Detroit (DTW) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Detroit (DTW) to Las Vegas (LAS) effectively runs on two schedules. In May 2025, 90% of arrivals were on time; in June 2026 that fell to 62% — a 28-point seasonal swing. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 74%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 7.6
- last 12 months
- Duration
- 4h 26m
- scheduled
- Distance
- 1,749 mi
Best airline from DTW to LAS
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Spirit Airlinesmost reliable | 83% | 11 min | 0.3% | 1,487 |
| Delta Air Lines | 77% | 15 min | 0.7% | 4,111 |
| Southwest Airlines | 75% | 13 min | 0.0% | 608 |
| Frontier Airlines | 73% | 17 min | 0.0% | 128 |
Monthly on-time trend
Best time to fly from DTW to LAS
Aim for departures around 5 a.m. (90% on-time); avoid 1 p.m. departures (69%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 14 min |
| Tuesdaybest | 83% | 11 min |
| Wednesday | 81% | 13 min |
| Thursday | 77% | 14 min |
| Friday | 73% | 18 min |
| Saturday | 81% | 10 min |
| Sunday | 78% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft21%
- Airline operations48%
- National airspace system28%
- Weather3%
Frequently asked questions
- How often are flights from DTW to LAS delayed?
- 22% of DTW–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from DTW to LAS?
- Spirit Airlines has the best on-time record on this route at 83%, based on 1,487 flights. 4 airlines flew DTW–LAS frequently enough to compare in this period.
- What is the best time of day to fly from DTW to LAS?
- Departures around 5 a.m. have the best record (90% on-time), while departures around 1 p.m. have the worst (69%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DTW to LAS?
- The scheduled DTW–LAS flight time averages 4h 26m over 1,749 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are DTW to LAS flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DTW to LAS?
- June 2026 was the roughest month in this dataset, with only 62% of arrivals on time. The best was May 2025 at 90%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 6,334 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.