Flight Reliability
F9 4833 · Frontier Airlines
Boston → Cleveland (BOS–CLE)
82
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.0%
- Cancelled
- 5 min early
- Median arrival delay
Based on 98 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
F9 4833 departing between 12–3 PM arrived on time 81% of the time, versus 64% between 6–9 AM.
Friday is doing you no favors.
F9 4833 arrived on time 85% of the time on Thursdays. On Fridays: 75%.
A bit ahead of the Frontier Airlines network.
F9 4833 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon79%(19 flights)
- Tue—(1 flights)
- Wed—(0 flights)
- Thu85%(26 flights)
- Fri75%(20 flights)
- Sat—(2 flights)
- Sun79%(29 flights)
- 6–9 AM64%(14 flights)
- 9 AM–12 PM—(9 flights)
- 12–3 PM81%(74 flights)
88%
Nov
Aug 83% → Nov 88% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 83% | 12 |
| September 2025 | 77% | 17 |
| October 2025 | 83% | 18 |
| November 2025 | 88% | 17 |
- Departures on time
- 73%
- Diverted
- 0%
- Flights flown
- 97
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 98 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.