Think it's UP TO 4 times a day (http://www.britishairways.com/travel...s/public/en_gb)

"A new service will connect Yorkshire with British Airways’ extensive global route network at Heathrow. Up to four flights a day will fly from Heathrow Terminal 1 to Leeds Bradford from 9 December 2012."

I read a rumor that it would eventually move to T5. Am tempted to try to book on the first flight.