ON TIMEBOARD
Delta Air Lines / DTW → LAS

DL 334 on time

Delta Air Lines 334: Detroit to Las Vegas at 8:59 a.m.; Las Vegas to Detroit at 11:27 a.m. (past 12 months). Figures below the title are for DTW → LAS, its busiest leg

On time
79%
362 flights · likely 74–83%
Cancelled
0.8%
of scheduled flights
Typical arrival
−2 min
median vs schedule
When late
+57 min
average delay
Similar flights
82%
DL, same route & hour

About 1 in 5 DL 334 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (21%); 0.8% were cancelled. The typical flight landed 2 minutes early.

DL 334: DTW → LAS

Scheduled to leave Detroit at 8:59 a.m. local time. Over the past year it arrived on time 79% of the time (362 flights), in line with other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 90% on time (31 flights)90OctNov 2025: 75% on time (28 flights)75NovDec 2025: 60% on time (30 flights)60DecJan 2026: 65% on time (31 flights)65JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 90% on time (31 flights)90MarApr 2026: 87% on time (30 flights)87AprMay 2026: 84% on time (31 flights)84MayJun 2026: 63% on time (30 flights)63JunJul 2026: 81% on time (31 flights)81JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5285%
Tuesday5277%
Wednesday5287%
Thursday5175%
Friday5176%
Saturday5283%
Sunday5269%

Why it was late

Airline (crew, maintenance, ops) 62%Air traffic & airport (NAS) 26%Late inbound plane 7%Severe weather 5%

All flights DTW → LAS · Connecting off DL 334? Check the risk

DL 334: LAS → DTW

Scheduled to leave Las Vegas at 11:27 a.m. local time. Over the past year it arrived on time 85% of the time (210 flights), better than other DL flights on the route at that hour (82%). Last seen in the data Aug 2, 2026.

Month by month

40%70%100%Apr 2025: too few flights (13 flights)AprMay 2025: 80% on time (25 flights)80MayJun 2025: 87% on time (30 flights)87JunJul 2025: too few flights (6 flights)JulJan 2026: 74% on time (27 flights)74JanFeb 2026: 96% on time (28 flights)96FebMar 2026: 90% on time (31 flights)90MarApr 2026: 90% on time (30 flights)90AprMay 2026: 90% on time (31 flights)90MayJun 2026: 83% on time (30 flights)83JunJul 2026: 71% on time (31 flights)71JulAug 2026: too few flights (2 flights)Aug

By day of week

DayFlightsOn time
Monday3093%
Tuesday3090%
Wednesday3087%
Thursday3087%
Friday3077%
Saturday3083%
Sunday3080%

Why it was late

Late inbound plane 52%Airline (crew, maintenance, ops) 26%Air traffic & airport (NAS) 13%Severe weather 9%

All flights LAS → DTW · Connecting off DL 334? Check the risk

Questions

How often is DL 334 from DTW to LAS late?

Delta Air Lines 334 from Detroit, MI to Las Vegas, NV arrived 15 or more minutes late, was diverted or was cancelled on 21% of 362 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

How often is DL 334 from LAS to DTW late?

Delta Air Lines 334 from Las Vegas, NV to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 15% of 210 scheduled flights between September 2025 and August 2026. 0.9% 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.