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Find cheap flights from Allentown to the United Kingdom from $748

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 8/15. 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
Wed 6/12
Wed 6/19

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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$748
Edinburgh
Edinburgh2 stops$918
Manchester
Manchester2 stops$948

Good to know

Cheapest flight

$748
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 37% 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 10980 reviews
8.1Crew
7.2Comfort
7.1Entertainment
6.7Food
7.7Boarding
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.

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

8/15Thu
1 stopUnited Airlines
18h 15mABE-LHR
9/5Thu
2 stopsUnited Airlines
33h 53mLHR-ABE
$748
8/15Thu
2 stopsAmerican Airlines
15h 05mABE-LGW
9/5Thu
2 stopsAmerican Airlines
14h 11mLGW-ABE
$754
8/15Thu
1 stopUnited Airlines
20h 50mABE-LHR
9/5Thu
1 stopUnited Airlines
18h 18mLHR-ABE
$764
8/15Thu
2 stopsDelta
19h 45mABE-LHR
9/5Thu
2 stopsDelta
22h 11mLHR-ABE
$909
9/6Fri
2 stopsDelta
20h 55mABE-EDI
9/15Sun
1 stopDelta
16h 21mEDI-ABE
$918
6/10Mon
2 stopsAmerican Airlines
14h 13mABE-MAN
6/17Mon
2 stopsAmerican Airlines
15h 26mMAN-ABE
$948
9/6Fri
1 stopVirgin Atlantic
24h 05mABE-EDI
9/15Sun
1 stopVirgin Atlantic
16h 21mEDI-ABE
$1,082
6/26Wed
1 stopKLM
12h 46mABE-EDI
7/2Tue
2 stopsKLM
28h 44mEDI-ABE
$1,228
6/26Wed
1 stopVirgin Atlantic
12h 46mABE-EDI
7/2Tue
1 stopVirgin Atlantic
16h 09mEDI-ABE
$1,379
6/26Wed
2 stopsKLM
17h 28mABE-EDI
7/2Tue
2 stopsKLM
28h 44mEDI-ABE
$1,408

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Recent one-way flight deals

8/4Sun
1 stopDelta
12h 44mABE-EDI
$762
5/21Tue
1 stopDelta
14h 44mABE-LHR
$824
8/8Thu
1 stopDelta
12h 35mABE-EDI
$839
5/27Mon
1 stopDelta
12h 39mABE-LHR
$892
5/21Tue
2 stops
18h 30mABE-LGW
$1,085
5/20Mon
2 stopsDelta
13h 21mABE-LHR
$1,314
5/25Sat
1 stopDelta
11h 25mABE-LHR
$1,382
5/20Mon
2 stopsDelta
13h 51mABE-LCY
$1,634
5/20Mon
2 stopsDelta
16h 36mABE-LGW
$13,222

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Last minute flights from Allentown to the United Kingdom

Last minute flight, train and bus deals

5/14Tue
multi-stopDelta
14h 26mABE-LHR
5/21Tue
multi-stopDelta
16h 42mLHR-ABE
$1,104
5/14Tue
multi-stopDelta
14h 26mABE-LHR
5/21Tue
multi-stopDelta
16h 07mLHR-ABE
$1,109
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-stop
18h 10mABE-LHR
5/25Sat
multi-stop
15h 58mLHR-ABE
$1,553
5/15Wed
multi-stopDelta
13h 01mABE-LHR
5/22Wed
multi-stopDelta
16h 42mLHR-ABE
$1,664
5/14Tue
multi-stop
17h 15mABE-LHR
5/22Wed
multi-stop
15h 55mLHR-ABE
$1,869
5/14Tue
multi-stop
17h 15mABE-LHR
5/19Sun
multi-stop
15h 55mLHR-ABE
$1,979
5/14Tue
multi-stop
17h 15mABE-LHR
5/23Thu
multi-stop
15h 58mLHR-ABE
$1,995
5/17Fri
multi-stop
18h 10mABE-LHR
5/22Wed
multi-stop
15h 55mLHR-ABE
$1,997

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Allentown - United Kingdom Flights

Departure:

Allentown (ABE)United States

Return flight deals:

United Kingdom - Allentown

Cabin classes: