STL to MCO flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Orlando International Airport · 882 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or MCO right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Louis (STL) to Orlando (MCO) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.9% were cancelled, and 7% arrived an hour or more late.
- Southwest Airlines was the most punctual airline here (79% on time); Frontier Airlines was the least (72%).
- Departures scheduled around 5am did best (96% on time); around 8pm did worst (62%).
- Wednesday was the most reliable day to fly (88% on time) and Saturday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (50%).
Which airline is most on time from STL to MCO?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 79% | 0.6% | 14 min | 6.8% | 2,122 |
| Frontier Airlines | 72% | 2.8% | 22 min | 10.4% | 395 |
| Spirit Airlines | 67% | 0.0% | 8 min | 0.0% | 3 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am96%306 flights
- 6am93%102 flights
- 7am83%146 flights
- 8am85%136 flights
- 9am83%126 flights
- 10am88%154 flights
- 11am82%62 flights
- 12pm79%112 flights
- 1pm70%77 flights
- 2pm70%148 flights
- 3pm67%218 flights
- 4pm72%287 flights
- 5pm66%220 flights
- 6pm74%198 flights
- 7pm73%84 flights
- 8pm62%134 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%1.8% cancelled
- Tuesday85%0.3% cancelled
- Wednesday88%0.3% cancelled
- Thursday79%0.0% cancelled
- Friday75%0.5% cancelled
- Saturday71%0.8% cancelled
- Sunday77%2.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft50%
- Airline (crew, maintenance, cleaning, fueling)26%
- Air traffic control & airport congestion21%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)39%
- Extreme weather35%
- Air traffic control & airport congestion26%
- Security0%
STL to MCO: common questions
- How often are STL to MCO flights on time?
- 78% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Louis to Orlando cancelled?
- 0.9% of scheduled flights were cancelled (23 of 2,520).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 63 min behind schedule on average, and 7.3% of flights were an hour or more late.
- How long is taxi time at STL?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MCO to STL — 76% on time
More flights from St. Louis
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STL → MCO, nonstop flights by US airlines that report to the DOT. How we calculate this.