Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Harlingen, Texas to the United Kingdom from $554

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to the United Kingdom departing on 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Harlingen, Texas to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:36 pm - 8:15 am
HRL
-
LHR
12h 39m
1 stop
American Airlines Logo
4:10 pm - 10:12 am
LHR
-
HRL
23h 02m
1 stop
$661American Airlines
Tue, Mar 10 - Mon, Mar 16
Iberia Logo
10:42 am - 8:15 am
HRL
-
LHR
16h 33m
1 stop
Iberia Logo
8:20 am - 6:16 pm
LHR
-
HRL
14h 56m
1 stop
$662Iberia
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
5:25 pm - 10:15 am
HRL
-
LHR
11h 50m
1 stop
United Airlines Logo
10:30 am - 7:56 pm
LHR
-
HRL
38h 26m
2 stops
$665United Airlines
Tue, Mar 10 - Mon, Mar 16
United Airlines Logo
5:25 pm - 10:15 am
HRL
-
LHR
11h 50m
1 stop
United Airlines Logo
8:00 am - 7:56 pm
LHR
-
HRL
16h 56m
2 stops
$666United Airlines
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
12:10 pm - 2:50 pm
HRL
-
MAN
20h 40m
2 stops
United Airlines Logo
6:00 am - 4:04 pm
MAN
-
HRL
40h 04m
2 stops
$668United Airlines
Wed, Feb 25 - Sun, Mar 1
Iberia Logo
10:47 am - 6:20 am
HRL
-
LHR
13h 33m
1 stop
Iberia Logo
6:10 am - 10:51 pm
LHR
-
HRL
22h 41m
2 stops
$698Iberia
Fri, May 1 - Thu, May 7
United Airlines Logo
12:10 pm - 7:40 am
HRL
-
LHR
13h 30m
1 stop
United Airlines Logo
9:30 am - 11:23 am
LHR
-
HRL
31h 53m
2 stops
$710United Airlines
Fri, May 1 - Thu, May 7
American Airlines Logo
10:42 am - 8:15 am
HRL
-
LHR
16h 33m
1 stop
American Airlines Logo
4:10 pm - 10:12 am
LHR
-
HRL
23h 02m
1 stop
$712American Airlines
Tue, Mar 10 - Mon, Mar 16
Air Canada Logo
9:20 am - 9:35 am
HRL
-
LHR
18h 15m
2 stops
Air Canada Logo
5:40 pm - 11:23 am
LHR
-
HRL
47h 43m
2 stops
$721Air Canada
Fri, May 1 - Thu, May 7
Multiple Airlines Logo
2:47 pm - 10:55 am
HRL
-
LHR
14h 08m
1 stop
Multiple Airlines Logo
12:55 pm - 10:51 pm
LHR
-
HRL
15h 56m
1 stop
$728Multiple Airlines
Fri, May 1 - Thu, May 7

Austrian Airlines flights from Harlingen, Texas to United Kingdom

Our best Austrian Airlines deals on Harlingen, Texas to United Kingdom flight tickets
Austrian Airlines
Jun 20
HRL5:16 pmHarlingen Valley Intl
30h 39m
2 stops
LHR5:55 amLondon Heathrow
Jun 27
LHR9:30 amLondon Heathrow
33h 44m
2 stops
HRL1:14 pmHarlingen Valley Intl
$1,251
Austrian Airlines
Jun 20
HRL5:16 pmHarlingen Valley Intl
32h 24m
1 stop
LHR7:40 amLondon Heathrow
Jun 27
LHR9:30 amLondon Heathrow
33h 44m
2 stops
HRL1:14 pmHarlingen Valley Intl
$1,330

