Best Time to Fly MSP to MSO: On-Time Stats by Hour & Airline
Minneapolis-St Paul International → Missoula Montana
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.8% of Minneapolis (MSP) to Missoula (MSO) flights arrived on time (489 scheduled flights). That is 1.2 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
September has been the best month (96% on time) and Sunday the weakest day of the week (75%).
0.4% of flights were cancelled, versus 1.8% nationally.
MSP to MSO 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 | 78.8% | 63 min | 0.4% | 489 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSP to MSO
On-time arrival % by scheduled departure hour (local time), 959 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 11am–12pm | 92.2% | 0.0% | 51 |
| 12pm–1pm | 86.8% | 0.0% | 182 |
| 1pm–2pm | Limited data | 1 | |
| 3pm–4pm | Limited data | 3 | |
| 6pm–7pm | 79.2% | 0.6% | 335 |
| 7pm–8pm | 73.8% | 0.0% | 65 |
| 8pm–9pm | Limited data | 19 | |
| 9pm–10pm | 73.6% | 0.0% | 210 |
| 10pm–11pm | 89.2% | 0.0% | 93 |
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 MSO
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 | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 75.7% | -7.4 pts | 0.0% | 248 |
| All other days | 83.1% | — | 0.3% | 667 |
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).