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Cheap flights from Houston George Bush Intcntl Airport to London from £277

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
26 Jan — 2 Feb1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in October or August, booked 85 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap 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 27 December 2025.

Wed 31/1216:20IAH - LHR
Nonstop9h 10mAustrian Airlines
Fri 9/118:00LHR - IAH
1 stop30h 46mAustrian Airlines
Deal found 25/12£539
Wed 31/1216:30IAH - LCY
1 stop19h 10mLufthansa
Thu 8/118:15LCY - IAH
2 stops26h 25mLufthansa
Deal found 25/12£598
Fri 26/1219:45IAH - LHR
1 stop29h 10mJetBlue
Tue 30/1209:20LHR - IAH
1 stop15h 28mJetBlue
Deal found 24/12£598
Wed 31/1217:05IAH - LHR
1 stop12h 10mLufthansa
Thu 8/119:30LHR - IAH
2 stops25h 10mLufthansa
Deal found 25/12£599
Mon 29/1216:20IAH - LHR
Nonstop9h 10mMultiple Airlines
Fri 9/112:05LHR - IAH
Nonstop10h 45mMultiple Airlines
Deal found 25/12£663
Mon 29/1211:55IAH - LHR
1 stop14h 00mLufthansa
Fri 9/110:00LHR - IAH
Nonstop10h 45mLufthansa
Deal found 26/12£670
Tue 30/1216:20IAH - LHR
Nonstop9h 10mLufthansa
Sat 17/109:30LHR - IAH
1 stop14h 45mLufthansa
Deal found 25/12£689
Wed 31/1211:55IAH - LHR
2 stops16h 50mLufthansa
Fri 9/110:25LHR - IAH
1 stop18h 33mLufthansa
Deal found 25/12£690
Wed 31/1215:55IAH - LGW
2 stops19h 55mSWISS
Thu 8/118:40LGW - IAH
2 stops26h 00mSWISS
Deal found 25/12£725
Tue 30/1215:30IAH - LCY
1 stop11h 20mVirgin Atlantic
Sat 17/110:00LCY - IAH
2 stops19h 56mVirgin Atlantic
Deal found 25/12£761
Mon 29/1216:30IAH - LCY
1 stop19h 10mLufthansa
Fri 9/109:55LCY - IAH
1 stop14h 20mLufthansa
Deal found 26/12£770
Tue 30/1207:26IAH - LCY
2 stops24h 39mBritish Airways
Sat 17/108:40LCY - IAH
2 stops19h 50mBritish Airways
Deal found 25/12£772

Find 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 27 December 2025.

Round-trip from

£463

One-way from

£277

Popular in

June

Cheapest in

October

Average price

£727

Good round-trip deal

£480 or less

Good one-way deal

£325 or less
Lufthansa
  • Lufthansa
  • 11/2-23/2
  • 2 total stops
  • 36h 40m total
  • Houston to London
Search Deals
10/3
  • 10/3
  • 2 total stops
  • 32h 00m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to London (LON).
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to London (LON).
Search Deals

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 27 December 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 21/1

12:10-14:10

2 stops20h 00m

London Stansted

Tue 27/1

20:25-21:44

3 stops31h 19m

£464

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 11/1

12:20-10:30

2 stops16h 10m

London Heathrow

Tue 27/1

06:30-13:30

1 stop13h 00m

£468

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

16:20-07:30

Nonstop9h 10m

London Heathrow

Tue 10/3

09:30-19:15

1 stop14h 45m

£469

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 24/3

17:20-07:30

Nonstop9h 10m

London Heathrow

Wed 1/4

06:55-16:35

1 stop15h 40m

£473

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 23/2

12:42-08:45

2 stops14h 03m

London Heathrow

Wed 4/3

11:45-22:32

2 stops16h 47m

£476

HoustonLondon

IAH - LCY

IAHLCY

Houston George Bush Intcntl

Mon 9/3

17:30-17:40

1 stop19h 10m

London City

Tue 17/3

09:50-19:15

1 stop14h 25m

£476

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 9/2

05:15-08:45

1 stop21h 30m

London Heathrow

Mon 16/2

17:35-13:55

1 stop26h 20m

£479

HoustonLondon

IAH - LGW

IAHLGW

Houston George Bush Intcntl

Tue 13/1

08:30-18:35

2 stops28h 05m

London Gatwick

Mon 19/1

14:00-11:11

1 stop27h 11m

£480

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 31/3

16:20-07:40

Nonstop9h 20m

London Heathrow

Tue 7/4

09:30-18:00

1 stop14h 30m

£481

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 22/4

16:20-07:40

Nonstop9h 20m

London Heathrow

Wed 29/4

09:30-18:00

1 stop14h 30m

£481

Flights are sorted by cheapest return flights first.

Deals found on 27/12

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 26 December 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 49 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 £376). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £673). 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 27 December 2025.

When flying from Houston George Bush Intcntl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 27 December 2025.

The most flights from IAH to LON are scheduled on a Thursday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 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 86% 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 £475.

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 Boston (BOS) have the shortest average one-way travel time for one-stop routes: 12h 38m.

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 Montreal (YUL) offer the fastest connection on this route, with an average stopover time of 6h 15m.

How often are flights from Houston to London delayed?

About 27% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 144 minutes.

What is the most punctual flight time for Houston to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 19% of flights being delayed.

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 27 December 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
9,114 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,114 reviews
United Airlines
7.4
Good
9,114 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Iberia
7.0
Good
3,059 reviews
United Airlines
7.4
Good
9,114 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Lufthansa
6.8
Okay
7,653 reviews
United Airlines
7.4
Good
9,114 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
British Airways
6.7
Okay
7,614 reviews
United Airlines
7.4
Good
9,114 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 10m. Delta provides one of the quickest options available for as low as £469. 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 £300. Additional return tickets that might be worth considering are offered by Iberia and United Airlines, with the lowest prices starting at £425 and £426, respectively. These flights start at 49% 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 British Airways. According to our data, you can fly for as low as £275. Users have also found prices from £276 and £291 on Lufthansa and United Airlines, 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 (73%), Aer Lingus (73%), Finnair( 73%).

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

    On average you can expect to pay £520 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £268 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 £376). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £673). 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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Browse thousands of different options on Cheapflights for your next trip

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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 27 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£300Average£477FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£425Average£513FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£426Average£728FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£428Average£515FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£446Average£721FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from George Bush Intcntl to London?

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Why should you use Cheapflights to find cheap flight tickets from George Bush Intcntl to London?

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Can Cheapflights find flights from George Bush Intcntl to London with no change fees?

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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