AS521 · SEA → SJC

Alaska Airlines · Seattle to SJC · last 12 months · 197 flights tracked

85.6%on-time

AS521 SEA→SJC: 85.6% on-time over 197 flights (last 12 months) — excellent. It beats the route average (80.1%) by 5.5 points. Best day to fly: Thu (93.8%); worst: Fri (76.9%). Seasonality matters: Nov is the most reliable month (94.1%), Aug the worst (69.2%). Average arrival delay: 8.8 minutes.

Data: US BTS, last 12 months.

8.8 minavg arrival delay

1.0%cancelled

0diverted

197flights tracked

Arrival delay distribution

Early/on time · 1291–60 min · 5861–180 min · 8180+ min · 0

On-time by day of week

Mon

90.0%

Tue

89.3%

Wed

84.4%

Thu

93.8%

Fri

76.9%

Sat

78.9%

Sun

82.1%

On-time by month

100.0%

Oct

94.1%

Nov

83.3%

Dec

80.0%

Jan

78.6%

Feb

85.7%

Mar

92.3%

Apr

87.1%

May

100.0%

Jun

69.2%

Aug

← All flights on SEA–SJC