Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £271
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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
8 Dec — 15 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or September, booked 63 days in advance, depart on a Tuesday or Sunday and return on a Wednesday
Find flight deals from George Bush Intcntl to Heathrow
Enter your travel dates to find the best prices.
Cheapest flights from George Bush Intcntl to Heathrow
Explore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 November 2025.
Mon 24/1114:24IAH - LHR
1 stop13h 36mFinnair
Tue 9/1209:35LHR - IAH
Nonstop10h 30mFinnair
Deal found 6/11£433
Mon 1/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Tue 16/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£436
Mon 24/1112:30IAH - LHR
1 stop12h 40mAir Canada
Tue 9/1209:00LHR - IAH
2 stops18h 39mAir Canada
Deal found 6/11£437
Mon 24/1105:30IAH - LHR
1 stop21h 15mDelta
Tue 9/1206:30LHR - IAH
1 stop13h 00mDelta
Deal found 6/11£438
Mon 24/1112:35IAH - LHR
1 stop14h 25mVirgin Atlantic
Thu 4/1206:20LHR - IAH
1 stop13h 35mVirgin Atlantic
Deal found 7/11£440
Mon 24/1111:05IAH - LHR
1 stop14h 00mDelta
Thu 4/1206:20LHR - IAH
1 stop13h 35mDelta
Deal found 6/11£441
Sun 9/1111:05IAH - LHR
1 stop14h 00mVirgin Atlantic
Mon 17/1120:25LHR - IAH
1 stop23h 05mVirgin Atlantic
Deal found 6/11£442
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Fri 5/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£442
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Tue 9/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 7/11£444
Mon 24/1107:10IAH - LHR
2 stops18h 00mMultiple Airlines
Thu 4/1206:50LHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 7/11£445
Best flights from George Bush Intcntl to Heathrow
Discover carefully curated flight deals from George Bush Intcntl to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 November 2025.
Wed 26/1118:40IAH - LHR
1 stop11h 00mDelta
Wed 3/1208:40LHR - IAH
2 stops20h 34mDelta
Deal found 6/11£449
Mon 9/209:54IAH - LHR
2 stops26h 36mScandinavian Airlines
Mon 16/206:40LHR - IAH
2 stops22h 59mScandinavian Airlines
Deal found 6/11£454
Mon 26/112:49IAH - LHR
1 stop13h 16mDelta
Tue 3/209:00LHR - IAH
2 stops20h 58mDelta
Deal found 7/11£454
Mon 26/116:06IAH - LHR
2 stops23h 34mScandinavian Airlines
Tue 3/206:40LHR - IAH
2 stops22h 59mScandinavian Airlines
Deal found 6/11£454
Wed 7/110:35IAH - LHR
1 stop15h 15mDelta
Wed 14/109:00LHR - IAH
2 stops20h 58mDelta
Deal found 5/11£454
Wed 11/216:06IAH - LHR
2 stops19h 34mScandinavian Airlines
Mon 23/206:40LHR - IAH
2 stops22h 59mScandinavian Airlines
Deal found 5/11£455
Mon 9/209:54IAH - LHR
1 stop19h 46mDelta
Mon 16/214:45LHR - IAH
1 stop29h 10mDelta
Deal found 7/11£456
Wed 3/1212:35IAH - LHR
2 stops14h 25mDelta
Mon 8/1217:35LHR - IAH
1 stop26h 20mDelta
Deal found 6/11£474
Direct flights from George Bush Intcntl to Heathrow
Explore direct flight options from George Bush Intcntl to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 November 2025.
Mon 1/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Tue 16/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£436
Wed 3/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Fri 12/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£438
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Fri 5/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£442
Mon 26/121:45IAH - LHR
Nonstop9h 00mBritish Airways
Tue 3/209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 7/11£443
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Tue 9/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 7/11£444
Mon 16/215:50IAH - LHR
Nonstop9h 00mIberia
Wed 25/209:35LHR - IAH
Nonstop10h 30mIberia
Deal found 6/11£448
Sun 30/1121:50IAH - LHR
Nonstop9h 00mAmerican Airlines
Tue 23/1209:35LHR - IAH
Nonstop10h 30mAmerican Airlines
Deal found 7/11£451
Mon 23/215:50IAH - LHR
Nonstop9h 00mIberia
Thu 12/315:25LHR - IAH
Nonstop10h 35mIberia
Deal found 6/11£466
Mon 16/215:50IAH - LHR
Nonstop9h 00mFinnair
Sun 22/215:25LHR - IAH
Nonstop10h 35mFinnair
Deal found 7/11£471
Mon 16/221:45IAH - LHR
Nonstop9h 00mFinnair
Tue 12/514:45LHR - IAH
Nonstop10h 30mFinnair
Deal found 6/11£474
Thu 27/1115:50IAH - LHR
Nonstop9h 00mBritish Airways
Thu 11/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 7/11£475
Thu 4/1221:50IAH - LHR
Nonstop9h 00mBritish Airways
Thu 11/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£476
Last-minute flights from George Bush Intcntl to Heathrow
Discover last-minute flight deals from George Bush Intcntl to Heathrow. Data last updated 8 November 2025 and is based on user searches.
