UA641 · IAD → BOS

United Airlines · Washington Dulles to Boston · last 12 months · 344 flights tracked

92.3%on-time

UA641 IAD→BOS: 92.3% on-time over 344 flights (last 12 months) — excellent. It beats the route average (76.9%) by 15.4 points. Best day to fly: Fri (96.2%); worst: Mon (88.0%). Seasonality matters: Feb is the most reliable month (100.0%), Jan the worst (81.2%). Cancellation rate is 1.5% — have a backup plan. Average arrival delay: 4.7 minutes.

Data: US BTS, last 12 months.

4.7 minavg arrival delay

1.5%cancelled

0diverted

344flights tracked

Arrival delay distribution

Early/on time · 2761–60 min · 5261–180 min · 11180+ min · 0

On-time by day of week

Mon

88.0%

Tue

92.9%

Wed

93.5%

Thu

94.2%

Fri

96.2%

Sat

89.4%

Sun

92.0%

On-time by month

93.3%

Sep

90.3%

Oct

96.7%

Nov

87.1%

Dec

81.2%

Jan

100.0%

Feb

96.4%

Mar

86.7%

Apr

93.5%

May

96.6%

Jun

87.1%

Jul

96.8%

Aug

← All flights on IAD–BOS