DL2639 · JFK → BOS

Delta Air Lines · New York JFK to Boston · last 12 months · 349 flights tracked

68.2%on-time

DL2639 JFK→BOS: 68.2% on-time over 349 flights (last 12 months) — average. It trails the route average (72.1%) by 3.9 points. Best day to fly: Wed (77.6%); worst: Mon (60.4%). Seasonality matters: Mar is the most reliable month (80.0%), Aug the worst (56.7%). Cancellation rate is 3.7% — have a backup plan. Average arrival delay: 28.5 minutes.

Data: US BTS, last 12 months.

28.5 minavg arrival delay

3.7%cancelled

0diverted

349flights tracked

Arrival delay distribution

Early/on time · 1871–60 min · 9461–180 min · 47180+ min · 8

On-time by day of week

Mon

60.4%

Tue

68.8%

Wed

77.6%

Thu

61.7%

Fri

72.0%

Sat

68.8%

Sun

67.4%

On-time by month

70.0%

Sep

63.3%

Oct

73.3%

Nov

57.9%

Dec

79.2%

Jan

69.2%

Feb

80.0%

Mar

66.7%

Apr

73.3%

May

69.0%

Jun

57.1%

Jul

56.7%

Aug

← All flights on JFK–BOS