SUM Air orders up to eight ATR 72-600s to build regional turboprop fleet; deliveries cited from 2028
SUM Air has moved to secure its launch fleet with ATR 72-600 turboprops, ordering up to eight aircraft; coverage varies between a four‑firm plus four‑option deal and reports of eight firm with further options. The acquisition underpins the carrier’s regional network rollout, with deliveries cited beginning in 2028.