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Find cheap flights from Allentown to the United Kingdom from $423

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 9/3. 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
Sun 7/7
Sun 7/14

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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$692
Edinburgh
Edinburgh2 stops$1,378
Manchester
Manchester2 stops$954

Good to know

Cheapest flight

$423
Flight from Allentown to London Gatwick 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 12% 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 10696 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.7Food
7.2Comfort
Airline reviews

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.

10.0 ExcellentLeo, Jun 2024CLT - ORD
Read more about United Airlines reviews

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. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Everything was pretty good except for food. They need to improve on it compared to other airlines.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the premium paid for the first class ticket

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

I had a great flight. Everything went smoothly and the flight arrived early.

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!!!

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

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

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.

Book cheap flights from Allentown to the United Kingdom

Recent round-trip flight deals

9/11Wed
1 stopUnited Airlines
13h 05mABE-LHR
9/15Sun
2 stopsUnited Airlines
15h 08mLHR-ABE
$692
9/11Wed
1 stopUnited Airlines
13h 05mABE-LHR
9/15Sun
1 stopUnited Airlines
13h 28mLHR-ABE
$701
9/18Wed
1 stopVirgin Atlantic
12h 59mABE-LHR
9/22Sun
1 stopVirgin Atlantic
15h 21mLHR-ABE
$808
8/12Mon
1 stopUnited Airlines
18h 15mABE-LHR
8/20Tue
2 stopsUnited Airlines
18h 18mLHR-ABE
$878
9/18Wed
1 stopVirgin Atlantic
19h 49mABE-LHR
9/22Sun
2 stopsVirgin Atlantic
21h 36mLHR-ABE
$1,002
7/5Fri
1 stopDelta
17h 15mABE-LHR
7/12Fri
2 stopsDelta
21h 54mLHR-ABE
$1,106
7/5Fri
1 stopDelta
17h 15mABE-LHR
7/9Tue
1 stopDelta
14h 14mLHR-ABE
$1,143
7/20Sat
2 stopsAmerican Airlines
30h 53mABE-MAN
7/28Sun
2 stopsAmerican Airlines
48h 03mMAN-ABE
$1,149
7/22Mon
3 stops
30h 50mABE-LHR
7/31Wed
3 stops
35h 12mLHR-ABE
$1,173
7/19Fri
2 stopsAmerican Airlines
16h 28mABE-MAN
7/28Sun
2 stopsAmerican Airlines
19h 38mMAN-ABE
$1,598

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Recent one-way flight deals

9/3Tue
1 stop
15h 39mABE-LGW
$423
9/3Tue
3 stops
46h 24mABE-LHR
$510
9/3Tue
3 stops
48h 04mABE-LCY
$520
9/3Tue
2 stopsUndisclosed Carrier
20h 35mABE-LHR
$597
9/3Tue
2 stopsUndisclosed Carrier
20h 10mABE-LCY
$618
6/19Wed
1 stopDelta
12h 21mABE-LHR
$784
6/21Fri
1 stopDelta
12h 21mABE-LHR
$834
7/21Sun
1 stopDelta
12h 19mABE-LHR
$872
6/12Wed
1 stopUnited Airlines
18h 15mABE-LHR
$1,332
7/5Fri
1 stopDelta
11h 50mABE-LHR
$1,628

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Allentown - United Kingdom Flights

Departure:

Allentown (ABE)United States

Return flight deals:

United Kingdom - Allentown

Cabin classes: