UA635 · IAD → SFO

United Airlines · Washington Dulles to San Francisco · last 12 months · 73 flights tracked

82.2%on-time

UA635 IAD→SFO: 82.2% on-time over 73 flights (last 12 months) — solid. It beats the route average (77.5%) by 4.7 points. Best day to fly: Sat (100.0%); worst: Thu (54.5%). Seasonality matters: Apr is the most reliable month (88.9%), Jun the worst (75.0%). Average arrival delay: 11.2 minutes.

Data: US BTS, last 12 months.

11.2 minavg arrival delay

0.0%cancelled

0diverted

73flights tracked

Arrival delay distribution

Early/on time · 511–60 min · 1961–180 min · 2180+ min · 1

On-time by day of week

Mon

75.0%

Tue

87.5%

Wed

87.5%

Thu

54.5%

Fri

81.8%

Sat

100.0%

Sun

90.9%

On-time by month

88.9%

Apr

83.9%

May

75.0%

Jun

← All flights on IAD–SFO