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Cheap flights from Allentown (ABE) to Heathrow (LHR) from $538

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight 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.
ABE — LHR
May 13 — May 201
From?
To?
Mon 5/13
Mon 5/20
1 adult, Economy
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Cheap flight deals from Allentown to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 8, 2024.

Round-trip from

$643

One-way from

$538
From Allentown-Bethlehem to London Heathrow
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One-way flight from Allentown-Bethlehem to London Heathrow
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What is the cheapest day to fly round-trip from Allentown to London Heathrow Airport?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Allentown to London Heathrow Airport?

Users have found that booking a flight from Allentown to London Heathrow Airport at least 31 days early can save you up to 22% on average compared to booking a flight this week. If booking 31 days before your flight isn’t an option for you, users have found flights from Allentown to London Heathrow Airport for as little as $654 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $751 for flights departing within the next 3 days.

What is the cheapest month to fly from Allentown to London Heathrow Airport?

The best pricing can be found in the month of February. Prices to London Heathrow Airport from Allentown average $635. You can even find prices in February for less than $635, as users have found deals to London Heathrow Airport from as low as $352. The month of June appears to be one of the more expensive times to travel to London Heathrow Airport from Allentown. Flying in the targeted month can save you up to 27%.

When is the cheapest time to fly from Allentown to London Heathrow Airport (ABE - LHR)?

When flying from Allentown to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 47% versus a flight in the afternoon.

Cheap Delta flights from Allentown to Heathrow

Explore cheap flight options specifically provided by Delta for the route between Allentown and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Check out some of the cheapest Delta flights we've come across from Allentown to London. Come back soon if you're not finding the exact deal you're looking for.
Tue 9/106:30 amABE - LHR
1 stop18h 55mDelta
Tue 9/241:55 pmLHR - ABE
1 stop14h 31mDelta
Deal found 5/7$755
Mon 9/95:40 pmABE - LHR
1 stop12h 30mDelta
Mon 9/231:55 pmLHR - ABE
1 stop14h 31mDelta
Deal found 5/7$805
Wed 5/226:00 amABE - LHR
2 stops20h 15mDelta
Mon 5/2712:45 pmLHR - ABE
1 stop15h 32mDelta
Deal found 5/7$919
Wed 5/226:00 amABE - LHR
2 stops20h 15mDelta
Mon 5/2712:45 pmLHR - ABE
1 stop15h 32mDelta
Deal found 5/8$940
Wed 7/36:05 amABE - LHR
2 stops20h 10mDelta
Wed 7/106:15 amLHR - ABE
2 stops21h 59mDelta
Deal found 5/7$1,149
Wed 7/36:05 amABE - LHR
2 stops20h 10mDelta
Wed 7/109:20 amLHR - ABE
2 stops18h 54mDelta
Deal found 5/8$1,177
Wed 7/36:05 amABE - LHR
2 stops20h 10mDelta
Wed 7/1012:45 pmLHR - ABE
1 stop15h 29mDelta
Deal found 5/7$1,263
Wed 7/36:05 amABE - LHR
2 stops20h 10mDelta
Wed 7/1012:45 pmLHR - ABE
1 stop15h 29mDelta
Deal found 5/8$1,284
Wed 6/125:49 pmABE - LHR
1 stop14h 26mDelta
Sun 6/3011:30 amLHR - ABE
2 stops16h 44mDelta
Deal found 5/6$1,595

Cheap United Airlines flights from Allentown to Heathrow

Explore cheap flight options specifically provided by United Airlines for the route between Allentown and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Allentown to London. Deals are refreshing constantly so come back soon for more options.
Fri 9/275:32 pmABE - LHR
1 stop13h 13mUnited Airlines
Sun 10/68:30 amLHR - ABE
1 stop13h 31mUnited Airlines
Deal found 5/8$899
Wed 5/226:35 amABE - LHR
1 stop18h 20mUnited Airlines
Mon 5/278:30 amLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 5/7$1,007
Sun 7/285:40 pmABE - LHR
1 stop13h 05mUnited Airlines
Sat 8/101:05 pmLHR - ABE
1 stop13h 33mUnited Airlines
Deal found 5/7$1,107
Tue 7/305:40 pmABE - LHR
1 stop13h 05mUnited Airlines
Sun 8/48:30 amLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 5/7$1,190
Fri 5/175:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Sun 5/196:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 5/7$1,210
Fri 9/275:32 pmABE - LHR
1 stop13h 13mUnited Airlines
Sun 10/69:30 amLHR - ABE
2 stops16h 13mUnited Airlines
Deal found 5/8$1,234
Tue 6/115:34 pmABE - LHR
1 stop13h 11mUnited Airlines
Sun 6/168:30 amLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 5/8$1,260
Sun 7/285:40 pmABE - LHR
1 stop13h 05mUnited Airlines
Sat 8/109:30 amLHR - ABE
2 stops17h 08mUnited Airlines
Deal found 5/7$1,270
Sun 6/95:34 pmABE - LHR
1 stop13h 11mUnited Airlines
Sun 6/168:30 amLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 5/8$1,315

