20jue.
2 stops
23h 45mABE-LHR
7/7dom.
3 stops
20h 07mLHR-ABE
$1,672
8/6mar.
1 stopKLM
17h 35mABE-EDI
8/8jue.
2 stopsKLM
22h 26mEDI-ABE
$2,157
8/6mar.
1 stopKLM
12h 35mABE-EDI
8/8jue.
1 stopKLM
16h 21mEDI-ABE
$2,185

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Recent one-way flight deals

7/11jue.
1 stopDelta
12h 58mABE-LHR
$538
8/2vie.
2 stopsUnited Airlines
33h 55mABE-LHR
$544
6/6jue.
2 stopsDelta
13h 21mABE-LHR
$967
6/27jue.
2 stops
18h 50mABE-LHR
$1,091
6/7vie.
2 stopsUnited Airlines
23h 00mABE-LHR
$1,092
6/7vie.
2 stopsUnited Airlines
24h 00mABE-LCY
$1,130
6/27jue.
1 stopDelta
12h 21mABE-LHR
$1,222
6/6jue.
1 stopDelta
19h 51mABE-LHR
$1,262
6/7vie.
2 stopsDelta
13h 18mABE-LHR
$1,307
7/15lun.
2 stopsDelta
13h 48mABE-LCY
$1,364

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Last minute flights from Allentown to the United Kingdom

Last minute flight, train and bus deals

5/10vie.
multi-stopUnited Airlines
13h 15mABE-LHR
5/31vie.
multi-stopUnited Airlines
15h 08mLHR-ABE
$811
5/10vie.
multi-stopAmerican Airlines
14h 22mABE-LHR
5/31vie.
multi-stopAmerican Airlines
17h 07mLHR-ABE
$835
5/10vie.
multi-stopDelta
20h 15mABE-LHR
5/31vie.
multi-stopDelta
16h 07mLHR-ABE
$1,285
5/8mié.
multi-stop
19h 00mABE-LHR
5/12dom.
multi-stop
17h 03mLHR-ABE
$1,685
5/9jue.
multi-stopUnited Airlines
13h 15mABE-LHR
5/16jue.
multi-stopUnited Airlines
15h 05mLHR-ABE
$1,741
5/9jue.
multi-stopUnited Airlines
13h 15mABE-LHR
5/16jue.
multi-stopUnited Airlines
13h 28mLHR-ABE
$1,750
5/8mié.
multi-stop
18h 55mABE-LHR
5/13lun.
multi-stop
17h 03mLHR-ABE
$1,815
5/9jue.
multi-stop
18h 55mABE-LHR
5/13lun.
multi-stop
17h 03mLHR-ABE
$1,865
5/10vie.
multi-stop
17h 15mABE-LHR
5/13lun.
multi-stop
17h 53mLHR-ABE
$2,169
5/8mié.
multi-stopDelta
13h 01mABE-LHR
5/11sáb.
multi-stopDelta
14h 22mLHR-ABE
$2,345

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Allentown - United Kingdom Flights

Departure:

Allentown (ABE)United States

Return flight deals:

United Kingdom - Allentown

Cabin classes: