Several domestic carriers operate in Bangladesh, with flights to and from Dhaka to the country's other major cities, all less than an hour away by air. Some of the listed airlines operate International flights also.
Biman Bangladesh (www.biman-airlines.com),
GMG Airlines (www.gmgairlines.com),
Regent airways (www.flyregent.com),
United Airways (www.uabdl.com),
US-Bangla Airlines Ltd. (www.us-banglaairlines.com) etc.