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$369+ Cheap flights from Houston to Heathrow (LHR)

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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 74 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Houston to Heathrow

Cheapest flights from Houston to Heathrow
Explore the most affordable flight options available from Houston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 5, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:50 pmIAH - LHR
Nonstop9h 00mBritish Airways
Thu 12/253:25 pmLHR - IAH
Nonstop10h 35mBritish Airways
Deal found 12/3$600
This Delta deal was found by Cheapflights users on 12/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:46 amIAH - LHR
1 stop14h 39mDelta
Thu 12/256:20 amLHR - IAH
1 stop13h 35mDelta
Deal found 12/4$611
This Virgin Atlantic deal was found by Cheapflights users on 12/3. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:40 amIAH - LHR
1 stop18h 25mVirgin Atlantic
Wed 12/248:25 pmLHR - IAH
1 stop23h 05mVirgin Atlantic
Deal found 12/3$612
This Cheapflightsfares deal was found by Cheapflights users on 12/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:28 pmIAH - LHR
1 stop12h 22mBritish Airways
Mon 12/159:35 amLHR - IAH
Nonstop10h 30mBritish Airways
Deal found 12/3$624
This Virgin Atlantic deal was found by Cheapflights users on 12/3. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:27 amIAH - LHR
1 stop18h 38mVirgin Atlantic
Wed 1/78:00 pmLHR - IAH
1 stop21h 57mVirgin Atlantic
Deal found 12/3$627
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:32 pmHOU - LHR
1 stop11h 18mKLM
Thu 12/2510:45 amLHR - HOU
1 stop14h 29mKLM
Deal found 12/2$628
This FlightHub deal was found by Cheapflights users on 12/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmIAH - LHR
1 stop29h 15mMultiple Airlines
Fri 1/99:00 amLHR - IAH
2 stops18h 44mMultiple Airlines
Deal found 12/3$629
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:27 pmIAH - LHR
1 stop29h 23mBritish Airways
Thu 1/158:20 amLHR - IAH
1 stop14h 45mBritish Airways
Deal found 12/3$630
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/238:20 pmHOU - LHR
1 stop28h 30mBritish Airways
Thu 1/158:20 amLHR - HOU
1 stop13h 52mBritish Airways
Deal found 12/3$630
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:36 pmIAH - LHR
1 stop10h 49mDelta
Mon 12/156:30 amLHR - IAH
1 stop13h 00mDelta
Deal found 12/3$632
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:39 amHOU - LHR
1 stop15h 11mDelta
Thu 12/251:00 pmLHR - HOU
2 stops27h 01mDelta
Deal found 12/2$632
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/107:05 pmIAH - LHR
Nonstop9h 10mUnited Airlines
Mon 12/1510:00 amLHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 12/3$633

Find flight deals from Houston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 December 5, 2025.

Round-trip from

$598
(Delta)

One-way from

$369
(Jetabroad)

Popular in

June

Cheapest in

February

Average price

$938
From Houston to London Heathrow
Search Deals
One-way flight from Houston to London Heathrow
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 2,558,603 searches. Data last updated December 5, 2025.
Use the filters below to find and compare flights from Houston to London Heathrow Airport that are best for you.

