BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MCO→STL

Orlando, FL (MCO) to St. Louis, MO (STL) flight delay odds

76.1% of 2,485 official scheduled MCO-to-STL flights arrived on time; 15.6% arrived at least 30 minutes late and 0.8% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
76.1%arrived on time
15.6%30+ min late
0.8%cancelled
2,485scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.7%all scheduled flights
120+ minutes late3.8%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+8.4 mincompleted flights

Which departure time was most reliable for MCO to STL?

Among qualifying MCO-to-STL departure window results, Early morning had the highest on-time rate: 93.8% of 529 flights. Night was lowest at 61.2% across 392 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning52993.8%4.2%0.6%
Late morning36687.2%7.4%0.0%
Afternoon56775.1%16.9%0.2%
Evening63165.0%22.0%1.3%
Night39261.2%26.5%2.0%

Which weekday was most reliable for MCO to STL?

Among qualifying MCO-to-STL weekday results, Wednesday had the highest on-time rate: 87.4% of 309 flights. Sunday was lowest at 67.1% across 380 flights.

DayFlightsOn time30+ minCancelled
Monday37870.9%19.3%1.1%
Tuesday31083.9%11.9%0.3%
Wednesday30987.4%6.8%0.0%
Thursday34880.2%10.1%0.9%
Friday37676.9%14.6%0.5%
Saturday38470.3%20.3%0.8%
Sunday38067.1%23.4%1.8%

Which airline was most reliable for MCO to STL?

Among qualifying MCO-to-STL airline results, Southwest Airlines had the highest on-time rate: 76.8% of 2,081 flights. Frontier Airlines was lowest at 71.6% across 394 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines2,08176.8%14.5%0.7%
Frontier Airlines39471.6%22.1%1.3%
Spirit Airlines10100.0%0.0%0.0%

Which month was most reliable for MCO to STL?

Among qualifying MCO-to-STL month results, September 2025 had the highest on-time rate: 88.5% of 156 flights. August 2025 was lowest at 67.2% across 183 flights.

MonthFlightsOn time30+ minCancelled
July 202520970.8%22.0%1.4%
August 202518367.2%19.7%1.1%
September 202515688.5%5.8%0.0%
October 202519671.4%19.4%0.5%
November 202520382.3%12.8%0.5%
December 202522172.9%18.1%0.5%
January 202621380.8%11.7%0.0%
February 202619679.6%13.3%0.5%
March 202626572.5%18.5%2.3%
April 202622380.7%10.3%0.4%
May 202621676.9%13.0%1.9%
June 202620472.5%20.6%0.0%

What drove MCO to STL delay minutes?

Late aircraft was the largest recorded MCO-to-STL delay category, accounting for 48.8% of 38,795 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.8%
Late aircraft48.8%
National airspace10.6%
Weather5.2%
Security0.7%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.