Please uncheck any airports you do not want in your selection, and then press the 'Show me how to get from Blr to Wlm' button at the bottom of the screen.

Matches for BLR as three letter airport code or city name

Include	Airport name	Airport code	City	Country
	HAL - Hindustan Airport	BLR	Bangalore	India

Matches for WLM as three letter airport code or city name

Include	Airport name	Airport code	City	Country
	Waltham Airport	WLM	Waltham MA	United States