UA1577 · ORD → SFO

United Airlines · Chicago O'Hare to San Francisco · last 12 months · 357 flights tracked

72.5%on-time

UA1577 ORD→SFO: 72.5% on-time over 357 flights (last 12 months) — average. It beats the route average (66.2%) by 6.3 points. Best day to fly: Tue (82.7%); worst: Fri (61.5%). Seasonality matters: Mar is the most reliable month (87.1%), Jun the worst (58.6%). Average arrival delay: 29.7 minutes.

Data: US BTS, last 12 months.

29.7 minavg arrival delay

0.0%cancelled

0diverted

357flights tracked

Arrival delay distribution

Early/on time · 2011–60 min · 10761–180 min · 36180+ min · 13

On-time by day of week

Mon

75.5%

Tue

82.7%

Wed

67.3%

Thu

74.5%

Fri

61.5%

Sat

77.8%

Sun

69.2%

On-time by month

70.0%

Sep

80.6%

Oct

69.0%

Nov

71.0%

Dec

77.4%

Jan

85.7%

Feb

87.1%

Mar

63.3%

Apr

71.0%

May

58.6%

Jun

74.1%

Jul

62.1%

Aug

← All flights on ORD–SFO