UA1434 · IAD → SFO

United Airlines · Washington Dulles to San Francisco · last 12 months · 328 flights tracked

77.4%on-time

UA1434 IAD→SFO: 77.4% on-time over 328 flights (last 12 months) — solid. It trails the route average (77.5%) by 0.1 points. Best day to fly: Thu (80.9%); worst: Sun (70.2%). Seasonality matters: Sep is the most reliable month (96.7%), Dec the worst (54.8%). Average arrival delay: 16.8 minutes.

Data: US BTS, last 12 months.

16.8 minavg arrival delay

0.3%cancelled

0diverted

328flights tracked

Arrival delay distribution

Early/on time · 1881–60 min · 11361–180 min · 19180+ min · 7

On-time by day of week

Mon

72.9%

Tue

80.4%

Wed

80.4%

Thu

80.9%

Fri

80.4%

Sat

76.6%

Sun

70.2%

On-time by month

96.7%

Sep

93.5%

Oct

82.8%

Nov

54.8%

Dec

40.0%

Jan

70.6%

Feb

80.6%

Mar

70.0%

Apr

87.1%

May

63.3%

Jun

74.2%

Jul

80.6%

Aug

← All flights on IAD–SFO