Best Time to Fly KTN to SEA: On-Time Stats by Hour & Airline
Ketchikan International → Seattle/Tacoma International
Data through July 2026 · Last updated October 18, 2026
1,304 flights were scheduled from Ketchikan (KTN) to Seattle (SEA) in the last 12 months, and 84.0% of those that flew arrived on time, 6.4 points above the US average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
April has been the best month (93% on time) and Saturday the weakest day of the week (81%).
2.6% of flights were cancelled, versus 1.8% nationally.
KTN to SEA 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 |
|---|---|---|---|---|
| Alaska Airlines | 84.0% | 69 min | 2.6% | 1,304 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly KTN to SEA
On-time arrival % by scheduled departure hour (local time), 2,642 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 84.8% | 1.6% | 194 |
| 9am–10am | 85.7% | 2.6% | 530 |
| 11am–12pm | 66.7% | 0.6% | 163 |
| 12pm–1pm | 87.5% | 1.1% | 365 |
| 1pm–2pm | 84.2% | 2.9% | 488 |
| 2pm–3pm | Limited data | 24 | |
| 4pm–5pm | 73.9% | 0.7% | 154 |
| 5pm–6pm | 87.5% | 3.0% | 724 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on KTN to SEA
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) | 78.4% | -7.7 pts | 2.6% | 38 |
| Christmas & New Year (Dec 20 - Jan 3) | 85.9% | -0.2 pts | 4.9% | 82 |
| Summer peak (Jun 15 - Aug 15) | 79.1% | -7.0 pts | 0.6% | 635 |
| All other days | 86.1% | — | 2.6% | 1,887 |
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).