Sun 9/1111:05IAH - LHR
1 stop14h 00mVirgin Atlantic
Mon 17/1120:25LHR - IAH
1 stop23h 05mVirgin Atlantic
Deal found 6/11£442
Mon 24/1114:24IAH - LHR
1 stop13h 36mFinnair
Tue 9/1209:35LHR - IAH
Nonstop10h 30mFinnair
Deal found 6/11£433
Mon 24/1112:30IAH - LHR
1 stop12h 40mAir Canada
Tue 9/1209:00LHR - IAH
2 stops18h 39mAir Canada
Deal found 6/11£437
Mon 24/1105:30IAH - LHR
1 stop21h 15mDelta
Tue 9/1206:30LHR - IAH
1 stop13h 00mDelta
Deal found 6/11£438
Mon 24/1112:35IAH - LHR
1 stop14h 25mVirgin Atlantic
Thu 4/1206:20LHR - IAH
1 stop13h 35mVirgin Atlantic
Deal found 7/11£440
Mon 24/1111:05IAH - LHR
1 stop14h 00mDelta
Thu 4/1206:20LHR - IAH
1 stop13h 35mDelta
Deal found 6/11£441
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Fri 5/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£442
Mon 24/1121:45IAH - LHR
Nonstop9h 00mBritish Airways
Tue 9/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 7/11£444
Mon 24/1107:10IAH - LHR
2 stops18h 00mMultiple Airlines
Thu 4/1206:50LHR - IAH
2 stops20h 49mMultiple Airlines
Deal found 7/11£445
Mon 1/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Tue 16/1209:35LHR - IAH
Nonstop10h 30mBritish Airways
Deal found 6/11£436
One-way flights from George Bush Intcntl to Heathrow
Search for one-way flight options from George Bush Intcntl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 8 November 2025.
Sun 16/1105:14IAH - LHR
2 stops23h 36mMultiple Airlines
Deal found 6/11£271
Wed 19/1105:14IAH - LHR
2 stops20h 51mMultiple Airlines
Deal found 6/11£273
Tue 9/1215:50IAH - LHR
Nonstop9h 00mBritish Airways
Deal found 6/11£276
Wed 26/1115:50IAH - LHR
Nonstop9h 00mBritish Airways
Deal found 6/11£277
Mon 17/1105:14IAH - LHR
2 stops26h 51mMultiple Airlines
Deal found 6/11£278
Wed 26/1120:10IAH - LHR
1 stop28h 45mJetBlue
Deal found 5/11£282
Tue 18/1115:50IAH - LHR
Nonstop9h 00mBritish Airways
Deal found 7/11£284
Sun 11/112:30IAH - LHR
1 stop12h 25mJetBlue
Deal found 7/11£288
Sat 15/1117:10IAH - LHR
1 stop30h 45mLufthansa
Deal found 5/11£290
Tue 30/1216:30IAH - LHR
1 stop16h 15mLufthansa
Deal found 6/11£292
Fri 14/1105:14IAH - LHR
2 stops22h 06mMultiple Airlines
Deal found 6/11£295
Cheap flight deals from George Bush Intcntl to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Heathrow (LHR). 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 8 November 2025.
Customise your flight search to find flights from George Bush Intcntl to Heathrow 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 8 November 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to London Heathrow Airport that are best for you.
