Cheap flights from Houston George Bush Intcntl Airport to London from £210

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in October or February, booked 33 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 16 September 2025.

Round-trip from

£377

One-way from

£210

Popular in

June

Cheapest in

October

Average price

£506

Good round-trip deal

£425 or less

Good one-way deal

£289 or less
Air Canada
  • Air Canada
  • 14/10-21/10
  • 4 total stops
  • 36h 54m total
  • Houston to London
19/11
  • 19/11
  • 3 total stops
  • 27h 30m total
  • Houston to London
Highest demand for flights based on searches. 23% potential increase in price (£131 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in September 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 September 2025.

Wed 1/1017:48IAH - LGW
1 stop34h 12mMultiple Airlines
Wed 8/1014:00LGW - IAH
1 stop27h 51mMultiple Airlines
Deal found 14/9£377
Wed 19/1116:50IAH - LHR
1 stop12h 00mUnited Airlines
Thu 27/1112:05LHR - IAH
Nonstop10h 45mUnited Airlines
Deal found 15/9£378
Wed 15/1020:15IAH - LHR
Nonstop9h 20mUnited Airlines
Thu 30/1006:35LHR - IAH
1 stop15h 35mUnited Airlines
Deal found 15/9£379
Sun 21/911:30IAH - LHR
1 stop13h 45mDelta
Tue 7/1006:15LHR - IAH
2 stops17h 44mDelta
Deal found 13/9£380
Tue 30/915:59IAH - LHR
1 stop15h 31mDelta
Tue 21/1008:40LHR - IAH
2 stops19h 31mDelta
Deal found 14/9£380
Fri 12/1212:17IAH - LGW
1 stop15h 43mMultiple Airlines
Mon 12/114:00LGW - IAH
1 stop15h 13mMultiple Airlines
Deal found 15/9£381
Wed 22/1021:00IAH - LHR
Nonstop9h 20mBritish Airways
Wed 29/1009:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 13/9£382
Tue 30/910:00IAH - LHR
2 stops14h 30mMultiple Airlines
Fri 10/1008:30LHR - IAH
1 stop19h 44mMultiple Airlines
Deal found 13/9£383
Sun 9/1105:15IAH - LHR
1 stop19h 10mDelta
Wed 19/1106:20LHR - IAH
1 stop13h 35mDelta
Deal found 14/9£383
Sun 28/907:00IAH - LHR
1 stop18h 15mDelta
Tue 21/1006:30LHR - IAH
1 stop12h 45mDelta
Deal found 14/9£384
Sat 18/1018:16IAH - LHR
1 stop30h 19mAir Canada
Wed 5/1118:00LHR - IAH
1 stop21h 11mAir Canada
Deal found 15/9£385
Sun 19/1021:40IAH - LHR
Nonstop9h 20mBritish Airways
Thu 30/1009:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 15/9£386

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 September 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 8/10

14:50-09:40

1 stop12h 50m

London Heathrow

Tue 28/10

10:00-15:45

Nonstop10h 45m

£378

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 19/11

11:05-07:05

1 stop14h 00m

London Heathrow

Thu 27/11

08:40-22:30

2 stops19h 50m

£380

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 5/10

21:40-13:00

Nonstop9h 20m

London Heathrow

Tue 28/10

09:35-15:05

Nonstop10h 30m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/10

21:00-12:20

Nonstop9h 20m

London Heathrow

Wed 29/10

09:35-15:05

Nonstop10h 30m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 7/10

15:30-06:40

Nonstop9h 10m

London Heathrow

Thu 23/10

09:25-13:45

Nonstop10h 20m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 22/11

18:13-06:40

1 stop30h 27m

London Heathrow

Wed 3/12

12:05-16:50

Nonstop10h 45m

£386

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Thu 30/10

20:05-10:15

Nonstop9h 10m

London Heathrow

Thu 6/11

06:35-16:10

1 stop15h 35m

£400

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 2/12

08:30-05:55

1 stop15h 25m

London Heathrow

Mon 8/12

07:40-16:10

1 stop14h 30m

£404

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 31/10

14:30-07:05

1 stop11h 35m

London Heathrow

Fri 7/11

06:20-13:55

1 stop13h 35m

£409

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 28/11

11:50-07:10

1 stop13h 20m

London Heathrow

Wed 3/12

12:05-16:50

Nonstop10h 45m

£411

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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 12 September 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 16 September 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 13% 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 September 2025.

The most flights from IAH to LON are scheduled on a Monday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 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 40% 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.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £431.

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 Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 11h 15m.

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 Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 15m.

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 September 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.

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 9h 20m. United Airlines provides one of the quickest options available for as low as £386. 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 Virgin Atlantic is currently your cheapest option to London, with prices starting at £298. Additional return tickets that might be worth considering are offered by United Airlines and Iberia, with the lowest prices starting at £384 and £422, respectively. These flights start at 48% lower than the current average price 3 months from now.

  • 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 (79%), Aer Lingus (79%), Finnair( 79%).

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

    On average you can expect to pay £604 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £274 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £347.

  • 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

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Top 5 airlines flying from George Bush Intcntl to London

Discover the top 5 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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£298Average£463FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£384Average£684FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£422Average£509FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£444Average£695FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£449Average£526FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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