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Cheap flights from Harlingen, Texas to London Heathrow Airport from £560

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — LHR
22 Jan — 29 Jan1
1 adult

Cheap flight deals from Harlingen to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) 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 17 January 2025.

Round-trip from

£628
United Airlines
  • United Airlines
  • 14/2-20/2
  • 3 total stops
  • 53h 23m total
  • Harlingen to London
Search Deals

Find flight deals from Harlingen to Heathrow

Cheapest flights from Harlingen to Heathrow
Explore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 26/112:10HRL - LHR
2 stops37h 00mAir Canada
Tue 4/214:30LHR - HRL
2 stops39h 06mAir Canada
Deal found 16/1£560
Sun 26/110:22HRL - LHR
1 stop14h 58mAmerican Airlines
Tue 4/209:25LHR - HRL
1 stop19h 30mAmerican Airlines
Deal found 16/1£608
Fri 14/212:05HRL - LHR
1 stop16h 45mUnited Airlines
Thu 20/213:00LHR - HRL
2 stops36h 38mUnited Airlines
Deal found 17/1£628
Sun 26/105:00HRL - LHR
2 stops19h 30mMultiple Airlines
Tue 4/206:00LHR - HRL
3 stops23h 36mMultiple Airlines
Deal found 16/1£1,047

Find flights from Harlingen to Heathrow within your budget

Customise your flight search to find flights from Harlingen 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 858,174 searches. Data last updated 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 14/2

12:05-10:50

1 stop16h 45m

London Heathrow

Thu 20/2

13:00-19:38

2 stops36h 38m

£628

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 14/2

12:11-07:20

1 stop13h 09m

London Heathrow

Thu 20/2

09:25-00:05

1 stop20h 40m

£646

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 14/2

05:15-07:10

2 stops19h 55m

London Heathrow

Thu 20/2

14:50-20:05

3 stops35h 15m

£1,137

Flights are sorted by cheapest return flights first.

Deals found on 17/1

Best time to book a flight from Harlingen to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Harlingen with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Harlingen to Heathrow

Get recent, data-driven insights about flights from Harlingen to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Harlingen, Texas to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Harlingen, Texas to London Heathrow Airport (average of £112). Flying from Harlingen, Texas to London Heathrow Airport in August is currently the most expensive (average of £161). 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.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 17 January 2025.
United Airlines
7.4
Good
8,969 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

United Airlines
7.4
Good
8,969 reviews
United Airlines
7.4
Good
8,969 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,969 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Related info for your journey

Find useful and relevant information for your journey from Harlingen 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 Harlingen to London Heathrow?

    Located just 3.7 mi from the city center, Harlingen Valley Intl is the airport most travelers will use when flying to London Heathrow from Harlingen. Booking flights from Valley Intl (HRL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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

    Flying on United Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at £628. Another option worth looking into is American Airlines, starting at £646 return.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Harlingen 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.

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

    Currently, January is the cheapest month in which you can book a flight from Harlingen, Texas to London Heathrow Airport (average of £112). Flying from Harlingen, Texas to London Heathrow Airport in August is currently the most expensive (average of £161). 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.

See more FAQs

Travelling to a place near Harlingen?

Book flights to Harlingen if you plan to visit one of these locations
Deal
Hounslow
Gatwick
Milton Keynes
Croydon
Luton
Slough
Ilford
Hayes
Eastbourne
Northampton
Swindon
Maidstone
Winchester
Southend-on-Sea
Wembley
Ipswich
Watford
Crawley
Southall

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Yes, Cheapflights offers price alerts on Harlingen to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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