What airlines fly to London?

British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to London from Harlingen, Texas according to our data. British Airways is the first choice among our users, with 42% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Harlingen Valley Intl Airport to London?

Prices for flights from Harlingen Valley Intl Airport to London are refreshed on a daily basis.

How old do you have to be to fly from Harlingen Valley Intl Airport to London?

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 London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$621 Cheap Flights from Harlingen to London in 2025/26

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Find the cheapest flights from Harlingen, Texas to London

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3:39 pm - 8:10 pmHRL-LHR

22h 31m2 stops

11:05 am - 2:39 pmLHR-HRL

33h 34m1 stop

$621Delta

Find Deal

jue., ene. 15 - mié., ene. 21

4:07 pm - 6:20 amHRL-LHR

33h 13m2 stops

3:50 pm - 3:12 pmLHR-HRL

28h 22m2 stops

$659Delta

Find Deal

mar., mar. 10 - lun., mar. 16

4:07 pm - 7:05 amHRL-LHR

33h 58m1 stop

4:10 pm - 3:12 pmLHR-HRL

28h 02m2 stops

$664Delta

Find Deal

mié., mar. 18 - mar., mar. 24

4:07 pm - 7:05 amHRL-LHR

33h 58m1 stop

11:05 am - 3:12 pmLHR-HRL

33h 07m1 stop

$665Delta

Find Deal

mié., mar. 18 - mar., mar. 24

3:22 pm - 11:40 amHRL-LHR

14h 18m1 stop

6:45 pm - 2:46 pmLHR-HRL

26h 01m2 stops

$666Iberia

Find Deal

mié., ene. 14 - mié., ene. 21

9:20 am - 7:10 amHRL-LHR

15h 50m2 stops

8:30 am - 9:59 pmLHR-HRL

19h 29m2 stops

$675United Airlines

Find Deal

mié., ene. 14 - mié., ene. 21

11:06 am - 12:15 pmHRL-LHR

19h 09m1 stop

3:00 pm - 11:21 pmLHR-HRL

14h 21m1 stop

$694Multiple Airlines

Find Deal

mié., ene. 14 - mié., ene. 21

5:25 pm - 10:15 amHRL-LHR

11h 50m1 stop

11:30 am - 9:56 pmLHR-HRL

39h 26m2 stops

$696United Airlines

Find Deal

mar., mar. 10 - lun., mar. 16

2:45 pm - 8:15 amHRL-LHR

12h 30m1 stop

8:20 am - 7:36 pmLHR-HRL

16h 16m1 stop

$714American Airlines

Find Deal

mar., mar. 10 - lun., mar. 16

7:00 am - 10:15 amHRL-LHR

21h 15m1 stop

9:30 am - 9:59 pmLHR-HRL

18h 29m2 stops

$725United Airlines

Find Deal

vie., ene. 16 - mar., ene. 20

Iberia flights from Harlingen, Texas to London

Our best Iberia deals on Harlingen, Texas to London flight tickets

Iberia

Jan 14

HRL3:22 pmHarlingen Valley Intl

14h 18m

1 stop

LHR11:40 amLondon Heathrow

Jan 21

LHR6:45 pmLondon Heathrow

26h 01m

2 stops

HRL2:46 pmHarlingen Valley Intl

$666

Find similar

Iberia

Apr 1

HRL8:06 pmHarlingen Valley Intl

12h 19m

1 stop

LHR2:25 pmLondon Heathrow

Apr 10

LHR4:25 pmLondon Heathrow

13h 34m

1 stop

HRL11:59 pmHarlingen Valley Intl

$840

Find similar

Iberia

Dec 4

HRL12:13 pmHarlingen Valley Intl

12h 37m

1 stop

LHR6:50 amLondon Heathrow

Dec 13

LHR4:30 pmLondon Heathrow

23h 08m

1 stop

HRL9:38 amHarlingen Valley Intl

$909

Find similar

United Airlines flights from Harlingen, Texas to London

Our best United Airlines deals on Harlingen, Texas to London flight tickets

United Airlines

Jan 14

HRL9:20 amHarlingen Valley Intl

15h 50m

2 stops

LHR7:10 amLondon Heathrow

Jan 21

LHR8:30 amLondon Heathrow

19h 29m

2 stops

HRL9:59 pmHarlingen Valley Intl

$675

Find similar

United Airlines

Mar 10

HRL5:25 pmHarlingen Valley Intl

11h 50m

1 stop

LHR10:15 amLondon Heathrow

Mar 16

LHR11:30 amLondon Heathrow

39h 26m

2 stops

HRL9:56 pmHarlingen Valley Intl

$696

Find similar

United Airlines

Jan 16

HRL7:00 amHarlingen Valley Intl

21h 15m

1 stop

LHR10:15 amLondon Heathrow

Jan 20

LHR9:30 amLondon Heathrow

18h 29m

2 stops

HRL9:59 pmHarlingen Valley Intl

$725

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

jue. 1/15

3:39 pm-8:10 pm

2 stops22h 31m

London Heathrow

mié. 1/21

11:05 am-2:39 pm

1 stop33h 34m

$621

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar. 3/10

4:07 pm-6:20 am

2 stops33h 13m

London Heathrow

lun. 3/16

3:50 pm-3:12 pm

2 stops28h 22m

$659

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mié. 3/18

4:07 pm-7:05 am

1 stop33h 58m

London Heathrow

mar. 3/24

4:10 pm-3:12 pm

2 stops28h 02m

$664

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mié. 3/18

4:07 pm-7:05 am

1 stop33h 58m

London Heathrow

mar. 3/24

11:05 am-3:12 pm

1 stop33h 07m

$665

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mié. 1/14

3:22 pm-11:40 am

1 stop14h 18m

London Heathrow

mié. 1/21

6:45 pm-2:46 pm

2 stops26h 01m

$666

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mié. 1/14

9:20 am-7:10 am

2 stops15h 50m

London Heathrow

mié. 1/21

8:30 am-9:59 pm

2 stops19h 29m

$675

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mié. 1/14

11:06 am-12:15 pm

1 stop19h 09m

London Heathrow

mié. 1/21

3:00 pm-11:21 pm

1 stop14h 21m

$694

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar. 3/10

5:25 pm-10:15 am

1 stop11h 50m

London Heathrow

lun. 3/16

11:30 am-9:56 pm

2 stops39h 26m

$696

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

