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Cheap flights from Houston George Bush Intcntl Airport to London from £139

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
23 Mar — 30 Mar1
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 34 days in advance, depart on a Tuesday or Monday 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 21 February 2026.

Wed 18/317:05
IAH
-
LHR
1 stop18h 30m
Virgin Atlantic
Wed 1/406:30
LHR
-
IAH
1 stop12h 45m
Virgin Atlantic
Deal found 18/2£461
Sun 15/318:05
IAH
-
LHR
1 stop21h 05m
Delta
Tue 31/311:45
LHR
-
IAH
1 stop31h 30m
Delta
Deal found 19/2£463
Fri 17/407:05
IAH
-
LGW
1 stop17h 15m
Multiple Airlines
Sat 25/414:00
LGW
-
IAH
1 stop14h 30m
Multiple Airlines
Deal found 17/2£463
Wed 4/312:10
IAH
-
LHR
1 stop13h 00m
Multiple Airlines
Tue 10/306:50
LHR
-
IAH
2 stops19h 49m
Multiple Airlines
Deal found 17/2£464
Thu 26/211:53
IAH
-
LGW
1 stop16h 07m
Multiple Airlines
Thu 5/314:00
LGW
-
IAH
1 stop34h 47m
Multiple Airlines
Deal found 19/2£465
Thu 19/212:10
IAH
-
LHR
1 stop13h 00m
Air Canada
Tue 24/206:50
LHR
-
IAH
2 stops20h 49m
Air Canada
Deal found 17/2£465
Wed 25/316:11
IAH
-
LGW
1 stop12h 49m
Multiple Airlines
Mon 6/414:00
LGW
-
IAH
2 stops23h 29m
Multiple Airlines
Deal found 17/2£465
Wed 11/312:10
IAH
-
LHR
1 stop14h 00m
Multiple Airlines
Mon 16/319:30
LHR
-
IAH
1 stop24h 40m
Multiple Airlines
Deal found 16/2£466
Fri 27/316:30
IAH
-
LGW
1 stop12h 30m
Multiple Airlines
Mon 6/414:00
LGW
-
IAH
1 stop26h 18m
Multiple Airlines
Deal found 17/2£466
Mon 23/317:05
IAH
-
LHR
1 stop12h 25m
Virgin Atlantic
Tue 31/319:15
LHR
-
IAH
1 stop24h 00m
Virgin Atlantic
Deal found 16/2£468
Tue 31/305:15
IAH
-
LGW
2 stops22h 45m
Multiple Airlines
Tue 7/414:00
LGW
-
IAH
1 stop14h 34m
Multiple Airlines
Deal found 20/2£468
Wed 4/307:00
IAH
-
LHR
1 stop17h 55m
Delta
Thu 19/306:30
LHR
-
IAH
1 stop13h 00m
Delta
Deal found 17/2£468

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 21 February 2026.

Round-trip from

£461

One-way from

£139

Popular in

June

Cheapest in

September

Average price

£558

Good round-trip deal

£486 or less

Good one-way deal

£256 or less
Virgin Atlantic
  • Virgin Atlantic
  • 18/3-1/4
  • 2 total stops
  • 31h 15m total
  • Houston to London
Search Deals
24/3
  • 24/3
  • 1 total stop
  • 16h 14m total
  • Houston to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 21 February 2026.
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

Tue 24/3

16:11-10:00

1 stop12h 49m

London Gatwick

Thu 9/4

14:00-22:37

1 stop14h 37m

£472

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 11/3

12:40-06:55

1 stop13h 15m

London Heathrow

Tue 17/3

06:30-21:09

2 stops19h 39m

£476

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 4/3

12:49-06:55

1 stop12h 06m

London Heathrow

Tue 10/3

06:30-17:49

2 stops16h 19m

£476

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 6/4

07:00-07:15

1 stop18h 15m

London Heathrow

Wed 15/4

06:30-13:15

1 stop12h 45m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 14/4

12:38-08:50

1 stop14h 12m

London Heathrow

Wed 6/5

06:30-13:15

1 stop12h 45m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 31/3

16:56-11:20

1 stop12h 24m

London Heathrow

Fri 1/5

06:30-13:15

1 stop12h 45m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 25/3

11:35-06:50

2 stops14h 15m

London Heathrow

Tue 31/3

09:55-23:59

2 stops20h 04m

£479

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 13/4

18:46-13:15

1 stop12h 29m

London Heathrow

Wed 22/4

06:30-13:15

1 stop12h 45m

£480

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 1/4

14:09-13:05

1 stop16h 56m

London Heathrow

Mon 6/4

19:15-13:15

1 stop24h 00m

£480

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 11/5

05:20-07:10

1 stop19h 50m

London Heathrow

Wed 20/5

11:45-13:15

1 stop31h 30m

£480

Flights are sorted by cheapest return flights first.

Deals found on 19/2

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 20 February 2026.

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 34 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 £377). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £680). 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 21 February 2026.

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 21 February 2026.

The most flights from IAH to LON are scheduled on a Thursday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (16 on average).

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

How often are flights from Houston to London delayed?

About 23% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 140 minutes.

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

Historically, flights departing at night 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 Friday 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 16% 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 21 February 2026.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to London, such as United Airlines, Lufthansa, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,335 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,335 reviews
United Airlines
7.4
Good
9,335 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,794 reviews
United Airlines
7.4
Good
9,335 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,756 reviews
United Airlines
7.4
Good
9,335 reviews
Check prices

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 12h 10m. Delta provides one of the quickest options available for as low as £509. 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 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 £426 and £427, 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 Lufthansa. According to our data, you can fly for as low as £277. Users have also found prices from £280 and £292 on British Airways 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 Stansted.

  • 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 (67%), Aer Lingus (67%), Finnair( 67%).

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

    On average you can expect to pay £476 for a flight from Houston George Bush Intcntl Airport to London. The cheapest flight overall is £211 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at £419.

  • 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 £377). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of £680). 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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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 21 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£300Average£494FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£426Average£514FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£427Average£704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£429Average£512FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£447Average£716FlexibilityNo 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?

Cheapflights makes it easy to find George Bush Intcntl to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from George Bush Intcntl to London for you. Better yet — we are completely free to use.

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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