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Cheap flights from Houston George Bush Intcntl Airport to London from £233

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Round-trip from

£407

One-way from

£233

Popular in

June

Cheapest in

September

Average price

£508

Good round-trip deal

£470 or less

Good one-way deal

£268 or less
29/1-2/2
  • 29/1-2/2
  • 2 total stops
  • 36h 13m total
  • Houston to London
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25/10
  • 25/10
  • 3 total stops
  • 41h 10m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£129 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
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 17 October 2025.

Sun 26/1016:21IAH - LHR
1 stop11h 39mVirgin Atlantic
Tue 11/1112:30LHR - IAH
1 stop14h 41mVirgin Atlantic
Deal found 15/10£407
Tue 4/1116:30IAH - STN
2 stops22h 50mMultiple Airlines
Tue 11/1121:45STN - IAH
2 stops29h 59mMultiple Airlines
Deal found 16/10£418
Tue 4/1116:30IAH - LGW
2 stops22h 35mMultiple Airlines
Tue 11/1121:40LGW - IAH
2 stops30h 04mMultiple Airlines
Deal found 16/10£418
Sun 26/1017:25IAH - LHR
1 stop37h 25mAir Canada
Tue 11/1106:50LHR - IAH
2 stops20h 49mAir Canada
Deal found 15/10£420
Wed 3/1220:54IAH - LGW
2 stops31h 06mMultiple Airlines
Mon 8/1214:00LGW - IAH
1 stop34h 29mMultiple Airlines
Deal found 16/10£424
Sun 26/1013:29IAH - LHR
1 stop13h 21mDelta
Tue 11/1106:20LHR - IAH
1 stop13h 35mDelta
Deal found 15/10£430
Mon 27/1022:45IAH - LHR
Nonstop9h 00mBritish Airways
Wed 19/1109:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 16/10£430
Wed 12/1115:09IAH - LHR
1 stop11h 36mMultiple Airlines
Wed 19/1106:20LHR - IAH
1 stop13h 35mMultiple Airlines
Deal found 15/10£431
Tue 11/1111:50IAH - LHR
1 stop13h 20mMultiple Airlines
Tue 25/1106:50LHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 15/10£432
Fri 14/1111:55IAH - LTN
2 stops22h 20mMultiple Airlines
Fri 21/1105:50LTN - IAH
3 stops21h 54mMultiple Airlines
Deal found 16/10£432
Sat 25/1014:10IAH - LGW
1 stop13h 50mMultiple Airlines
Fri 31/1014:00LGW - IAH
1 stop33h 31mMultiple Airlines
Deal found 15/10£440
Mon 8/1211:20IAH - STN
2 stops29h 20mMultiple Airlines
Tue 16/1207:30STN - IAH
2 stops20h 09mMultiple Airlines
Deal found 15/10£442

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 17 October 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 - LGW

IAHLGW

Houston George Bush Intcntl

Thu 29/1

07:00-10:00

1 stop21h 00m

London Gatwick

Mon 2/2

14:00-23:13

1 stop15h 13m

£407

HoustonLondon

IAH - LTN

IAHLTN

Houston George Bush Intcntl

Fri 14/11

11:55-16:15

2 stops22h 20m

London Luton

Fri 21/11

05:50-21:44

3 stops21h 54m

£432

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 12/11

15:09-08:45

1 stop11h 36m

London Heathrow

Wed 19/11

06:20-13:55

1 stop13h 35m

£433

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 19/11

12:30-06:20

1 stop11h 50m

London Heathrow

Mon 24/11

20:25-13:30

1 stop23h 05m

£434

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Thu 15/1

18:42-10:00

1 stop33h 18m

London Gatwick

Sat 24/1

14:00-08:42

1 stop24h 42m

£437

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

12:55-10:15

1 stop15h 20m

London Heathrow

Tue 10/3

06:20-14:55

1 stop13h 35m

£439

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 30/11

16:32-10:00

1 stop11h 28m

London Heathrow

Tue 23/12

08:20-15:40

1 stop13h 20m

£439

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 12/11

17:00-11:40

1 stop12h 40m

London Heathrow

Wed 19/11

09:00-23:57

2 stops20h 57m

£441

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 19/1

07:15-07:50

1 stop18h 35m

London Heathrow

Thu 29/1

08:55-23:59

2 stops21h 04m

£446

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 9/2

07:15-07:50

1 stop18h 35m

London Heathrow

Mon 16/2

17:35-13:55

1 stop26h 20m

£448

Flights are sorted by cheapest return flights first.

Deals found on 16/10

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 10 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 £173). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £681). 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 17 October 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 17 October 2025.

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

How much does it cost for a return flight from Houston George Bush Intcntl Airport to London?

What’s the top stopover airport for flights from Houston George Bush Intcntl Airport to London?

Share of one-stop return flights from Houston George Bush Intcntl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Boston (BOS) – chosen by Cheapflights users on 60% of one-stop itineraries from Houston George Bush Intcntl Airport to London on Cheapflights.

What’s the cheapest stopover airport for flights from Houston George Bush Intcntl Airport to London?

Average return fare for one-stop flights from Houston George Bush Intcntl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Montreal (YUL) is the most affordable one-stop option, with an average return flight price of £478.

What’s the fastest stopover option from Houston George Bush Intcntl Airport to London?

Shortest average travel time for one-stop one-way flights from Houston George Bush Intcntl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 11h 35m.

Which airport typically offers the quickest stopover for flights from Houston George Bush Intcntl Airport to London?

Average stopover duration for one-stop one-way flights from Houston George Bush Intcntl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 2h 58m.

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 17 October 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
8,983 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,983 reviews
United Airlines
7.4
Good
8,983 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Iberia
7.0
Good
2,994 reviews
United Airlines
7.4
Good
8,983 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
7,498 reviews
United Airlines
7.4
Good
8,983 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,459 reviews
United Airlines
7.4
Good
8,983 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 50m. Virgin Atlantic provides one of the quickest options available for as low as £434. Airlines will cover a distance of 4820 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 £389. Additional return tickets that might be worth considering are offered by Iberia and Lufthansa, with the lowest prices starting at £427 and £430, respectively. These flights start at 34% 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 JetBlue. According to our data, you can fly for as low as £256. Users have also found prices from £259 and £311 on WestJet and Lufthansa, respectively.

  • 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 (88%), Aer Lingus (88%), Finnair( 88%).

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

    On average you can expect to pay £608 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £182 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £430.

  • 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 £173). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £681). 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.

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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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£389Average£706FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£427Average£515FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£430Average£525FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£448Average£687FlexibilityNo 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.

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