Air Canada flights from Harlingen, Texas to United Kingdom

Our best Air Canada deals on Harlingen, Texas to United Kingdom flight tickets
Air Canada
May 1
HRL9:20 amHarlingen Valley Intl
18h 15m
2 stops
LHR9:35 amLondon Heathrow
May 7
LHR5:40 pmLondon Heathrow
47h 43m
2 stops
HRL11:23 amHarlingen Valley Intl
$721
Air Canada
Jun 30
HRL5:15 amHarlingen Valley Intl
22h 20m
2 stops
LHR9:35 amLondon Heathrow
Jul 15
LHR2:05 pmLondon Heathrow
37h 39m
2 stops
HRL9:44 pmHarlingen Valley Intl
$1,102
Air Canada
Jul 1
HRL5:16 pmHarlingen Valley Intl
34h 44m
2 stops
LHR10:00 amLondon Heathrow
Jul 15
LHR2:05 pmLondon Heathrow
37h 39m
2 stops
HRL9:44 pmHarlingen Valley Intl
$1,143

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas 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, momondo users made 832,500 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Harlingen, Texas to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Tue 3/10

2:36 pm-8:15 am

1 stop12h 39m

London Heathrow

Mon 3/16

4:10 pm-10:12 am

1 stop23h 02m

$661

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 3/18

10:42 am-8:15 am

1 stop16h 33m

London Heathrow

Tue 3/24

8:20 am-6:16 pm

1 stop14h 56m

$662

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Tue 3/10

5:25 pm-10:15 am

1 stop11h 50m

London Heathrow

Mon 3/16

10:30 am-7:56 pm

2 stops38h 26m

$665

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 3/18

5:25 pm-10:15 am

1 stop11h 50m

London Heathrow

Tue 3/24

8:00 am-7:56 pm

2 stops16h 56m

$666

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-4:04 pm

2 stops40h 04m

$668

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 5/1

10:47 am-6:20 am

1 stop13h 33m

London Heathrow

Thu 5/7

6:10 am-10:51 pm

2 stops22h 41m

$698

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 5/1

12:10 pm-7:40 am

1 stop13h 30m

London Heathrow

Thu 5/7

9:30 am-11:23 am

2 stops31h 53m

$710

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Tue 3/10

10:42 am-8:15 am

1 stop16h 33m

London Heathrow

Mon 3/16

4:10 pm-10:12 am

1 stop23h 02m

$712

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 5/1

9:20 am-9:35 am

2 stops18h 15m

London Heathrow

Thu 5/7

5:40 pm-11:23 am

2 stops47h 43m

$721

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 5/1

2:47 pm-10:55 am

1 stop14h 08m

London Heathrow

Thu 5/7

12:55 pm-10:51 pm

1 stop15h 56m

$728

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Harlingen, Texas to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Harlingen, Texas to United Kingdom flights?

You could potentially save up to 2% on your flight if you consider stops on a Harlingen, Texas to United Kingdom flight.

Cheap Harlingen, Texas to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen, Texas to United Kingdom

Fastest flight time

11h 59m

Direct flights

None
The fastest flight from Harlingen, Texas to United Kingdom takes 11h 59m
There are no direct flights from Harlingen, Texas to United Kingdom. There are no popular flight routes from Harlingen, Texas to United Kingdom.
Search flight deals

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to United Kingdom?

    Prices for flights from Harlingen Valley Intl Airport to United Kingdom are updated daily.

  • How old do you have to be to fly from Harlingen Valley Intl Airport to United Kingdom?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Harlingen, Texas to United Kingdom

Compare and see reviews for airlines that fly from Harlingen, Texas to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,008Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Harlingen to United Kingdom?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to United Kingdom for you.

Can I find flights from Harlingen to United Kingdom with flexible booking policies on momondo?

momondo does allow users to show only those flights to United Kingdom from Harlingen which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Harlingen to United Kingdom?

momondo helps you find the best flight between Harlingen and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Harlingen to United Kingdom right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Harlingen to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $332
Flights to Manchesterfrom $383
Flights to Edinburghfrom $381
Flights to Birminghamfrom $405
Flights to Glasgowfrom $377
Flights to Newcastle upon Tynefrom $487
Flights to Belfastfrom $490
Flights to Bristolfrom $483
Flights to Invernessfrom $421
Flights to Liverpoolfrom $482
Flights to Aberdeenfrom $533
Flights to Leedsfrom $462