St. Louis (STL) to Oklahoma City (OKC): On-Time Performance
Data through July 2026
When you fly STL to OKC matters as much as anything else about the booking: the route swung from 95% on-time in November 2025 to just 58% in July 2024. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 70%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 1.1
- last 12 months
- Duration
- 1h 33m
- scheduled
- Distance
- 462 mi
Monthly on-time trend
Best time to fly from STL to OKC
Aim for departures around 10 a.m. (92% on-time); avoid 9 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 9 min |
| Tuesday | 84% | 9 min |
| Wednesdaybest | 85% | 7 min |
| Thursday | 80% | 11 min |
| Friday | 80% | 11 min |
| Saturday | 77% | 13 min |
| Sunday | 75% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft66%
- Airline operations25%
- National airspace system7%
- Weather3%
Frequently asked questions
- How often are flights from STL to OKC delayed?
- 20% of STL–OKC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from STL to OKC?
- Departures around 10 a.m. have the best record (92% on-time), while departures around 9 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from STL to OKC?
- The scheduled STL–OKC flight time averages 1h 33m over 462 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are STL to OKC flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from STL to OKC?
- July 2024 was the roughest month in this dataset, with only 58% of arrivals on time. The best was November 2025 at 95%. If your dates are flexible, that 37-point gap is worth planning around.
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Based on 1,167 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.