Cheap flights from Houston George Bush Intcntl Airport to London from £284
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to London departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Not ready to book? to track prices.Air Canada flights from Houston George Bush Intcntl Airport to London Heathrow Airport
Our best Air Canada deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
JetBlue flights from Houston George Bush Intcntl Airport to London Heathrow Airport
Our best JetBlue deals on Houston George Bush Intcntl Airport to London Heathrow Airport flight tickets
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Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to London Heathrow Airport that are best for you.
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Route
Depart
Return
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 7/3
18:10-11:50
1 stop35h 40m
London Heathrow
Wed 10/3
06:50-21:26
2 stops20h 36m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sat 9/1
18:10-11:50
1 stop35h 40m
London Heathrow
Tue 12/1
06:50-21:34
2 stops20h 44m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Mon 8/3
18:10-11:50
1 stop35h 40m
London Heathrow
Thu 11/3
06:50-21:26
2 stops20h 36m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Fri 9/4
15:30-06:40
Nonstop9h 10m
London Heathrow
Thu 15/4
09:10-13:25
Nonstop10h 15m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sat 10/4
15:30-06:40
Nonstop9h 10m
London Heathrow
Fri 16/4
09:10-13:25
Nonstop10h 15m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Tue 9/3
16:30-07:40
Nonstop9h 10m
London Heathrow
Thu 11/3
06:35-16:20
1 stop15h 45m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 8/11
19:10-13:45
1 stop12h 35m
London Heathrow
Tue 24/11
17:05-13:10
1 stop26h 05m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Tue 9/3
11:55-07:10
1 stop13h 15m
London Heathrow
Thu 11/3
06:35-16:20
1 stop15h 45m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sat 10/4
15:30-06:40
Nonstop9h 10m
London Heathrow
Mon 12/4
09:10-13:25
Nonstop10h 15m
HoustonLondon
IAH Houston George Bush Intcntl - LHR London Heathrow
IAHLHR
Houston George Bush Intcntl
Sun 8/11
15:25-09:00
1 stop11h 35m
London Heathrow
Tue 24/11
20:25-13:10
1 stop22h 45m
See travel insights to London from
How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Houston George Bush Intcntl Airport and London Heathrow Airport?
Prices are currently low for flights on this route.
Typical prices usually range from £614 to £793.The lowest price recently found on this route was £609.
What is the cheapest month to fly to London Heathrow Airport?
In general, February is the cheapest month to fly from Houston George Bush Intcntl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £545. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Houston George Bush Intcntl Airport averaging around £546.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Houston George Bush Intcntl Airport to London Heathrow Airport in the afternoon for as low as £713. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £729 on average. Flights to London Heathrow Airport from Houston George Bush Intcntl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Houston George Bush Intcntl to London Heathrow flight route?
Fly from Houston George Bush Intcntl to London Heathrow for the best Houston George Bush Intcntl - London Heathrow flight prices
How far in advance should I book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £740 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Houston George Bush Intcntl Airport for as low as £621 on momondo.
What cabin class options are available on Houston George Bush Intcntl Airport to London Heathrow Airport flights?
There are 2 cabin classes available to choose from on Houston George Bush Intcntl Airport to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How have Houston George Bush Intcntl Airport to London Heathrow Airport flight prices changed over time?
As of October 2026, prices for Houston George Bush Intcntl Airport to London Heathrow Airport flights are approximately 7% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Houston George Bush Intcntl to London Heathrow?
United Airlines and JetBlue are the most popular carriers operating from Houston George Bush Intcntl to London Heathrow
Which airlines fly to London Heathrow Airport?
British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from Houston George Bush Intcntl Airport according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How often are flights from Houston to London delayed?
Historically, on average around 20% of flights between Houston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.
What is the most punctual flight time for Houston to London flights?
Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.
What day of the week experiences the fewest flight delays on this route?
Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.
Which airline has the best punctuality record on Houston to London flights?
According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.
How many flights depart from Houston George Bush Intcntl Airport to London Heathrow Airport on average per day?
17 flights are operational daily from Houston George Bush Intcntl Airport to London Heathrow Airport as of October 2026. The most popular departure time for this route is 20:00, with 64% of flights per day taking off in the evening.
How many flights depart from Houston George Bush Intcntl Airport to London Heathrow Airport on average per week?
The number of flights available between Houston George Bush Intcntl Airport and London Heathrow Airport is 125 per week as of October 2026. The most frequent departure day is Tue, with 18% of weekly flights leaving on this day.
When to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport
Cheap Houston George Bush Intcntl Airport to London Heathrow Airport (IAH to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to London Heathrow Airport
Frequently asked questions about flying from Houston George Bush Intcntl Airport to London Heathrow Airport
How far is Houston George Bush Intcntl to London Heathrow by plane?
A flight from Houston George Bush Intcntl to London Heathrow will travel around 4820.4 mi. A reasonable flight in good conditions will take 9h 00m.
When did momondo last update prices for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?
Prices for flights from Houston George Bush Intcntl Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Houston George Bush Intcntl Airport to London Heathrow Airport?
As of October 2026, there are 3 operators available to choose from for flights from Houston George Bush Intcntl Airport to London Heathrow Airport.
How old do you have to be to fly from Houston George Bush Intcntl Airport to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Houston George Bush Intcntl Airport to London Heathrow Airport?
Based on momondo bookings for flights between Houston George Bush Intcntl Airport and London Heathrow Airport, the leading plane model is Boeing 777, making up 40.57% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 18.46%, Boeing 777-300ER with 15.49%, and Boeing 787-9 Dreamliner with 14.00%.
What is the most popular airline from Houston George Bush Intcntl Airport to London Heathrow Airport?
Based on momondo bookings for flights between Houston George Bush Intcntl Airport and London Heathrow Airport, the leading airline is British Airways, making up 48% of the total bookings. Other popular airlines include United Airlines with 35% and Virgin Atlantic with 17%.
Best airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport
Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £452 | Free Cancellation | Rating 7.5 694 reviews | |||
| PriceFrom £485 | Free Cancellation | Rating 7.4 10,345 reviews | |||
| PriceFrom £502 | Free Cancellation | Rating 6.7 8,255 reviews |
United Airlines Flights From Houston George Bush Intcntl Airport to London Heathrow Airport
United Airlines operates around 10 flights from Houston George Bush Intcntl Airport to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £786, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to London Heathrow Airport from as low as £485 round-trip. United Airlines has been scored 7.4/10 in 10,345 reviews.
British Airways Flights From Houston George Bush Intcntl Airport to London Heathrow Airport
Across 8,255 British Airways reviews on momondo, the average score is 6.7/10. British Airways flies from Houston George Bush Intcntl Airport to London Heathrow Airport about 13 times each week, with ticket deals ranging from £502 to £765. Price data is based on momondo searches in the last 72 hours.
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Can I find flights from Houston to London with flexible booking policies on momondo?
All flight searches from Houston to London on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Houston to London?
Once all potential Houston to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Houston to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.