RAP to LAS flight delays & on-time performance
Nonstop flights from Rapid City Regional Airport to Harry Reid International Airport · 843 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at RAP or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Rapid City (RAP) to Las Vegas (LAS) arrived on time 65% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 13% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10pm did best (75% on time); around 9pm did worst (50%).
- Sunday was the most reliable day to fly (75% on time) and Thursday the least (53%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from RAP to LAS?
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 | 65% | 0.0% | 33 min | 12.7% | 111 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5pm67%44 flights
- 9pm50%26 flights
- 10pm75%20 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%0.0% cancelled
- Tuesday100%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday53%0.0% cancelled
- Friday50%0.0% cancelled
- Saturday33%0.0% cancelled
- Sunday75%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion28%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
RAP to LAS: common questions
- How often are RAP to LAS flights on time?
- 65% 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 Rapid City to Las Vegas cancelled?
- 0.0% of scheduled flights were cancelled (0 of 111).
- How long are typical delays?
- Across all flights the average arrival delay was 33 min (early arrivals count as zero). Flights that were late arrived 91 min behind schedule on average, and 12.7% of flights were an hour or more late.
- How long is taxi time at RAP?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to RAP — 71% on time
More flights from Rapid City
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: RAP → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.