Historical on-time performance
Orlando to St. Louis
Flights on MCO–STL arrive on time 76% of the time over the last 12 months.
based on 2,390 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Southwest AirlinesOn-time76%Medianon timep9045 minCancel0.7%Flights2,082
- Frontier AirlinesOn-time72%Medianon timep9095 minCancel1.3%Flights308
Why flights run late
Delay causes
- Airline35%
- Weather3%
- Air traffic (NAS)12%
- Late aircraft49%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline26%
- Weather37%
- Air traffic (NAS)37%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 19 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MCO → STL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 10 min · 2,169 flights
- Middays78% on time · p90 40 min · 1,171 flights
- Afternoons68% on time · p90 65 min · 1,185 flights
- Evenings64% on time · p90 65 min · 1,328 flights
- Overnights60% on time · p90 90 min · 1,555 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 81% on time.
- Tuesdays81% on time · p90 40 min · 948 flights
- Wednesdays80% on time · p90 40 min · 944 flights
- Fridays74% on time · p90 50 min · 1,087 flights
- Thursdays73% on time · p90 45 min · 1,059 flights
- Saturdays72% on time · p90 50 min · 1,129 flights
- Mondays71% on time · p90 60 min · 1,070 flights
- Sundays69% on time · p90 70 min · 1,171 flights
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