Alaska Airlines is the most reliable airline on the OAK to SEA route with a 86% on-time rate, compared to Southwest Airlines at 78%. Based on 2,479 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: OAK to SEA
Oakland to Seattle — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines86%
SkyWest Airlines81%
Southwest Airlines78%
OAK to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 86% | 1.6% | 53m | 2,479 |
| SkyWest AirlinesOO | 81% | 0.7% | 49m | 396 |
| Southwest AirlinesWNWorst | 78% | 0.1% | 48m | 4,888 |
Route Overview
80%
Overall On-Time
49m
Avg Delay
0.6%
Cancel Rate
7,782
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.