Cheap flights from Houston George Bush Intcntl Airport to London Heathrow Airport from £243
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/4. 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 January or February, booked 89 days in advance, depart on a Monday or Tuesday and return on a Thursday
Cheap flight deals from George Bush Intcntl to Heathrow
Enter your travel dates to find the best prices.
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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 8 November 2026.
Tue 10/1117:18 -
1 stop22h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 4/11£581
Wed 2/1211:26 -
1 stop16h 04m
Mon 7/1209:20 -
1 stop14h 40m
Deal found 3/11£594
Fri 6/1117:18 -
1 stop22h 22m
Fri 13/1108:05 -
1 stop14h 21m
Deal found 4/11£597
Fri 4/1217:35 -
1 stop22h 05m
Sun 6/1209:20 -
1 stop14h 40m
Deal found 4/11£611
Tue 8/1217:35 -
1 stop22h 05m
Tue 15/1207:25 -
1 stop15h 20m
Deal found 8/11£614
Wed 2/1217:35 -
1 stop33h 55m
Wed 9/1209:20 -
1 stop14h 40m
Deal found 4/11£617
Fri 6/1112:08 -
1 stop15h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 5/11£619
Fri 13/1117:18 -
1 stop22h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 7/11£620
Tue 1/1213:00 -
1 stop11h 55m
Wed 9/1209:20 -
1 stop14h 40m
Deal found 5/11£621
Fri 4/1217:35 -
1 stop22h 05m
Sat 12/1209:20 -
1 stop14h 40m
Deal found 6/11£621
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 2026.
Fri 15/111:32 -
1 stop15h 58m
Mon 25/108:05 -
1 stop14h 45m
Deal found 3/11£631
Tue 5/105:30 -
1 stop20h 20m
Wed 13/111:45 -
2 stops17h 07m
Deal found 7/11£702
Sun 3/119:00 -
Nonstop9h 15m
Tue 12/112:05 -
Nonstop10h 40m
Deal found 6/11£736
Wed 17/215:47 -
3 stops23h 48m
Mon 22/207:05 -
3 stops22h 54m
Deal found 5/11£815
Tue 26/116:53 -
3 stops22h 42m
Wed 24/208:15 -
2 stops33h 08m
Deal found 4/11£836
Wed 13/111:32 -
1 stop15h 58m
Mon 25/108:05 -
1 stop14h 45m
Deal found 3/11£645
Thu 11/311:55 -
1 stop13h 15m
Thu 18/306:35 -
1 stop15h 45m
Deal found 5/11£744
Wed 30/1219:00 -
Nonstop9h 15m
Thu 7/109:30 -
1 stop14h 45m
Deal found 3/11£760
Fri 27/1107:00 -
1 stop17h 25m
Mon 30/1117:35 -
1 stop29h 15m
Deal found 5/11£865
Fri 23/411:50 -
2 stops22h 10m
Sun 9/506:40 -
3 stops20h 30m
Deal found 8/11£893
Thu 14/116:30 -
Nonstop9h 10m
Mon 25/112:05 -
Nonstop10h 40m
Deal found 3/11£791
Thu 26/1116:25 -
Nonstop9h 15m
Sat 5/1213:00 -
1 stop14h 34m
Deal found 6/11£818
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 2026.
Wed 2/1215:50 -
Nonstop9h 00m
Wed 9/1209:35 -
Nonstop10h 30m
Deal found 3/11£687
Wed 2/1215:50 -
Nonstop9h 00m
Wed 9/1209:35 -
Nonstop10h 30m
Deal found 4/11£693
Sun 10/115:50 -
Nonstop9h 00m
Tue 19/115:25 -
Nonstop10h 30m
Deal found 3/11£693
Tue 12/115:50 -
Nonstop9h 00m
Tue 19/109:35 -
Nonstop10h 30m
Deal found 7/11£694
Mon 7/1221:40 -
Nonstop9h 00m
Wed 23/1209:35 -
Nonstop10h 30m
Deal found 5/11£697
Sun 6/1216:30 -
Nonstop9h 10m
Tue 22/1210:00 -
Nonstop10h 35m
Deal found 8/11£698
Wed 9/1216:30 -
Nonstop9h 10m
Tue 15/1212:05 -
Nonstop10h 35m
Deal found 7/11£699
Wed 10/315:50 -
Nonstop9h 00m
Tue 16/315:25 -
Nonstop10h 30m
Deal found 7/11£701
Thu 10/1221:40 -
Nonstop9h 00m
Sat 19/1215:25 -
Nonstop10h 30m
Deal found 8/11£702
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 2026 and is based on user searches.