Cheap Allentown to Heathrow flights in May & June 2024

Find cheap flight options from Allentown to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Prices were last updated on May 8, 2024.
These are some of the most attractive deals on flights from Allentown to London in 2024. Check back soon for alternative fares.
Fri 5/105:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Fri 5/316:50 amLHR - ABE
2 stops15h 08mUnited Airlines
Deal found 5/6$811
Fri 5/104:48 pmABE - LHR
1 stop14h 22mAmerican Airlines
Fri 5/3112:15 pmLHR - ABE
1 stop17h 07mAmerican Airlines
Deal found 5/6$835
Wed 5/226:00 amABE - LHR
2 stops20h 15mDelta
Mon 5/2712:45 pmLHR - ABE
1 stop15h 32mDelta
Deal found 5/7$919
Wed 5/226:00 amABE - LHR
2 stops20h 15mDelta
Mon 5/279:20 amLHR - ABE
2 stops18h 57mDelta
Deal found 5/8$940
Wed 5/226:35 amABE - LHR
1 stop18h 20mUnited Airlines
Mon 5/278:30 amLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 5/7$1,007
Wed 5/2212:24 pmABE - LHR
1 stop13h 01mKLM
Mon 5/271:55 pmLHR - ABE
1 stop14h 22mKLM
Deal found 5/8$1,027
Fri 5/175:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Sun 5/196:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 5/7$1,210
Thu 6/67:51 pmABE - LHR
1 stop11h 19mAmerican Airlines
Thu 6/1312:15 pmLHR - ABE
1 stop15h 04mAmerican Airlines
Deal found 5/7$1,213
Thu 6/2012:22 pmABE - LHR
1 stop14h 18mAmerican Airlines
Sun 6/3012:15 pmLHR - ABE
1 stop12h 06mAmerican Airlines
Deal found 5/7$1,241

Allentown to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Allentown and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
These are some of the most attractive deals on flights from Allentown to London in 2024. Check back soon for alternative fares.
Mon 9/3012:05 pmABE - LHR
2 stops13h 50mAmerican Airlines
Tue 10/812:35 pmLHR - ABE
2 stops14h 35mAmerican Airlines
Deal found 5/8$691
Fri 8/236:30 amABE - LHR
1 stop18h 25mUnited Airlines
Mon 8/261:30 pmLHR - ABE
2 stops32h 28mUnited Airlines
Deal found 5/8$726
Tue 9/106:30 amABE - LHR
1 stop18h 55mDelta
Tue 9/241:55 pmLHR - ABE
1 stop14h 31mDelta
Deal found 5/7$755
Fri 8/236:30 amABE - LHR
1 stop18h 25mUnited Airlines
Mon 8/268:30 amLHR - ABE
1 stop18h 18mUnited Airlines
Deal found 5/8$770
Mon 9/305:32 pmABE - LHR
1 stop13h 13mUnited Airlines
Tue 10/86:50 amLHR - ABE
2 stops15h 11mUnited Airlines
Deal found 5/8$791
Mon 9/305:32 pmABE - LHR
1 stop13h 13mUnited Airlines
Tue 10/88:30 amLHR - ABE
1 stop13h 31mUnited Airlines
Deal found 5/8$799
Mon 9/95:40 pmABE - LHR
1 stop12h 30mDelta
Mon 9/231:55 pmLHR - ABE
1 stop14h 31mDelta
Deal found 5/7$805
Fri 5/105:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Fri 5/316:50 amLHR - ABE
2 stops15h 08mUnited Airlines
Deal found 5/6$811
Fri 5/104:48 pmABE - LHR
1 stop14h 22mAmerican Airlines
Fri 5/3112:15 pmLHR - ABE
1 stop17h 07mAmerican Airlines
Deal found 5/6$835

Allentown to Heathrow flights leaving soon

Find last-minute flight options from Allentown to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Book one of these great deals on flights from Allentown to London. Tip: verify your flight details before completing your reservation.
Fri 5/175:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Sun 5/196:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 5/7$1,210
Fri 5/175:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Sun 5/198:30 amLHR - ABE
1 stop13h 25mUnited Airlines
Deal found 5/7$1,322
Fri 5/175:30 pmABE - LHR
2 stops18h 10mMultiple Airlines
Sun 5/198:40 amLHR - ABE
2 stops17h 53mMultiple Airlines
Deal found 5/7$2,221

