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$782+ Cheap flights from Harlingen, TX (HRL) to the United Kingdom

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — LHR
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Harlingen to United Kingdom

Keep the following information in mind while searching for Harlingen to United Kingdom flight deals. Data was last updated March 28, 2025.

Round-trip from

$782
(American Airlines)

Popular in

June

Cheapest in

April

Average price

$742
From Harlingen Valley Intl to United Kingdom
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Harlingen to United Kingdom

Cheapest flights from Harlingen to United Kingdom
Explore the most affordable flight options available from Harlingen to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:05 pmHRL - LHR
1 stop16h 45mAmerican Airlines
Fri 10/38:20 amLHR - HRL
1 stop15h 43mAmerican Airlines
Deal found 3/27$782
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:00 amHRL - LHR
2 stops17h 30mUnited Airlines
Fri 10/35:40 pmLHR - HRL
2 stops27h 54mUnited Airlines
Deal found 3/27$806
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/112:14 pmHRL - LHR
2 stops14h 26mMultiple Airlines
Sun 5/187:25 amLHR - HRL
2 stops18h 19mMultiple Airlines
Deal found 3/27$863
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/225:10 amHRL - LHR
2 stops21h 25mAir Canada
Sat 7/58:30 amLHR - HRL
2 stops37h 30mAir Canada
Deal found 3/27$1,332

Cheapflights Fare Finder

Customize your flight search to find flights from Harlingen to United Kingdom 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 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Harlingen to the United Kingdom that are best for you.

Fly from

Harlingen

Fly to

United Kingdom

Route

Depart

Return

Price

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 9/24

12:05 pm-10:50 am

1 stop16h 45m

London Heathrow

Fri 10/3

8:20 am-6:03 pm

1 stop15h 43m

$782

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 9/24

7:00 am-6:30 am

2 stops17h 30m

London Heathrow

Fri 10/3

5:40 pm-3:34 pm

2 stops27h 54m

$806

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 5/11

2:14 pm-10:40 am

2 stops14h 26m

London Heathrow

Sun 5/18

7:25 am-7:44 pm

2 stops18h 19m

$863

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 6/22

5:10 am-8:35 am

2 stops21h 25m

London Heathrow

Sat 7/5

8:30 am-4:00 pm

2 stops37h 30m

$1,332

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Best time to book a flight from Harlingen to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Harlingen with our price prediction graph.
Estimated round-trip 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 Harlingen to the United Kingdom

What is the cheapest month to book a flight from Harlingen, Texas to United Kingdom?

Currently, November is the cheapest month in which you can book a flight from Harlingen, Texas to United Kingdom (average of $661). Flying from Harlingen, Texas to United Kingdom in June is currently the most expensive (average of $1,115). 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.

What is the cheapest time of day to fly from HRL to GB?

Find hourly flight availability from Harlingen to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Harlingen, Texas to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in United Kingdom by month

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

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated March 28, 2025.
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
8,986 reviews
United Airlines
7.4
Good
8,603 reviews

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.0

Comfort

7.3

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Harlingen to United Kingdom. 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 United Kingdom?

    If you book a flight to United Kingdom from Harlingen, you will be flying from Valley Intl, which is the city’s only airport. Harlingen Valley Intl (HRL) is located 3.7 mi from the center of Harlingen.

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

    Yes. In addition to deals on Harlingen to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Harlingen to United Kingdom 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 United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Harlingen, Texas to United Kingdom (average of $661). Flying from Harlingen, Texas to United Kingdom in June is currently the most expensive (average of $1,115). 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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Alternative routes for Harlingen to United Kingdom

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Top 2 airlines flying from Harlingen to United Kingdom

Discover the top 2 airlines that operate flights from Harlingen to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$610Average$851FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$751Average$905FlexibilityNo cancel feeOn-time69%
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