ON TIMEBOARD

DL 3502 on time

Delta Air Lines 3502: Tucson to Los Angeles at 6:20 a.m. (past 12 months)

On time
94%
273 flights · likely 91–96%
Cancelled
0.0%
of scheduled flights
Typical arrival
−15 min
median vs schedule
When late
+98 min
average delay
Similar flights
97%
DL, same route & hour

About 1 in 17 DL 3502 flights from Tucson arrived 15+ minutes late, diverted or cancelled over the past year (6%); 0.0% were cancelled. The typical flight landed 15 minutes early.

DL 3502: TUS → LAX

Scheduled to leave Tucson at 6:20 a.m. local time, operated by SkyWest as OO 3502. Over the past year it arrived on time 94% of the time (273 flights), in line with other DL flights on the route at that hour (97%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: 90% on time (30 flights)90DecJan 2026: 97% on time (31 flights)97JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 94% on time (31 flights)94MarApr 2026: 100% on time (30 flights)100AprMay 2026: 97% on time (31 flights)97MayJun 2026: 93% on time (30 flights)93JunJul 2026: 97% on time (31 flights)97JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday3987%
Tuesday3995%
Wednesday3995%
Thursday3995%
Friday3997%
Saturday3997%
Sunday3992%

Why it was late

Airline (crew, maintenance, ops) 49%Severe weather 45%Air traffic & airport (NAS) 7%

All flights TUS → LAX · Connecting off DL 3502? Check the risk

Questions

How often is DL 3502 from TUS to LAX late?

Delta Air Lines 3502 from Tucson, AZ to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 6% of 273 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.