LAS to ROC flight delays & on-time performance
Nonstop flights from Harry Reid International Airport to Frederick Douglass Greater Rochester International Airport · 2,040 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LAS or ROC 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 Rochester (ROC) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0% were cancelled, and 5% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (96% on time); around 3pm did worst (66%).
- Saturday was the most reliable day to fly (100% on time) and Sunday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (56%).
Which airline is most on time from LAS to ROC?
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 79% | 0.0% | 12 min | 5.4% | 149 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am81%21 flights
- 8am79%38 flights
- 10am96%24 flights
- 2pm72%25 flights
- 3pm66%35 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday75%0.0% cancelled
- Tuesday79%0.0% cancelled
- Wednesday85%0.0% cancelled
- Thursday77%0.0% cancelled
- Friday81%0.0% cancelled
- Saturday100%0.0% cancelled
- Sunday68%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 aircraft56%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion11%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
LAS to ROC: common questions
- How often are LAS to ROC 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 Rochester cancelled?
- 0.0% of scheduled flights were cancelled (0 of 149).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 47 min behind schedule on average, and 5.4% of flights were an hour or more late.
- How long is taxi time at LAS?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ROC to LAS — 77% 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 → ROC, nonstop flights by US airlines that report to the DOT. How we calculate this.