Flight Reliability
F9 4210 · Frontier Airlines
Atlanta → Cleveland (ATL–CLE)
80
Pretty Reliable
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.0%
- Cancelled
- 5 min early
- Median arrival delay
Based on 104 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 4210 departing between 3–6 AM arrived on time 92% of the time, versus 72% between 3–6 PM.
Tuesday has been the better bet.
A small edge: 80% on time on Tuesdays against 75% on Wednesdays.
A bit behind the ATL–CLE route.
F9 4210 arrived on time 76% of the time, versus 80% across the ATL–CLE route.
The breakdown
- Mon—(6 flights)
- Tue80%(30 flights)
- Wed75%(28 flights)
- Thu—(7 flights)
- Fri—(8 flights)
- Sat80%(15 flights)
- Sun—(9 flights)
- 3–6 AM92%(12 flights)
- 6–9 AM—(1 flights)
- 9 AM–12 PM—(4 flights)
- 12–3 PM87%(15 flights)
- 3–6 PM72%(71 flights)
83%
May
Jul 70% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| July 2025 | 70% | 10 |
| January 2026 | 73% | 11 |
| February 2026 | 81% | 16 |
| April 2026 | 85% | 13 |
| May 2026 | 83% | 18 |
- Departures on time
- 75%
- Diverted
- 0%
- Flights flown
- 103
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 104 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.