Best Time to Fly STL to MSP: On-Time Stats by Hour & Airline
St Louis Lambert International → Minneapolis-St Paul International
Data through July 2026 · Last updated October 18, 2026
1,936 flights were scheduled from St. Louis (STL) to Minneapolis (MSP) in the last 12 months, and 80.4% of those that flew arrived on time, 2.8 points above the US average of 77.6%.
Among 3 airlines, Delta Air Lines led with 85.9% on time and SkyWest Airlines was last with 75.0%.
Over 24 months, Tuesday was the most reliable day (86% on time) and June the worst month (73%).
The cancellation rate was 0.9% (US average 1.8%).
STL to MSP 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 | 85.9% | 87 min | 1.0% | 894 |
| Southwest Airlines | 76.1% | 53 min | 0.5% | 652 |
| SkyWest Airlines | 75.0% | 102 min | 1.5% | 390 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly STL to MSP
On-time arrival % by scheduled departure hour (local time), 3,830 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 90.5% | 0.8% | 730 |
| 7am–8am | Limited data | 10 | |
| 8am–9am | 89.8% | 0.0% | 157 |
| 9am–10am | 93.8% | 1.4% | 147 |
| 10am–11am | 87.7% | 0.7% | 435 |
| 11am–12pm | 84.6% | 0.8% | 387 |
| 12pm–1pm | 75.8% | 1.6% | 126 |
| 1pm–2pm | Limited data | 29 | |
| 2pm–3pm | 77.4% | 0.0% | 31 |
| 3pm–4pm | 76.4% | 1.8% | 514 |
| 4pm–5pm | 80.7% | 0.0% | 62 |
| 5pm–6pm | 81.1% | 0.6% | 476 |
| 6pm–7pm | 76.0% | 0.0% | 79 |
| 7pm–8pm | 73.1% | 1.1% | 94 |
| 8pm–9pm | 76.8% | 0.7% | 273 |
| 9pm–10pm | 56.2% | 1.1% | 178 |
| 10pm–11pm | 52.9% | 0.0% | 102 |
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 MSP
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) | 60.9% | -22.6 pts | 0.0% | 69 |
| Christmas & New Year (Dec 20 - Jan 3) | 74.3% | -9.2 pts | 0.7% | 149 |
| Summer peak (Jun 15 - Aug 15) | 76.5% | -7.0 pts | 0.8% | 660 |
| All other days | 83.5% | — | 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).