$364+ Cheap flights from George Bush Intcntl (IAH) to London (LON)
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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LON
Feb 19 — Feb 261
1 adult, Economy
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Find cheap flights from George Bush Intcntl to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston George Bush Intcntl to London are usually found in October or August, booked 34 days in advance, depart on a Wednesday or Tuesday and return on a Sunday
Cheap flight deals from George Bush Intcntl to London
Cheapest flights from George Bush Intcntl to LondonExplore 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 January 20, 2026.
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 January 20, 2026.
This British Airways deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/305:16 pm
IAH
- LHR
1 stop13h 19m
British Airways
Fri 5/18:55 am
LHR
- IAH
1 stop14h 28m
British Airways
Deal found 1/19![British Airways logo]()
$624
This FlightHub deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:25 pm
IAH
- LHR
2 stops32h 45m
Multiple Airlines
Mon 3/307:30 pm
LHR
- IAH
1 stop24h 05m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$625
This KAYAK deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/284:20 pm
IAH
- LHR
Nonstop9h 20m
Lufthansa
Mon 5/114:25 pm
LHR
- IAH
1 stop30h 10m
Lufthansa
Deal found 1/19![Lufthansa logo]()
$626
This oojo deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:31 am
IAH
- LHR
1 stop19h 19m
British Airways
Tue 3/106:00 am
LHR
- IAH
2 stops22h 57m
British Airways
Deal found 1/18![British Airways logo]()
$627
This eDestinos deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/512:21 pm
IAH
- LHR
1 stop12h 29m
Iberia
Tue 3/1011:55 am
LHR
- IAH
1 stop15h 36m
Iberia
Deal found 1/18![Iberia logo]()
$628
This Mytrip deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:10 am
IAH
- LGW
3 stops28h 35m
Multiple Airlines
Mon 3/166:55 am
LGW
- IAH
3 stops33h 14m
Multiple Airlines
Deal found 1/18![Multiple Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:10 am
IAH
- LHR
2 stops55h 25m
United Airlines
Mon 2/239:30 am
LHR
- IAH
1 stop34h 40m
United Airlines
Deal found 1/18![United Airlines logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:46 pm
IAH
- LGW
1 stop15h 14m
Multiple Airlines
Tue 4/72:00 pm
LGW
- IAH
1 stop26h 18m
Multiple Airlines
Deal found 1/17![Multiple Airlines logo]()
$629
This Air Canada deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:55 am
IAH
- LHR
2 stops16h 25m
Air Canada
Tue 3/319:30 am
LHR
- IAH
1 stop18h 06m
Air Canada
Deal found 1/19![Air Canada logo]()
$630
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2612:16 pm
IAH
- LGW
1 stop15h 44m
Multiple Airlines
Tue 2/108:30 am
LGW
- IAH
2 stops36h 38m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$630
This Mytrip deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1612:10 pm
IAH
- LTN
2 stops18h 05m
Multiple Airlines
Mon 2/236:15 am
LTN
- IAH
2 stops21h 24m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$631
This oojo deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/93:50 pm
IAH
- LHR
Nonstop9h 00m
British Airways
Mon 2/166:10 pm
LHR
- IAH
2 stops34h 21m
British Airways
Deal found 1/18![British Airways logo]()
$631
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 January 20, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $624 (British Airways) |
One-way from | $364 (Expedia) |
Popular in | June |
Cheapest in | October |
Average price | $701 |
Good round-trip deal | $680 or less |
Good one-way deal | $379 or less |
Cheapflights Fare Finder
Customize 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 2,558,603 searches. Data last updated January 20, 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 - LTN
IAHLTN
Houston George Bush Intcntl
Mon 2/16
12:10 pm-12:15 pm
2 stops18h 05m
London Luton
Mon 2/23
6:15 am-9:39 pm
2 stops21h 24m
$631
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 2/11
7:05 pm-10:15 am
Nonstop9h 10m
London Heathrow
Sun 2/22
10:00 am-2:45 pm
Nonstop10h 45m
$643
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 3/18
8:05 pm-10:15 am
Nonstop9h 10m
London Heathrow
Mon 3/23
10:00 am-3:45 pm
Nonstop10h 45m
$643
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 2/11
7:05 pm-10:15 am
Nonstop9h 10m
London Heathrow
Mon 2/23
10:00 am-2:45 pm
Nonstop10h 45m
$643
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Mon 3/30
11:15 am-10:00 am
1 stop16h 45m
London Gatwick
Sun 4/26
2:00 pm-10:41 pm
1 stop14h 41m
$647
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 3/18
10:01 am-6:50 am
1 stop15h 49m
London Heathrow
Mon 3/23
9:35 am-3:05 pm
Nonstop10h 30m
$648
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Sun 3/29
