UA2179 · ORD → SFO

United Airlines · Chicago O'Hare to San Francisco · last 12 months · 318 flights tracked

45.9%on-time

UA2179 ORD→SFO: 45.9% on-time over 318 flights (last 12 months) — below average. It trails the route average (66.2%) by 20.3 points. Best day to fly: Tue (67.4%); worst: Thu (29.5%). Seasonality matters: Aug is the most reliable month (60.0%), Jun the worst (26.7%). Average arrival delay: 35.2 minutes.

Data: US BTS, last 12 months.

35.2 minavg arrival delay

1.3%cancelled

0diverted

318flights tracked

Arrival delay distribution

Early/on time · 831–60 min · 16861–180 min · 57180+ min · 6

On-time by day of week

Mon

43.5%

Tue

67.4%

Wed

33.3%

Thu

29.5%

Fri

45.5%

Sat

53.5%

Sun

47.8%

On-time by month

60.0%

Sep

83.3%

Oct

35.7%

Nov

35.5%

Dec

60.0%

Jan

46.4%

Feb

58.1%

Mar

48.3%

Apr

35.5%

May

26.7%

Jun

40.0%

Jul

60.0%

Aug

← All flights on ORD–SFO