By plane
Osmani International Airport ICAO: ZYL is served by all major domestic carriers, Biman Air (http://www.bimanair.com/), GMG Airlines (http://www.gmgairlines.com/), Regent Airways (http://flyregent.com/) and Royal Bengal Airlines. Please check the airline's website for latest schedule.
By train
There are train services from Dhaka, Chittagong and Comilla to Sylhet everyday. From Dhaka, there are three trains named Joyontika, Parabat and Upoban depart at morning, noon and evening.
By bus
There are many luxury coach and bus services from Dhaka to Sylhet. Some notable services are Hanif, Shohag Poribahan, Green Line etc. These services are available from 7:30 am to 10:30 pm. For latest schedule it is recommended to contact with particular company.
For budget travelers , there are non AC bus services available from the Sayedabad bus terminal locally known as a Jonopath Mor, near Sayedabad Hujur's Mosque which depart every half hour from 6 am to midnight. Efficient budget bus service companies are Hanif, Unique Service etc.