Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £244
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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
9 Sep — 16 Sep1
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 January or February, booked 70 days in advance, depart on a Monday or Tuesday and return on a Thursday
Cheap flight deals from George Bush Intcntl to Heathrow
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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 10 August 2026.
Mon 21/909:44 -
1 stop14h 41m
Tue 6/1006:30 -
1 stop12h 50m
Deal found 7/8£585
Mon 23/1111:50 -
1 stop13h 20m
Wed 25/1106:00 -
2 stops21h 39m
Deal found 7/8£593
Wed 18/1118:20 -
1 stop35h 30m
Tue 1/1220:35 -
2 stops53h 22m
Deal found 6/8£619
Mon 21/921:05 -
Nonstop9h 20m
Tue 6/1014:45 -
Nonstop10h 35m
Deal found 7/8£623
Mon 21/912:00 -
2 stops16h 00m
Tue 6/1006:50 -
2 stops21h 02m
Deal found 7/8£624
Mon 23/1116:10 -
2 stops17h 40m
Wed 25/1106:30 -
1 stop13h 30m
Deal found 6/8£630
Wed 21/1010:00 -
1 stop14h 30m
Thu 29/1006:50 -
2 stops19h 49m
Deal found 7/8£631
Mon 21/910:00 -
1 stop18h 00m
Tue 6/1006:00 -
2 stops21h 52m
Deal found 7/8£631
Tue 22/914:18 -
2 stops17h 57m
Wed 7/1014:10 -
1 stop29h 45m
Deal found 6/8£632
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 10 August 2026.
Wed 14/1010:00 -
1 stop14h 30m
Fri 23/1007:30 -
1 stop16h 20m
Deal found 9/8£656
Mon 7/1212:20 -
1 stop13h 30m
Tue 15/1210:00 -
2 stops18h 34m
Deal found 10/8£656
Sun 18/1011:45 -
1 stop15h 45m
Tue 20/1008:15 -
1 stop14h 05m
Deal found 9/8£664
Thu 22/1014:08 -
1 stop18h 17m
Tue 27/1015:25 -
Nonstop10h 30m
Deal found 8/8£708
Thu 19/1121:00 -
1 stop37h 20m
Sun 29/1106:25 -
1 stop18h 40m
Deal found 9/8£751
Thu 10/912:21 -
2 stops24h 09m
Mon 21/907:05 -
3 stops20h 16m
Deal found 5/8£781
Fri 16/1015:30 -
Nonstop9h 10m
Tue 20/1008:55 -
1 stop15h 17m
Deal found 7/8£785
Thu 15/1012:03 -
2 stops16h 27m
Mon 19/1017:35 -
1 stop26h 05m
Deal found 7/8£705
Thu 21/119:05 -
Nonstop9h 10m
Sat 30/109:30 -
1 stop14h 45m
Deal found 8/8£734
Sun 6/920:15 -
Nonstop9h 20m
Mon 14/907:25 -
1 stop15h 15m
Deal found 9/8£773
Thu 10/920:15 -
Nonstop9h 20m
Thu 17/907:25 -
1 stop15h 15m
Deal found 8/8£773
Sat 12/918:05 -
1 stop20h 35m
Sat 26/906:50 -
2 stops23h 40m
Deal found 9/8£783
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 10 August 2026.
Mon 21/921:05 -
Nonstop9h 20m
Tue 6/1014:45 -
Nonstop10h 35m
Deal found 7/8£623
Mon 21/921:05 -
Nonstop9h 20m
Tue 6/1009:10 -
Nonstop10h 15m
Deal found 9/8£642
Wed 21/1015:30 -
Nonstop9h 10m
Wed 4/1109:35 -
Nonstop10h 30m
Deal found 5/8£647
Tue 5/115:50 -
Nonstop9h 00m
Wed 13/109:35 -
Nonstop10h 30m
Deal found 7/8£659
Wed 23/915:30 -
Nonstop9h 10m
Wed 30/909:10 -
Nonstop10h 15m
Deal found 9/8£660
Tue 10/1115:50 -
Nonstop9h 00m
Wed 18/1109:35 -
Nonstop10h 30m
Deal found 9/8£665
Last-minute flights from George Bush Intcntl to Heathrow
Discover last-minute flight deals from George Bush Intcntl to Heathrow. Data last updated 10 August 2026 and is based on user searches.