mar. 3/10

2:45 pm-8:15 am

1 stop12h 30m

London Heathrow

lun. 3/16

8:20 am-7:36 pm

1 stop16h 16m

$714

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

vie. 1/16

7:00 am-10:15 am

1 stop21h 15m

London Heathrow

mar. 1/20

9:30 am-9:59 pm

2 stops18h 29m

$725

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Harlingen, Texas to London

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

Prices

Airlines

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Harlingen, Texas to London is on a Saturday. Travelers who choose to depart for London on a Saturday will often find tickets for as low as $798. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,560. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Harlingen, Texas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $798 when looking at flights departing in the afternoon. Flights to London are more costly in the morning, with an average ticket price of $919. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

When to book flights from Harlingen, Texas to London

Are you open to changing your travel dates? Check out the ideal times to fly from Harlingen, Texas to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Harlingen, Texas to London (HRL to LON) flight deals and tips

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

Fastest flight time	12h 19m
Direct flights	None

The fastest flight from Harlingen, Texas to London takes 12h 19m

There are no direct flights from Harlingen, Texas to London. There are no popular flight routes from Harlingen, Texas to London.

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How far is Harlingen Valley Intl to London by plane?
Harlingen Valley Intl and London are 5125.1 mi apart from one another. Flights usually cover this in 11h 47m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Harlingen Valley Intl Airport to London?
Prices for flights from Harlingen Valley Intl Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Harlingen Valley Intl Airport to London?
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 London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Harlingen, Texas to London?
momondo data reveals that the most frequently booked airline on the route from Harlingen, Texas to London is American Airlines, representing 56% of all bookings. The subsequent popular airline is United Airlines at 44%.

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Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Romford

Watford

Ilford

Cobham

Folkestone

Uxbridge

Stansted

Chelmsford

Why use momondo?

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

Finding the right flight to London from Harlingen is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to London 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 London?

momondo helps you find the best flight between Harlingen and London 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 London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Harlingen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London trip

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Cheap flights from Harlingen, Texas to London from $621

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to London departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Harlingen, Texas to London

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Cheap one-way flights

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Iberia flights from Harlingen, Texas to London

Our best Iberia deals on Harlingen, Texas to London flight tickets

United Airlines flights from Harlingen, Texas to London

Our best United Airlines deals on Harlingen, Texas to London flight tickets

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How to get the cheapest flight ticket from Harlingen, Texas to London

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

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

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

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

What airlines fly to London?

When to book flights from Harlingen, Texas to London

Cheap Harlingen, Texas to London (HRL to LON) flight deals and tips

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

Fastest flight time

Direct flights

How far is Harlingen Valley Intl to London by plane?

When did momondo last update prices for flights from Harlingen Valley Intl Airport to London?

How old do you have to be to fly from Harlingen Valley Intl Airport to London?

What documentation or ID do you need to fly to London?

What is the most popular airline from Harlingen, Texas to London?

Traveling to a place near London?

Why use momondo?

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

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

How can momondo help me find flights from Harlingen to London?

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

An easier way to manage your London 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London