LAS to DSM flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Des Moines International Airport · 1,216 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or DSM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Las Vegas (LAS) to Des Moines (DSM) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.3% were cancelled, and 5% arrived an hour or more late.
- Allegiant Air was the most punctual airline here (81% on time); Southwest Airlines was the least (77%).
- Departures scheduled around 9am did best (88% on time); around 3pm did worst (67%).
- Wednesday was the most reliable day to fly (89% on time) and Sunday the least (70%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (55%).
Which airline is most on time from LAS to DSM?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 81% | 0.0% | 25 min | 8.8% | 230 |
| Southwest Airlines | 77% | 0.5% | 10 min | 1.9% | 365 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am87%15 flights
- 8am91%11 flights
- 9am88%57 flights
- 10am81%97 flights
- 11am68%78 flights
- 12pm73%60 flights
- 1pm81%109 flights
- 2pm87%15 flights
- 3pm67%31 flights
- 4pm81%48 flights
- 5pm76%65 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%0.0% cancelled
- Tuesday83%0.0% cancelled
- Wednesday89%0.0% cancelled
- Thursday78%0.0% cancelled
- Friday83%0.0% cancelled
- Saturday85%0.0% cancelled
- Sunday70%1.9% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)55%
- Late-arriving aircraft30%
- Air traffic control & airport congestion9%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
LAS to DSM: common questions
- How often are LAS to DSM flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Las Vegas to Des Moines cancelled?
- 0.3% of scheduled flights were cancelled (2 of 595).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 68 min behind schedule on average, and 4.6% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DSM to LAS — 81% on time
More flights from Las Vegas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LAS → DSM, nonstop flights by US airlines that report to the DOT. How we calculate this.