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Cheap flights from Harlingen, Texas to the United Kingdom from £469

This is the cheapest return 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 15/1. 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
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Find the cheapest flights from Harlingen, Texas to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
15:39 - 20:10HRL-LHR
22h 31m2 stops
Delta Logo
16:35 - 14:39LHR-HRL
28h 04m2 stops
£469Delta
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gio, 15 gen - mer, 21 gen
Delta Logo
16:07 - 06:20HRL-LHR
33h 13m2 stops
Delta Logo
15:50 - 15:12LHR-HRL
28h 22m2 stops
£498Delta
Find Deal
mar, 10 mar - lun, 16 mar
Delta Logo
16:07 - 07:05HRL-LHR
33h 58m1 stop
Delta Logo
16:10 - 15:12LHR-HRL
28h 02m2 stops
£502Delta
Find Deal
mer, 18 mar - mar, 24 mar
Delta Logo
16:07 - 07:05HRL-LHR
33h 58m1 stop
Delta Logo
11:05 - 15:12LHR-HRL
33h 07m1 stop
£503Delta
Find Deal
mer, 18 mar - mar, 24 mar
Iberia Logo
15:22 - 11:40HRL-LHR
14h 18m1 stop
Iberia Logo
18:45 - 14:46LHR-HRL
26h 01m2 stops
£503Iberia
Find Deal
mer, 14 gen - mer, 21 gen
United Airlines Logo
09:20 - 07:10HRL-LHR
15h 50m2 stops
United Airlines Logo
08:30 - 21:59LHR-HRL
19h 29m2 stops
£510United Airlines
Find Deal
mer, 14 gen - mer, 21 gen
Multiple Airlines Logo
11:06 - 12:15HRL-LHR
19h 09m1 stop
Multiple Airlines Logo
15:00 - 23:21LHR-HRL
14h 21m1 stop
£525Multiple Airlines
Find Deal
mer, 14 gen - mer, 21 gen
United Airlines Logo
17:25 - 10:15HRL-LHR
11h 50m1 stop
United Airlines Logo
11:30 - 21:56LHR-HRL
39h 26m2 stops
£526United Airlines
Find Deal
mar, 10 mar - lun, 16 mar
American Airlines Logo
14:45 - 08:15HRL-LHR
12h 30m1 stop
American Airlines Logo
08:20 - 19:36LHR-HRL
16h 16m1 stop
£540American Airlines
Find Deal
mar, 10 mar - lun, 16 mar
United Airlines Logo
07:00 - 10:15HRL-LHR
21h 15m1 stop
United Airlines Logo
09:30 - 21:59LHR-HRL
18h 29m2 stops
£548United Airlines
Find Deal
ven, 16 gen - mar, 20 gen

Iberia flights from Harlingen, Texas to United Kingdom

Our best Iberia deals on Harlingen, Texas to United Kingdom flight tickets
Iberia
14 Jan
HRL15:22Harlingen Valley Intl
14h 18m
1 stop
LHR11:40London Heathrow
21 Jan
LHR18:45London Heathrow
26h 01m
2 stops
HRL14:46Harlingen Valley Intl
£503
Find similar
Iberia
1 Apr
HRL20:06Harlingen Valley Intl
12h 19m
1 stop
LHR14:25London Heathrow
10 Apr
LHR16:25London Heathrow
13h 34m
1 stop
HRL23:59Harlingen Valley Intl
£635
Find similar
Iberia
4 Dec
HRL12:13Harlingen Valley Intl
12h 37m
1 stop
LHR06:50London Heathrow
13 Dec
LHR16:30London Heathrow
23h 08m
1 stop
HRL09:38Harlingen Valley Intl
£687
Find similar

United Airlines flights from Harlingen, Texas to United Kingdom

Our best United Airlines deals on Harlingen, Texas to United Kingdom flight tickets
United Airlines
14 Jan
HRL09:20Harlingen Valley Intl
15h 50m
2 stops
LHR07:10London Heathrow
21 Jan
LHR08:30London Heathrow
19h 29m
2 stops
HRL21:59Harlingen Valley Intl
£510
Find similar
United Airlines
10 Mar
HRL17:25Harlingen Valley Intl
11h 50m
1 stop
LHR10:15London Heathrow
16 Mar
LHR11:30London Heathrow
39h 26m
2 stops
HRL21:56Harlingen Valley Intl
£526
Find similar
United Airlines
16 Jan
HRL07:00Harlingen Valley Intl
21h 15m
1 stop
LHR10:15London Heathrow
20 Jan
LHR09:30London Heathrow
18h 29m
2 stops
HRL21:59Harlingen Valley Intl
£548
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 2 dicembre 2025.
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

gio 15/1

15:39-20:10

2 stops22h 31m

London Heathrow

mer 21/1

16:35-14:39

2 stops28h 04m

£469

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar 10/3

16:07-06:20

2 stops33h 13m

London Heathrow

lun 16/3

15:50-15:12

2 stops28h 22m

£498

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mer 18/3

16:07-07:05

1 stop33h 58m

London Heathrow

mar 24/3

16:10-15:12

2 stops28h 02m

£502

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mer 18/3

16:07-07:05

1 stop33h 58m

London Heathrow

mar 24/3

11:05-15:12

1 stop33h 07m

£503

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mer 14/1

15:22-11:40

1 stop14h 18m

London Heathrow

mer 21/1

18:45-14:46

2 stops26h 01m

£503

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mer 14/1

09:20-07:10

2 stops15h 50m

London Heathrow

mer 21/1

08:30-21:59

2 stops19h 29m

£510

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mer 14/1

11:06-12:15

1 stop19h 09m

London Heathrow

mer 21/1

15:00-23:21

1 stop14h 21m

£525

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar 10/3

17:25-10:15

1 stop11h 50m

London Heathrow

lun 16/3

11:30-21:56

2 stops39h 26m

£526

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar 10/3

14:45-08:15

1 stop12h 30m

London Heathrow

lun 16/3

08:20-19:36

1 stop16h 16m

£540

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

ven 16/1

07:00-10:15

1 stop21h 15m

London Heathrow

mar 20/1

09:30-21:59

2 stops18h 29m

£548

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

12h 31m

Direct flights

None
The fastest flight from Harlingen, Texas to United Kingdom takes 12h 31m
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?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from Harlingen, Texas to United Kingdom?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Harlingen, Texas from United Kingdom. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Harlingen, Texas to United Kingdom with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

It is quick and easy to find Harlingen to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

Yes. All flights to United Kingdom from Harlingen on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Harlingen to United Kingdom.

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.

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1 adult
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