Question : What is the cheapest day to fly in the next four weeks?
Answer : Since low prices are preferred, look at December 20th. As of November 28th, the cheapest ticket sales are coming in 27% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : Is there another local airport that can get you to London?
Answer : Try searching for flights from George Bush Intercontinental Airport (IAH) as well. Over the next two months, flights from IAH to LHR are being priced 13% cheaper than flights from HOU to LHR. Being only 23 miles away, it's easily accessible for most.
Question : How many days should you spend in London if you're flying in from Houston?
Answer : Travelers from HOU to LHR stay 10 days on average.
Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : In December, Thursday is your cheapest day to fly. Being flexible with your travel days garners you even more savings during your booking.
Question : Who's offering the cheapest round-trip flight to London Heathrow Airport (LHR) over the coming months?
Answer : Check out Air France, as they have been booking customers at lower fares than most.