ON TIMEBOARD

DL 1210 on time

Delta Air Lines 1210: Salt Lake City to San Diego at 3:00 p.m.; San Diego to Salt Lake City at 5:01 p.m. (past 12 months). Figures below the title are for SLC → SAN, its busiest leg

On time
74%
364 flights · likely 69–78%
Cancelled
0.5%
of scheduled flights
Typical arrival
−2 min
median vs schedule
When late
+52 min
average delay
Similar flights
74%
DL, same route & hour

About 1 in 4 DL 1210 flights from Salt Lake City arrived 15+ minutes late, diverted or cancelled over the past year (26%); 0.5% were cancelled. The typical flight landed 2 minutes early.

DL 1210: SLC → SAN

Scheduled to leave Salt Lake City at 3:00 p.m. local time. Over the past year it arrived on time 74% of the time (364 flights), in line with other DL flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 68% on time (31 flights)68OctNov 2025: 83% on time (29 flights)83NovDec 2025: 58% on time (31 flights)58DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 87% on time (31 flights)87MarApr 2026: 73% on time (30 flights)73AprMay 2026: 84% on time (31 flights)84MayJun 2026: 60% on time (30 flights)60JunJul 2026: 71% on time (31 flights)71JulAug 2026: 61% on time (31 flights)61Aug

By day of week

DayFlightsOn time
Monday5374%
Tuesday5283%
Wednesday5279%
Thursday5171%
Friday5273%
Saturday5279%
Sunday5262%

Why it was late

Late inbound plane 34%Air traffic & airport (NAS) 32%Airline (crew, maintenance, ops) 27%Severe weather 7%

All flights SLC → SAN · Connecting off DL 1210? Check the risk

DL 1210: SAN → SLC

Scheduled to leave San Diego at 5:01 p.m. local time. Over the past year it arrived on time 80% of the time (359 flights), in line with other DL flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 84% on time (31 flights)84OctNov 2025: 90% on time (29 flights)90NovDec 2025: 74% on time (31 flights)74DecJan 2026: 70% on time (27 flights)70JanFeb 2026: 89% on time (27 flights)89FebMar 2026: 100% on time (31 flights)100MarApr 2026: 80% on time (30 flights)80AprMay 2026: 84% on time (31 flights)84MayJun 2026: 73% on time (30 flights)73JunJul 2026: 74% on time (31 flights)74JulAug 2026: 58% on time (31 flights)58Aug

By day of week

DayFlightsOn time
Monday5383%
Tuesday5288%
Wednesday5285%
Thursday5176%
Friday5269%
Saturday4785%
Sunday5273%

Why it was late

Late inbound plane 83%Air traffic & airport (NAS) 10%Airline (crew, maintenance, ops) 8%

All flights SAN → SLC · Connecting off DL 1210? Check the risk

Questions

How often is DL 1210 from SLC to SAN late?

Delta Air Lines 1210 from Salt Lake City, UT to San Diego, CA arrived 15 or more minutes late, was diverted or was cancelled on 26% of 364 scheduled flights between September 2025 and August 2026. 0.5% were cancelled.

How often is DL 1210 from SAN to SLC late?

Delta Air Lines 1210 from San Diego, CA to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 20% of 359 scheduled flights between September 2025 and August 2026. 0.6% 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.