Best Time to Fly SEA to MSP: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Minneapolis-St Paul International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 86.4% of Seattle (SEA) to Minneapolis (MSP) flights arrived on time (2,684 scheduled flights). That is 8.7 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 88.4% on time and Alaska Airlines was last with 82.6%.
Over 24 months, Wednesday was the most reliable day (89% on time) and August the worst month (76%).
The cancellation rate was 0.8% (US average 1.8%).
SEA 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 | 88.4% | 69 min | 0.8% | 1,742 |
| Alaska Airlines | 82.6% | 42 min | 0.8% | 942 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to MSP
On-time arrival % by scheduled departure hour (local time), 5,361 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | 92.4% | 0.0% | 157 |
| 6am–7am | 95.3% | 0.7% | 730 |
| 7am–8am | 78.5% | 1.1% | 94 |
| 8am–9am | 89.0% | 0.7% | 973 |
| 9am–10am | 91.3% | 0.0% | 357 |
| 10am–11am | 72.4% | 0.5% | 202 |
| 11am–12pm | 82.8% | 0.3% | 283 |
| 12pm–1pm | 88.0% | 0.2% | 426 |
| 1pm–2pm | 75.0% | 0.0% | 436 |
| 2pm–3pm | 79.7% | 0.0% | 74 |
| 3pm–4pm | 90.5% | 1.1% | 277 |
| 4pm–5pm | 84.4% | 0.0% | 32 |
| 5pm–6pm | 85.9% | 0.0% | 128 |
| 6pm–7pm | 78.0% | 0.8% | 745 |
| 7pm–8pm | 80.2% | 0.0% | 111 |
| 11pm–12am | 89.8% | 0.6% | 336 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA 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) | 83.3% | -4.9 pts | 0.0% | 90 |
| Christmas & New Year (Dec 20 - Jan 3) | 88.0% | -0.2 pts | 0.0% | 210 |
| Summer peak (Jun 15 - Aug 15) | 78.2% | -10.1 pts | 0.3% | 1,161 |
| All other days | 88.2% | — | 0.6% | 3,900 |
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).