Flight Reliability
F9 1020 · Frontier Airlines
Las Vegas → Phoenix (LAS–PHX)
90
Nerd Approved
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 6 min early
- Average arrival delay
- 1.0%
- Cancelled
- 13 min early
- Median arrival delay
Based on 98 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 91% of the time, against 86% between 12–3 PM.
Friday is doing you no favors.
F9 1020 arrived on time 100% of the time on Saturdays and just 77% on Fridays. That gap is worth planning around.
A bit ahead of the LAS–PHX route.
F9 1020 arrived on time 86% of the time, versus 79% across the LAS–PHX route.
Better than the Frontier Airlines network average.
F9 1020 arrived on time 86% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon88%(16 flights)
- Tue—(9 flights)
- Wed92%(12 flights)
- Thu77%(13 flights)
- Fri77%(17 flights)
- Sat100%(11 flights)
- Sun79%(19 flights)
- 6–9 AM—(4 flights)
- 9 AM–12 PM87%(61 flights)
- 12–3 PM86%(21 flights)
- 3–6 PM91%(11 flights)
92%
Apr
Jan 89% → Apr 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| January 2026 | 89% | 18 |
| February 2026 | 96% | 26 |
| March 2026 | 75% | 20 |
| April 2026 | 92% | 24 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 97
- Months covered
- 7
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.