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

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

79.7% of 473 official scheduled STL-to-OKC flights arrived on time; 9.5% arrived at least 30 minutes late and 1.3% 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 SIGNALGenerally reliable
79.7%arrived on time
9.5%30+ min late
1.3%cancelled
473scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.2%all scheduled flights
120+ minutes late1.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+2.6 mincompleted flights

Which departure time was most reliable for STL to OKC?

Among qualifying STL-to-OKC departure window results, Late morning had the highest on-time rate: 89.4% of 218 flights. Night was lowest at 64.9% across 134 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning21889.4%2.3%0.9%
Evening8878.4%13.6%1.1%
Night13464.9%17.9%1.5%

Which weekday was most reliable for STL to OKC?

Among qualifying STL-to-OKC weekday results, Wednesday had the highest on-time rate: 86.1% of 72 flights. Sunday was lowest at 72.9% across 70 flights.

DayFlightsOn time30+ minCancelled
Monday7078.6%8.6%0.0%
Tuesday7284.7%6.9%0.0%
Wednesday7286.1%6.9%0.0%
Thursday7080.0%10.0%1.4%
Friday7178.9%5.6%1.4%
Saturday4875.0%12.5%4.2%
Sunday7072.9%17.1%2.9%

Which airline was most reliable for STL to OKC?

Only Southwest Airlines met the STL-to-OKC airline threshold: 79.7% of 472 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines47279.7%9.5%1.3%
Envoy Air1100.0%0.0%0.0%

Which month was most reliable for STL to OKC?

Among qualifying STL-to-OKC month results, November 2025 had the highest on-time rate: 93.2% of 59 flights. July 2025 was lowest at 68.9% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256168.9%16.4%1.6%
August 20255869.0%13.8%1.7%
September 20255680.4%10.7%0.0%
October 20255879.3%6.9%0.0%
November 20255993.2%3.4%1.7%
December 20256075.0%11.7%0.0%
January 20265882.8%6.9%5.2%
February 20265590.9%5.5%0.0%

What drove STL to OKC delay minutes?

Late aircraft was the largest recorded STL-to-OKC delay category, accounting for 68.4% of 4,057 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.3%
Late aircraft68.4%
National airspace5.5%
Weather1.8%
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.