Cheap flights from Houston George Bush Intcntl Airport to London from £373

The cheapest month to fly to London from Houston George Bush Intcntl Airport is in September. Flight prices, which tend to average around £75, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Houston George Bush Intcntl Airport averaging around £144.

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £554. Flights in the evening are often more expensive, with an average ticket price of £560.

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

You are more likely to see cheaper flights to London from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £633 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Houston George Bush Intcntl Airport for as low as £554 on momondo.

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

You could potentially save up to 5% on your flight if you consider stops on a Houston George Bush Intcntl Airport to London flight.

JetBlue, Delta, and United Airlines are the most popular carriers operating from Houston George Bush Intcntl to London

British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to London from Houston George Bush Intcntl Airport according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 23% 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 148 minutes.

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.

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

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

21 flights are operational daily from Houston George Bush Intcntl Airport to London as of May 2026. The most popular departure time for this route is 20:00, with 61% of flights per day taking off in the evening.

The number of flights available between Houston George Bush Intcntl Airport and London is 149 per week as of May 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.