Route Reliability
Seattle → Ketchikan
SEA–KTN · 680 miles · Seattle–Tacoma International Airport to Ketchikan International Airport
- 76%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.2%
- Cancelled
- 1,301
- Flights in the data
Data through May 2026.
Alaska Airlines is the only airline in this data on this route, arriving on time 76% of the time across 1,301 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SEA–KTN flights departing between 6–9 AM arrived on time 84% of the time, versus 65% between 12–3 PM.
Friday is doing you no favors.
SEA–KTN flights arrived on time 81% of the time on Saturdays. On Fridays: 72%.
It basically never cancels.
Out of 1,301 scheduled flights, only 0.2% were cancelled.
Ticking up lately.
SEA–KTN flights arrived on time 81% of the time over the last three months in the data, compared with 75% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon75%(181 flights)
- Tue75%(183 flights)
- Wed79%(186 flights)
- Thu76%(177 flights)
- Fri72%(181 flights)
- Sat81%(183 flights)
- Sun76%(185 flights)
- 6–9 AM84%(355 flights)
- 9 AM–12 PM67%(144 flights)
- 12–3 PM65%(69 flights)
- 3–6 PM70%(351 flights)
- 6–9 PM82%(357 flights)
Jun 67% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 139 |
| July 2025 | 66% | 154 |
| August 2025 | 75% | 142 |
| September 2025 | 85% | 118 |
| October 2025 | 81% | 94 |
| November 2025 | 83% | 86 |
| December 2025 | 59% | 87 |
| January 2026 | 80% | 81 |
| February 2026 | 87% | 82 |
| March 2026 | 74% | 92 |
| April 2026 | 83% | 90 |
| May 2026 | 87% | 111 |
Keep nerding
Based on 1,301 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.