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HRL - LHR

$746 Find cheap flights from Harlingen to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Heathrow departing on 8/26. 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
Wed 6/12
Wed 6/19

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen 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 Harlingen to London, as well as popular online travel agencies
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Cheap flight deals from Harlingen to Heathrow (HRL-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Heathrow 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:27 am - 7:40 amHRL-LHR
18h 13m1 stop
10:35 am - 7:41 pmLHR-HRL
15h 06m1 stop
$746United Airlines
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Mon, Aug 26 - Thu, Sep 19
11:35 am - 11:10 amHRL-LHR
17h 35m2 stops
12:15 pm - 11:15 pmLHR-HRL
17h 00m2 stops
$751United Airlines
Find Deal
Mon, Aug 26 - Thu, Sep 19
5:16 pm - 10:50 amHRL-LHR
12h 34m1 stop
7:40 am - 7:29 pmLHR-HRL
17h 49m2 stops
$825United Airlines
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Sat, Nov 2 - Sat, Nov 9
11:55 am - 7:55 amHRL-LHR
15h 00m2 stops
7:40 am - 7:29 pmLHR-HRL
17h 49m2 stops
$830United Airlines
Find Deal
Sat, Nov 2 - Sat, Nov 9
7:27 am - 7:30 amHRL-LHR
19h 03m1 stop
9:20 am - 11:14 pmLHR-HRL
19h 54m1 stop
$838United Airlines
Find Deal
Sat, Nov 2 - Sat, Nov 9
12:05 pm - 8:00 amHRL-LHR
13h 55m1 stop
7:40 am - 7:13 pmLHR-HRL
17h 33m2 stops
$945American Airlines
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Thu, Jul 18 - Tue, Jul 30
12:05 pm - 9:05 amHRL-LHR
15h 00m2 stops
7:40 am - 7:13 pmLHR-HRL
17h 33m2 stops
$948American Airlines
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Thu, Jul 18 - Tue, Jul 30
7:25 am - 5:55 amHRL-LHR
16h 30m2 stops
12:00 pm - 10:52 pmLHR-HRL
16h 52m2 stops
$954United Airlines
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Tue, May 28 - Mon, Jun 3
10:04 am - 8:00 amHRL-LHR
15h 56m1 stop
8:40 am - 3:43 pmLHR-HRL
13h 03m1 stop
$975American Airlines
Find Deal
Fri, Jul 19 - Wed, Jul 31
5:10 am - 6:30 amHRL-LHR
19h 20m2 stops
9:30 am - 10:49 amLHR-HRL
55h 19m2 stops
$993Air Canada
Find Deal
Fri, Jul 19 - Wed, Jul 31

Good to know

Cheapest flight

$746
Flight from Harlingen to London

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
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 Harlingen to London flights

  • What is the cheapest flight from Harlingen, Texas to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Harlingen, Texas to London Heathrow Airport was $746 for a round-trip ticket.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Harlingen and on arrival in London.

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

    Harlingen airport is called Harlingen Valley Intl and the only airport in London is London Heathrow.

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

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

  • Which airline alliances offer flights from Harlingen to London?

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

  • Which is the best airline for flights from Harlingen to London, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Harlingen to London are United Airlines and American Airlines. With an average price for the route of $873 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $835 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Harlingen 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 Harlingen to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Harlingen 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 Harlingen 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 Harlingen with another airline. Booking your flights between Harlingen and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harlingen 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 Harlingen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Harlingen to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Harlingen 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 Harlingen to Heathrow? 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 10981 reviews
7.1Entertainment
7.2Comfort
8.1Crew
7.7Boarding
6.7Food
Airline reviews

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

8.0 ExcellentAnonymous, May 2024IAH - AKL
Read more about United Airlines reviews

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

I liked everything about the flight. The service was excellent!

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Delayed a day due to snow storm. Was upgraded. That kind of made up for significant delays from FLL to COS with no compensation or acknowledgement.

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

Missed the flight because of them and up geting a rental car

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

Harlingen - London Flights

Departure:

Harlingen (undefined)United States

Destination:

London (LHR)United Kingdom

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