AS1378: Santa Ana to Seattle
Alaska Airlines flight AS1378 flies from Santa Ana (SNA) to Seattle Tacoma (SEA), 1,576 km. Over October 2025 to June 2026 it usually arrives about 8 minutes early: 92% of 226 flights arrived within 15 minutes of schedule and 0.4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of AS1378, October 2025 to June 2026: 226 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AS1378
- Santa Ana (SNA) to Seattle Tacoma (SEA)226 flights
Other flights from Santa Ana to Seattle
More about Santa Ana (SNA) and Seattle Tacoma (SEA).
Questions and answers
- Is AS1378 usually on time?
- 92% of Alaska Airlines flight AS1378's 226 flights from October 2025 to June 2026 arrived within 15 minutes of schedule. It arrived about 8 minutes early on average.
- How often is AS1378 cancelled or badly delayed?
- 0.4% of AS1378's scheduled flights were cancelled from October 2025 to June 2026 (1 of 226), and 4% of the flights that operated arrived more than 30 minutes late.
- What route does AS1378 fly?
- AS1378 most often flies from Santa Ana (SNA) to Seattle Tacoma (SEA), 1,576 km (226 flights in the period).
- Where do these AS1378 figures come from?
- From the US Bureau of Transportation Statistics (BTS) on-time records, which cover every domestic flight by the larger US airlines. The figures cover October 2025 to June 2026 and are updated each month when new BTS data is published, about two months after the month ends. See how TripStow measures punctuality.
How does Alaska Airlines compare? Alaska Airlines' on-time record and the US airline league table.
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