Oklahoma City (OKC) to St. Louis (STL): On-Time Performance
Data through May 2026
When you fly OKC to STL matters as much as anything else about the booking: the route swung from 98% on-time in March 2025 to just 73% in April 2025. Across the full period the route averages 89% on-time against a national 78%. Morning departures also hold up better than evening ones (95% vs 75%), which matters most in the rough months.
- On-time
- 89%
- arrived <15 min late
- Avg delay
- 7 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.5
- last 12 months
- Duration
- 1h 26m
- scheduled
- Distance
- 462 mi
Monthly on-time trend
Best time to fly from OKC to STL
Aim for departures around 8 a.m. (97% on-time); avoid 5 p.m. departures (71%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 90% | 6 min |
| Tuesdaybest | 93% | 6 min |
| Wednesday | 90% | 5 min |
| Thursday | 87% | 6 min |
| Friday | 88% | 6 min |
| Saturday | 91% | 5 min |
| Sunday | 82% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft58%
- Airline operations22%
- National airspace system11%
- Weather9%
Frequently asked questions
- How often are flights from OKC to STL delayed?
- 12% of OKC–STL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 7 minutes.
- What is the best time of day to fly from OKC to STL?
- Departures around 8 a.m. have the best record (97% on-time), while departures around 5 p.m. have the worst (71%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from OKC to STL?
- The scheduled OKC–STL flight time averages 1h 26m over 462 miles. Actual arrival times vary — flights on this route land 15+ minutes late 12% of the time.
- How often are OKC to STL flights cancelled?
- 1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from OKC to STL?
- April 2025 was the roughest month in this dataset, with only 73% of arrivals on time. The best was March 2025 at 98%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 1,225 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.