Southwest Airlines DTW to LAS on-time performance
Southwest Airlines nonstop flights from Detroit to Las Vegas · Aug 2025 – Jul 2026
On-time arrivals
70%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
14 min
43 min when late
Rank on route
#3 of 4
route average 75% on time
Key facts
- Southwest Airlines flights on DTW to LAS arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 5% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (48%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion18%
- Extreme weather1%
- Security1%
Other airlines on DTW to LAS
- Delta Air Lines75% on time · 17 min avg delay
- Spirit Airlines80% on time · 11 min avg delay
- Frontier Airlines65% on time · 23 min avg delay
Full DTW to LAS comparison →
Southwest Airlines on-time record across all routes →
337 Southwest Airlines flights tracked on this route; 0 cancelled, 2 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.