Jin Air - a subsidiary of Korean Air. This Korean Low Cost Carrier was set up to compete with the local LCCs such as Jeju Air, Air Busan (Subsidiary of Asiana), T'Way and Eastar Jet. Competition in South Korean aviation is intense that's why standard with these airlines are often high.
Operating with a fleet of Boeing 737-800 and Boeing 777-200ER (Extended Range), these aircraft were transferred from its parent airline, that's why the interior is similar to it, only the head cover is different. I got to fly on this airline twice from Gimpo to Jeju and return on both 737-800 and 777-200ER and here is my observation.
The Boeing 737-800 type dominates the fleet and it flies on Hong Kong to Seoul Incheon sector. I wanted to book with this airline but the airfare is quite expensive. The seat pitch is the standard for LCCs, a tight 30' inch so don't expect much. You can pay for entertainment by renting a mini tablet and in-flight meals, there is a menu on this on the seat pouch. Service - you can expect a set of professional and friendly crew taking care of you.
As for the airline's Boeing 777. It flies on longer routes and also on Gimpo to Jeju route, but not to Hong Kong. What is unique about this aircraft is it has both 2-5-2 (first and second section) and 3-4-3 (last section) seating configuration. So if you get to fly this aircraft, I recommend the 2-5-2 if you are flying solo or with a partner.
Overall, my experience with this carrier is an excellent one and I highly recommend this airline for its efficiency and excellent safety record. read more