3:50 pm-3:45 pm
1 stop17h 55m
London Gatwick
Tue 4/28
10:35 am-11:55 pm
2 stops19h 20m
$656
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Wed 4/15
3:50 pm-4:00 pm
1 stop18h 10m
London Gatwick
Tue 4/21
10:35 am-10:54 pm
2 stops18h 19m
$656
HoustonLondon
IAH - LCY
IAHLCY
Houston George Bush Intcntl
Mon 2/23
3:30 pm-7:35 pm
1 stop22h 05m
London City
Mon 3/2
8:05 pm-1:30 pm
1 stop23h 25m
$658
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Thu 3/26
4:50 pm-6:50 am
Nonstop9h 00m
London Heathrow
Fri 4/10
9:10 am-1:25 pm
Nonstop10h 15m
$660
Showing 1-10 of 60 results
Compare providers for flights from George Bush Intcntl to London
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to London in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-London flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Houston George Bush Intcntl Airport-London flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-London flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-London flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 round-trip 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 round-trip flight from George Bush Intcntl to London. Price data was last updated on January 16, 2026.
Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 $508). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of $905). 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 January 20, 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 January 20, 2026.
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).
How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to London?
What’s the top layover airport for flights from Houston George Bush Intcntl Airport to London?
Share of 1-stop round-trip flights from Houston George Bush Intcntl Airport to London chosen by Cheapflights users in the past 12 months, using the same layover each way.
Boston (BOS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Houston George Bush Intcntl Airport to London on Cheapflights.
What’s the cheapest layover airport for flights from Houston George Bush Intcntl Airport to London?
Average round-trip fare for 1-stop flights from Houston George Bush Intcntl Airport to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Boston (BOS) is the most affordable 1-stop option, with an average round-trip price of $872.
What’s the fastest layover option from Houston George Bush Intcntl Airport to London?
Shortest average travel time for 1-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 layover airport.
Flights via Boston (BOS) have the shortest average one-way travel time for 1-stop routes: 12h 38m.
Which airport typically offers the quickest layover for flights from Houston George Bush Intcntl Airport to London?
Average layover duration for 1-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 Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 8h 58m.
How often are flights from Houston to London delayed?
About 24% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 151 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 last year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.
The best insider tips for Houston George Bush Intcntl Airport to London flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to London trip
Our travel experts
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 January 20, 2026.
Read reviews from past customers who have flown Finnair, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
Comfort
7.4
Crew
8.2
Food
6.7
Entertainment
6.9
Boarding
7.7
Overall
7.6
Reviews
1 / 20
2.0
MediocreRowland,Dec 2024
HEL - HKG
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.
Traveling to a place near London?
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Alternative routes for George Bush Intcntl to London
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from George Bush Intcntl to London
Discover the top 10 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 2,558,603 searches. Data last updated January 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$783 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$521 | Average$892 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$551 | Average$741 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$553 | Average$877 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$565 | Average$906 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$579 | Average$789 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$587 | Average$746 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$613 | Average$744 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$697 | Average$908 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$723 | Average$1,303 | FlexibilityNo cancel fee | On-time78% |