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Route Reliability

PUW → Seattle

PUW–SEA · 250 miles · PUW Airport to Seattle–Tacoma International Airport

85
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
4 min
Average arrival delay
1.7%
Cancelled
1,049
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 83% of the time across 1,049 flights. No comparison to make.

What the data says

Morning flights do better here.

PUW–SEA flights departing between 6–9 AM arrived on time 97% of the time, versus 75% between 12–3 PM.

Thursday is the weak spot.

PUW–SEA flights arrived on time 90% of the time on Mondays. On Thursdays: 76%.

Ticking up lately.

PUW–SEA flights arrived on time 86% of the time over the last three months in the data, compared with 81% 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
  • Mon90%(155 flights)
  • Tue84%(141 flights)
  • Wed82%(148 flights)
  • Thu76%(149 flights)
  • Fri82%(149 flights)
  • Sat89%(132 flights)
  • Sun82%(157 flights)
On-time by departure window
  • 3–6 AM93%(215 flights)
  • 6–9 AM97%(142 flights)
  • 12–3 PM75%(287 flights)
  • 3–6 PM79%(75 flights)
  • 6–9 PM80%(312 flights)
On-time trend by month
80%
May

Jun 73% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%88
July 202580%90
August 202577%91
September 202587%85
October 202593%85
November 202593%81
December 202571%89
January 202685%81
February 202687%75
March 202690%90
April 202689%87
May 202680%89

Keep nerding

Based on 1,049 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.