ON TIMEBOARD

DL 491 on time

Delta Air Lines 491: Bozeman to Salt Lake City at 5:15 a.m. (past 12 months)

On time
94%
255 flights · likely 91–96%
Cancelled
0.0%
of scheduled flights
Typical arrival
−13 min
median vs schedule
When late
+97 min
average delay
Similar flights
94%
DL, same route & hour

About 1 in 17 DL 491 flights from Bozeman arrived 15+ minutes late, diverted or cancelled over the past year (6%); 0.0% were cancelled. The typical flight landed 13 minutes early.

DL 491: BZN → SLC

Scheduled to leave Bozeman at 5:15 a.m. local time. Over the past year it arrived on time 94% of the time (255 flights), in line with other DL flights on the route at that hour (94%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: too few flights (13 flights)AprMay 2025: 100% on time (25 flights)100MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 94% on time (31 flights)94JanFeb 2026: 96% on time (28 flights)96FebMar 2026: 97% on time (31 flights)97MarApr 2026: 83% on time (30 flights)83AprMay 2026: 97% on time (31 flights)97MayJun 2026: 100% on time (30 flights)100JunJul 2026: 97% on time (31 flights)97JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday3795%
Tuesday3697%
Wednesday3697%
Thursday3697%
Friday3689%
Saturday3795%
Sunday3789%

Why it was late

Airline (crew, maintenance, ops) 48%Late inbound plane 41%Air traffic & airport (NAS) 11%

All flights BZN → SLC · Connecting off DL 491? Check the risk

Questions

How often is DL 491 from BZN to SLC late?

Delta Air Lines 491 from Bozeman, MT to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 6% of 255 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.