Flight Reliability
F9 1677 · Frontier Airlines
Des Moines → Denver (DSM–DEN)
82
Pretty Reliable
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0%
- Cancelled
- 11 min early
- Median arrival delay
Based on 146 historical flights. Data through May 2026.
What the data says
The 12–3 PM departure wins.
F9 1677 departing between 12–3 PM arrived on time 92% of the time, versus 63% between 6–9 PM.
Friday is doing you no favors.
F9 1677 arrived on time 94% of the time on Sundays and just 69% on Fridays. That gap is worth planning around.
Lagging the DSM–DEN route.
F9 1677 arrived on time 75% of the time, versus 84% across the DSM–DEN route.
It basically never cancels.
Out of 146 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon70%(47 flights)
- Tue—(1 flights)
- Wed—(7 flights)
- Thu71%(17 flights)
- Fri69%(49 flights)
- Sat—(7 flights)
- Sun94%(18 flights)
- 12–3 PM92%(60 flights)
- 3–6 PM—(6 flights)
- 6–9 PM63%(80 flights)
90%
May
Aug 46% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 46% | 13 |
| September 2025 | 77% | 17 |
| October 2025 | 95% | 21 |
| November 2025 | 100% | 15 |
| December 2025 | 70% | 10 |
| February 2026 | 50% | 10 |
| March 2026 | 89% | 18 |
| May 2026 | 90% | 10 |
- Departures on time
- 75%
- Diverted
- 0%
- Flights flown
- 146
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 146 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.