DL1391 · DTW → PHL

Delta Air Lines · Detroit to Philadelphia · last 12 months · 239 flights tracked

67.9%on-time

DL1391 DTW→PHL: 67.9% on-time over 239 flights (last 12 months) — average. It trails the route average (78.4%) by 10.5 points. Best day to fly: Tue (75.8%); worst: Mon (52.9%). Seasonality matters: Feb is the most reliable month (80.8%), Jul the worst (46.7%). Cancellation rate is 2.1% — have a backup plan. Average arrival delay: 31.4 minutes.

Data: US BTS, last 12 months.

31.4 minavg arrival delay

2.1%cancelled

0diverted

239flights tracked

Arrival delay distribution

Early/on time · 1211–60 min · 7761–180 min · 25180+ min · 11

On-time by day of week

Mon

52.9%

Tue

75.8%

Wed

73.5%

Thu

70.6%

Fri

67.6%

Sat

69.7%

Sun

65.6%

On-time by month

76.9%

Jan

80.8%

Feb

80.0%

Mar

76.7%

Apr

71.0%

May

60.0%

Jun

46.7%

Jul

54.8%

Aug

← All flights on DTW–PHL