Delta to increase daily flights from Harrisburg to Atlanta and Detroit starting this summer

Beginning May 22 and June 7, Delta will increase service between Harrisburg, Detroit and Atlanta, according to HIA.

Up to 17-hour nonstop flights: Delta's 10 new ultra-long routes in 2026

Three of the routes started in 2025 or will do so in 2026, which is a huge proportion. Check them all out!