Spirit Airlines operates from terminal B for arrival and departure of fligts. Boston Logan International Airport is located at East Boston, MA 02128, United States. The IATA code of the Airlines is BOS. The airline uses terminal B for arrival and departure of the flight. For more information you can also visit the official website. For more information you can visit- https://www.airlinesairportsterminal.com/spirit-airlines/spirit-airlines-boston-logan-international-airport-bos-terminal/