Airports / St. Charles, St. Charles County Smartt Airport
St. Charles, St. Charles County Smartt Airport(KSET)
Alton, United States
Last updated: Mar 15, 2026
Activity Summary
Airport Patterns
Emissions up 887% vs prior period — significantly busier than prior period
Charter/owner classification not available for this airport's flights
Spikes
Significant deviations from this airport's baseline in the selected period.
CO₂ Above Baseline
69t
Signals Detected
5
Highest Severity
High
Elevated activity Sep 9, 2025 – Sep 15, 2025 — 7 flights in 7 days vs baseline of 2
7 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 236%.
12.1t CO₂
Elevated activity Aug 4, 2025 – Aug 10, 2025 — 5 flights in 7 days vs baseline of 2
5 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 140%.
15.1t CO₂
Elevated activity Sep 2, 2025 – Sep 8, 2025 — 6 flights in 7 days vs baseline of 2
6 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 188%.
17.6t CO₂
Single high-emission departure N613JR → PANC on Aug 14, 2025 — 16.0t CO₂, 100% of day's total
Aircraft N613JR departing to PANC produced 16.0t CO₂, representing 100% of all airport emissions on Aug 14, 2025.
16.0t CO₂
16-day gap in recorded activity ending Sep 30, 2025
Airport had 16 consecutive days with zero recorded flights before activity resumed on Sep 30, 2025.
8.7t CO₂
Route Map
KSET to KLGB · 1,575 miles
Total Flights
2
Avg CO₂/Flight
11.4t
Total Emissions
22.7t CO₂
KSET to PANC · 2,917 miles
Total Flights
1
Avg CO₂/Flight
16.0t
Total Emissions
16.0t CO₂
KSET to KDAL · 553 miles
Total Flights
5
Avg CO₂/Flight
3.0t
Total Emissions
14.8t CO₂
KSET to KPHX · 1,258 miles
Total Flights
1
Avg CO₂/Flight
12.3t
Total Emissions
12.3t CO₂
KSET to KAPA · 772 miles
Total Flights
2
Avg CO₂/Flight
5.7t
Total Emissions
11.3t CO₂
KSET to KAUS · 730 miles
Total Flights
3
Avg CO₂/Flight
3.6t
Total Emissions
10.7t CO₂
Recent Flights
10 total flights recordedShowing most recent flights — not filtered by viewing period