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Cheap flights from Allentown (ABE) to Heathrow (LHR) from $547

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 10/8. 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
Apr 29 — May 61
From?
To?
Mon 4/29
Mon 5/6
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 April 24, 2024.

Round-trip from

$644

One-way from

$547
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 Monday, 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 57 days early can save you up to 15% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from Allentown to London Heathrow Airport for as little as $650 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 $760 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 January. Prices to London Heathrow Airport from Allentown average $652. You can even find prices in January for less than $652, as users have found deals to London Heathrow Airport from as low as $334. 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 34%.

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 KLM flights from Allentown to Heathrow

Explore cheap flight options specifically provided by KLM 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 3,073,952 searches. Data last updated April 24, 2024.
Check out some of the cheapest KLM flights we've come across from Allentown to London. Come back soon if you're not finding the exact deal you're looking for.
Wed 5/226:00 amABE - LHR
1 stop19h 25mKLM
Mon 5/271:55 pmLHR - ABE
1 stop14h 22mKLM
Deal found 4/23$1,325
Sat 6/295:49 pmABE - LHR
1 stop14h 26mKLM
Fri 7/1211:35 amLHR - ABE
1 stop16h 39mKLM
Deal found 4/23$2,067

Cheap American Airlines flights from Allentown to Heathrow

Explore cheap flight options specifically provided by American 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 3,073,952 searches. Data last updated April 24, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Allentown to London. Deals are refreshing constantly so come back soon for more options.
Mon 9/235:45 pmABE - LHR
1 stop13h 25mAmerican Airlines
Mon 9/3012:15 pmLHR - ABE
1 stop14h 55mAmerican Airlines
Deal found 4/22$686
Mon 9/235:45 pmABE - LHR
2 stops12h 30mAmerican Airlines
Mon 9/3012:15 pmLHR - ABE
1 stop17h 01mAmerican Airlines
Deal found 4/22$690
Fri 8/165:45 pmABE - LHR
1 stop13h 25mAmerican Airlines
Tue 9/39:15 amLHR - ABE
1 stop12h 09mAmerican Airlines
Deal found 4/22$786
Fri 8/165:45 pmABE - LHR
2 stops12h 05mAmerican Airlines
Tue 9/39:15 amLHR - ABE
1 stop12h 09mAmerican Airlines
Deal found 4/22$790
Fri 8/165:45 pmABE - LHR
1 stop10h 20mAmerican Airlines
Tue 9/39:15 amLHR - ABE
1 stop12h 09mAmerican Airlines
Deal found 4/24$828
Fri 8/165:45 pmABE - LHR
2 stops12h 05mAmerican Airlines
Tue 9/33:15 pmLHR - ABE
1 stop11h 55mAmerican Airlines
Deal found 4/24$833
Fri 8/165:45 pmABE - LHR
2 stops12h 55mAmerican Airlines
Sat 8/319:15 amLHR - ABE
1 stop12h 09mAmerican Airlines
Deal found 4/23$839
Fri 8/165:45 pmABE - LHR
2 stops12h 05mAmerican Airlines
Sat 8/319:15 amLHR - ABE
1 stop12h 09mAmerican Airlines
Deal found 4/22$840
Mon 9/235:45 pmABE - LHR
2 stops12h 30mAmerican Airlines
Mon 9/309:55 amLHR - ABE
2 stops17h 15mAmerican Airlines
Deal found 4/22$890

Cheap Allentown to Heathrow flights in April & May 2024

Find cheap flight options from Allentown to Heathrow specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 24, 2024.
These are some of the most attractive deals on flights from Allentown to London in 2024. Check back soon for alternative fares.
Tue 5/75:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/146:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 4/23$657
Tue 5/75:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/141:05 pmLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 4/23$666
Sun 4/285:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/146:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 4/23$728
Sun 4/285:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/141:05 pmLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 4/23$737
Fri 4/2612:23 pmABE - LHR
1 stop13h 02mDelta
Tue 4/301:55 pmLHR - ABE
1 stop14h 15mDelta
Deal found 4/23$787
Fri 4/266:00 amABE - LHR
1 stop20h 50mDelta
Tue 4/3012:45 pmLHR - ABE
1 stop15h 25mDelta
Deal found 4/22$788
Fri 4/266:00 amABE - LHR
1 stop19h 25mDelta
Tue 4/3012:10 pmLHR - ABE
2 stops16h 00mDelta
Deal found 4/23$791
Fri 4/2612:23 pmABE - LHR
1 stop14h 27mDelta
Tue 4/3012:10 pmLHR - ABE
2 stops16h 00mDelta
Deal found 4/22$792
Thu 4/256:25 amABE - LHR
1 stop21h 40mAmerican Airlines
Wed 5/17:40 amLHR - ABE
2 stops21h 31mAmerican Airlines
Deal found 4/23$855

