Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Surabaya to Kerala as you normally would.
Most people fly from Surabaya Juanda (SUB) if they book a flight from Surabaya to Kerala. Surabaya Juanda is conveniently located just 15.0 km from Surabaya’s city centre.
SUB and COK are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SUB to COK refers to a flight route from Surabaya Juanda Airport to Kochi Airport. Thiruvananthapuram Airport (TRV), Kozhikode Airport (CCJ), Kannur Intl Airport (CNN) are some additional IATA codes for airports related to your trip.