UA499 · SEA → SFO

United Airlines · Seattle to San Francisco · last 12 months · 93 flights tracked

52.2%on-time

UA499 SEA→SFO: 52.2% on-time over 93 flights (last 12 months) — below average. It trails the route average (59.8%) by 7.6 points. Best day to fly: Tue (71.4%); worst: Mon (35.7%). Seasonality matters: Mar is the most reliable month (88.5%), May the worst (21.1%). Average arrival delay: 24.1 minutes.

Data: US BTS, last 12 months.

24.1 minavg arrival delay

1.1%cancelled

0diverted

93flights tracked

Arrival delay distribution

Early/on time · 261–60 min · 5761–180 min · 8180+ min · 1

On-time by day of week

Mon

35.7%

Tue

71.4%

Wed

53.8%

Thu

42.9%

Fri

42.9%

Sat

63.6%

Sun

58.3%

On-time by month

88.5%

Mar

30.8%

Apr

21.1%

May

61.9%

Aug

← All flights on SEA–SFO