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

Oklahoma City, OK (OKC) to St. Louis, MO (STL) flight delay odds

87.5% of 472 official scheduled OKC-to-STL flights arrived on time; 6.8% arrived at least 30 minutes late and 1.5% 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
87.5%arrived on time
6.8%30+ min late
1.5%cancelled
472scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.2%all scheduled flights
120+ minutes late1.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-2.2 mincompleted flights

Which departure time was most reliable for OKC to STL?

Among qualifying OKC-to-STL departure window results, Early morning had the highest on-time rate: 94.7% of 247 flights. Evening was lowest at 70.2% across 121 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24794.7%1.6%1.6%
Afternoon10390.3%3.9%1.9%
Evening12170.2%19.8%0.8%

Which weekday was most reliable for OKC to STL?

Among qualifying OKC-to-STL weekday results, Wednesday had the highest on-time rate: 95.8% of 71 flights. Sunday was lowest at 79.2% across 72 flights.

DayFlightsOn time30+ minCancelled
Monday7085.7%10.0%0.0%
Tuesday7294.4%4.2%0.0%
Wednesday7195.8%0.0%0.0%
Thursday7085.7%8.6%1.4%
Friday6988.4%4.3%1.4%
Saturday4881.2%8.3%6.2%
Sunday7279.2%12.5%2.8%

Which airline was most reliable for OKC to STL?

Only Southwest Airlines met the OKC-to-STL airline threshold: 87.5% of 471 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines47187.5%6.8%1.5%
Envoy Air1100.0%0.0%0.0%

Which month was most reliable for OKC to STL?

Among qualifying OKC-to-STL month results, September 2025 had the highest on-time rate: 92.9% of 56 flights. July 2025 was lowest at 77.0% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256177.0%14.8%3.3%
August 20255891.4%8.6%0.0%
September 20255692.9%0.0%0.0%
October 20255886.2%6.9%0.0%
November 20255986.4%8.5%1.7%
December 20256086.7%8.3%0.0%
January 20265886.2%1.7%6.9%
February 20265592.7%5.5%0.0%

What drove OKC to STL delay minutes?

Late aircraft was the largest recorded OKC-to-STL delay category, accounting for 54.7% of 2,718 BTS-attributed delay minutes during July 2025–June 2026.

Airline30.0%
Late aircraft54.7%
National airspace8.7%
Weather6.5%
Security0.0%
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.