Cheap flights from London to Houston from $417

The month of September is, on average, the cheapest month to fly to Houston from London, with most prices found around $894. The month of January is another great option to travel to Houston, with average flight prices from London averaging around $901.

Our data shows that the cheapest London to Houston flights are usually those with departure times at noon. Our users have found flights to Houston at noon for as low as $959. Try not to purchase tickets in the morning because they tend to be around $1,000. 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 - Houston flight prices

You are more likely to see cheaper flights to Houston from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $990 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from London for as low as $905 on momondo.

SWISS, Lufthansa, and Delta are the most popular carriers operating from London to Houston

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Houston from London according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 5 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

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 148 minutes.

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

Thursday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of February 2026, there are 18 flights per day flying from London to Houston. The most common time of day flights depart is 10:00AM, with 60% of flights taking off at noon.

129 flights are operational weekly from London to Houston as of February 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.