Delta Airlines operates from Atlanta, Georgia and it is a large network of domestic and international operations serving almost all the continents of the earth, employing 80000 people, operating 4000 or so flights every day, claiming to be the sixth old operating airline since it commenced its operations, being the oldest airline in the United States still operating proficiently.

Delta Airlines is one of the founding members of SkyTeam alliance and it operates the Frequent Flyer program SkyMiles, having code share agreements with eleven international airline companies.

Delta Airlines maintains a fleet size of 710 aircrafts, serving 247 destinations throughout the world and it also subcontracts most of its daily departures to seven different airlines which are together referred as Delta Connection.

Delta Airlines flights have five distinct travel classes, namely
€Business Elite
€Domestic First Class
€Economy Comfort Class
€International Economy Class
€Domestic Economy Class

and each of the above classes having distinct inflight features right from seat adjustments, privacy, inflight entertainment and inflight catering.

Delta Airlines acquired another big aircraft company Northwest Airlines with an aim of becoming the world's largest airline in terms of passengers travelling, however it could become only the second largest airline in passenger traffic although it stands first as the world's largest airline in terms of fleet size.

SriLankan Airlines is the state owned flag carrier of Sri Lanka, which was formed in 1979 as Air Lanka after Air Ceylon closed its operations in 1978, later partly privatized with the participation of Emirates Group by Sri Lankan Government signing an agreement with Emirates for a ten year strategic partnership, which ended and not renewed in 2008, thereafter Sri Lankan Airways independently looks after its management.

Sri Lankan Airlines operates its 22 flights from its basic hub at Colombo's Bandaranaike International Airport, touching 61 destinations in 35 countries and it maintains its status as the largest foreign carrier operating in Maldives with minimum of 32 flights every week from Male to Colombo.

Sri Lankan airlines has six subsidiaries, namely
€SriLankan Cargo
€SriLankan Catering
€SriLankan Engineering
€SriLankan Ground handling
€SriLankan Holidays
€SriLankan IT systems

and it has code share agreements with nine international airline companies.

SriLankan Airlines was affected by environmental mishaps and also acts of terrorism more than once, which include SARS outbreak, the 2004 Indian Ocean Earthquake, the Sri Lankan Civil War and also a terrorist attack on Bandaranaike International airport which wiped of nearly 50% of its fleet, by destroying completely four aircrafts and damaging another two.