UA1870 · SFO → IAD

United Airlines · San Francisco to Washington Dulles · last 12 months · 241 flights tracked

87.4%on-time

UA1870 SFO→IAD: 87.4% on-time over 241 flights (last 12 months) — excellent. It beats the route average (83.0%) by 4.4 points. Best day to fly: Tue (100.0%); worst: Sat (79.4%). Seasonality matters: Jan is the most reliable month (100.0%), Sep the worst (60.0%). Average arrival delay: 5.5 minutes.

Data: US BTS, last 12 months.

5.5 minavg arrival delay

0.8%cancelled

0diverted

241flights tracked

Arrival delay distribution

Early/on time · 1781–60 min · 5861–180 min · 3180+ min · 0

On-time by day of week

Mon

93.9%

Tue

100.0%

Wed

80.6%

Thu

90.9%

Fri

85.3%

Sat

79.4%

Sun

81.8%

On-time by month

60.0%

Sep

87.1%

Oct

86.2%

Nov

100.0%

Dec

100.0%

Jan

96.4%

Feb

90.0%

Mar

83.3%

Apr

95.0%

May

← All flights on SFO–IAD