$644+ Cheap flights from Harlingen (HRL) to Heathrow (LHR)
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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — LHR
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Harlingen to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Harlingen to Heathrow
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Best
Last-minute
One-way
Cheapest flights from Harlingen to HeathrowExplore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Iberia deal was found by Cheapflights users on 10/21. 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 11/2510:43 am -
1 stop15h 32m
Fri 12/47:30 am -
2 stops21h 24m
Deal found 10/21![Iberia logo]()
$909
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:05 am -
2 stops19h 25m
Fri 12/43:00 pm -
2 stops28h 25m
Deal found 10/21![Air Canada logo]()
$945
This United Airlines deal was found by Cheapflights users on 10/22. 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 10/297:10 am -
1 stop22h 05m
Thu 11/56:35 am -
2 stops19h 12m
Deal found 10/22![United Airlines logo]()
$1,019
This Travelocity deal was found by Cheapflights users on 10/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:40 am -
1 stop18h 20m
Thu 11/58:20 am -
1 stop15h 51m
Deal found 10/22![Iberia logo]()
$1,043
This Air Canada deal was found by Cheapflights users on 10/20. 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.
Mon 11/165:05 am -
2 stops20h 05m
Wed 11/183:00 pm -
2 stops34h 47m
Deal found 10/20![Air Canada logo]()
$1,212
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 11/167:10 am -
1 stop21h 05m
Wed 11/1810:00 am -
1 stop18h 48m
Deal found 10/20![United Airlines logo]()
$1,224
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/225:25 pm -
2 stops21h 10m
Sun 11/293:00 pm -
2 stops34h 47m
Deal found 10/25![United Airlines logo]()
$1,282
Best flights from Harlingen to HeathrowDiscover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Iberia deal was found by Cheapflights users on 10/25. 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.
Tue 2/2310:44 am -
1 stop14h 06m
Thu 3/46:15 am -
2 stops22h 40m
Deal found 10/25![Iberia logo]()
$886
This United Airlines deal was found by Cheapflights users on 10/25. 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 2/242:10 pm -
2 stops19h 40m
Thu 3/47:30 am -
2 stops21h 34m
Deal found 10/25![United Airlines logo]()
$901
This Air Canada deal was found by Cheapflights users on 10/21. 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.
Mon 11/165:05 am -
2 stops20h 05m
Wed 11/186:00 pm -
2 stops34h 48m
Deal found 10/21![Air Canada logo]()
$1,212
This United Airlines deal was found by Cheapflights users on 10/25. 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 2/237:08 am -
2 stops17h 32m
Thu 3/49:30 am -
2 stops19h 34m
Deal found 10/25![United Airlines logo]()
$903
This Iberia deal was found by Cheapflights users on 10/21. 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 11/2510:43 am -
1 stop15h 32m
Fri 12/47:30 am -
2 stops21h 24m
Deal found 10/21![Iberia logo]()
$909
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 11/167:10 am -
1 stop21h 05m
Wed 11/1810:00 am -
1 stop18h 48m
Deal found 10/21![United Airlines logo]()
$1,224
Last-minute flights from Harlingen to HeathrowDiscover last-minute flight deals from Harlingen to Heathrow. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Heathrow. Data last updated October 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. 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 10/297:10 am -
1 stop22h 05m
Thu 11/56:35 am -
2 stops19h 12m
Deal found 10/22![United Airlines logo]()
$1,019
This Travelocity deal was found by Cheapflights users on 10/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:40 am -
1 stop18h 20m
Thu 11/58:20 am -
1 stop15h 51m
Deal found 10/22![Iberia logo]()
$1,043
This Air Canada deal was found by Cheapflights users on 10/20. 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.
Mon 11/165:05 am -
2 stops20h 05m
Wed 11/183:00 pm -
2 stops34h 47m
Deal found 10/20![Air Canada logo]()
$1,212
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 11/167:10 am -
1 stop21h 05m
Wed 11/1810:00 am -
1 stop18h 48m
Deal found 10/20![United Airlines logo]()
$1,224
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/225:25 pm -
2 stops21h 10m
Sun 11/293:00 pm -
2 stops34h 47m
Deal found 10/25![United Airlines logo]()
$1,282
This Iberia deal was found by Cheapflights users on 10/21. 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 11/2510:43 am -
1 stop15h 32m
Fri 12/47:30 am -
2 stops21h 24m
Deal found 10/21![Iberia logo]()
$909
This Booking.com deal was found by Cheapflights users on 10/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:05 am -
2 stops19h 25m
Fri 12/43:00 pm -
2 stops28h 25m
Deal found 10/21![Air Canada logo]()
$945
One-way flights from Harlingen to HeathrowSearch for one-way flight options from Harlingen to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Harlingen to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/1312:00 pm -
2 stops21h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$644
This Justfly.com deal was found by Cheapflights users on 10/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/137:15 am -
3 stops17h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Air Canada logo]()
$654
Find flight deals from Harlingen to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $886 (Iberia) |
One-way from | $646 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Harlingen to Heathrow 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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Harlingen to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Sun 12/13
12:00 pm-3:50 pm
2 stops21h 50m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$644
Quickest round-trip
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Sun 12/13
7:15 am-7:10 am
3 stops17h 55m
London Heathrow
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$654
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Tue 2/23
10:44 am-6:50 am
1 stop14h 06m
London Heathrow
Thu 3/4
6:15 am-10:55 pm
2 stops22h 40m
$886
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Wed 2/24
2:10 pm-3:50 pm
2 stops19h 40m
London Heathrow
Thu 3/4
7:30 am-11:04 pm
2 stops21h 34m
$901
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Tue 2/23
7:08 am-6:40 am
2 stops17h 32m
London Heathrow
Thu 3/4
9:30 am-11:04 pm
2 stops19h 34m
$903
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Wed 11/25
10:43 am-8:15 am
1 stop15h 32m
London Heathrow
Fri 12/4
7:30 am-10:54 pm
2 stops21h 24m
$909
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Mon 11/16
5:05 am-7:10 am
2 stops20h 05m
London Heathrow
Wed 11/18
6:00 pm-10:48 pm
2 stops34h 48m
$1,212
HarlingenLondon
HRL Harlingen Valley Intl - LHR London Heathrow
HRLLHR
Harlingen Valley Intl
Mon 11/16
7:10 am-10:15 am
1 stop21h 05m
London Heathrow
Wed 11/18
10:00 am-10:48 pm
1 stop18h 48m
$1,224
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Harlingen-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harlingen-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Harlingen to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Harlingen with our price prediction graph.
HRL-LHR
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.
Related info for your journey
Find useful and relevant information for your journey from Harlingen to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
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Wembley
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Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Kingston upon Thames
Chipping Norton
Slough
Eastbourne
Stansted
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Luton
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