OKC to STL flight delays & on-time performance
Nonstop flights from OKC Will Rogers World Airport to St. Louis Lambert International Airport · 462 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at OKC or STL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Oklahoma City (OKC) to St. Louis (STL) arrived on time 90% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.2% were cancelled, and 3% arrived an hour or more late.
- Departures scheduled around 6am did best (100% on time); around 6pm did worst (68%).
- Tuesday was the most reliable day to fly (97% on time) and Sunday the least (82%).
- The largest source of delay minutes was late-arriving aircraft (55%).
Which airline is most on time from OKC to STL?
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 | 90% | 1.2% | 6 min | 3.0% | 410 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am96%141 flights
- 6am100%59 flights
- 8am93%15 flights
- 3pm88%27 flights
- 4pm96%69 flights
- 5pm73%73 flights
- 6pm68%22 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday90%0.0% cancelled
- Tuesday97%0.0% cancelled
- Wednesday97%0.0% cancelled
- Thursday87%0.0% cancelled
- Friday89%1.6% cancelled
- Saturday89%5.0% cancelled
- Sunday82%3.1% 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 aircraft55%
- Airline (crew, maintenance, cleaning, fueling)29%
- Extreme weather9%
- Air traffic control & airport congestion7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
OKC to STL: common questions
- How often are OKC to STL flights on time?
- 90% 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 Oklahoma City to St. Louis cancelled?
- 1.2% of scheduled flights were cancelled (5 of 411).
- How long are typical delays?
- Across all flights the average arrival delay was 6 min (early arrivals count as zero). Flights that were late arrived 50 min behind schedule on average, and 3.0% of flights were an hour or more late.
- How long is taxi time at OKC?
- Flights on this route spent 11 min taxiing from the gate to takeoff on average.
Related routes
Return trip: STL to OKC — 82% on time
More flights from Oklahoma City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: OKC → STL, nonstop flights by US airlines that report to the DOT. How we calculate this.