DL437 LAX → BOS

Delta Air Lines · Los Angeles, CA to Boston, MA · 341 flights observed, 2025-07-01 to 2026-06-30 · 2,611 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -3 min, while the worst 10% run +70 min or later.
On-time arrival
74%
Median delay
-3 min
90th percentile
+70 min
Cancellation rate
1%

How often is DL437 on time?

Across 341 flights on LAX → BOS from 2025-07-01 to 2026-06-30, DL437 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +70 min or later. 1% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time25074%
16-30 min299%
31-60 min196%
61-120 min185%
2+ hrs216%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073090%-4 min
2025-083187%-3 min
2025-093073%+22 min
2025-102962%+49 min
2025-112966%+20 min
2025-121369%+28 min
2026-012962%+34 min
2026-022778%+48 min
2026-033174%+21 min
2026-042868%+17 min
2026-053080%+3 min
2026-063077%+9 min

Performance by day of week

DayFlightsOn-time
Mon4976%
Tue5082%
Wed4971%
Thu4869%
Fri4774%
Sat4772%
Sun4774%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…