ON TIMEBOARD

DL 2955 on time

Delta Air Lines 2955: Seattle to Las Vegas at 4:20 p.m. (past 12 months)

On time
71%
200 flights · likely 64–77%
Cancelled
1.0%
of scheduled flights
Typical arrival
0 min
median vs schedule
When late
+43 min
average delay
Similar flights
62%
DL, same route & hour

About 1 in 3 DL 2955 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (29%); 1.0% were cancelled. The typical flight landed 0 minutes early.

DL 2955: SEA → LAS

Scheduled to leave Seattle at 4:20 p.m. local time. Over the past year it arrived on time 71% of the time (200 flights), better than other DL flights on the route at that hour (62%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Jun 2025: 78% on time (27 flights)78JunJul 2025: 88% on time (26 flights)88JulAug 2025: too few flights (8 flights)AugDec 2025: too few flights (9 flights)DecJan 2026: 78% on time (18 flights)78JanFeb 2026: too few flights (9 flights)FebMar 2026: 71% on time (21 flights)71MarApr 2026: 88% on time (26 flights)88AprMay 2026: 50% on time (26 flights)50MayJun 2026: 86% on time (29 flights)86JunJul 2026: 71% on time (31 flights)71JulAug 2026: 48% on time (31 flights)48Aug

By day of week

DayFlightsOn time
Monday3373%
Tuesday3174%
Wednesday2972%
Thursday2966%
Friday3161%
Saturday16—
Sunday3177%

Why it was late

Airline (crew, maintenance, ops) 46%Air traffic & airport (NAS) 36%Late inbound plane 16%Severe weather 2%

All flights SEA → LAS · Connecting off DL 2955? Check the risk

Questions

How often is DL 2955 from SEA to LAS late?

Delta Air Lines 2955 from Seattle, WA to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 29% of 200 scheduled flights between September 2025 and August 2026. 1.0% 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.