Hi! Flying Sun Country IAD Terminal was better than expected. The terminal is smaller and less chaotic than others, which was a nice change. Check-in attendants were friendly, and the line wasn't long. Security was quick and stressless. The waiting lounge could use more seating and concessions, but it's tolerable. There isn't a large amount of food or stores close by, so think ahead. For a budget airline, the experience was quite seamless. I'd fly with them again if the fare is affordable and I don't require many frills.