British carrier BMI will double its service from the Saudi capital Riyadh to London Heathrow from January 15, Philip Hedges, BMI's Marketing Manager for the Middle East and Africa, told AME Info. The Riyadh to Heathrow leg will increase from three services a week to six, providing a daily service with the exception of Saturday. Return services from Heathrow to Riyadh will operate daily with the exception of Friday. The service originating from Heathrow will go onwards to Dammam on Monday, Wednesday and Saturday, and to Jeddah on Tuesday, Thursday and Sunday. The latter replacing the current three day a week non-stop service. BMI flies eight times a day to the Middle East, the most of any UK carrier, Hedges said.