Flight Reliability
F9 2636 · Frontier Airlines
St. Louis → Orlando (STL–MCO)
68
Usually Fine
WanderNerd Reliability Score
- 71%
- Arrive within 15 minutes
- 21 min
- Average arrival delay
- 1.4%
- Cancelled
- 6 min early
- Median arrival delay
Based on 140 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 6–9 AM arrived on time 73% of the time, against 70% between 3–6 PM.
Friday is doing you no favors.
F9 2636 arrived on time 86% of the time on Thursdays and just 58% on Fridays. That gap is worth planning around.
Lagging the STL–MCO route.
F9 2636 arrived on time 71% of the time, versus 78% across the STL–MCO route.
Trending in the right direction.
F9 2636 arrived on time 78% of the time over the last three months in the data, compared with 61% in the three months before that.
The breakdown
- Mon60%(25 flights)
- Tue83%(12 flights)
- Wed85%(13 flights)
- Thu86%(21 flights)
- Fri58%(24 flights)
- Sat68%(22 flights)
- Sun71%(21 flights)
- 6–9 AM73%(11 flights)
- 9 AM–12 PM—(3 flights)
- 3–6 PM70%(122 flights)
- 6–9 PM—(2 flights)
92%
May
Dec 59% → May 92% on time
| Month | On-time percentage | Flights |
|---|---|---|
| December 2025 | 59% | 17 |
| January 2026 | 60% | 25 |
| February 2026 | 64% | 22 |
| March 2026 | 64% | 22 |
| April 2026 | 78% | 23 |
| May 2026 | 92% | 25 |
- Departures on time
- 72%
- Diverted
- 0%
- Flights flown
- 138
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 140 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.