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Cheap flights from Houston George Bush Intcntl Airport to London from £235

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
21 Apr — 28 Apr1
1 adult

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in October or April, booked 35 days in advance, depart on a Monday or Wednesday 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 16 April 2025.

Round-trip from

£439

One-way from

£235

Popular in

June

Cheapest in

October

Average price

£514

Good round-trip deal

£541 or less

Good one-way deal

£310 or less
Iberia
  • Iberia
  • 6/5-28/1
  • Nonstop
  • 19h 55m total
  • Houston to London
14/5
  • 14/5
  • 2 total stops
  • 20h 55m total
  • Houston to London
Highest demand for flights based on searches. 26% potential increase in price (£163 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in April 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 16 April 2025.

Tue 6/515:25IAH - LHR
Nonstop9h 15mIberia
Wed 28/109:30LHR - IAH
Nonstop10h 40mIberia
Deal found 15/4£439
Mon 28/415:50IAH - LHR
1 stop15h 55mVirgin Atlantic
Tue 13/514:45LHR - IAH
1 stop28h 30mVirgin Atlantic
Deal found 15/4£458
Mon 28/421:00IAH - LHR
Nonstop9h 20mFinnair
Tue 13/514:50LHR - IAH
Nonstop10h 25mFinnair
Deal found 15/4£465
Wed 19/1109:30IAH - LHR
1 stop15h 40mAir Canada
Thu 27/1114:30LHR - IAH
1 stop14h 03mAir Canada
Deal found 16/4£468
Wed 7/516:15IAH - LHR
Nonstop9h 25mUnited Airlines
Thu 15/513:40LHR - IAH
Nonstop10h 20mUnited Airlines
Deal found 15/4£472
Mon 12/509:10IAH - LGW
3 stops23h 25mMultiple Airlines
Sat 17/510:00LGW - IAH
1 stop18h 46mMultiple Airlines
Deal found 14/4£473
Wed 7/510:10IAH - LHR
2 stops14h 20mMultiple Airlines
Wed 21/509:30LHR - IAH
1 stop16h 26mMultiple Airlines
Deal found 15/4£474
Wed 7/515:25IAH - LHR
Nonstop9h 15mBritish Airways
Thu 15/514:50LHR - IAH
Nonstop10h 25mBritish Airways
Deal found 15/4£474
Wed 19/1117:07IAH - LHR
1 stop12h 23mAmerican Airlines
Thu 27/1109:30LHR - IAH
Nonstop10h 40mAmerican Airlines
Deal found 16/4£475
Tue 22/406:00IAH - LHR
1 stop18h 45mDelta
Wed 7/511:30LHR - IAH
2 stops18h 29mDelta
Deal found 15/4£477
Wed 14/507:05IAH - LTN
3 stops30h 20mMultiple Airlines
Wed 21/519:00LTN - IAH
2 stops39h 55mMultiple Airlines
Deal found 15/4£478
Mon 15/913:15IAH - LHR
1 stop11h 30mAir France
Wed 24/906:15LHR - IAH
1 stop13h 20mAir France
Deal found 15/4£496

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 16 April 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

Tue 6/5

15:25-06:40

Nonstop9h 15m

London Heathrow

Wed 28/1

09:30-14:10

Nonstop10h 40m

£439

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 28/4

15:50-13:45

1 stop15h 55m

London Heathrow

Tue 13/5

14:45-13:15

1 stop28h 30m

£458

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 28/4

21:00-12:20

Nonstop9h 20m

London Heathrow

Tue 13/5

14:50-19:15

Nonstop10h 25m

£465

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/5

16:15-07:40

Nonstop9h 25m

London Heathrow

Thu 15/5

13:40-18:00

Nonstop10h 20m

£472

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Mon 12/5

09:10-14:35

3 stops23h 25m

London Gatwick

Sat 17/5

10:00-22:46

1 stop18h 46m

£473

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/5

10:10-06:30

2 stops14h 20m

London Heathrow

Wed 21/5

09:30-19:56

1 stop16h 26m

£474

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/5

15:25-06:40

Nonstop9h 15m

London Heathrow

Thu 15/5

14:50-19:15

Nonstop10h 25m

£474

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 7/5

10:00-10:00

1 stop18h 00m

London Heathrow

Thu 15/5

08:30-19:56

2 stops17h 26m

£475

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 6/5

09:36-06:45

1 stop15h 09m

London Heathrow

Wed 28/1

09:00-23:59

2 stops20h 59m

£477

HoustonLondon

IAH - LTN

IAHLTN

Houston George Bush Intcntl

Wed 14/5

07:05-19:25

3 stops30h 20m

London Luton

Wed 21/5

19:00-04:55

2 stops39h 55m

£478

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 56 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 11 April 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 35 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 16 April 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 14% 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 16 April 2025.

The most flights from IAH to LON are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 16 April 2025.
Read through reviews of airlines operating flights from Houston to London, such as Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Iberia is currently your cheapest option to London, with prices starting at £439. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Finnair, with the lowest prices starting at £458 and £465, respectively. These flights start at 28% 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 Iberia. According to our data, you can fly for as low as £287. Users have also found prices from £295 and £298 on Aer Lingus and Turkish 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 (70%), Aer Lingus (70%), Finnair( 70%).

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

    On average you can expect to pay £567 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £281 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £392.

  • 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
Deal
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Wembley
Hayes
Crawley
Southend-on-Sea
Maidstone
Ipswich
Southall
Ilford
Winchester
Folkestone
Dartford
Watford

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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 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£427Average£552FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£439Average£524FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£462Average£752FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£478Average£742FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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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