Fly from
George Bush Intcntl
Fly to
Heathrow
Route
Depart
Return
Price
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 26/11
18:40-11:40
1 stop11h 00m
London Heathrow
Wed 3/12
08:40-23:14
2 stops20h 34m
£449
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 26/1
12:49-08:05
1 stop13h 16m
London Heathrow
Tue 3/2
09:00-23:58
2 stops20h 58m
£454
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 9/2
09:54-18:30
2 stops26h 36m
London Heathrow
Mon 16/2
06:40-23:39
2 stops22h 59m
£454
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 26/1
16:06-21:40
2 stops23h 34m
London Heathrow
Tue 3/2
06:40-23:39
2 stops22h 59m
£454
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 7/1
10:35-07:50
1 stop15h 15m
London Heathrow
Wed 14/1
09:00-23:58
2 stops20h 58m
£454
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 11/2
16:06-17:40
2 stops19h 34m
London Heathrow
Mon 23/2
06:40-23:39
2 stops22h 59m
£455
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 9/2
09:54-11:40
1 stop19h 46m
London Heathrow
Mon 16/2
14:45-13:55
1 stop29h 10m
£456
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 3/12
12:35-09:00
2 stops14h 25m
London Heathrow
Mon 8/12
17:35-13:55
1 stop26h 20m
£474
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 3/12
15:50-06:50
Nonstop9h 00m
£276
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 26/11
20:10-06:55
1 stop28h 45m
£282
Flights are sorted by cheapest return flights first.
Deals found on 6/11
Showing 1-10 of 20 results
1
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Best time to book a flight from George Bush Intcntl to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from George Bush Intcntl to Heathrow. Price data was last updated on 31 October 2025.
The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £387). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £697). 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 LHR?
Find hourly flight availability from George Bush Intcntl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 November 2025.
It’s typically best to fly out from Houston George Bush Intcntl Airport to London Heathrow Airport at midday. Doing so could potentially save you 31% on the flight price compared to flying in the evening, which is usually more expensive.
How much does it cost for a return flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Weekly flight availability from Houston George Bush Intcntl Airport to London Heathrow Airport
Explore weekly flight availability from George Bush Intcntl to Heathrow. 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 8 November 2025.
The most flights from IAH to LHR are scheduled on a Thursday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).
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 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, American Airlines have had the lowest number of delays on this route, with just 20% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 8 November 2025.
See what other customers who have flown with United Airlines, Iberia, andLufthansa from Houston George Bush Intcntl Airport to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Related info for your journey
Find useful and relevant information for your journey from George Bush Intcntl to Heathrow. 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 Heathrow Airport?
For as low as £449, Delta can have you in London Heathrow Airport from Houston George Bush Intcntl Airport in 11h. Houston George Bush Intcntl Airport and London Heathrow Airport are separated by 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 Heathrow Airport round-trip?
Our cheapest airline available from Houston George Bush Intcntl Airport to London Heathrow Airport is United Airlines. Our recent data shows that you can find tickets from as low as £398 on this airline. Additional options worth looking into are Iberia and Lufthansa, starting at £436 and £440 round-trip. These flights start at 35% 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 Heathrow Airport one-way?
To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £276. JetBlue flights start at £282 while deals on Lufthansa start at £290 one-way.
What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?
Consider American Airlines (85%), Aer Lingus (85%) or Finnair (85%) when booking your flight. These represent the most reliable airlines when flying from Houston George Bush Intcntl Airport to London Heathrow Airport.
What are the cheapest flights from Houston George Bush Intcntl Airport to London Heathrow Airport?
While on average a flight from Houston George Bush Intcntl Airport to London Heathrow Airport is generally £632, our data shows the cheapest flight currently is £255. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £414 for that flight.
Can I find deals for flights from George Bush Intcntl to Heathrow that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Heathrow?
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 Heathrow.
Can I find deals for business class flights from George Bush Intcntl to Heathrow?
Yes. Cheapflights offers flight deals from George Bush Intcntl to Heathrow 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 Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £387). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £697). 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.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 November 2025.
Top 4 airlines flying from George Bush Intcntl to Heathrow
Discover the top 4 airlines that operate flights from George Bush Intcntl to Heathrow. 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 8 November 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from George Bush Intcntl to Heathrow?
Cheapflights makes it easy to find George Bush Intcntl to Heathrow 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 Heathrow?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from George Bush Intcntl to Heathrow.
Can Cheapflights find flights from George Bush Intcntl to Heathrow with no change fees?
Certainly. Search results for flights to Heathrow from George Bush Intcntl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from George Bush Intcntl to Heathrow become cheaper?
Not ready to book yet? You can track prices for flights from George Bush Intcntl to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.
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