78% of flights from Cincinnati to Las Vegas arrived on time over the past 12 months. That is about the typical U.S. route. Most reliable airline: Allegiant Air (83%). 9% of flights arrived more than an hour late or not at all.
How late?
The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for CVG → LAS: when a flight was late, it was under 45 minutes late 51% of the time. About 1 in 14 flights landed an hour or more late, and 1 in 43 three hours or more; 1.5% were cancelled outright.
- On time or early78%
- 15–30 min late7.3%
- 30–60 min late6.3%
- 1–2 hours late3.4%
- 2–3 hours late1.3%
- 3+ hours late2.3%
- Diverted0.1%
- Cancelled1.5%
Share of all 682 scheduled flights, past 12 months, by arrival time against schedule.
By airline
| Airline | Flights | On time | Cancelled | Typical arrival | 1h+ late | Avg when late | Operated by |
|---|---|---|---|---|---|---|---|
| Delta Air Lines | 356 | 79% | 0.8% | −6 min | 4.5% | +56 min | Delta Air Lines |
| Frontier Airlines | 217 | 72% | 2.8% | −5 min | 11.1% | +110 min | Frontier Airlines |
| Allegiant Air | 109 | 83% | 0.9% | −9 min | 7.3% | +157 min | Allegiant Air |
Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.
Best time of day to fly
On-time rate by scheduled departure hour (local time at CVG). Delays build through the day as late planes knock on, so early flights usually do best.
By airline and hour
| Departs | Delta Air Lines |
|---|---|
| 7 a.m. | 79% |
By month
Each calendar month pooled over 2023–2026. Best: November (88%). Worst: July (69%).
By day of week
| Day | Flights | On time | Cancelled |
|---|---|---|---|
| Monday | 97 | — | — |
| Tuesday | 60 | — | — |
| Wednesday | 56 | — | — |
| Thursday | 149 | 79% | 1.3% |
| Friday | 101 | 75% | 1.0% |
| Saturday | 64 | — | — |
| Sunday | 155 | 81% | 2.6% |
Why flights were late
Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.
Cancellations: airline 6 · weather 4
Month by month
Not enough months with data to draw a trend.
Flight numbers on this route
Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.
| Flight | Departs | Flights | On time | Cancelled | Typical arrival | Operated by |
|---|---|---|---|---|---|---|
| DL 2915 | 7:00 a.m. | 356 | 79% | 0.8% | −6 min | Delta Air Lines |
| F9 3521 | 8:40 p.m. | 174 | 69% | 2.9% | −4 min | Frontier Airlines |
Worst days in the past year
| Date | Flights | On time | Cancelled |
|---|---|---|---|
| Dec 27, 2025 | 3 | 0% | 1 |
| Aug 13, 2026 | 3 | 0% | 0 |
| Jun 11, 2026 | 3 | 0% | 0 |
| Jan 25, 2026 | 3 | 0% | 2 |
| Dec 14, 2025 | 3 | 0% | 0 |
Questions
How often are flights from CVG to LAS on time?
78% of 682 scheduled flights from Cincinnati, OH to Las Vegas, NV arrived within 15 minutes of schedule between September 2025 and August 2026. 1.5% were cancelled.
Which airline is most on time from CVG to LAS?
Allegiant Air: 83% of its 109 flights on the route arrived on time. Delta Air Lines: 79%. Frontier Airlines: 72%.
What month has the most delays from CVG to LAS?
July (69% on time). The best month is November (88%), over 2023–2026.
Related
- LAS → CVG (return)
- Cincinnati Northern Kentucky (CVG) delays by hour
- Flights into Las Vegas Harry Reid (LAS)
- Delta Air Lines on-time record
- Frontier Airlines on-time record
- Allegiant Air on-time record
- Connecting off this flight? Check the risk
Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.