Fly from

Houston

Fly to

Heathrow

Route

Depart

Return

Price

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/21

4:06 pm-6:30 pm

2 stops20h 24m

London Heathrow

Thu 1/29

6:40 am-11:56 pm

2 stops23h 16m

$600

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 2/11

4:06 pm-6:30 pm

2 stops20h 24m

London Heathrow

Sun 2/22

10:20 am-11:37 pm

2 stops19h 17m

$600

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 1/7

5:45 am-7:05 am

2 stops19h 20m

London Heathrow

Wed 1/14

8:55 am-10:33 pm

2 stops19h 38m

$603

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 1/21

11:09 am-8:05 am

2 stops14h 56m

London Heathrow

Thu 1/29

11:30 am-10:33 pm

2 stops17h 03m

$603

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 1/19

11:09 am-9:00 am

1 stop15h 51m

London Heathrow

Thu 1/29

12:30 pm-10:33 pm

1 stop16h 03m

$605

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Mon 1/12

5:45 am-6:20 am

2 stops18h 35m

London Heathrow

Wed 1/28

4:35 pm-10:21 am

2 stops23h 46m

$609

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 2/11

5:45 am-7:05 am

2 stops19h 20m

London Heathrow

Mon 2/23

5:35 pm-4:28 pm

2 stops28h 53m

$615

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 1/25

5:15 am-8:45 am

1 stop21h 30m

London Heathrow

Tue 2/10

6:30 am-1:30 pm

1 stop13h 00m

$621

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 1/19

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Sun 3/8

7:30 am-6:15 pm

1 stop16h 45m

$622

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 2/4

7:05 pm-10:15 am

Nonstop9h 10m

London Heathrow

Sun 2/8

6:30 am-6:15 pm

1 stop17h 45m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 44 results
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Best time to book a flight from Houston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Houston 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 Houston to London Heathrow Airport

How far ahead should I book a flight from Houston to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Heathrow. Price data was last updated on November 28, 2025.

The price you pay for your flight from Houston to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Houston to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $504). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $861). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to LHR?

Find hourly flight availability from Houston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 5, 2025.

One of the essential ways to save on airfare from Houston to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 22% on airfare.

What is the cheapest day to fly from Houston to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Houston to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston to London Heathrow Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Houston to London Heathrow Airport?

How often are flights from Houston to London delayed?

About 27% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 145 minutes.

What is the most punctual flight time for Houston to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to London flights?

Over the last year, British Airways have had the lowest number of delays on this route, with just 19% of flights being delayed.

The best insider tips for Houston to London Heathrow Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to London Heathrow Airport trip
Airports
IAH

Check security wait times on the IAH Depart tab to manage your schedule efficiently before your flight to London.

Read more about IAHby Evie Carrick
LHR

The Heathrow Express is the fastest way to central London, reaching Paddington Station quickly from the airport.

Read more about LHRby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated December 5, 2025.
Read reviews from past customers who have flown Finnair, United Airlines, and American Airlines from Houston to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,065 reviews
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
American Airlines
7.2
Good
11,043 reviews
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,041 reviews
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,562 reviews
Finnair
7.6
Good
1,334 reviews

Crew

8.1

Comfort

7.4

Food

6.7

Overall

7.6

Boarding

7.6

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from Houston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Houston to London Heathrow Airport?

    Scandinavian Airlines, Delta, and United Airlines can get you from Houston to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 11h 14m. Airlines will cover a distance of 4820 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Houston to London Heathrow Airport round-trip?

    JetBlue, at $101, was found to be the cheapest airline from Houston to London Heathrow Airport.Alternate airlines to your destination round-trip include Air Canada and American Airlines. Users have found that JetBlue is 87% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Houston to London Heathrow Airport one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $221. However, be on the lookout for offers from Lufthansa and United Airlines, as they are both options that can get you from Houston to London Heathrow Airport for a low price.

  • Can I find deals for flights from Houston to Heathrow that include hotel bookings?

    Yes. In addition to deals on Houston to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Heathrow.

  • Can I find deals for business class flights from Houston to Heathrow?

    Yes. Cheapflights offers flight deals from Houston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to London Heathrow Airport?

    Currently, October is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of $504). Flying from Houston to London Heathrow Airport in June is currently the most expensive (average of $861). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Houston to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Houston to Heathrow

Discover the top 10 airlines that operate flights from Houston to Heathrow. 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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$521Average$743FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$522Average$810FlexibilityNo cancel feeOn-time71%
FinnairCheapest$540Average$751FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$559Average$866FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$562Average$897FlexibilityNo cancel feeOn-time69%
IberiaCheapest$579Average$773FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$587Average$874FlexibilityNo cancel feeOn-time72%
DeltaCheapest$607Average$895FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$722Average$1,097FlexibilityNo cancel feeOn-time76%

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