Historical on-time performance
Oklahoma City to St. Louis
462 miData through May 2026Source: US DOT · BTS
Flights on OKC–STL arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 524 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time86%Medianon timep9020 minCancel1.3%Flights524
Why flights run late
Delay causes
- Airline22%
- Weather8%
- Air traffic (NAS)8%
- Late aircraft62%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly OKC → STL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 94% on time.
- Mornings94% on time · p90 on time · 1,007 flights
- Afternoons87% on time · p90 15 min · 318 flights
- Evenings73% on time · p90 40 min · 582 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 90% on time.
- Wednesdays90% on time · p90 15 min · 287 flights
- Saturdays90% on time · p90 5 min · 186 flights · limited
- Tuesdays89% on time · p90 15 min · 287 flights
- Mondays87% on time · p90 15 min · 288 flights
- Thursdays86% on time · p90 20 min · 288 flights
- Fridays86% on time · p90 20 min · 287 flights
- Sundays81% on time · p90 25 min · 290 flights
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