AS528 · SEA → SFO

Alaska Airlines · Seattle to San Francisco · last 12 months · 250 flights tracked

50.2%on-time

AS528 SEA→SFO: 50.2% on-time over 250 flights (last 12 months) — below average. It trails the route average (59.8%) by 9.6 points. Best day to fly: Fri (62.2%); worst: Sun (43.6%). Seasonality matters: Jan is the most reliable month (82.8%), Apr the worst (16.7%). Average arrival delay: 27.2 minutes.

Data: US BTS, last 12 months.

27.2 minavg arrival delay

1.2%cancelled

0diverted

250flights tracked

Arrival delay distribution

Early/on time · 791–60 min · 13561–180 min · 32180+ min · 1

On-time by day of week

Mon

50.0%

Tue

47.1%

Wed

52.8%

Thu

44.4%

Fri

62.2%

Sat

51.9%

Sun

43.6%

On-time by month

66.7%

Oct

60.9%

Nov

65.4%

Dec

82.8%

Jan

68.2%

Feb

75.0%

Mar

16.7%

Apr

28.6%

May

35.7%

Jun

35.5%

Jul

33.3%

Aug

← All flights on SEA–SFO