Global air traffic doubles every 15 years. Therefore, aviation emission grows as well. It is advisable to look for an alternative aircrafts’ propulsion for both commercial and general aviation (usually flying closer to the ground). There are many prototypes proposed by homemade projects, through companies wanting to extend their offer. There are also several more advanced constructions ready to self-set or serially produced. In the article the main topic are electric aircrafts as an example of possibility to reduce the toxic compounds emission. According to the analysis some of companies specializing in unmanned aircraft production, starting to expand their business with manned products. In the article, analyses of electric aircrafts different models, which are available on market and presented the comparisons characteristics based on e.g. cruise speed, range for every model or charging time were made and conclusions about alternative aircraft propulsions, were made.