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 3,073,952 searches. Data last updated April 24, 2024.
These are some of the most attractive deals on flights from Allentown to London in 2024. Check back soon for alternative fares.
Tue 5/75:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/146:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 4/23$657
Tue 5/75:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/141:05 pmLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 4/23$666
Mon 9/235:45 pmABE - LHR
1 stop13h 25mAmerican Airlines
Mon 9/3012:15 pmLHR - ABE
1 stop14h 55mAmerican Airlines
Deal found 4/22$686
Mon 9/235:45 pmABE - LHR
2 stops12h 30mAmerican Airlines
Mon 9/3012:15 pmLHR - ABE
1 stop17h 01mAmerican Airlines
Deal found 4/22$690
Wed 8/211:00 pmABE - LHR
1 stop13h 50mDelta
Tue 8/2712:45 pmLHR - ABE
1 stop15h 41mDelta
Deal found 4/23$714
Wed 8/211:00 pmABE - LHR
1 stop13h 50mDelta
Tue 8/2712:10 pmLHR - ABE
2 stops16h 16mDelta
Deal found 4/23$718
Sun 4/285:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/146:50 amLHR - ABE
2 stops15h 05mUnited Airlines
Deal found 4/23$728
Sun 4/285:30 pmABE - LHR
1 stop13h 15mUnited Airlines
Tue 5/141:05 pmLHR - ABE
1 stop13h 28mUnited Airlines
Deal found 4/23$737
Thu 8/221:00 pmABE - LHR
1 stop12h 25mDelta
Wed 8/281:55 pmLHR - ABE
1 stop14h 31mDelta
Deal found 4/23$764

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 3,073,952 searches. Data last updated April 24, 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.
Tue 10/81:00 pmABE - LHR
1 stop12h 25mDelta
Deal found 4/24$547
Sun 6/912:27 pmABE - LHR
1 stop14h 23mDelta
Deal found 4/22$1,212
Mon 6/1012:27 pmABE - LHR
2 stops13h 18mDelta
Deal found 4/22$1,507

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 3,073,952 searches. Data last updated April 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$657 - $1,325

Route

Depart

Return

Price

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 5/7

1 stop13h 15m

London Heathrow

Tue 5/14

2 stops15h 05m

$657

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Tue 5/7

1 stop13h 15m

London Heathrow

Tue 5/14

1 stop13h 28m

$666

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 9/23

1 stop13h 25m

London Heathrow

Mon 9/30

1 stop14h 55m

$686

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Mon 9/23

2 stops12h 30m

London Heathrow

Mon 9/30

1 stop17h 01m

$690

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 8/21

1 stop13h 50m

London Heathrow

Tue 8/27

1 stop15h 41m

$714

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 8/21

1 stop13h 50m

London Heathrow

Tue 8/27

2 stops16h 16m

$718

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Thu 8/22

1 stop12h 25m

London Heathrow

Wed 8/28

1 stop14h 31m

$764

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 8/21

2 stops19h 00m

London Heathrow

Tue 8/27

2 stops18h 18m

$1,031

Allentown-BethlehemLondon Heathrow

ABE - LHR

ABELHR

Allentown-Bethlehem

Wed 5/22

1 stop19h 25m

London Heathrow

Mon 5/27

1 stop14h 22m

$1,325

Flights are sorted by cheapest first

Deals found on 4/23

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 April 21, 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 $1,089 while a round-trip flight costs $806. Price data was last updated on April 21, 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 $1,173). 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

$675

February

$664

March

$715

April

$700

May

$748

June

$1,173

July

$987

August

$779

September

$748

October

$712

November

$653

December

$672

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 April 24, 2024.
To help decide which airline to fly from Allentown to London, see what other customers have to say about KLM, American Airlines and United 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
11,004 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.5

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
11,004 reviews
Delta
8.1
Very good
11,004 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.5

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

KLM
7.9
Good
1,629 reviews
Delta
8.1
Very good
11,004 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.5

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,255 reviews
Delta
8.1
Very good
11,004 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.5

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,898 reviews
Delta
8.1
Very good
11,004 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.1

Food

7.5

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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 $700 on Cheapflights?

    Yes, there are multiple flights from Allentown to London Heathrow Airport for under $700. The cheapest flight booked recently is on United Airlines for just $657, but on average you can expect to pay $783.

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

    United Airlines, at $657, was found to be the cheapest airline from Allentown to London Heathrow Airport.Alternate airlines to your destination round-trip include American Airlines and Delta.

  • 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 4/23.

See more FAQs

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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 3,073,952 searches. Data last updated April 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$647Average$1,166FlexibilityNo 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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