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Cheap flights from Houston George Bush Intcntl Airport to London from £191

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in October or April, booked 33 days in advance, depart on a Sunday or Monday and return on a Wednesday

Cheap flight deals from George Bush Intcntl to London

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to London (LON). 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

£191

Popular in

June

Cheapest in

October

Average price

£808

Good round-trip deal

£490 or less

Good one-way deal

£274 or less
Lufthansa
  • Lufthansa
  • 3/12-10/12
  • 4 total stops
  • 32h 33m total
  • Houston to London
7/8
  • 7/8
  • 2 total stops
  • 28h 05m total
  • Houston to London
Highest demand for flights based on searches. 25% potential increase in price (£149 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Houston George Bush Intcntl to London (LON).
Price to beat on a one-way flight from Houston George Bush Intcntl to London (LON).

Find flight deals from George Bush Intcntl to London

Cheapest flights from George Bush Intcntl to London
Explore the most affordable flight options available from George Bush Intcntl to London. 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
Wed 10/905:30IAH - LGW
1 stop22h 30mMultiple Airlines
Wed 17/910:55LGW - IAH
2 stops25h 29mMultiple 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 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
Mon 4/812:15IAH - LHR
1 stop12h 30mUnited Airlines
Mon 11/811:25LHR - IAH
1 stop15h 49mUnited Airlines
Deal found 9/7£476
Mon 8/915:35IAH - LCY
1 stop18h 50mLufthansa
Mon 15/919:10LCY - IAH
2 stops27h 59mLufthansa
Deal found 9/7£477
Wed 8/1010:00IAH - LHR
1 stop14h 30mAir Canada
Mon 13/1011:05LHR - IAH
2 stops38h 37mAir Canada
Deal found 10/7£477
Tue 29/715:30IAH - LCY
1 stop11h 20mVirgin Atlantic
Mon 18/819:05LCY - IAH
1 stop24h 10mVirgin Atlantic
Deal found 9/7£478
Tue 9/916:29IAH - LHR
1 stop12h 21mIberia
Tue 16/915:50LHR - IAH
2 stops34h 27mIberia
Deal found 10/7£478
Wed 17/910:33IAH - LGW
2 stops15h 37mAmerican Airlines
Wed 24/912:20LGW - IAH
2 stops17h 36mAmerican Airlines
Deal found 9/7£480
Tue 30/907:20IAH - STN
3 stops22h 40mMultiple Airlines
Wed 15/1018:40STN - IAH
3 stops31h 02mMultiple Airlines
Deal found 9/7£481

Cheapflights Fare Finder

Customise your flight search to find flights from George Bush Intcntl to London 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 George Bush Intcntl Airport to London that are best for you.

Fly from

George Bush Intcntl

Fly to

London

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 - LGW

IAHLGW

Houston George Bush Intcntl

Wed 10/9

05:30-10:00

1 stop22h 30m

London Gatwick

Wed 17/9

10:55-06:24

2 stops25h 29m

£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

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

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 - LCY

IAHLCY

Houston George Bush Intcntl

Mon 8/9

15:35-16:25

1 stop18h 50m

London City

Mon 15/9

19:10-17:09

2 stops27h 59m

£477

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 - LCY

IAHLCY

Houston George Bush Intcntl

Tue 29/7

15:30-08:50

1 stop11h 20m

London City

Mon 18/8

19:05-13:15

1 stop24h 10m

£478

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

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 10/7

Showing 1-10 of 31 results
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Best time to book a flight from George Bush Intcntl to London

Have a flexible travel schedule? Discover the best time to fly to London from George Bush Intcntl 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 George Bush Intcntl Airport to London

How far ahead should I book a flight from Houston George Bush Intcntl Airport to London?

Use this chart to determine the optimal time to book a return flight from George Bush Intcntl to London. Price data was last updated on 27 June 2025.

The price you pay for your flight from Houston George Bush Intcntl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 33 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 George Bush Intcntl Airport to London?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of £112). Flying from Houston George Bush Intcntl Airport to London 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 IAH to LON?

Find hourly flight availability from George Bush Intcntl to London. 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 optimal to fly from Houston George Bush Intcntl Airport to London at midday. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from Houston George Bush Intcntl Airport to London

Explore weekly flight availability from George Bush Intcntl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.

The most flights from IAH to LON are scheduled on a Wednesday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to London, such as Delta, KLM, andSWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

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 George Bush Intcntl to London. 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 George Bush Intcntl Airport to London round-trip?

    Flying on Delta is currently your cheapest option to London, with prices starting at £473. Additional return tickets that might be worth considering are offered by British Airways and United Airlines, with the lowest prices starting at £474 and £476, respectively. These flights start at 20% lower than the current average price 3 months from now.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as £206. Users have also found prices from £317 and £320 on SWISS and United Airlines, respectively.

  • What are the most popular routes from Houston George Bush Intcntl Airport to London?

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to London?

    Before booking your flight to London from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (68%), Aer Lingus (68%), Finnair( 68%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to London?

    On average you can expect to pay £1,952 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £259 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £366.

  • Can I find deals for flights from George Bush Intcntl to London that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to London.

  • Can I find deals for business class flights from George Bush Intcntl to London?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to London 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 George Bush Intcntl Airport to London?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of £112). Flying from Houston George Bush Intcntl Airport to London 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 George Bush Intcntl Airport?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from George Bush Intcntl to London

Discover the top 4 airlines that operate flights from George Bush Intcntl to London. 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£631FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£447Average£506FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£461Average£723FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£465Average£677FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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Users can book flights with no change fees policies with our dedicated filters. Book flights from George Bush Intcntl to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from George Bush Intcntl to London become cheaper?

Yes! Start tracking prices for George Bush Intcntl to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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