Alaska Airlines' Seattle nonstop load averages 83% while Vail route dips below 30%

Alaska Airlines operates 303 daily nonstop departures from Seattle‑Tacoma International Airport, representing 52.6% of the airport's total scheduled passenger activity, and its average load factor from Seattle for the 12 months to June 2026 was 83.2% versus an 82.4% system‑wide average.

The carrier launched service to Vail on 20 December 2024 using Horizon Air’s 76‑seat Embraer E175s, served the market again in December 2025 and from January to March 2026, achieving a highest load factor of 48.0% in December 2025 and a lowest of 26.9% in January 2026 on the Seattle‑Vail route.