DL1787 · IAD → DTW

Delta Air Lines · Washington Dulles to Detroit · last 12 months · 104 flights tracked

76.2%on-time

DL1787 IAD→DTW: 76.2% on-time over 104 flights (last 12 months) — solid. It trails the route average (78.4%) by 2.2 points. Best day to fly: Wed (86.7%); worst: Fri (64.7%). Seasonality matters: May is the most reliable month (87.5%), Jun the worst (65.4%). Cancellation rate is 2.9% — have a backup plan. Average arrival delay: 22.8 minutes.

Data: US BTS, last 12 months.

22.8 minavg arrival delay

2.9%cancelled

0diverted

104flights tracked

Arrival delay distribution

Early/on time · 671–60 min · 1861–180 min · 13180+ min · 3

On-time by day of week

Mon

70.6%

Tue

73.3%

Wed

86.7%

Thu

70.6%

Fri

64.7%

Sat

100.0%

Sun

86.7%

On-time by month

87.5%

May

65.4%

Jun

72.0%

Jul

80.8%

Aug

← All flights on IAD–DTW