SkyWest Airlines is the most reliable airline on the SMF to SEA route with a 89% on-time rate, compared to Southwest Airlines at 81%. Based on 5,838 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SMF to SEA
Sacramento to Seattle — airline reliability comparison
On-Time Rate by Airline
SkyWest Airlines89%
Delta Air Lines85%
Alaska Airlines82%
Southwest Airlines81%
SMF to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| SkyWest AirlinesOOBest | 89% | 0.1% | 63m | 5,838 |
| Delta Air LinesDL | 85% | 0.8% | 55m | 452 |
| Alaska AirlinesAS | 82% | 1.0% | 45m | 4,279 |
| Southwest AirlinesWNWorst | 81% | 0.1% | 46m | 4,405 |
Route Overview
84%
Overall On-Time
52m
Avg Delay
0.3%
Cancel Rate
14,989
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.