UA1738 · IAD → ORD

United Airlines · Washington Dulles to Chicago O'Hare · last 12 months · 339 flights tracked

78.2%on-time

UA1738 IAD→ORD: 78.2% on-time over 339 flights (last 12 months) — solid. It beats the route average (74.7%) by 3.5 points. Best day to fly: Tue (85.1%); worst: Sat (70.5%). Seasonality matters: Sep is the most reliable month (96.3%), Aug the worst (40.0%). Cancellation rate is 2.1% — have a backup plan. Average arrival delay: 20.3 minutes.

Data: US BTS, last 12 months.

20.3 minavg arrival delay

2.1%cancelled

2diverted

339flights tracked

Arrival delay distribution

Early/on time · 2011–60 min · 9761–180 min · 28180+ min · 4

On-time by day of week

Mon

75.5%

Tue

85.1%

Wed

77.6%

Thu

82.6%

Fri

73.5%

Sat

70.5%

Sun

82.6%

On-time by month

96.3%

Sep

83.9%

Oct

78.6%

Nov

77.4%

Dec

83.3%

Jan

89.3%

Feb

72.4%

Mar

70.0%

Apr

77.4%

May

79.3%

Jun

60.7%

Jul

40.0%

Aug

← All flights on IAD–ORD