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Route Reliability

Seattle → SBP

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

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
1 min
Average arrival delay
0.5%
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 83% of the time across 403 flights. No comparison to make.

What the data says

The late departure is the smart one here.

SEA–SBP flights departing between 6–9 PM arrived on time 95% of the time, versus 72% between 12–3 PM.

Skip Monday if you can.

SEA–SBP flights arrived on time 88% of the time on Wednesdays. On Mondays: 79%.

Ticking up lately.

SEA–SBP flights arrived on time 90% of the time over the last three months in the data, compared with 86% 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
  • Mon79%(56 flights)
  • Tue86%(56 flights)
  • Wed88%(57 flights)
  • Thu79%(57 flights)
  • Fri83%(57 flights)
  • Sat81%(58 flights)
  • Sun85%(59 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM85%(27 flights)
  • 12–3 PM72%(39 flights)
  • 3–6 PM83%(312 flights)
  • 6–9 PM95%(21 flights)
On-time trend by month
82%
May

Jun 60% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202571%31
August 202571%31
September 202593%27
October 202587%30
November 202583%30
December 202573%30
January 202684%31
February 2026100%28
March 202687%31
April 2026100%39
May 202682%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.