STL to OKC flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to OKC Will Rogers World Airport · 462 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or OKC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Louis (STL) to Oklahoma City (OKC) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.2% were cancelled, and 4% arrived an hour or more late.
- Departures scheduled around 10am did best (95% on time); around 9pm did worst (67%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (67%).
Which airline is most on time from STL to OKC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 100% | 0.0% | 0 min | 0.0% | 1 |
| Southwest Airlines | 82% | 1.2% | 9 min | 3.7% | 411 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am83%82 flights
- 10am95%110 flights
- 1pm86%22 flights
- 7pm81%28 flights
- 8pm78%60 flights
- 9pm67%33 flights
- 10pm71%71 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.0% cancelled
- Tuesday89%0.0% cancelled
- Wednesday90%0.0% cancelled
- Thursday82%0.0% cancelled
- Friday79%1.6% cancelled
- Saturday82%5.0% cancelled
- Sunday77%3.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft67%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion5%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
STL to OKC: common questions
- How often are STL to OKC flights on time?
- 82% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Louis to Oklahoma City cancelled?
- 1.2% of scheduled flights were cancelled (5 of 412).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 43 min behind schedule on average, and 3.7% of flights were an hour or more late.
- How long is taxi time at STL?
- Flights on this route spent 11 min taxiing from the gate to takeoff on average.
Related routes
Return trip: OKC to STL — 90% on time
More flights from St. Louis
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STL → OKC, nonstop flights by US airlines that report to the DOT. How we calculate this.