ON TIMEBOARD

DL 1667 on time

Delta Air Lines 1667: Salt Lake City to Denver at 8:59 p.m. (past 12 months)

On time
79%
272 flights · likely 74–84%
Cancelled
0.0%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+63 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 5 DL 1667 flights from Salt Lake City arrived 15+ minutes late, diverted or cancelled over the past year (21%); 0.0% were cancelled. The typical flight landed 8 minutes early.

DL 1667: SLC → DEN

Scheduled to leave Salt Lake City at 8:59 p.m. local time. Over the past year it arrived on time 79% of the time (272 flights), in line with other DL flights on the route at that hour (82%). Last seen in the data Aug 30, 2026.

Usually Delta Air Lines's last flight of the day from Salt Lake City to Denver (100% of days). Delta Air Lines's last SLC–DEN flight was cancelled 0.0% of the time, against 0.2% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 7:45 a.m. the next morning.

Month by month

40%70%100%Sep 2025: 77% on time (22 flights)77SepOct 2025: 68% on time (22 flights)68OctNov 2025: 91% on time (23 flights)91NovDec 2025: 73% on time (26 flights)73DecJan 2026: too few flights (11 flights)JanFeb 2026: too few flights (8 flights)FebMar 2026: 76% on time (21 flights)76MarApr 2026: 81% on time (26 flights)81AprMay 2026: 87% on time (30 flights)87MayJun 2026: 81% on time (27 flights)81JunJul 2026: 70% on time (30 flights)70JulAug 2026: 85% on time (26 flights)85Aug

By day of week

DayFlightsOn time
Monday4379%
Tuesday4185%
Wednesday4475%
Thursday4281%
Friday4482%
Saturday12—
Sunday4678%

Why it was late

Airline (crew, maintenance, ops) 61%Late inbound plane 26%Air traffic & airport (NAS) 12%Severe weather 1%

All flights SLC → DEN · Connecting off DL 1667? Check the risk

Questions

How often is DL 1667 from SLC to DEN late?

Delta Air Lines 1667 from Salt Lake City, UT to Denver, CO arrived 15 or more minutes late, was diverted or was cancelled on 21% of 272 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.