Cleveland (CLE) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Cleveland (CLE) to Las Vegas (LAS) effectively runs on two schedules. In September 2025, 88% of arrivals were on time; in December 2025 that fell to 60% — a 29-point seasonal swing. Across the full period the route averages 77% on-time against a national 78%.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 2.7
- last 12 months
- Duration
- 4h 40m
- scheduled
- Distance
- 1,824 mi
Best airline from CLE to LAS
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 78% | 11 min | 0.3% | 692 |
| Frontier Airlines | 77% | 20 min | 1.7% | 1,357 |
Monthly on-time trend
Best time to fly from CLE to LAS
Aim for departures around 10 a.m. (85% on-time); avoid 7 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 27 min |
| Tuesday | 77% | 17 min |
| Wednesdaybest | 87% | 9 min |
| Thursday | 76% | 16 min |
| Friday | 79% | 11 min |
| Saturday | 80% | 15 min |
| Sunday | 71% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft51%
- Airline operations32%
- National airspace system16%
- Weather2%
Frequently asked questions
- How often are flights from CLE to LAS delayed?
- 23% of CLE–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 17 minutes.
- Which airline is most reliable from CLE to LAS?
- Southwest Airlines has the best on-time record on this route at 78%, based on 692 flights. 2 airlines flew CLE–LAS frequently enough to compare in this period.
- What is the best time of day to fly from CLE to LAS?
- Departures around 10 a.m. have the best record (85% on-time), while departures around 7 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CLE to LAS?
- The scheduled CLE–LAS flight time averages 4h 40m over 1,824 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are CLE to LAS flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from CLE to LAS?
- December 2025 was the roughest month in this dataset, with only 60% of arrivals on time. The best was September 2025 at 88%. If your dates are flexible, that 29-point gap is worth planning around.
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Based on 2,052 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.