Fri 6/1117:18 -
1 stop22h 22m
Fri 13/1108:05 -
1 stop14h 21m
Deal found 4/11£597
Fri 6/1112:08 -
1 stop15h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 5/11£619
Tue 10/1117:18 -
1 stop22h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 4/11£581
Fri 13/1117:18 -
1 stop22h 22m
Wed 18/1107:25 -
1 stop15h 01m
Deal found 7/11£620
Tue 1/1213:00 -
1 stop11h 55m
Wed 9/1209:20 -
1 stop14h 40m
Deal found 5/11£621
Wed 2/1211:26 -
1 stop16h 04m
Mon 7/1209:20 -
1 stop14h 40m
Deal found 3/11£594
Wed 2/1217:35 -
1 stop33h 55m
Wed 9/1209:20 -
1 stop14h 40m
Deal found 4/11£617
Fri 4/1217:35 -
1 stop22h 05m
Sun 6/1209:20 -
1 stop14h 40m
Deal found 4/11£611
Fri 4/1217:35 -
1 stop22h 05m
Sat 12/1209:20 -
1 stop14h 40m
Deal found 6/11£621
Tue 8/1217:35 -
1 stop22h 05m
Tue 15/1207:25 -
1 stop15h 20m
Deal found 8/11£614
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 2026.
Thu 29/417:44 -
1 stop21h 01m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/11£243
Thu 4/316:10 -
1 stop22h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£252
Mon 5/411:30 -
1 stop13h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£253
Sun 25/418:00 -
1 stop20h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/11£254
Thu 25/214:42 -
1 stop34h 13m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/11£257
Thu 18/209:48 -
2 stops45h 02m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£258
Sat 5/1219:20 -
3 stops35h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£258
Sat 13/316:10 -
1 stop22h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 4/11£259
Wed 13/105:20 -
2 stops23h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/11£262
Mon 22/322:40 -
Nonstop9h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/11£263
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 8 November 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 7,457,451 searches. Data last updated 8 November 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
Sun 7/3
19:00-10:15
Nonstop9h 15m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£272
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Wed 7/4
11:50-10:00
1 stop16h 10m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£274
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Mon 22/3
12:10-10:25
2 stops17h 15m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£275
Fastest return journey
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Fri 12/3
16:30-07:40
Nonstop9h 10m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£309
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Thu 29/4
18:10-06:30
2 stops30h 20m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£311
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Mon 11/1
11:32-17:30
2 stops23h 58m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£407
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 10/1
09:58-08:05
2 stops16h 07m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£422
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Wed 18/11
19:00-10:15
Nonstop9h 15m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£464
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Mon 1/2
14:26-21:35
3 stops25h 09m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£477
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 27/12
16:30-07:40
Nonstop9h 10m
London Heathrow
Wed 31/12
00:00-17:00
Nonstop0h 00m
£490
Flights are sorted by cheapest return flights first.
Deals found on 6/11
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 88 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 £546). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £1,075). 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 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 below average for this route at the moment.
Houston George Bush Intcntl Airport to London Heathrow Airport flights typically cost between £678 and £824 in February.The cheapest return price found within the last 5 days was £561 on Air Canada (15 Feb–17 Feb).
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 2026.
The most flights from IAH to LHR are scheduled on a Friday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).
How often are flights from Houston to London delayed?
About 20% 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?
Saturday 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 15% 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 2026.
See what other customers who have flown with Virgin Atlantic,United Airlines, andBritish Airways 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.
This is the third time I have flown with Virgin Atlantic to London. The entire process from booking to arrival and the flight are exceptional. The flight was comfortable in Premium and the flight crew were very attentive to all of our needs. They make travel a pleasure.
This is the third time I have flown with Virgin Atlantic to London. The entire process from booking to arrival and the flight are exceptional. The flight was comfortable in Premium and the flight crew were very attentive to all of our needs. They make travel a pleasure.
This is the third time I have flown with Virgin Atlantic to London. The entire process from booking to arrival and the flight are exceptional. The flight was comfortable in Premium and the flight crew were very attentive to all of our needs. They make travel a pleasure.
This is the third time I have flown with Virgin Atlantic to London. The entire process from booking to arrival and the flight are exceptional. The flight was comfortable in Premium and the flight crew were very attentive to all of our needs. They make travel a pleasure.
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 £699, United Airlines can have you in London Heathrow Airport from Houston George Bush Intcntl Airport in 9h 15m. 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 £448 on this airline. Additional options worth looking into are United Airlines and British Airways, starting at £481 and £498 round-trip. These flights start at 39% 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 £286. United Airlines flights start at £295 while deals on Lufthansa start at £302 one-way.
What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?
Consider Air Canada (85%), American Airlines (83%) or Aer Lingus (83%) 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 £654, our data shows the cheapest flight currently is £271. When looking at the most popular route, (Houston George Bush Intcntl - London Heathrow), you can expect to pay £600 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 £546). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of £1,075). 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 2026.
Top 3 airlines flying from George Bush Intcntl to Heathrow
Discover the top 3 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 7,457,451 searches. Data last updated 8 November 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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