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Route Reliability

SBP → Seattle

SBP–SEA · 847 miles · SBP Airport to Seattle–Tacoma International Airport

83
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
4 min
Average arrival delay
1.0%
Cancelled
403
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 79% of the time across 403 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

SBP–SEA flights departing between 12–3 PM arrived on time 96% of the time, versus 77% between 3–6 PM.

Thursday has been the better bet.

A small edge: 83% on time on Thursdays against 76% on Saturdays.

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
  • Mon82%(55 flights)
  • Tue79%(56 flights)
  • Wed79%(57 flights)
  • Thu83%(57 flights)
  • Fri79%(56 flights)
  • Sat76%(58 flights)
  • Sun80%(59 flights)
On-time by departure window
  • 6–9 AM81%(21 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM96%(27 flights)
  • 3–6 PM77%(39 flights)
  • 6–9 PM78%(310 flights)
On-time trend by month
79%
May

Jun 47% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202547%30
July 202571%31
August 202565%31
September 202593%27
October 202583%30
November 202587%30
December 202570%30
January 202690%31
February 202696%28
March 202679%29
April 202692%39
May 202679%62

Keep nerding

Based on 403 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.