Flight Reliability
F9 3857 · Frontier Airlines
Raleigh–Durham → Indianapolis (RDU–IND)
66
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 5.4%
- Cancelled
- 8 min early
- Median arrival delay
Based on 56 historical flights. Data through May 2026.
What the data says
A bit behind the RDU–IND route.
F9 3857 arrived on time 79% of the time, versus 83% across the RDU–IND route.
A bit ahead of the Frontier Airlines network.
F9 3857 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon76%(21 flights)
- Tue—(0 flights)
- Wed—(1 flights)
- Thu—(6 flights)
- Fri78%(18 flights)
- Sat—(0 flights)
- Sun—(7 flights)
- 9 AM–12 PM—(5 flights)
- 12–3 PM—(3 flights)
- 3–6 PM80%(10 flights)
- 6–9 PM77%(35 flights)
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 53
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 56 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.