UA2123 · DEN → SFO

United Airlines · Denver to San Francisco · last 12 months · 306 flights tracked

56.6%on-time

UA2123 DEN→SFO: 56.6% on-time over 306 flights (last 12 months) — below average. It trails the route average (63.2%) by 6.6 points. Best day to fly: Tue (82.5%); worst: Sun (40.0%). Seasonality matters: Mar is the most reliable month (87.1%), Jul the worst (25.8%). Average arrival delay: 28.7 minutes.

Data: US BTS, last 12 months.

28.7 minavg arrival delay

0.3%cancelled

1diverted

306flights tracked

Arrival delay distribution

Early/on time · 1161–60 min · 13761–180 min · 47180+ min · 4

On-time by day of week

Mon

44.4%

Tue

82.5%

Wed

56.8%

Thu

51.2%

Fri

48.8%

Sat

75.0%

Sun

40.0%

On-time by month

33.3%

Oct

58.6%

Nov

64.5%

Dec

73.3%

Jan

80.8%

Feb

87.1%

Mar

56.7%

Apr

41.9%

May

36.7%

Jun

25.8%

Jul

46.7%

Aug

← All flights on DEN–SFO