Buta Airways is an Azerbaijani low-cost virtual carrier, headquartered in Baku, with its primary operational base at Heydar Aliyev International Airport. It is a fully owned subsidiary of Azerbaijan Airlines.

We fled with Buta Airways at the start of August 2019 from Baku - Tbilisi. The flight was served from Heydar Aliyev International Airport Terminal 2. And that's what I really enjoyed - Terminal 2 is quite small, no need to travel long distances to find gates and so on. Really compact and neat.

We bought three adults tickets and paid about $300 for that. Our baby girl (13-month-old) for the first time in her short flying carrier got a separate seat

Air distance between Baku to Tbilisi is about 450 kilometers (280 miles). The flight takes about 1 hour. Despite labeled as a low-cost carrier  - Buta Airways serves free onboard snacks and what's more important has plenty of the legroom. Buta Airways fleet consists of Embraer 190 aircraft., which can take up to 106 passengers. 

The E190/195 models are a larger stretch of the E170/175 models fitted with a new, larger wing, a larger horizontal stabilizer, two emergency overwing exits, and a new engine, the GE CF34-10E, rated at 18,500 lb (82.30 kN). These aircraft compete with the Bombardier CRJ-1000 and Airbus A220-100, the Boeing 717-200 and 737-600, and the Airbus A318. It can carry up to 100 passengers in a two-class configuration or up to 124 in single-class high-density configuration.

By 2018, the first E190s value was below $10 million and can be leased below $100,000, while most recent ones are worth $30 million and can be leased for less than $200,000 per month.

Buta Airways are a quite affordable and very convenient way to travel from Baku to Tbilisi and back in a short time. Highly recommend.