In Air India's trademark style, the inaugural flight was operated by an all-woman crew.
The national carrier has been expanding its international operations and has started services to overseas destinations, including Washington and Stockholm so far this year.
Copenhagen, the capital of Denmark, is Air India's 44th international destination and 11th European non-stop destination.
The iconic "Little Mermaid" statue in Copenhagen is one of the city's most famous monuments. The bronze structure sits on a rock by waterside in the city and represents a famous character from a fairy tale written by Danish author Hans Christian Andersen.
"AI 157 will depart from Delhi at 1430 hours to reach Copenhagen at 1845 hours the same day. The return flight AI 158 will leave Copenhagen at 2045 hours and reach Delhi at 0735 hours the next day," the airline said in a release.
Apart from Copenhagen, the airline has direct flights to Stockholm, Madrid, Vienna, Rome, Milan, Frankfurt, Paris, Birmingham and London.
The services to Moscow are temporarily suspended and would restart in October, an airline official said.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)