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$554+ Cheap flights from Harlingen, TX (HRL) to the United Kingdom

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — LHR
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap 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 February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/4. 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.
Tue 3/105:25 pm
HRL
-
LHR
1 stop11h 50m
United Airlines
Mon 3/161:00 pm
LHR
-
HRL
2 stops32h 04m
United Airlines
Deal found 2/4$647
This Air Canada deal was found by Cheapflights users on 2/3. 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.
Tue 3/109:20 am
HRL
-
LHR
2 stops18h 10m
Air Canada
Mon 3/166:00 pm
LHR
-
HRL
2 stops32h 56m
Air Canada
Deal found 2/3$655
This Iberia deal was found by Cheapflights users on 2/3. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:45 pm
HRL
-
LHR
1 stop12h 30m
Iberia
Tue 3/248:20 am
LHR
-
HRL
1 stop14h 56m
Iberia
Deal found 2/3$662
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/1812:10 pm
HRL
-
LHR
1 stop14h 20m
United Airlines
Tue 3/2412:05 pm
LHR
-
HRL
1 stop14h 51m
United Airlines
Deal found 2/2$664
This Iberia deal was found by Cheapflights users on 2/3. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 am
HRL
-
LHR
1 stop20h 05m
Iberia
Thu 5/76:10 am
LHR
-
HRL
2 stops22h 41m
Iberia
Deal found 2/3$698
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Tue 3/1010:42 am
HRL
-
LHR
1 stop16h 33m
American Airlines
Mon 3/164:10 pm
LHR
-
HRL
1 stop23h 02m
American Airlines
Deal found 2/3$712
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 3/197:00 am
HRL
-
MAN
2 stops24h 20m
United Airlines
Thu 3/266:00 am
MAN
-
HRL
2 stops42h 56m
United Airlines
Deal found 2/1$728
This United Airlines deal was found by Cheapflights users on 2/3. 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 2/2512:10 pm
HRL
-
MAN
2 stops20h 40m
United Airlines
Sun 3/16:00 am
MAN
-
HRL
2 stops21h 59m
United Airlines
Deal found 2/3$866

Find 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 February 5, 2026.

Round-trip from

$647
(United Airlines)

One-way from

$554
(United Airlines)
From Harlingen Valley Intl to United Kingdom
Search Deals
One-way flight from Harlingen Valley Intl to United Kingdom
Search Deals

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 February 5, 2026.
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

Tue 3/10

12:10 pm-10:15 am

1 stop17h 05m

London Heathrow

Mon 3/16

1:00 pm-4:04 pm

2 stops32h 04m

$647

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 3/18

2:45 pm-8:15 am

1 stop12h 30m

London Heathrow

Tue 3/24

8:20 am-6:16 pm

1 stop14h 56m

$662

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 3/18

12:10 pm-7:30 am

1 stop14h 20m

London Heathrow

Tue 3/24

12:05 pm-9:56 pm

1 stop14h 51m

$664

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 5/1

6:00 am-8:05 am

1 stop20h 05m

London Heathrow

Thu 5/7

6:10 am-10:51 pm

2 stops22h 41m

$698

HarlingenManchester

HRL - MAN

HRLMAN

Harlingen Valley Intl

Wed 2/25

12:10 pm-2:50 pm

2 stops20h 40m

Manchester

Sun 3/1

6:00 am-9:59 pm

2 stops21h 59m

$866

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 3/13

9:20 am-8:25 am

2 stops18h 05m

$554

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 5/20

8:03 pm-2:25 pm

1 stop12h 22m

$846

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 5/6

8:03 pm-2:25 pm

1 stop12h 22m

$3,905

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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
No data available for this route at this time. Please check back soon.

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 February 5, 2026.
Get a feel of what it's like to fly with United Airlines from Harlingen to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • How long is the flight from Harlingen, Texas to United Kingdom?

    Departing from Harlingen, Texas to United Kingdom will take you 12h 30m. There are 5109 mi between Harlingen, Texas and United Kingdom. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

See more FAQs

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Alternative routes for Harlingen to United Kingdom

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Top airline flying from Harlingen to United Kingdom

Discover the top airline 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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,008Average$1,158FlexibilityNo cancel feeOn-time69%

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