Historical on-time performance
St. Louis to Oklahoma City
462 miData through Dec 2025Source: US DOT · BTS
Flights on STL–OKC arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 695 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel1.2%Flights695
Why flights run late
Delay causes
- Airline26%
- Weather4%
- Air traffic (NAS)7%
- Late aircraft63%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly STL → OKC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 64% to 88% on time.
- Middays88% on time · p90 15 min · 877 flights
- Mornings86% on time · p90 15 min · 206 flights
- Overnights64% on time · p90 55 min · 961 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 81% on time.
- Saturdays81% on time · p90 20 min · 194 flights · limited
- Wednesdays81% on time · p90 25 min · 314 flights
- Tuesdays78% on time · p90 30 min · 313 flights
- Thursdays76% on time · p90 35 min · 312 flights
- Mondays75% on time · p90 30 min · 314 flights
- Fridays74% on time · p90 45 min · 313 flights
- Sundays71% on time · p90 45 min · 305 flights
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