Flight Reliability
F9 4830 · Frontier Airlines
Seattle → Las Vegas (SEA–LAS)
45
Bring Snacks
WanderNerd Reliability Score
- 64%
- Arrive within 15 minutes
- 47 min
- Average arrival delay
- 2.2%
- Cancelled
- 1 min early
- Median arrival delay
Based on 134 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
F9 4830 departing between 12–3 PM arrived on time 88% of the time, versus 56% between 3–6 PM.
Skip Monday if you can.
F9 4830 arrived on time 70% of the time on Sundays. On Mondays: 57%.
Lagging the SEA–LAS route.
F9 4830 arrived on time 64% of the time, versus 77% across the SEA–LAS route.
Lagging the Frontier Airlines network.
F9 4830 arrived on time 64% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon57%(28 flights)
- Tue—(5 flights)
- Wed—(1 flights)
- Thu66%(29 flights)
- Fri60%(30 flights)
- Sat—(8 flights)
- Sun70%(30 flights)
- 12–3 PM88%(16 flights)
- 3–6 PM56%(59 flights)
- 6–9 PM58%(36 flights)
- 9 PM–12 AM80%(20 flights)
75%
Jan
Jun 35% → Jan 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 35% | 17 |
| July 2025 | 56% | 16 |
| August 2025 | 77% | 17 |
| September 2025 | 69% | 16 |
| October 2025 | 69% | 16 |
| November 2025 | 86% | 14 |
| December 2025 | 47% | 15 |
| January 2026 | 75% | 12 |
- Departures on time
- 60%
- Diverted
- 0%
- Flights flown
- 131
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 134 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.