Southwest Airlines STL to OKC on-time performance
Southwest Airlines nonstop flights from St. Louis to Oklahoma City · Aug 2025 – Jul 2026
On-time arrivals
82%
arrived < 15 min late
Cancelled
1.2%
5 flights
Avg arrival delay
9 min
43 min when late
Rank on route
#2 of 2
route average 82% on time
Key facts
- Southwest Airlines flights on STL to OKC arrived on time 82% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (67%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft67%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion5%
- Extreme weather2%
- Security0%
Other airlines on STL to OKC
- Envoy Air100% on time · 0 min avg delay
Full STL to OKC comparison →
Southwest Airlines on-time record across all routes →
411 Southwest Airlines flights tracked on this route; 5 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.