Flight Reliability
DL 544 · Delta Air Lines
Detroit → Las Vegas (DTW–LAS)97% of its flights flew this route. The rest (LAS–SLC) are included in these numbers.
- 75%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.3%
- Cancelled
- 4 min early
- Median arrival delay
Based on 289 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
DL 544 departing between 3–6 PM arrived on time 90% of the time, versus 75% between 6–9 PM.
Mondays have been rough.
DL 544 arrived on time 86% of the time on Wednesdays and just 63% on Mondays. That gap is worth planning around.
A bit behind the Delta Air Lines network.
DL 544 arrived on time 75% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 289 scheduled flights, only 0.3% were cancelled.
The breakdown
- Mon63%(46 flights)
- Tue77%(31 flights)
- Wed86%(29 flights)
- Thu77%(43 flights)
- Fri73%(45 flights)
- Sat82%(45 flights)
- Sun71%(49 flights)
- 3–6 PM90%(10 flights)
- 6–9 PM75%(278 flights)
Jun 65% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 65% | 23 |
| July 2025 | 79% | 28 |
| August 2025 | 85% | 20 |
| September 2025 | 67% | 15 |
| October 2025 | 83% | 24 |
| November 2025 | 75% | 20 |
| December 2025 | 60% | 10 |
| January 2026 | 50% | 30 |
| February 2026 | 61% | 28 |
| March 2026 | 87% | 31 |
| April 2026 | 90% | 30 |
| May 2026 | 86% | 29 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 288
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 289 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.