Champaign (CMI) → Alton/St Louis (ALN)
University of Illinois Willard Airport → St Louis Regional Airport
Departure times are local to airport CMI.
Champaign (CMI) — Alton/St Louis (ALN): how long is the flight?
CMI — ALN: scheduled duration in the saved data is 1 hr 24 min, the median of available flights.
CMI — ALN: what is the distance?
The straight-line distance between airports CMI and ALN is about 198 km, not the actual flight path.