ABE - LON

$396 Find Cheap Flights from Allentown to London

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 8/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
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
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41,299,237 searches in the past 7 days on KAYAK

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Flights Deals

Cheap Flight Deals from Allentown to London (ABE-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to London that are departing in the next months. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Allentown to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
1:00 pm - 1:30 pmABE-LHR
19h 30m1 stop
Delta Logo
6:15 am - 11:23 pmLHR-ABE
22h 08m2 stops
$601Delta
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Wed, Oct 8 - Wed, Oct 15
Delta Logo
1:00 pm - 1:30 pmABE-LHR
19h 30m1 stop
Delta Logo
6:30 am - 12:08 pmLHR-ABE
34h 38m2 stops
$602Delta
Find Deal
Wed, Oct 8 - Tue, Oct 14
Delta Logo
6:30 am - 9:25 amABE-LHR
21h 55m2 stops
Delta Logo
6:15 am - 11:23 pmLHR-ABE
22h 08m2 stops
$605Delta
Find Deal
Wed, Oct 8 - Wed, Oct 15
KLM Logo
5:40 pm - 1:30 pmABE-LHR
14h 50m1 stop
KLM Logo
9:20 am - 5:14 pmLHR-ABE
12h 54m1 stop
$659KLM
Find Deal
Wed, Sep 10 - Mon, Sep 15
Logo
4:32 pm - 10:10 amABE-LGW
12h 38m1 stop
Logo
2:00 pm - 8:22 pmLGW-ABE
35h 22m1 stop
$1,006
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Sun, Oct 5 - Tue, Oct 21
Logo
3:01 pm - 10:00 amABE-LGW
37h 59m2 stops
Logo
2:00 pm - 8:22 pmLGW-ABE
35h 22m1 stop
$1,023
Find Deal
Sun, Oct 5 - Tue, Oct 21
United Airlines Logo
5:35 pm - 11:45 amABE-LHR
13h 10m1 stop
United Airlines Logo
8:30 am - 5:00 pmLHR-ABE
13h 30m1 stop
$1,050United Airlines
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Tue, Jul 1 - Tue, Aug 12
KLM Logo
6:05 pm - 1:30 pmABE-LHR
14h 25m1 stop
KLM Logo
9:20 am - 10:29 pmLHR-ABE
18h 09m1 stop
$1,094KLM
Find Deal
Wed, Jun 11 - Wed, Jun 18
United Airlines Logo
5:35 pm - 11:45 amABE-LHR
13h 10m1 stop
United Airlines Logo
8:30 am - 4:59 pmLHR-ABE
13h 29m1 stop
$1,119United Airlines
Find Deal
Sat, Jun 14 - Sat, Jun 21
American Airlines Logo
5:27 pm - 12:30 pmABE-LHR
14h 03m1 stop
American Airlines Logo
9:15 am - 4:55 pmLHR-ABE
12h 40m1 stop
$1,341American Airlines
Find Deal
Wed, May 21 - Sat, May 31
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KAYAK's insights & trends for Allentown to London flights

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?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Allentown to London were found on Delta ($601) and KLM ($659).

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Good to know

Low seasonFebruary
High seasonJanuary
Cheapest flight$396
Best time to beat the crowds with an average 58% drop in price.
Most popular time to fly with an average 130% increase in price.
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 flights from Allentown to London

  • What is the cheapest flight from Allentown to London?

    In the last 3 days, the lowest price for a flight from Allentown to London was $396 for a one-way ticket and $601 for a round-trip.

  • Do I need a passport to fly between Allentown and London?

    Yes

  • Which airports will I be using when flying from Allentown to London?

    When flying out of Allentown you will be using Allentown-Bethlehem. You will be landing at one of these airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from Allentown to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Allentown to London?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Allentown and London, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Allentown to London?

    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.

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

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

    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 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 London?

    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 from Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline 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.
7.2
American AirlinesOverall score based on 10000 reviews
6.9Entertainment
7.2Comfort
7.5Boarding
8.0Crew
6.5Food
Airline reviews

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

8.0 ExcellentAnonymous, Apr 2025FCO - LHR
Read more American Airlines reviews

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

British Airways staff are very polite and willing to help.

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Everything you need to know for your flight from Allentown to London

Information on your arrival and departure airports

Allentown (ABE)

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