UA2640 · SEA → SFO

United Airlines · Seattle to San Francisco · last 12 months · 108 flights tracked

80.6%on-time

UA2640 SEA→SFO: 80.6% on-time over 108 flights (last 12 months) — solid. It beats the route average (59.8%) by 20.8 points. Best day to fly: Tue (93.8%); worst: Sun (66.7%). Seasonality matters: Dec is the most reliable month (88.2%), Oct the worst (71.0%). Average arrival delay: 14.9 minutes.

Data: US BTS, last 12 months.

14.9 minavg arrival delay

0.0%cancelled

0diverted

108flights tracked

Arrival delay distribution

Early/on time · 741–60 min · 2861–180 min · 4180+ min · 2

On-time by day of week

Mon

87.5%

Tue

93.8%

Wed

75.0%

Thu

66.7%

Fri

93.3%

Sat

80.0%

Sun

66.7%

On-time by month

86.7%

Sep

71.0%

Oct

80.0%

Nov

88.2%

Dec

← All flights on SEA–SFO