Orlando (MCO) to St. Louis (STL): On-Time Performance
Data through May 2026
Orlando (MCO) to St. Louis (STL) effectively runs on two schedules. In November 2024, 91% of arrivals were on time; in June 2024 that fell to 66% — a 26-point seasonal swing. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 66%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 6.8
- last 12 months
- Duration
- 2h 39m
- scheduled
- Distance
- 882 mi
Best airline from MCO to STL
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 79% | 17 min | 4.7% | 106 |
| Southwest Airlines | 77% | 15 min | 1.0% | 4,019 |
| Frontier Airlines | 76% | 20 min | 1.3% | 742 |
Monthly on-time trend
Best time to fly from MCO to STL
Aim for departures around 6 a.m. (97% on-time); avoid 8 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 19 min |
| Tuesday | 83% | 11 min |
| Wednesdaybest | 84% | 9 min |
| Thursday | 79% | 15 min |
| Friday | 78% | 14 min |
| Saturday | 75% | 15 min |
| Sunday | 71% | 24 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations32%
- National airspace system13%
- Weather5%
- Security1%
Frequently asked questions
- How often are flights from MCO to STL delayed?
- 23% of MCO–STL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 16 minutes.
- Which airline is most reliable from MCO to STL?
- Spirit Airlines has the best on-time record on this route at 79%, based on 106 flights. 3 airlines flew MCO–STL frequently enough to compare in this period.
- What is the best time of day to fly from MCO to STL?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 8 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCO to STL?
- The scheduled MCO–STL flight time averages 2h 39m over 882 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are MCO to STL flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from MCO to STL?
- June 2024 was the roughest month in this dataset, with only 66% of arrivals on time. The best was November 2024 at 91%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 4,867 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.