Cheap KSM to Decatur flights

Book your KSM to DEC flights with Expedia and find last-minute St. Marys to Decatur airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between KSM and DEC, with new flight deals and promotions almost daily. When you book your next trip from St. Marys AK to Decatur IL with Expedia, you can rest assured you’re getting great ticket prices and excellent service from one of the world’s most trusted travel providers.

Popular Flights from St. Marys, Alaska

Browse popular flight destinations from St. Marys (KSM), and plan your next exciting trip. Expedia has cheap flights from St. Marys on multiple airline carriers, so book your next trip today!

Popular Flights from Decatur, Illinois

Browse popular flight destinations from Decatur (DEC), and plan your next exciting trip. Expedia has cheap flights from Decatur on multiple airline carriers, so book your next trip today!

KSM to DEC Route Map

St. Marys to Decatur Flights, Stats and Airplanes

Route information for flights from St. Marys AK to Decatur IL.

Destination:
Distance:
3,351.79 miles

KSM - St. Marys AK Airlines

Browse the most popular airlines servicing the St. Marys (KSM) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.