Flight Reliability
F9 1765 · Frontier Airlines
Denver → Las Vegas (DEN–LAS)
81
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 1.4%
- Cancelled
- 7 min early
- Median arrival delay
Based on 71 historical flights. Data through May 2026.
What the data says
3–6 PM has a slight edge.
Departures between 3–6 PM arrived on time 80% of the time, against 74% between 6–9 PM.
Mondays have been rough.
F9 1765 arrived on time 90% of the time on Saturdays and just 73% on Mondays. That gap is worth planning around.
A bit ahead of the Frontier Airlines network.
F9 1765 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon73%(15 flights)
- Tue—(9 flights)
- Wed—(7 flights)
- Thu—(8 flights)
- Fri79%(14 flights)
- Sat90%(10 flights)
- Sun—(7 flights)
- 6–9 AM—(9 flights)
- 12–3 PM—(1 flights)
- 3–6 PM80%(10 flights)
- 6–9 PM74%(50 flights)
- Departures on time
- 71%
- Diverted
- 0%
- Flights flown
- 70
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 71 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.