Mon 21/909:44 -
1 stop14h 41m
Tue 6/1006:30 -
1 stop12h 50m
Deal found 7/8£585
Mon 21/921:05 -
Nonstop9h 20m
Tue 6/1014:45 -
Nonstop10h 35m
Deal found 7/8£623
Mon 21/912:00 -
2 stops16h 00m
Tue 6/1006:50 -
2 stops21h 02m
Deal found 7/8£624
Mon 21/910:00 -
1 stop18h 00m
Tue 6/1006:00 -
2 stops21h 52m
Deal found 7/8£631
Tue 22/914:18 -
2 stops17h 57m
Thu 8/1014:10 -
1 stop14h 30m
Deal found 6/8£632
Tue 22/914:18 -
2 stops17h 57m
Tue 6/1014:10 -
1 stop29h 45m
Deal found 6/8£633
Tue 22/914:18 -
2 stops17h 57m
Tue 20/1014:10 -
1 stop29h 45m
Deal found 9/8£634
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 10 August 2026.
Wed 14/1011:45 -
1 stop15h 45m
Deal found 10/8£244
Tue 6/1014:18 -
2 stops17h 57m
Deal found 7/8£245
Wed 18/1113:35 -
1 stop16h 15m
Deal found 9/8£245
Mon 31/818:00 -
1 stop20h 45m
Deal found 7/8£251
Thu 26/1116:00 -
1 stop32h 55m
Deal found 10/8£252
Sun 6/906:30 -
2 stops23h 25m
Deal found 5/8£255
Mon 9/1122:30 -
2 stops55h 20m
Deal found 6/8£256
Fri 11/910:30 -
2 stops27h 50m
Deal found 8/8£257
Sat 7/1122:30 -
2 stops31h 20m
Deal found 6/8£261
Find 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 10 August 2026.
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 10 August 2026.
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
Fly to
Route
Depart
Return
Price
Cheapest return flight
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Wed 14/10
10:00-06:30
1 stop14h 30m
London Heathrow
Fri 23/10
07:30-17:50
1 stop16h 20m
£656
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Mon 7/12
12:20-07:50
1 stop13h 30m
London Heathrow
Tue 15/12
10:00-22:34
2 stops18h 34m
£656
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 18/10
11:45-09:30
1 stop15h 45m
London Heathrow
Tue 20/10
08:15-16:20
1 stop14h 05m
£664
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 15/10
12:03-10:30
2 stops16h 27m
London Heathrow
Mon 19/10
17:35-13:40
1 stop26h 05m
£705
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 22/10
14:08-14:25
1 stop18h 17m
London Heathrow
Tue 27/10
15:25-20:55
Nonstop10h 30m
£708
Fastest return journey
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 21/1
19:05-10:15
Nonstop9h 10m
London Heathrow
Sat 30/1
09:30-18:15
1 stop14h 45m
£734
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 19/11
21:00-16:20
1 stop37h 20m
London Heathrow
Sun 29/11
06:25-19:05
1 stop18h 40m
£751
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 6/9
20:15-11:35
Nonstop9h 20m
London Heathrow
Mon 14/9
07:25-16:40
1 stop15h 15m
£773
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 10/9
20:15-11:35
Nonstop9h 20m
London Heathrow
Thu 17/9
07:25-16:40
1 stop15h 15m
£773
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 10/9
12:21-18:30
2 stops24h 09m
London Heathrow
Mon 21/9
07:05-21:21
3 stops20h 16m
£781
Flights are sorted by cheapest return flights first.
Deals found on 9/8
Showing 1-10 of 24 resultsSorted by cheapest first
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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.
IAH-LHR
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?
The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 69 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £519). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £1,049). 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 10 August 2026.
When flying from Houston George Bush Intcntl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost for a return flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
Airfare is typical for this route at the moment.
Houston George Bush Intcntl Airport to London Heathrow Airport flights typically cost between £533 and £765 in September.The cheapest return price found within the last 5 days was £585 on Virgin Atlantic (21 Sept–6 Oct).
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 10 August 2026.
The most flights from IAH to LHR are scheduled on a Saturday (22 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).
How often are flights from Houston to London delayed?
About 22% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 148 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?
Thursday 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 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 10 August 2026.
See what other customers who have flown with Virgin Atlantic,United Airlines, 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 flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
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 £656, United Airlines can have you in London Heathrow Airport from Houston George Bush Intcntl Airport in 13h 30m. 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 Virgin Atlantic. Our recent data shows that you can find tickets from as low as £300 on this airline. Additional options worth looking into are Lufthansa and United Airlines, starting at £384 and £387 round-trip. These flights start at 55% 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 £289. United Airlines flights start at £291 while deals on Lufthansa start at £299 one-way.
What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?
Consider American Airlines (74%), Aer Lingus (74%) or Finnair (74%) 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 £605, our data shows the cheapest flight currently is £237. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £614 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of £519). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £1,049). 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 10 August 2026.
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 10 August 2026.
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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