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Cheap flights from Harlingen, Texas to London Heathrow Airport from £684

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — LHR
24 Dec — 31 Dec1
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 19 December 2024.

Round-trip from

£684
United Airlines
  • United Airlines
  • 15/1-21/1
  • 3 total stops
  • 57h 57m total
  • Harlingen to London
Search Deals

Find flight deals from Harlingen to Heathrow

Best flights from Harlingen to Heathrow
Discover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Wed 15/112:10HRL - LHR
1 stop16h 40mUnited Airlines
Tue 21/108:30LHR - HRL
2 stops41h 17mUnited Airlines
Deal found 17/12£684
Wed 15/105:44HRL - LHR
1 stop19h 36mAmerican Airlines
Tue 21/113:50LHR - HRL
1 stop15h 05mAmerican Airlines
Deal found 17/12£863
Wed 15/117:22HRL - LHR
2 stops31h 48mMultiple Airlines
Tue 21/119:30LHR - HRL
3 stops34h 06mMultiple Airlines
Deal found 17/12£1,267
Fri 6/609:50HRL - LHR
3 stops18h 10mAir Canada
Sun 15/614:05LHR - HRL
3 stops26h 54mAir Canada
Deal found 17/12£1,398

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 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 15/1

12:10-10:50

1 stop16h 40m

London Heathrow

Tue 21/1

08:30-19:47

2 stops41h 17m

£684

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 15/1

05:44-07:20

1 stop19h 36m

London Heathrow

Tue 21/1

13:50-22:55

1 stop15h 05m

£863

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 15/1

17:22-07:10

2 stops31h 48m

London Heathrow

Tue 21/1

19:30-23:36

3 stops34h 06m

£1,267

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 6/6

09:50-10:00

3 stops18h 10m

London Heathrow

Sun 15/6

14:05-10:59

3 stops26h 54m

£1,398

Flights are sorted by cheapest return flights first.

Deals found on 17/12

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 July is currently the most expensive (average of £160). 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 19 December 2024.
United Airlines
7.4
Good
9,048 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

United Airlines
7.4
Good
9,048 reviews
United Airlines
7.4
Good
9,048 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
9,048 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

Air Canada
7.0
Good
8,391 reviews
United Airlines
7.4
Good
9,048 reviews
Check prices

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 10

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

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 £684. Additional return tickets that might be worth considering are offered by American Airlines and Air Canada, with the lowest prices starting at £863 and £1,398, respectively.

  • 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 July is currently the most expensive (average of £160). 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

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