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

St. Louis, MO (STL) to Columbus, OH (CMH) flight delay odds

81.3% of 674 official scheduled STL-to-CMH flights arrived on time; 9.9% arrived at least 30 minutes late and 0.3% 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 SIGNALLower disruption
81.3%arrived on time
9.9%30+ min late
0.3%cancelled
674scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.6%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+2.8 mincompleted flights

Which departure time was most reliable for STL to CMH?

Among qualifying STL-to-CMH departure window results, Early morning had the highest on-time rate: 92.9% of 224 flights. Evening was lowest at 70.2% across 319 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning22492.9%3.6%0.4%
Late morning11090.9%5.5%0.0%
Evening31970.2%15.7%0.3%

Which weekday was most reliable for STL to CMH?

Among qualifying STL-to-CMH weekday results, Wednesday had the highest on-time rate: 87.5% of 104 flights. Monday was lowest at 74.0% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10474.0%15.4%0.0%
Tuesday10681.1%10.4%0.0%
Wednesday10487.5%6.7%0.0%
Thursday10381.6%9.7%0.0%
Friday10386.4%5.8%0.0%
Saturday5284.6%9.6%0.0%
Sunday10275.5%11.8%2.0%

Which airline was most reliable for STL to CMH?

Only Southwest Airlines met the STL-to-CMH airline threshold: 81.3% of 674 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines67481.3%9.9%0.3%

Which month was most reliable for STL to CMH?

Among qualifying STL-to-CMH month results, September 2025 had the highest on-time rate: 94.6% of 56 flights. June 2026 was lowest at 64.3% across 56 flights.

MonthFlightsOn time30+ minCancelled
July 20255775.4%8.8%0.0%
August 20255687.5%8.9%0.0%
September 20255694.6%0.0%0.0%
October 20255893.1%3.4%0.0%
November 20255479.6%13.0%0.0%
December 20255879.3%13.8%0.0%
January 20265786.0%7.0%3.5%
February 20265276.9%0.0%0.0%
March 20265875.9%15.5%0.0%
April 20265682.1%12.5%0.0%
May 20265680.4%8.9%0.0%
June 20265664.3%26.8%0.0%

What drove STL to CMH delay minutes?

Late aircraft was the largest recorded STL-to-CMH delay category, accounting for 59.2% of 5,949 BTS-attributed delay minutes during July 2025–June 2026.

Airline31.8%
Late aircraft59.2%
National airspace6.4%
Weather2.1%
Security0.5%
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.