UA2251 · ORD → SFO

United Airlines · Chicago O'Hare to San Francisco · last 12 months · 131 flights tracked

66.4%on-time

UA2251 ORD→SFO: 66.4% on-time over 131 flights (last 12 months) — average. It beats the route average (66.2%) by 0.2 points. Best day to fly: Tue (89.5%); worst: Thu (47.4%). Seasonality matters: Jul is the most reliable month (77.4%), Aug the worst (61.3%). Average arrival delay: 27.5 minutes.

Data: US BTS, last 12 months.

27.5 minavg arrival delay

0.0%cancelled

0diverted

131flights tracked

Arrival delay distribution

Early/on time · 601–60 min · 5361–180 min · 15180+ min · 3

On-time by day of week

Mon

60.0%

Tue

89.5%

Wed

57.9%

Thu

47.4%

Fri

57.9%

Sat

80.0%

Sun

75.0%

On-time by month

66.7%

Mar

64.0%

Apr

63.6%

May

63.3%

Jun

77.4%

Jul

61.3%

Aug

← All flights on ORD–SFO