STL to TUL flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Tulsa International Airport · 351 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or TUL 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 Tulsa (TUL) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 5% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (97% on time); around 10pm did worst (56%).
- Tuesday was the most reliable day to fly (90% on time) and Sunday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (74%).
Which airline is most on time from STL to TUL?
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 82% | 1.0% | 11 min | 5.3% | 403 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am93%83 flights
- 10am97%105 flights
- 1pm71%22 flights
- 7pm81%28 flights
- 8pm77%53 flights
- 9pm79%38 flights
- 10pm56%71 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday85%1.6% cancelled
- Tuesday90%0.0% cancelled
- Wednesday87%0.0% cancelled
- Thursday85%0.0% cancelled
- Friday80%1.6% cancelled
- Saturday74%2.8% cancelled
- Sunday70%1.6% 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 aircraft74%
- Airline (crew, maintenance, cleaning, fueling)19%
- 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 TUL: common questions
- How often are STL to TUL 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 Tulsa cancelled?
- 1.0% of scheduled flights were cancelled (4 of 403).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 5.3% 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: TUL to STL — 92% 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 → TUL, nonstop flights by US airlines that report to the DOT. How we calculate this.