ON TIMEBOARD

DL 4004 on time

Delta Air Lines 4004: Bend to Salt Lake City at 5:05 a.m. (past 12 months)

On time
89%
255 flights · likely 84–92%
Cancelled
1.2%
of scheduled flights
Typical arrival
−13 min
median vs schedule
When late
+187 min
average delay
Similar flights
89%
DL, same route & hour

About 1 in 9 DL 4004 flights from Bend arrived 15+ minutes late, diverted or cancelled over the past year (11%); 1.2% were cancelled. The typical flight landed 13 minutes early.

DL 4004: RDM → SLC

Scheduled to leave Bend at 5:05 a.m. local time, operated by SkyWest as OO 4004. Over the past year it arrived on time 89% of the time (255 flights), in line with other DL flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 83% on time (30 flights)83AprMay 2025: 100% on time (31 flights)100MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 94% on time (31 flights)94MarApr 2026: 97% on time (30 flights)97AprMay 2026: 97% on time (31 flights)97MayJun 2026: 97% on time (30 flights)97JunJul 2026: 84% on time (31 flights)84JulAug 2026: 94% on time (31 flights)94Aug

By day of week

DayFlightsOn time
Monday3786%
Tuesday3686%
Wednesday3689%
Thursday3692%
Friday3686%
Saturday3792%
Sunday3789%

Why it was late

Airline (crew, maintenance, ops) 64%Severe weather 34%Air traffic & airport (NAS) 1%

All flights RDM → SLC · Connecting off DL 4004? Check the risk

Questions

How often is DL 4004 from RDM to SLC late?

Delta Air Lines 4004 from Bend/Redmond, OR to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 11% of 255 scheduled flights between September 2025 and August 2026. 1.2% 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.