UA521 · IAH → BOS

United Airlines · Houston to Boston · last 12 months · 153 flights tracked

68.6%on-time

UA521 IAH→BOS: 68.6% on-time over 153 flights (last 12 months) — average. It trails the route average (71.5%) by 2.9 points. Best day to fly: Tue (76.5%); worst: Sun (60.0%). Seasonality matters: May is the most reliable month (80.8%), Jun the worst (55.6%). Average arrival delay: 23.1 minutes.

Data: US BTS, last 12 months.

23.1 minavg arrival delay

0.0%cancelled

0diverted

153flights tracked

Arrival delay distribution

Early/on time · 761–60 min · 5661–180 min · 20180+ min · 1

On-time by day of week

Mon

71.4%

Tue

76.5%

Wed

64.0%

Thu

69.2%

Fri

72.0%

Sat

71.4%

Sun

60.0%

On-time by month

62.5%

Mar

70.0%

Apr

80.8%

May

55.6%

Jun

61.5%

Jul

75.9%

Aug

← All flights on IAH–BOS