Cheap flights from London Heathrow Airport to Houston from £328

In general, January is the cheapest month to fly from London Heathrow Airport to Houston George Bush Intcntl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £630. If you aren’t able to travel to Houston George Bush Intcntl Airport during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £664.

Our data shows that Thursday is the least expensive day to fly to Houston George Bush Intcntl Airport. Tickets to fly out on this day can be as low as £717. The most expensive day to fly to Houston George Bush Intcntl Airport is Saturday, with ticket prices averaging around £761.

Our data shows that the cheapest London Heathrow Airport to Houston George Bush Intcntl Airport flights are usually those with departure times in the morning. Our users have found flights to Houston George Bush Intcntl Airport in the morning for as low as £738. Try not to purchase tickets in the afternoon because they tend to be around £764. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from London Heathrow to Houston George Bush Intcntl for the best London Heathrow - Houston George Bush Intcntl flight prices

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around £781 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from London Heathrow Airport for as low as £693 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to Houston George Bush Intcntl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 14% of flights between London and Houston have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Boston (BOS) was the most common stop: 78% of momondo users choosing one-stop flights on this route connected there.

Flights via Montreal (YUL) offer the lowest average return price of £620.

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 13h 18m.

Dallas (DFW) has the shortest average stopover time for this route: 2h 38m.

19 flights are operational daily from London Heathrow Airport to Houston George Bush Intcntl Airport as of March 2026. The most popular departure time for this route is 10:00, with 54% of flights per day taking off at midday.

As of March 2026, 135 flights take off from London Heathrow Airport and land in Houston George Bush Intcntl Airport each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.