Orlando (MCO) to St. Louis (STL): On-Time Performance
Data through July 2026
Orlando (MCO) to St. Louis (STL) effectively runs on two schedules. In November 2024, 91% of arrivals were on time; in July 2026 that fell to 67% — a 24-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 65%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 6.8
- last 12 months
- Duration
- 2h 38m
- scheduled
- Distance
- 882 mi
Best airline from MCO to STL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 87% | 7 min | 4.5% | 88 |
| Southwest Airlines | 77% | 15 min | 1.0% | 4,219 |
| Frontier Airlines | 74% | 22 min | 1.4% | 778 |
Monthly on-time trend
Best time to fly from MCO to STL
Aim for departures around 6 a.m. (97% on-time); avoid 10 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 20 min |
| Tuesday | 84% | 10 min |
| Wednesdaybest | 85% | 9 min |
| Thursday | 79% | 14 min |
| Friday | 77% | 15 min |
| Saturday | 75% | 16 min |
| Sunday | 69% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft50%
- Airline operations31%
- National airspace system12%
- Weather6%
- 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 2024-07 and 2026-07. 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 87%, based on 88 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 10 p.m. have the worst (61%). 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 38m 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?
- 1.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from MCO to STL?
- July 2026 was the roughest month in this dataset, with only 67% of arrivals on time. The best was November 2024 at 91%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 5,085 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.