Route
SEA → SBP
Seattle–Tacoma International Airport San Luis County Regional Airport
847 miles
Return route SBP → SEA →
How punctual is this route?
- On-time arrivals
- 83.9%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 189
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 44%
- Late-arriving aircraft 36%
- Air traffic control & airport 18%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Jun 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 92.6% | 28 |
| October 2025 | 86.7% | 31 |
| November 2025 | 83.3% | 30 |
| December 2025 | 70.0% | 31 |
| January 2026 | 50.0% | 6 |
| March 2026 | 78.6% | 14 |
| April 2026 | 100.0% | 21 |
| May 2026 | 78.9% | 19 |
| June 2026 | 100.0% | 9 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Alaska Airlines | 161 | 83.5% | 1.2% | 53 min |
| SkyWest Airlines | 28 | 85.7% | 0.0% | 41 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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