Originally Posted by Ex Amex Card

No, absolutely not.

Airlines can and do cancel routes. BA Connect just cancelled 900 (nine hundred) flights.

Although they will initially ask for volunteers to be bumped off flights, if there aren't enough seats then they can and do refuse to carry passengers and there is nothing the passenger can do to force them. If there is no seat for the pax then the pax can't travel. End of story.

You will of course be entitled to a refund, rebooking and maybe some compensation.