Flight Reliability
F9 1587 · Frontier Airlines
Tulsa → Denver (TUL–DEN)
82
Pretty Reliable
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0%
- Cancelled
- 10 min early
- Median arrival delay
Based on 42 historical flights. Data through May 2026.
What the data says
The late departure is the smart one here.
F9 1587 departing between 6–9 PM arrived on time 76% of the time, versus 67% between 12–3 PM.
Sunday scaries are real for this one.
F9 1587 arrived on time 83% of the time on Thursdays and just 60% on Sundays. That gap is worth planning around.
A bit behind the TUL–DEN route.
F9 1587 arrived on time 74% of the time, versus 80% across the TUL–DEN route.
The breakdown
- Mon—(0 flights)
- Tue—(4 flights)
- Wed—(0 flights)
- Thu83%(18 flights)
- Fri—(0 flights)
- Sat—(0 flights)
- Sun60%(20 flights)
- 12–3 PM67%(12 flights)
- 3–6 PM—(1 flights)
- 6–9 PM76%(29 flights)
- Departures on time
- 74%
- Diverted
- 0%
- Flights flown
- 42
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 42 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.