HRL - LHR

$646 Find Cheap Flights from Harlingen to London - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$910
Typical prices: $920-$1,159
United Airlines
Thu 2/22Mon 2/26
HRL - LHR • 1 stop
Cheapest one-way
$646
Typical prices: $332-$943
United Airlines
Thu 12/13
HRL - LHR • 1 stop
When to travel
March
Cheapest • 37% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $1,109 (round-trip)
Houston George Bush Intcntl (IAH)
Shortest trip • 13h 20m (one-way)
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Flight Deals

Cheap Flights from Harlingen to Heathrow (HRL-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Harlingen to Heathrow

Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
4:25 pm - 10:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
11h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
9:30 am - 3:44 pmLHR  London Heathrow-HRL Harlingen Valley Intl
36h 14m2 stops Frankfurt am Main Houston George Bush Intcntl
$910United Airlines
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
4:25 pm - 10:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
11h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
9:30 am - 3:44 pmLHR  London Heathrow-HRL Harlingen Valley Intl
36h 14m2 stops Frankfurt am Main Houston George Bush Intcntl
$911United Airlines
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
7:08 am - 9:10 amHRL  Harlingen Valley Intl-LHR London Heathrow
20h 02m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
9:30 am - 3:44 pmLHR  London Heathrow-HRL Harlingen Valley Intl
36h 14m2 stops Frankfurt am Main Houston George Bush Intcntl
$915United Airlines
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
7:08 am - 9:10 amHRL  Harlingen Valley Intl-LHR London Heathrow
20h 02m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
9:30 am - 3:44 pmLHR  London Heathrow-HRL Harlingen Valley Intl
36h 14m2 stops Frankfurt am Main Houston George Bush Intcntl
$916United Airlines
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
4:25 pm - 10:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
11h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
10:00 am - 7:40 pmLHR  London Heathrow-HRL Harlingen Valley Intl
15h 40m1 stop Houston George Bush Intcntl
$929United Airlines
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
4:25 pm - 10:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
11h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
10:00 am - 7:40 pmLHR  London Heathrow-HRL Harlingen Valley Intl
15h 40m1 stop Houston George Bush Intcntl
$930United Airlines
Tue, Mar 16 - Fri, Mar 26
United Airlines Logo
7:15 am - 10:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
22h 00m1 stop Houston George Bush Intcntl
United Airlines Logo
6:00 pm - 11:04 pmLHR  London Heathrow-HRL Harlingen Valley Intl
34h 04m2 stops Toronto Pearson Intl Houston George Bush Intcntl
$938United Airlines
Tue, Dec 1 - Mon, Jan 25
American Airlines Logo
10:43 am - 6:50 amHRL  Harlingen Valley Intl-LHR London Heathrow
14h 07m1 stop Dallas/Fort Worth
American Airlines Logo
1:50 pm - 10:54 pmLHR  London Heathrow-HRL Harlingen Valley Intl
15h 04m1 stop Dallas/Fort Worth
$1,062American Airlines
Tue, Dec 1 - Mon, Jan 25
American Airlines Logo
10:43 am - 6:50 amHRL  Harlingen Valley Intl-LHR London Heathrow
14h 07m1 stop Dallas/Fort Worth
American Airlines Logo
1:50 pm - 10:54 pmLHR  London Heathrow-HRL Harlingen Valley Intl
15h 04m1 stop Dallas/Fort Worth
$1,063American Airlines
Mon, Dec 21 - Mon, Dec 28
American Airlines Logo
2:47 pm - 8:15 amHRL  Harlingen Valley Intl-LHR London Heathrow
11h 28m1 stop Dallas/Fort Worth
American Airlines Logo
10:05 am - 10:54 pmLHR  London Heathrow-HRL Harlingen Valley Intl
18h 49m1 stop Dallas/Fort Worth
$1,313American Airlines
Booking Insights

Price, demand and travel trends for Harlingen to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Harlingen to London Heathrow Airport?

Round-trip flights from Harlingen to London Heathrow Airport typically range from $920 to $1,159. The lowest price found in the past 5 days was $910, on United Airlines.

What's the cheapest day of the week to fly from Harlingen to London Heathrow Airport?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Harlingen to London Heathrow Airport. It’s 17% cheaper than the average day, while Thursday is the most expensive, with prices 52% higher.

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Key details for Harlingen to London Heathrow Airport flights

Cheapest flight

$646
The most popular month to fly with an average 33% increase in travelers.
One-way flight from Harlingen to London Heathrow Airport

When to book flights from Harlingen to Heathrow

Are your dates flexible? Find out the best times to travel from Harlingen to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Harlingen to London Heathrow Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Harlingen to London Heathrow Airport?

    Only Economy Class is available on flights from Harlingen to London Heathrow Airport.

  • How long is a flight from Harlingen to London Heathrow Airport?

    There are currently no nonstop flights available from Harlingen to London Heathrow Airport. Flights with 1 layover take between 13h 20m and 13h 41m in total, depending on the connection.

  • Do I need a passport to fly from Harlingen to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Harlingen to London Heathrow Airport flight?

    Round-trip flights from Harlingen to London Heathrow Airport range from $920 to $1,159, with an average of $1,098 over the past 12 months. Anything below $920 counts as a good deal.

  • Have flight prices from Harlingen to London Heathrow Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $910 to $3,527. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Harlingen to London Heathrow Airport looking right now?

    One-way fares from Harlingen to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $646, which is 10% below the typical average for this route.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates averaging $39 for economy cars. Top options include:

    • GREEN MOTION
    • DRIVALIA
    • Europcar
    • Alamo
    • Rentacar

  • Which airports can I use when flying from Harlingen to London Heathrow Airport?

    Flights from Harlingen to London Heathrow Airport usually depart from Harlingen Valley Intl (HRL) and arrive at London Heathrow (LHR).

  • Which airports do connecting flights from Harlingen to London Heathrow Airport pass through?

    Connecting flights from Harlingen to London Heathrow Airport most commonly pass through:

    • Dallas/Fort Worth (DFW) - 57% of one-stop connections
    • Houston George Bush Intcntl (IAH) - 43% of one-stop connections

  • Can I save money by using flexible dates for flights from Harlingen to London Heathrow Airport?

    Yes. Flexible dates can save you up to 46% on flights from Harlingen to London Heathrow Airport. Monday is the cheapest departure day at $920 round-trip on average, while Thursday is the most expensive at $1,676, a difference of $756.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Harlingen to London Heathrow Airport?

    Flying via Houston George Bush Intcntl (IAH) gives the shortest average 1-stop total travel time at 13h 20m, compared with 13h 41m via Dallas/Fort Worth (DFW).

  • What is the time difference between Harlingen and London Heathrow Airport?

    London Heathrow Airport is 6 hours ahead of Harlingen (British Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Your guide to booking Harlingen to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average $920, about $756 less than Thursday fares (45% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Harlingen to London Heathrow Airport trip for March. Fares historically average $697 round-trip in that month - typically $979 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

More options for your flight from Harlingen to Heathrow

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