UA1831 · ATL → IAD

United Airlines · Atlanta to Washington Dulles · last 12 months · 361 flights tracked

76.2%on-time

UA1831 ATL→IAD: 76.2% on-time over 361 flights (last 12 months) — solid. It trails the route average (76.4%) by 0.2 points. Best day to fly: Tue (84.3%); worst: Sun (66.7%). Seasonality matters: Feb is the most reliable month (92.9%), Jul the worst (51.7%). Average arrival delay: 24.2 minutes.

Data: US BTS, last 12 months.

24.2 minavg arrival delay

0.8%cancelled

1diverted

361flights tracked

Arrival delay distribution

Early/on time · 2131–60 min · 10161–180 min · 32180+ min · 11

On-time by day of week

Mon

81.1%

Tue

84.3%

Wed

75.0%

Thu

78.4%

Fri

70.0%

Sat

77.6%

Sun

66.7%

On-time by month

70.0%

Sep

80.6%

Oct

70.0%

Nov

69.0%

Dec

75.9%

Jan

92.9%

Feb

71.0%

Mar

83.3%

Apr

90.3%

May

80.0%

Jun

51.7%

Jul

76.7%

Aug

← All flights on ATL–IAD