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Route Reliability

YKM → Seattle

YKM–SEA · 103 miles · YKM Airport to Seattle–Tacoma International Airport

89
Pretty Reliable
WanderNerd Reliability Score
88%
Arrive within 15 minutes
0 min
Average arrival delay
1.7%
Cancelled
727
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 88% of the time across 727 flights. No comparison to make.

What the data says

Morning-you made the right choice.

YKM–SEA flights departing between 3–6 AM arrived on time 96% of the time, versus 79% between 12–3 PM.

Skip Thursday if you can.

YKM–SEA flights arrived on time 92% of the time on Tuesdays. On Thursdays: 84%.

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
  • Mon86%(102 flights)
  • Tue92%(104 flights)
  • Wed92%(101 flights)
  • Thu84%(99 flights)
  • Fri87%(100 flights)
  • Sat85%(103 flights)
  • Sun90%(105 flights)
On-time by departure window
  • 3–6 AM96%(101 flights)
  • 6–9 AM93%(254 flights)
  • 12–3 PM79%(168 flights)
  • 3–6 PM87%(166 flights)
  • 6–9 PM80%(25 flights)
On-time trend by month
87%
May

Jun 77% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%60
July 202585%61
August 202590%62
September 202588%60
October 202583%59
November 202591%58
December 202590%60
January 202688%57
February 202693%54
March 202689%61
April 202695%60
May 202687%62

Keep nerding

Based on 727 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.