ON TIMEBOARD

DL 857 on time

Delta Air Lines 857: Las Vegas to Atlanta at 12:33 a.m. (past 12 months)

On time
72%
172 flights · likely 65–78%
Cancelled
0.6%
of scheduled flights
Typical arrival
+4 min
median vs schedule
When late
+42 min
average delay
Similar flights
77%
DL, same route & hour

About 1 in 4 DL 857 flights from Las Vegas arrived 15+ minutes late, diverted or cancelled over the past year (28%); 0.6% were cancelled. The typical flight landed 4 minutes late.

DL 857: LAS → ATL

Scheduled to leave Las Vegas at 12:33 a.m. local time. Over the past year it arrived on time 72% of the time (172 flights), worse than other DL flights on the route at that hour (77%). Last seen in the data Aug 30, 2026.

Month by month

40%70%100%Apr 2025: 57% on time (30 flights)57AprMay 2025: 87% on time (31 flights)87MayJun 2025: 69% on time (29 flights)69JunNov 2025: too few flights (2 flights)NovDec 2025: too few flights (11 flights)DecJan 2026: too few flights (2 flights)JanMar 2026: 79% on time (24 flights)79MarApr 2026: 73% on time (30 flights)73AprMay 2026: 65% on time (31 flights)65MayJun 2026: 86% on time (29 flights)86JunJul 2026: 56% on time (25 flights)56JulAug 2026: 72% on time (18 flights)72Aug

By day of week

DayFlightsOn time
Monday2352%
Tuesday2282%
Wednesday2673%
Thursday2471%
Friday2467%
Saturday2475%
Sunday2983%

Why it was late

Late inbound plane 66%Airline (crew, maintenance, ops) 19%Air traffic & airport (NAS) 15%

All flights LAS → ATL · Connecting off DL 857? Check the risk

Questions

How often is DL 857 from LAS to ATL late?

Delta Air Lines 857 from Las Vegas, NV to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 28% of 172 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.