飞行的 WT6992 科隆机场（科隆） – 索非亚机场（索非亚）由Swiftair 4%次：周一, 期三, 期四, 期五。
航班時間是3小时 35分钟。
回程航班： FR4453, FR8647, WT6991,
所有航班科隆 — 索非亚
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