One-way flights to Heathrow from Allentown

Search for one-way flight options from Allentown to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Some of the best available deals we've found on one-way flights from Allentown to London. Users in need of a round-trip flight from Allentown to London instead should update the search form at the top of page.
Thu 7/1112:27 pmABE - LHR
1 stop12h 58mDelta
Deal found 5/6$538
Thu 7/255:55 pmABE - LHR
1 stop12h 15mDelta
Deal found 5/7$548
Fri 6/76:40 amABE - LHR
2 stops20h 40mUnited Airlines
Deal found 5/8$948
Fri 6/75:34 pmABE - LHR
1 stop31h 21mUnited Airlines
Deal found 5/8$960
Thu 6/612:24 pmABE - LHR
2 stops13h 21mDelta
Deal found 5/6$967
Thu 6/612:24 pmABE - LHR
1 stop19h 51mDelta
Deal found 5/6$1,262
Fri 6/712:27 pmABE - LHR
2 stops13h 18mDelta
Deal found 5/6$1,307

Find flights from Allentown to Heathrow within your budget

Customize your flight search to find flights from Allentown to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$755 - $1,428

Route

Depart

Return

Price

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 9/10

1 stop18h 55m

London Heathrow

Tue 9/24

1 stop14h 31m

$755

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 9/9

1 stop12h 30m

London Heathrow

Mon 9/23

1 stop14h 31m

$805

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Fri 9/27

1 stop13h 13m

London Heathrow

Sun 10/6

1 stop13h 31m

$899

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 5/22

2 stops20h 15m

London Heathrow

Mon 5/27

1 stop15h 32m

$919

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 5/22

2 stops20h 15m

London Heathrow

Mon 5/27

1 stop15h 32m

$940

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 5/22

1 stop18h 20m

London Heathrow

Mon 5/27

1 stop13h 28m

$1,007

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 5/22

1 stop13h 01m

London Heathrow

Mon 5/27

1 stop14h 22m

$1,027

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 7/3

1 stop11h 19m

London Heathrow

Wed 7/10

1 stop18h 13m

$1,141

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Thu 6/20

3 stops32h 50m

London Heathrow

Sun 7/7

3 stops20h 07m

$1,428

Flights are sorted by cheapest first

Deals found on 5/7

When is the cheapest time to fly from Allentown to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Allentown to Heathrow. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Allentown to London Heathrow Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Heathrow by month

Plan your trip from Allentown to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from Allentown to Heathrow is currently $933 while a round-trip flight costs $991. Price data was last updated on May 5, 2024.

Currently, November is the cheapest month in which you can book a flight from Allentown to London Heathrow Airport (average of $653). Flying from Allentown to London Heathrow Airport in June is currently the most expensive (average of $1,158). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$673

February

$663

March

$715

April

$692

May

$735

June

$1,158

July

$980

August

$776

September

$743

October

$710

November

$653

December

$671

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated May 8, 2024.
To help decide which airline to fly from Allentown to London, see what other customers have to say about Delta, United Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,789 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,789 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,592 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
11,043 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,677 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Allentown to London Heathrow?

    Allentown-Bethlehem (ABE) is the airport you will fly out of if you book a flight from Allentown to London Heathrow. You should not have trouble finding flights to London Heathrow from Allentown-Bethlehem; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Allentown airport to London Heathrow. It is only a 3.9 mi journey to Allentown-Bethlehem (ABE) from Allentown’s city center.

  • Can I find flights from Allentown to London Heathrow Airport for under $800 on Cheapflights?

    Yes, there are multiple flights from Allentown to London Heathrow Airport for under $800. The cheapest flight booked recently is on Delta for just $755, but on average you can expect to pay $1,106.

  • Are there last-minute flights available from Allentown to London Heathrow Airport for under $1,300?

    There are currently 3+ open flights from Allentown to London Heathrow Airport within the next 7 days for less than $1,300.

  • What are the cheapest airlines flying from Allentown to London Heathrow Airport round-trip?

    Delta, at $755, was found to be the cheapest airline from Allentown to London Heathrow Airport.Alternate airlines to your destination round-trip include United Airlines and KLM.

  • What does ABE to LHR mean?

    Great question - ABE to LHR just means Allentown-Bethlehem Airport to London Heathrow Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Allentown to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Allentown to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Allentown to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Allentown to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Allentown to Heathrow that include hotel bookings?

    Yes. In addition to deals on Allentown to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Allentown to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to Heathrow.

  • Can I find deals for business class flights from Allentown to Heathrow?

    Yes. Cheapflights offers flight deals from Allentown to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Allentown to Heathrow that allow pets onboard?

    Many airlines flying from Allentown to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Allentown to Heathrow?

    Yes, you can often find last-minute deals on Allentown to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Allentown to London Heathrow Airport flight deals updated?

    The Allentown to London Heathrow Airport flight deals you see on this page were last updated on 5/8.

See more FAQs

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See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Allentown to Heathrow

Discover the top airline that operate flights from Allentown to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$652Average$1,063FlexibilityNo cancel feeOn-time71%
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Search flights from Allentown to Heathrow by cabin class

Find flights from Allentown to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Allentown to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Allentown today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Allentown to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Allentown to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Allentown to Heathrow with no change fees?

Yes! Cheapflights helps users easily find flights from Allentown to Heathrow with no change fees.

Can Cheapflights notify me if prices for flights from Allentown to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Allentown to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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