DL321 · BOS → LAX

Delta Air Lines · Boston to Los Angeles · last 12 months · 284 flights tracked

65.8%on-time

DL321 BOS→LAX: 65.8% on-time over 284 flights (last 12 months) — average. It trails the route average (73.7%) by 7.9 points. Best day to fly: Sat (77.3%); worst: Mon (57.1%). Seasonality matters: Jan is the most reliable month (89.3%), Sep the worst (41.2%). Cancellation rate is 2.8% — have a backup plan. Average arrival delay: 31.7 minutes.

Data: US BTS, last 12 months.

31.7 minavg arrival delay

2.8%cancelled

1diverted

284flights tracked

Arrival delay distribution

Early/on time · 1241–60 min · 11261–180 min · 30180+ min · 9

On-time by day of week

Mon

57.1%

Tue

72.5%

Wed

64.3%

Thu

64.3%

Fri

72.1%

Sat

77.3%

Sun

59.1%

On-time by month

41.2%

Sep

43.5%

Oct

70.0%

Nov

62.5%

Dec

89.3%

Jan

63.0%

Feb

80.0%

Mar

70.0%

Apr

66.7%

May

73.9%

Jun

63.6%

Jul

42.9%

Aug

← All flights on BOS–LAX