£615+ Flights from London Heathrow Airport to Harlingen, Texas | Cheapflights

Cheap flight deals from Heathrow to Harlingen

Round-trip from	£820
One-way from	£615

Air Canada

Air Canada
30/4-4/5
4 total stops
69h 03m total
London to Harlingen

11/7

11/7
2 total stops
35h 01m total
London to Harlingen

Find flight deals from Heathrow to Harlingen

Cheapest flights from Heathrow to Harlingen
Explore the most affordable flight options available from Heathrow to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Fri 24/1009:30LHR - HRL

2 stops34h 00mAir Canada

Sun 2/1112:00HRL - LHR

2 stops36h 30mAir Canada

Deal found 15/4£932

Fri 24/1009:30LHR - HRL

2 stops19h 16mUnited Airlines

Sun 2/1117:16HRL - LHR

1 stop32h 14mUnited Airlines

Deal found 15/4£944

Sat 25/1010:00LHR - HRL

1 stop15h 33mMultiple Airlines

Sat 1/1105:15HRL - LHR

1 stop21h 15mMultiple Airlines

Deal found 15/4£1,007

Best flights from Heathrow to Harlingen
Discover carefully curated flight deals from Heathrow to Harlingen that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 April 2025.

Wed 30/414:05LHR - HRL

2 stops29h 19mAir Canada

Sun 4/512:16HRL - LHR

2 stops39h 44mAir Canada

Deal found 15/4£820

Wed 30/408:40LHR - HRL

2 stops35h 06mDelta

Sun 4/514:41HRL - LHR

1 stop16h 29mDelta

Deal found 15/4£821

Thu 24/709:30LHR - HRL

2 stops18h 20mUnited Airlines

Sat 9/813:59HRL - LHR

2 stops15h 46mUnited Airlines

Deal found 14/4£1,439

One-way flights from Heathrow to Harlingen
Search for one-way flight options from Heathrow to Harlingen. Find affordable one-way fares based on user searches. Data last updated 15 April 2025.

Fri 11/707:45LHR - HRL

2 stops35h 01mMultiple Airlines

Deal found 15/4£615

Wed 4/608:25LHR - HRL

2 stops17h 06mAmerican Airlines

Deal found 15/4£1,416

Sun 13/717:40LHR - HRL

3 stops28h 20mAir Canada

Deal found 15/4£4,160

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 24/7

09:30-21:50

2 stops18h 20m

Harlingen Valley Intl

Sat 9/8

13:59-11:45

2 stops15h 46m

£1,439

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Best time to book a flight from Heathrow to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Heathrow 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Harlingen

Rainfall in Harlingen by month

In terms of precipitation, rainfall in Harlingen, Texas ranges from 28.0 - 132.0 inches per month. September is typically the wettest month, when rainfall can reach 132.0 mm. January is typically the driest time to visit Harlingen, Texas when rainfall is around 28.0 mm.

Temperature in Harlingen by month

If weather is an important factor for your trip to Harlingen, Texas, 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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

Reviews of airlines servicing Harlingen

8.0

Very Good

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0

Very Good

8.0

Very Good

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8.0

Very Good

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

8.0

Very Good

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.0

Good

8.0

Very Good

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to Harlingen from London Heathrow?
Most people fly into Harlingen Valley Intl (HRL) if they book a flight to Harlingen from London Heathrow. On average, Valley Intl has 0 inbound flights from London Heathrow per day from 0 airlines. Harlingen Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.
What are the cheapest airlines flying from London Heathrow Airport to Harlingen, Texas round-trip?
Flying on Air Canada is currently your cheapest option to Harlingen, Texas, with prices starting at £820. Additional return tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at £821 and £1,439, respectively.
Can I find deals for flights from Heathrow to Harlingen that include hotel bookings?
Yes. In addition to deals on Heathrow to Harlingen flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Harlingen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Harlingen.
Can I find deals for business class flights from Heathrow to Harlingen?
Yes. Cheapflights offers flight deals from Heathrow to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Harlingen from Heathrow today and book when prices fit your budget.

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