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Cheap flights from Houston George Bush Intcntl Airport to London from £218

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in September or October, booked 16 days in advance, depart on a Tuesday or Sunday 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 4 November 2025.

Round-trip from

£426

One-way from

£218

Popular in

June

Cheapest in

September

Average price

£540

Good round-trip deal

£520 or less

Good one-way deal

£300 or less
Finnair
  • Finnair
  • 23/11-9/12
  • 1 total stop
  • 22h 41m total
  • Houston to London
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8/12
  • 8/12
  • 2 total stops
  • 23h 22m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£135 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to London (LON).
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Price to beat on a one-way flight from Houston George Bush Intcntl to London (LON).
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Find flight deals from George Bush Intcntl to London

Enter your travel dates to find the best prices.

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 4 November 2025.

Tue 18/1112:35IAH - LHR
1 stop11h 50mVirgin Atlantic
Tue 25/1115:50LHR - IAH
1 stop14h 07mVirgin Atlantic
Deal found 4/11£425
Sun 23/1114:24IAH - LHR
1 stop12h 11mFinnair
Tue 9/1209:35LHR - IAH
Nonstop10h 30mFinnair
Deal found 2/11£426
Mon 24/1114:24IAH - LHR
1 stop13h 36mFinnair
Tue 9/1209:35LHR - IAH
Nonstop10h 30mFinnair
Deal found 3/11£428
Sun 30/1112:10IAH - LHR
1 stop14h 25mIberia
Tue 23/1209:35LHR - IAH
Nonstop10h 30mIberia
Deal found 4/11£429
Wed 3/1216:30IAH - LTN
2 stops24h 35mMultiple Airlines
Fri 12/1205:50LTN - IAH
2 stops21h 54mMultiple Airlines
Deal found 2/11£429
Wed 3/1216:30IAH - STN
2 stops21h 05mMultiple Airlines
Thu 11/1221:30STN - IAH
2 stops30h 14mMultiple Airlines
Deal found 2/11£429
Sat 13/1208:49IAH - LGW
1 stop19h 16mMultiple Airlines
Sun 11/114:10LGW - IAH
1 stop23h 44mMultiple Airlines
Deal found 3/11£429
Wed 3/1216:30IAH - LGW
2 stops21h 25mMultiple Airlines
Thu 11/1221:40LGW - IAH
2 stops30h 04mMultiple Airlines
Deal found 2/11£431
Mon 24/1112:35IAH - LHR
1 stop14h 25mVirgin Atlantic
Tue 9/1206:30LHR - IAH
1 stop13h 00mVirgin Atlantic
Deal found 3/11£432
Sun 23/1107:10IAH - LHR
1 stop19h 20mAir Canada
Tue 9/1206:50LHR - IAH
2 stops20h 49mAir Canada
Deal found 2/11£433
Wed 10/1220:07IAH - LGW
1 stop31h 53mMultiple Airlines
Fri 9/114:00LGW - IAH
1 stop15h 13mMultiple Airlines
Deal found 3/11£433
Sun 23/1116:05IAH - LHR
1 stop15h 40mVirgin Atlantic
Tue 9/1206:30LHR - IAH
1 stop13h 00mVirgin Atlantic
Deal found 2/11£434

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 4 November 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 - STN

IAHSTN

Houston George Bush Intcntl

Wed 3/12

16:30-19:35

2 stops21h 05m

London Stansted

Thu 11/12

21:30-21:44

2 stops30h 14m

£429

HoustonLondon

IAH - LTN

IAHLTN

Houston George Bush Intcntl

Wed 3/12

16:30-23:05

2 stops24h 35m

London Luton

Fri 12/12

05:50-21:39

3 stops21h 49m

£429

HoustonLondon

IAH - STN

IAHSTN

Houston George Bush Intcntl

Tue 2/12

07:10-13:50

3 stops24h 40m

London Stansted

Thu 11/12

07:40-21:39

2 stops19h 59m

£440

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 2/12

12:35-07:50

1 stop13h 15m

London Heathrow

Thu 11/12

06:30-13:30

1 stop13h 00m

£442

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Fri 12/12

08:49-10:00

1 stop19h 11m

London Gatwick

Fri 9/1

14:00-23:13

1 stop15h 13m

£442

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

09:54-07:50

1 stop15h 56m

London Heathrow

Tue 10/3

06:20-14:55

1 stop13h 35m

£448

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 30/11

16:32-10:00

1 stop11h 28m

London Heathrow

Tue 23/12

09:55-17:30

1 stop13h 35m

£448

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 26/11

18:40-11:40

1 stop11h 00m

London Heathrow

Tue 2/12

08:55-17:44

1 stop14h 49m

£454

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Mon 24/11

15:30-08:50

1 stop11h 20m

London City

Tue 9/12

17:05-13:30

1 stop26h 25m

£455

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 9/12

16:00-21:40

2 stops23h 40m

London Heathrow

Mon 12/1

06:40-23:39

2 stops22h 59m

£456

Flights are sorted by cheapest return flights first.

Deals found on 31/10

Showing 1-10 of 60 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 31 October 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 16 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of £177). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £697). 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 4 November 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 45% 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 4 November 2025.

The most flights from IAH to LON are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, 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 4 November 2025.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to London, such as United Airlines, Iberia, andLufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,996 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,996 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,006 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,544 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,494 reviews
United Airlines
7.4
Good
8,996 reviews
Check prices

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.

  • How long is the flight from Houston George Bush Intcntl Airport to London?

    A quick flight from Houston George Bush Intcntl Airport to London can take about 11h 20m. Delta provides one of the quickest options available for as low as £455. Airlines will cover a distance of 4840 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Flying on United Airlines is currently your cheapest option to London, with prices starting at £397. Additional return tickets that might be worth considering are offered by Iberia and Lufthansa, with the lowest prices starting at £436 and £440, respectively. These flights start at 34% lower than the current average price 3 months from now.

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

    The most popular flight routes from Houston George Bush Intcntl Airport to London are Houston George Bush Intcntl - London Heathrow, Houston George Bush Intcntl - London Gatwick and Houston George Bush Intcntl - London City.

  • 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 (85%), Aer Lingus (85%), Finnair( 85%).

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

    On average you can expect to pay £632 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £255 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £436.

  • 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, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of £177). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £697). 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 London?

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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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£397Average£744FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£436Average£527FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£440Average£536FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£458Average£706FlexibilityNo cancel feeOn-time70%
Search British Airways 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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