Best Time to Fly STL to TUL: On-Time Stats by Hour & Airline
St Louis Lambert International → Tulsa International
Data through July 2026 · Last updated October 18, 2026
403 flights were scheduled from St. Louis (STL) to Tulsa (TUL) in the last 12 months, and 82.2% of those that flew arrived on time, 4.6 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (89% on time) and June the worst month (73%).
The cancellation rate was 1.0% (US average 1.8%).
STL to TUL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 82.2% | 56 min | 1.0% | 403 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly STL to TUL
On-time arrival % by scheduled departure hour (local time), 1,083 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 93.1% | 1.8% | 163 |
| 10am–11am | 94.7% | 0.0% | 305 |
| 11am–12pm | 93.1% | 4.9% | 61 |
| 12pm–1pm | Limited data | 2 | |
| 1pm–2pm | Limited data | 29 | |
| 2pm–3pm | Limited data | 19 | |
| 5pm–6pm | Limited data | 1 | |
| 7pm–8pm | Limited data | 28 | |
| 8pm–9pm | 83.1% | 0.8% | 132 |
| 9pm–10pm | 76.4% | 0.7% | 142 |
| 10pm–11pm | 67.3% | 1.0% | 201 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on STL to TUL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 78.3% | -8.8 pts | 0.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 72.0% | -15.1 pts | 0.0% | 144 |
| All other days | 87.1% | — | 1.4% | 853 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).