Alaska Airlines
AS256Boston to San Diego
Alaska Airlines flight AS256 flies from Boston (BOS) to San Diego (SAN), 4,156 km. Over August 2025 to July 2026 it usually arrives about 9 minutes late: 78% of 173 flights arrived within 15 minutes of schedule and 4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
78%
on time (within 15 min)
13%
more than 30 min late
4%
cancelled
+9 min
average arrival vs schedule
Every operation of AS256, August 2025 to July 2026: 173 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AS256
- Boston (BOS) to San Diego (SAN)52 flights
- Kona (KOA) to Anchorage (ANC)49 flights
- Seattle Tacoma (SEA) to Lihue (LIH)32 flights
- Anchorage (ANC) to Phoenix Sky Harbor (PHX)21 flights
- Seattle Tacoma (SEA) to Burbank (BUR)18 flights
- Anchorage (ANC) to Seattle Tacoma (SEA)1 flights
Other flights from Boston to San Diego
More about Boston (BOS) and San Diego (SAN).
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