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Cheap flights from Houston to London Heathrow Airport from £194

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LHR
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Houston to London Heathrow are usually found in February or October, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap 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 11 July 2025.

Round-trip from

£472

One-way from

£194

Popular in

June

Cheapest in

February

Average price

£770
Lufthansa
  • Lufthansa
  • 3/12-10/12
  • 4 total stops
  • 32h 33m total
  • Houston to London
6/9
  • 6/9
  • 2 total stops
  • 21h 15m total
  • Houston to London
Highest demand for flights based on searches. 21% potential increase in price (£124 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find 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 11 July 2025.

Wed 3/1210:14IAH - LHR
2 stops14h 56mMultiple Airlines
Wed 10/1211:10LHR - IAH
2 stops17h 37mMultiple Airlines
Deal found 10/7£472
Sat 9/813:40IAH - LHR
2 stops18h 05mDelta
Sat 16/806:30LHR - IAH
1 stop12h 45mDelta
Deal found 10/7£473
Sun 3/812:56HOU - LHR
2 stops16h 29mDelta
Tue 19/809:55LHR - HOU
2 stops18h 36mDelta
Deal found 10/7£473
Sun 14/915:35IAH - LHR
1 stop19h 05mLufthansa
Wed 24/906:30LHR - IAH
2 stops16h 39mLufthansa
Deal found 11/7£474
Wed 10/921:00IAH - LHR
Nonstop9h 20mBritish Airways
Tue 16/914:50LHR - IAH
Nonstop10h 25mBritish Airways
Deal found 10/7£475
Wed 24/913:13HOU - LHR
1 stop11h 32mKLM
Wed 1/1013:05LHR - HOU
1 stop15h 19mKLM
Deal found 10/7£475
Mon 4/812:15IAH - LHR
1 stop12h 30mUnited Airlines
Mon 11/811:25LHR - IAH
1 stop15h 49mUnited Airlines
Deal found 9/7£476
Wed 8/1010:00IAH - LHR
1 stop14h 30mAir Canada
Mon 13/1011:05LHR - IAH
2 stops38h 37mAir Canada
Deal found 10/7£477
Tue 9/916:29IAH - LHR
1 stop12h 21mIberia
Tue 16/915:50LHR - IAH
2 stops34h 27mIberia
Deal found 10/7£478
Tue 9/914:33HOU - LHR
1 stop12h 27mIberia
Wed 17/918:45LHR - HOU
2 stops31h 17mIberia
Deal found 10/7£478
Sun 31/818:30HOU - LHR
1 stop12h 15mBritish Airways
Sun 7/910:30LHR - HOU
1 stop13h 22mBritish Airways
Deal found 10/7£480
Tue 11/1110:05HOU - LHR
2 stops16h 15mVirgin Atlantic
Tue 18/1109:00LHR - HOU
2 stops18h 40mVirgin Atlantic
Deal found 9/7£483

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 11 July 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 3/12

10:14-07:10

2 stops14h 56m

London Heathrow

Wed 10/12

11:10-22:47

2 stops17h 37m

£472

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 9/8

13:40-13:45

2 stops18h 05m

London Heathrow

Sat 16/8

06:30-13:15

1 stop12h 45m

£473

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Sun 3/8

12:56-11:25

2 stops16h 29m

London Heathrow

Tue 19/8

09:55-22:31

2 stops18h 36m

£473

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 6/10

16:49-10:50

1 stop12h 01m

London Heathrow

Sun 19/10

15:30-23:43

1 stop14h 13m

£474

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Wed 24/9

13:13-06:45

1 stop11h 32m

London Heathrow

Wed 1/10

13:05-22:24

1 stop15h 19m

£475

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 4/8

12:15-06:45

1 stop12h 30m

London Heathrow

Mon 11/8

11:25-21:14

1 stop15h 49m

£476

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/10

10:00-06:30

1 stop14h 30m

London Heathrow

Mon 13/10

11:05-19:42

2 stops38h 37m

£477

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/9

16:29-10:50

1 stop12h 21m

London Heathrow

Tue 16/9

15:50-20:17

2 stops34h 27m

£478

HoustonLondon

HOU - LHR

HOULHR

Houston Hobby

Tue 9/9

14:33-09:00

1 stop12h 27m

London Heathrow

Wed 17/9

18:45-20:02

2 stops31h 17m

£478

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 2/10

15:30-10:45

1 stop13h 15m

London Heathrow

Sun 5/10

06:30-13:15

1 stop12h 45m

£478

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 22 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 return 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 return flight from Houston to Heathrow. Price data was last updated on 27 June 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £112). Flying from Houston to London Heathrow Airport in August is currently the most expensive (average of £164). 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 11 July 2025.

It’s typically best to fly out from Houston to London Heathrow Airport in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying at midday, which is usually more expensive.

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 11 July 2025.
Read through reviews of airlines operating flights from Houston to London Heathrow Airport, such as Delta, KLM, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

    Cheapflights users have booked flights from Houston to London Heathrow Airport round-trip from £473. Other airlines that can offer you cheap pricing are British Airways, from £474, and KLM, from £475. These flights start at 21% lower than the current average price 3 months from now.

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

    The cheapet airlines for a one-way flight from Houston to London Heathrow Airport are WestJet (£206), British Airways (£277), and KLM (£289).

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Houston to London Heathrow Airport (average of £112). Flying from Houston to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Folkestone
Southend-on-Sea
Watford
Winchester
Swindon
Maidstone

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Houston to Heathrow

Discover the top 4 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 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£443Average£627FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£447Average£564FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£456Average£709FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£461Average£712FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Houston to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from Houston to Heathrow?

Millions of users choose and trust Cheapflights to book the best flight deals from Houston to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Houston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Houston to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Houston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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