ON TIMEBOARD

DL 453 on time

Delta Air Lines 453: Atlanta to Salt Lake City at 9:15 p.m. (past 12 months)

On time
75%
346 flights · likely 70–79%
Cancelled
0.9%
of scheduled flights
Typical arrival
−3 min
median vs schedule
When late
+80 min
average delay
Similar flights
75%
DL, same route & hour

About 1 in 4 DL 453 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (25%); 0.9% were cancelled. The typical flight landed 3 minutes early.

DL 453: ATL → SLC

Scheduled to leave Atlanta at 9:15 p.m. local time. Over the past year it arrived on time 75% of the time (346 flights), in line with other DL flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Atlanta to Salt Lake City (99% of days). Delta Air Lines's last ATL–SLC flight was cancelled 0.8% of the time, against 0.4% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 8:15 a.m. the next morning.

Month by month

40%70%100%Sep 2025: 86% on time (28 flights)86SepOct 2025: 87% on time (30 flights)87OctNov 2025: 70% on time (30 flights)70NovDec 2025: 74% on time (19 flights)74DecJan 2026: 67% on time (27 flights)67JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 74% on time (31 flights)74MarApr 2026: 73% on time (30 flights)73AprMay 2026: 68% on time (31 flights)68MayJun 2026: 73% on time (30 flights)73JunJul 2026: 65% on time (31 flights)65JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday5171%
Tuesday5076%
Wednesday5086%
Thursday5072%
Friday5074%
Saturday4672%
Sunday4973%

Why it was late

Airline (crew, maintenance, ops) 58%Late inbound plane 26%Air traffic & airport (NAS) 11%Severe weather 5%

All flights ATL → SLC · Connecting off DL 453? Check the risk

Questions

How often is DL 453 from ATL to SLC late?

Delta Air Lines 453 from Atlanta, GA to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 25% of 346 scheduled flights between September 2025 and August 2026. 0.9% 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.