Flight Reliability
F9 2143 · Frontier Airlines
Atlanta → Chicago (ATL–MDW)
76
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 20 min
- Average arrival delay
- 0%
- Cancelled
- 4 min
- Median arrival delay
Based on 30 historical flights. Data through May 2026.
What the data says
A bit behind the ATL–MDW route.
F9 2143 arrived on time 73% of the time, versus 77% across the ATL–MDW route.
The breakdown
- Mon—(5 flights)
- Tue—(4 flights)
- Wed—(5 flights)
- Thu—(5 flights)
- Fri—(5 flights)
- Sat—(4 flights)
- Sun—(2 flights)
- 6–9 AM—(8 flights)
- 12–3 PM69%(13 flights)
- 3–6 PM—(7 flights)
- 6–9 PM—(2 flights)
- Departures on time
- 60%
- Diverted
- 0%
- Flights flown
- 30
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 30 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.