Best Time to Fly SEA to TUS: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Tucson International
Data through July 2026 · Last updated October 18, 2026
1,065 flights were scheduled from Seattle (SEA) to Tucson (TUS) in the last 12 months, and 82.7% of those that flew arrived on time, 5.1 points above the US average of 77.6%.
Among 3 airlines, SkyWest Airlines led with 87.1% on time and Alaska Airlines was last with 79.6%.
Over 24 months, Wednesday was the most reliable day (85% on time) and August the worst month (75%).
The cancellation rate was 0.5% (US average 1.8%).
SEA to TUS 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 |
|---|---|---|---|---|
| SkyWest Airlines | 87.1% | 56 min | 0.0% | 371 |
| Delta Air Lines | 83.8% | 73 min | 1.4% | 138 |
| Alaska Airlines | 79.6% | 39 min | 0.5% | 556 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to TUS
On-time arrival % by scheduled departure hour (local time), 2,118 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 23 | |
| 8am–9am | 93.3% | 0.0% | 345 |
| 9am–10am | 87.7% | 0.4% | 456 |
| 10am–11am | 83.9% | 0.0% | 193 |
| 11am–12pm | 71.4% | 0.5% | 408 |
| 12pm–1pm | Limited data | 1 | |
| 1pm–2pm | Limited data | 11 | |
| 2pm–3pm | Limited data | 6 | |
| 3pm–4pm | Limited data | 12 | |
| 5pm–6pm | 81.0% | 0.0% | 84 |
| 6pm–7pm | 59.9% | 0.0% | 172 |
| 7pm–8pm | 79.7% | 0.3% | 282 |
| 8pm–9pm | 79.0% | 0.8% | 125 |
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 TUS
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) | 85.0% | +3.8 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 72.2% | -9.0 pts | 0.0% | 90 |
| Summer peak (Jun 15 - Aug 15) | 81.2% | -0.1 pts | 0.0% | 372 |
| All other days | 81.2% | — | 0.4% | 1,616 |
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).