Columbus (CMH) to Las Vegas (LAS): On-Time Performance
Data through May 2026
When you fly CMH to LAS matters as much as anything else about the booking: the route swung from 93% on-time in January 2026 to just 68% in July 2024. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 68%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 2.6
- last 12 months
- Duration
- 4h 28m
- scheduled
- Distance
- 1,771 mi
Best airline from CMH to LAS
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 81% | 12 min | 0.3% | 1,676 |
| Spirit Airlines | 76% | 18 min | 1.2% | 409 |
Monthly on-time trend
Best time to fly from CMH to LAS
Aim for departures around 8 a.m. (100% on-time); avoid 7 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 16 min |
| Tuesdaybest | 86% | 7 min |
| Wednesday | 85% | 13 min |
| Thursday | 75% | 15 min |
| Friday | 79% | 13 min |
| Saturday | 80% | 15 min |
| Sunday | 80% | 11 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 operations26%
- National airspace system21%
- Weather1%
Frequently asked questions
- How often are flights from CMH to LAS delayed?
- 20% of CMH–LAS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 13 minutes.
- Which airline is most reliable from CMH to LAS?
- Southwest Airlines has the best on-time record on this route at 81%, based on 1,676 flights. 2 airlines flew CMH–LAS frequently enough to compare in this period.
- What is the best time of day to fly from CMH to LAS?
- Departures around 8 a.m. have the best record (100% on-time), while departures around 7 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CMH to LAS?
- The scheduled CMH–LAS flight time averages 4h 28m over 1,771 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are CMH to LAS flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from CMH to LAS?
- July 2024 was the roughest month in this dataset, with only 68% of arrivals on time. The best was January 2026 at 93%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 2,085 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.