Cheap flights from London to Houston from £345

In general, February is the cheapest month to fly from London to Houston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £666. If you are unable to visit Houston during the month of February, then departing from London during the month September is also very affordable. Most momondo users find prices during this month for around £675.

The cheapest time of day to fly to Houston is in the afternoon when flights can be purchased for as low as £709. In contrast, the most expensive time of day to depart to Houston is in the morning when prices are around £739.

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 £755 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from London for as low as £660 on momondo.

JetBlue, TAP AIR PORTUGAL, and United Airlines are the most popular carriers operating from London to Houston

British Airways, Lufthansa and Austrian 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 55% of people opting to fly with this airline when travelling to Houston. Keep in mind that there are 16 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% 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 155 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 10% of their flights experiencing any sort of delay.

As of March 2026, there are 18 flights per day flying from London to Houston. The most common time of day flights depart is 12:00, with 53% of flights taking off at midday.

As of March 2026, there are 126 flights per week flying from London to Houston. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.