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Route Reliability

Ketchikan → Seattle

KTN–SEA · 680 miles · Ketchikan International Airport to Seattle–Tacoma International Airport

79
Usually Fine
WanderNerd Reliability Score
82%
Arrive within 15 minutes
2 min
Average arrival delay
2.8%
Cancelled
1,302
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 82% of the time across 1,302 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

KTN–SEA flights departing between 12–3 PM arrived on time 86% of the time, versus 79% between 9 AM–12 PM.

Skip Monday if you can.

KTN–SEA flights arrived on time 86% of the time on Thursdays. On Mondays: 78%.

Trending in the right direction.

KTN–SEA flights arrived on time 87% of the time over the last three months in the data, compared with 79% 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

On-time by weekday
  • Mon78%(183 flights)
  • Tue85%(178 flights)
  • Wed83%(186 flights)
  • Thu86%(177 flights)
  • Fri83%(183 flights)
  • Sat79%(180 flights)
  • Sun82%(179 flights)
On-time by departure window
  • 6–9 AM81%(58 flights)
  • 9 AM–12 PM79%(408 flights)
  • 12–3 PM86%(384 flights)
  • 3–6 PM82%(416 flights)
On-time trend by month
96%
May

Jun 80% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%138
July 202575%153
August 202572%142
September 202585%118
October 202594%95
November 202590%83
December 202573%86
January 202679%79
February 202685%79
March 202674%91
April 202691%90
May 202696%112

Keep nerding

Based on 1,302 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.