UA1257 · MIA → SFO

United Airlines · Miami to San Francisco · last 12 months · 158 flights tracked

89.2%on-time

UA1257 MIA→SFO: 89.2% on-time over 158 flights (last 12 months) — excellent. It beats the route average (70.7%) by 18.5 points. Best day to fly: Wed (95.5%); worst: Fri (82.6%). Seasonality matters: Jul is the most reliable month (96.8%), Apr the worst (80.0%). Average arrival delay: 6.0 minutes.

Data: US BTS, last 12 months.

6.0 minavg arrival delay

0.6%cancelled

0diverted

158flights tracked

Arrival delay distribution

Early/on time · 1241–60 min · 2861–180 min · 4180+ min · 1

On-time by day of week

Mon

91.3%

Tue

85.7%

Wed

95.5%

Thu

91.3%

Fri

82.6%

Sat

87.0%

Sun

90.9%

On-time by month

96.3%

Mar

80.0%

Apr

80.0%

May

96.6%

Jun

96.8%

Jul

80.0%

Aug

← All flights on MIA–SFO