Best Time to Fly MSP to STL: On-Time Stats by Hour & Airline
Minneapolis-St Paul International → St Louis Lambert International
Data through July 2026 · Last updated October 18, 2026
1,936 flights were scheduled from Minneapolis (MSP) to St. Louis (STL) in the last 12 months, and 80.3% of those that flew arrived on time, 2.7 points above the US average of 77.6%.
Delta Air Lines was the most punctual of the 3 airlines on the route at 81.4%, while SkyWest Airlines trailed at 77.3%.
September has been the best month (88% on time) and Monday the weakest day of the week (77%).
0.9% of flights were cancelled, versus 1.8% nationally.
MSP to STL 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 |
|---|---|---|---|---|
| Delta Air Lines | 81.4% | 64 min | 1.1% | 894 |
| Southwest Airlines | 80.5% | 52 min | 0.3% | 652 |
| SkyWest Airlines | 77.3% | 86 min | 1.3% | 390 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSP to STL
On-time arrival % by scheduled departure hour (local time), 3,828 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.8% | 0.0% | 273 |
| 6am–7am | 97.2% | 1.4% | 217 |
| 7am–8am | 91.0% | 1.7% | 180 |
| 8am–9am | 89.4% | 0.7% | 305 |
| 9am–10am | 87.8% | 0.7% | 288 |
| 10am–11am | 80.5% | 1.6% | 125 |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | 83.5% | 2.5% | 199 |
| 1pm–2pm | 77.2% | 0.3% | 366 |
| 2pm–3pm | 65.5% | 0.0% | 58 |
| 3pm–4pm | 81.4% | 0.6% | 622 |
| 4pm–5pm | 69.0% | 0.5% | 191 |
| 5pm–6pm | 59.4% | 0.0% | 155 |
| 6pm–7pm | 71.0% | 2.6% | 78 |
| 7pm–8pm | 60.6% | 0.0% | 33 |
| 8pm–9pm | 80.3% | 0.0% | 178 |
| 9pm–10pm | 75.2% | 1.3% | 557 |
| 10pm–11pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MSP to STL
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) | 63.8% | -20.2 pts | 0.0% | 69 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.5% | -13.4 pts | 0.7% | 147 |
| Summer peak (Jun 15 - Aug 15) | 75.3% | -8.7 pts | 0.6% | 660 |
| All other days | 84.0% | — | 0.9% | 2,952 |
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).