Route Reliability
Las Vegas → Des Moines
LAS–DSM · 1,216 miles · Harry Reid International Airport to Des Moines International Airport
- 80%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.5%
- Cancelled
- 595
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Southwest Airlines81%365 flights
- 2.Allegiant Air79%230 flights
What the data says
Morning-you made the right choice.
LAS–DSM flights departing between 6–9 AM arrived on time 93% of the time, versus 71% between 3–6 PM.
Sunday scaries are real for this one.
LAS–DSM flights arrived on time 91% of the time on Tuesdays and just 68% on Sundays. That gap is worth planning around.
Not much between Southwest Airlines and Allegiant Air.
On this route they all land within 79% to 81% on time. Pick on schedule and price.
Recent months have been rougher.
LAS–DSM flights arrived on time 78% of the time over the last three months in the data, compared with 85% in the three months before that.
Flights on this route
The breakdown
- Mon76%(102 flights)
- Tue91%(53 flights)
- Wed89%(73 flights)
- Thu78%(99 flights)
- Fri86%(103 flights)
- Sat82%(54 flights)
- Sun68%(104 flights)
- 6–9 AM93%(41 flights)
- 9 AM–12 PM82%(229 flights)
- 12–3 PM82%(179 flights)
- 3–6 PM71%(137 flights)
- 6–9 PM—(2 flights)
Jun 88% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 88% | 51 |
| July 2025 | 81% | 53 |
| August 2025 | 78% | 50 |
| September 2025 | 65% | 46 |
| October 2025 | 81% | 53 |
| November 2025 | 81% | 47 |
| December 2025 | 78% | 49 |
| January 2026 | 85% | 48 |
| February 2026 | 91% | 44 |
| March 2026 | 82% | 50 |
| April 2026 | 78% | 46 |
| May 2026 | 73% | 51 |
Keep nerding
Based on 595 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.