Flight Reliability
AA 4027 · American Airlines
SGF → Chicago (SGF–ORD)
94
Nerd Approved
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 0%
- Cancelled
- 11 min early
- Median arrival delay
Based on 44 historical flights. Data through May 2026.
What the data says
Well ahead of the SGF–ORD route.
AA 4027 arrived on time 86% of the time, versus 70% across the SGF–ORD route.
Better than the American Airlines network average.
AA 4027 arrived on time 86% of the time, versus 77% across the American Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(7 flights)
- Wed—(7 flights)
- Thu—(6 flights)
- Fri—(6 flights)
- Sat—(6 flights)
- Sun—(6 flights)
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 44
- Months covered
- 2
Same route, other flights
Keep nerding
Based on 44 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.