Report from the SriLankan Airlines site timed at 15:30(local):
SriLankan Airlines is planning to resume services tomorrow morning (July 25) subject to the Bandaranaike International Airport being re-opened.
The airline is working out an operational plan based on available aircraft, the details of which will be released later in the day. At present however, we have no aircraft in Colombo. All flights out of the country will resume after the arrival of the six aircraft, which are now at overseas destinations.
Of the aircraft on ground at the time of the attack on the Sri Lanka Air Force installation adjacent to the BIA this morning, three aircraft were destroyed and three damaged. The destroyed aircraft include one A340 and two A330s. The damaged aircraft are two A320s and an A340.
No passenger or SriLankan Airlines' airport staff was injured as a result of the terrorist attack today.
All non-resident passengers who were affected by the cancellations and diversions will be accommodated by the airline in hotels. They will be booked on the first available flights to their destinations."
http://www.srilankan.lk/